Correct MiniCPM5 thinking, history and nucleus sampling; publish multi-turn audit

README.md

@@ -29,7 +29,7 @@ Send your first message. If the model is not loaded, a **Load model & send** dia
 
 If your browser blocks storage inside Hugging Face's embedded view, use the app's **Open workspace in a new tab** button or [open the app directly](https://mike0021-minicpm5-2b-webgpu.static.hf.space/). This keeps inference and files in your browser and does not require changing browser privacy settings.
 
-Requires WebGPU with FP16 (`shader-f16`) in a browser worker, OPFS, and sufficient storage and device memory. There is a 4,096-token prompt-plus-output budget and a 12-turn limit per request. Desktop and narrow-screen layouts are included. Physical Android/iOS devices have not been tested.
+Requires WebGPU with FP16 (`shader-f16`) in a browser worker, OPFS, and sufficient storage and device memory. There is an 8,192-token prompt-plus-output budget, up to 2,048 generated tokens per model call, and a 12-turn limit per request. Desktop and narrow-screen layouts are included. Physical Android/iOS devices have not been tested.
 
 Try: **Read sales.csv, calculate total revenue using bash, and save a short report to report.md. Verify the file.**
 
@@ -70,7 +70,9 @@ Local Chromium tests on an AMD Radeon 8060S covered streaming, stopping, thinkin
 
 Warm local benchmark medians were about 35–42 decode tokens/s. At 1,890 prompt tokens, first-token latency improved about 9.5% against our own identical-weight control with all-position logits and unsplit embeddings. Timings depend on device, browser, prompt, and thermal state. See [raw validation summaries](validation).
 
-Four-bit quantization has measurable quality loss. The base model also makes mistakes: one Chinese arithmetic prompt produced an incorrect answer in both the official BF16 model and the conversion. Pi translates the model's validated XML tool calls into actions in the virtual filesystem. Integration tests do not establish broad coding-agent reliability.
+Four-bit quantization has measurable quality loss. The [multi-turn audit](research/multiturn-audit/REPORT.md) reproduced ineffective HTML/CDN edits and long, inconclusive reasoning with this export, while the original BF16 model completed the reference workflow. The base model also makes mistakes: one Chinese arithmetic prompt produced an incorrect answer in both the official BF16 model and the conversion. Pi translates validated XML tool calls into actions in the virtual filesystem. Integration tests do not establish broad coding-agent reliability.
+
+The agent now uses the 2B model's supported thinking mode and actual nucleus sampling (temperature 1, top-p .95, no top-k/min-p filter, repetition penalty 1). Completed thinking is retained separately in history and collapsed in the UI. The audit documents the earlier configuration mistakes, exact-prompt comparisons, parser/sampling corrections, and unresolved quality limits. It does not claim the 4-bit model matches BF16 or that multi-turn inference is fully optimized.
 
 ## Browser-agent verification
 

SPACE_README.md

@@ -29,7 +29,7 @@ Send your first message. If the model is not loaded, a **Load model & send** dia
 
 If your browser blocks storage inside Hugging Face's embedded view, use the app's **Open workspace in a new tab** button or [open the app directly](https://mike0021-minicpm5-2b-webgpu.static.hf.space/). This keeps inference and files in your browser and does not require changing browser privacy settings.
 
-Requires WebGPU with FP16 (`shader-f16`) in a browser worker, OPFS, and sufficient storage and device memory. There is a 4,096-token prompt-plus-output budget and a 12-turn limit per request. Desktop and narrow-screen layouts are included. Physical Android/iOS devices have not been tested.
+Requires WebGPU with FP16 (`shader-f16`) in a browser worker, OPFS, and sufficient storage and device memory. There is an 8,192-token prompt-plus-output budget, up to 2,048 generated tokens per model call, and a 12-turn limit per request. Desktop and narrow-screen layouts are included. Physical Android/iOS devices have not been tested.
 
 Try: **Read sales.csv, calculate total revenue using bash, and save a short report to report.md. Verify the file.**
 
@@ -70,7 +70,9 @@ Local Chromium tests on an AMD Radeon 8060S covered streaming, stopping, thinkin
 
 Warm local benchmark medians were about 35–42 decode tokens/s. At 1,890 prompt tokens, first-token latency improved about 9.5% against our own identical-weight control with all-position logits and unsplit embeddings. Timings depend on device, browser, prompt, and thermal state. See [raw validation summaries](validation).
 
-Four-bit quantization has measurable quality loss. The base model also makes mistakes: one Chinese arithmetic prompt produced an incorrect answer in both the official BF16 model and the conversion. Pi translates the model's validated XML tool calls into actions in the virtual filesystem. Integration tests do not establish broad coding-agent reliability.
+Four-bit quantization has measurable quality loss. The [multi-turn audit](research/multiturn-audit/REPORT.md) reproduced ineffective HTML/CDN edits and long, inconclusive reasoning with this export, while the original BF16 model completed the reference workflow. The base model also makes mistakes: one Chinese arithmetic prompt produced an incorrect answer in both the official BF16 model and the conversion. Pi translates validated XML tool calls into actions in the virtual filesystem. Integration tests do not establish broad coding-agent reliability.
+
+The agent now uses the 2B model's supported thinking mode and actual nucleus sampling (temperature 1, top-p .95, no top-k/min-p filter, repetition penalty 1). Completed thinking is retained separately in history and collapsed in the UI. The audit documents the earlier configuration mistakes, exact-prompt comparisons, parser/sampling corrections, and unresolved quality limits. It does not claim the 4-bit model matches BF16 or that multi-turn inference is fully optimized.
 
 ## Browser-agent verification
 

app/README.md

@@ -27,8 +27,14 @@ For development, use `npm run dev`. To use the already converted weights on this
 - Verified model downloading: six concurrent files, 32 MiB byte ranges, three attempts per chunk, cancellation, incremental SHA-256 checks, and atomic OPFS writes. Completed files survive an interrupted load; an incomplete file restarts on retry.
 - Cached reloads use file size, modification time, and the stored verification receipt. Model files are hashed during download; they are not rehashed on every reload.
 - Visible download / WebGPU setup / shader warm-up phases. No image requests from model-generated Markdown.
-- A 4,096-token combined prompt/output budget, up to 768 output tokens per model call, and a 12-turn limit per user request. Older complete user turns can be omitted from inference context; the full saved conversation is retained. An oversized current turn produces an explicit error.
+- MiniCPM5-2B's supported thinking mode, with completed reasoning retained separately in conversation history. Thoughts are collapsed in the terminal; click to expand. Tool-shaped text inside reasoning is never executed.
+- Temperature 1, actual top-p 0.95 sampling, no top-k/min-p filtering, and repetition penalty 1. A tested adapter applies nucleus filtering because Transformers.js 4.2.0 does not implement its exposed `top_p` option in generation.
+- An 8,192-token combined prompt/output budget, up to 2,048 generated tokens (reasoning plus answer/tool XML) per model call, and a 12-turn limit per user request. Older complete user turns can be omitted from inference context; the full saved conversation is retained. An oversized current turn produces an explicit error.
 - The terminal footer shows used/total context tokens and remaining capacity for the latest model call. It includes the formatted prompt (instructions, tool definitions, and retained history) plus generated tokens, updates during streaming, survives reloads, and resets with New chat. Unsent draft text is counted when submitted; saved turns excluded from the model context are not counted. On narrow screens the counter gets its own line.
+
+## Model quality
+
+The [September 14 multi-turn audit](../research/multiturn-audit/REPORT.md) found that the previous no-thinking/greedy profile was not faithful to the model's documented configuration. The corrected adapter handles reasoning and sampling, but the current 4-bit conversion still fails some HTML/CDN follow-ups that the original BF16 model completed. It can produce ineffective edits or exhaust its reasoning budget. Numerical conversion checks and basic tool tests do not establish general coding reliability. Cross-call KV reuse and physical-phone validation remain outstanding.
 - Responsive desktop and mobile layouts. The file workspace follows the chat on narrow screens.
 - A consistent dark theme across the terminal, header, model controls, file editor, shell, and setup dialog, including native form controls and scrollbars.
 

app/src/agent.worker.mjs

@@ -6,12 +6,15 @@ import { openStorage } from './storage.mjs';
 const emit = data => postMessage(data);
 const inference = createInference(emit);
 let workspace, agent, storage, busy = false, operation, turnCount = 0;
-const systemPrompt = `You are Pi, a coding assistant running entirely in the user's browser.
+const systemPrompt = `You are Pi, a coding assistant powered by MiniCPM5-2B, a language model from OpenBMB.
+The model, inference, tools, and workspace run entirely in the user's browser. Workspace files are stored in this browser, not on the user's operating-system filesystem.
 Use your tools to inspect and change actual files. Never claim a command ran or a file changed without a successful tool result.
 When the user explicitly asks you to use a tool, call that tool even if you already know the answer.
 Working directory: /workspace. Use read, write, edit, and bash. Keep tool calls and answers concise.
 The bash tool is just-bash: a virtual shell with cat, ls, find, grep, sed, awk, jq, sort, wc, printf, pipes, redirects, and shell scripts.
-There is no network, Python, Node.js, npm, package installation, or native binary execution. For arithmetic and data processing use bash arithmetic, awk, or jq.
+The shell cannot access the network or run Python, Node.js, npm, package installation, or native binaries. For arithmetic and data processing use bash arithmetic, awk, or jq.
+You can create and edit text files, including HTML, CSS, JavaScript, and shell scripts. HTML may reference external assets by URL; writing such a reference does not require network access from the shell. Do not claim an external asset was fetched or tested.
+Interpret short follow-ups using the conversation and inspect the relevant files when needed.
 Inspect files before editing them. After changing files, verify the result with a tool. Finish with a short factual answer.`;
 
 async function snapshot() { return { version: 1, files: await workspace.snapshot(), entries: await workspace.serialize(), messages: agent.state.messages }; }
@@ -27,7 +30,7 @@ const initialized = (async () => {
   catch (e) { emit({ type: 'persistence_error', error: 'Workspace saving is unavailable: ' + e.message }); }
   workspace = createWorkspace(saved?.files, saved?.entries);
   await workspace.ready;
-  agent = new Agent({ initialState: { model: localModel, systemPrompt, tools: workspace.tools, messages: saved?.messages ?? [] },
+  agent = new Agent({ initialState: { model: localModel, thinkingLevel: 'medium', systemPrompt, tools: workspace.tools, messages: saved?.messages ?? [] },
     streamFn: inference.streamFn, toolExecution: 'sequential',
     afterToolCall: ({ result, isError }) => ({ isError: isError || (result.details?.exitCode !== undefined && result.details.exitCode !== 0) }),
     shouldStopAfterTurn: ({ toolResults }) => {

app/src/context-usage.mjs

@@ -1,4 +1,4 @@
-export const CONTEXT_LIMIT = 4096;
+export const CONTEXT_LIMIT = 8192;
 
 // Usage describes the latest model call, not unsent draft text or the full
 // saved transcript (which can contain turns excluded from model context).

app/src/inference.mjs

@@ -1,12 +1,15 @@
 import { AutoTokenizer, AutoModelForCausalLM, TextStreamer, InterruptableStoppingCriteria, env } from '@huggingface/transformers';
 import { AssistantMessageEventStream } from '@earendil-works/pi-ai/utils/event-stream';
 import { prepareModelCache, MODEL_ID, REVISION } from './download.mjs';
-import { fitContext, parseCompletion } from './protocol.mjs';
+import { fitContext, parseCompletion, splitThinking } from './protocol.mjs';
 import { CONTEXT_LIMIT } from './context-usage.mjs';
+import { nucleusProcessor } from './sampling.mjs';
+
+const MAX_OUTPUT_TOKENS = 2048;
 
 export const localModel = { id: MODEL_ID, name: 'MiniCPM5-2B · q4f16', api: 'minicpm-webgpu',
-  provider: 'browser', baseUrl: '', reasoning: false, input: ['text'],
-  contextWindow: CONTEXT_LIMIT, maxTokens: 768, cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 } };
+  provider: 'browser', baseUrl: '', reasoning: true, input: ['text'],
+  contextWindow: CONTEXT_LIMIT, maxTokens: MAX_OUTPUT_TOKENS, cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 } };
 
 export function createInference(notify) {
   let model, tokenizer, device, loadPromise;
@@ -61,7 +64,7 @@ export function createInference(notify) {
   function streamFn(piModel, context, options = {}) {
     const stream = new AssistantMessageEventStream();
     const message = { role: 'assistant', api: piModel.api, provider: piModel.provider, model: piModel.id,
-      timestamp: Date.now(), content: [], stopReason: 'stop',
+      timestamp: Date.now(), content: [],
       usage: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0, totalTokens: 0,
         cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0, total: 0 } } };
     void (async () => {
@@ -77,18 +80,19 @@ export function createInference(notify) {
         if (!model) throw Error('Load the model first.');
         stopping.reset(); options.signal?.throwIfAborted();
         options.signal?.addEventListener('abort', abort, { once: true });
-        const maxTokens = Math.min(options.maxTokens ?? 768, 768);
+        const maxTokens = Math.min(options.maxTokens ?? MAX_OUTPUT_TOKENS, MAX_OUTPUT_TOKENS);
         const tools = context.tools ?? [];
         const templateTools = tools.map(t => ({ type: 'function', function: { name: t.name, description: t.description, parameters: t.parameters } }));
         const { inputs, dropped } = fitContext(context, messages => tokenizer.apply_chat_template(messages, {
-          tools: templateTools, enable_thinking: false, add_generation_prompt: true, return_dict: true,
+          tools: templateTools, enable_thinking: true, add_generation_prompt: true, return_dict: true,
         }), CONTEXT_LIMIT - maxTokens);
         if (dropped) notify({ type: 'context_trim', dropped });
         message.usage.input = inputs.input_ids.dims[1];
         message.usage.totalTokens = message.usage.input;
         publishUsage(true);
         stream.push({ type: 'start', partial: structuredClone(message) });
-        let raw = '', visible = '', started = false;
+        let raw = '', visible = '', started = false, thought = '', thinkingStarted = false, thinkingEnded = false;
+        let textIndex = 0;
         const start = performance.now(); let firstTokenMs;
         const streamer = new TextStreamer(tokenizer, { skip_prompt: true, skip_special_tokens: false,
           token_callback_function: tokens => {
@@ -99,24 +103,45 @@ export function createInference(notify) {
           },
           callback_function: delta => {
             raw += delta;
+            // The prompt already ends in <think>\n. Generated text starts
+            // inside reasoning, so looking only for an opening tag is wrong.
+            const parts = splitThinking(raw, { thinkingPrefilled: true });
+            const nextThought = parts.complete ? parts.thinking : parts.thinking.slice(0, Math.max(0, parts.thinking.length - 8));
+            if (nextThought.length > thought.length) {
+              if (!thinkingStarted) {
+                message.content = [{ type: 'thinking', thinking: '' }];
+                stream.push({ type: 'thinking_start', contentIndex: 0, partial: structuredClone(message) });
+                thinkingStarted = true; textIndex = 1;
+              }
+              message.content[0].thinking = nextThought;
+              stream.push({ type: 'thinking_delta', contentIndex: 0, delta: nextThought.slice(thought.length), partial: structuredClone(message) });
+              thought = nextThought;
+            }
+            if (!parts.complete) return;
+            if (thinkingStarted && !thinkingEnded) {
+              stream.push({ type: 'thinking_end', contentIndex: 0, content: thought, partial: structuredClone(message) });
+              thinkingEnded = true;
+            }
             // Hold possible tags until completion. Tool XML is shown by tool events.
-            const safe = raw.split('<')[0];
+            const safe = parts.answer.split('<')[0];
             if (safe.length <= visible.length) return;
-            if (!started) { message.content = [{ type: 'text', text: '' }]; stream.push({ type: 'text_start', contentIndex: 0, partial: structuredClone(message) }); started = true; }
-            message.content[0].text = safe;
-            stream.push({ type: 'text_delta', contentIndex: 0, delta: safe.slice(visible.length), partial: structuredClone(message) });
+            if (!started) { message.content.push({ type: 'text', text: '' }); stream.push({ type: 'text_start', contentIndex: textIndex, partial: structuredClone(message) }); started = true; }
+            message.content[textIndex].text = safe;
+            stream.push({ type: 'text_delta', contentIndex: textIndex, delta: safe.slice(visible.length), partial: structuredClone(message) });
             visible = safe;
           },
         });
-        const output = await model.generate({ ...inputs, max_new_tokens: maxTokens, do_sample: false, top_k: 0,
+        const output = await model.generate({ ...inputs, max_new_tokens: maxTokens,
+          do_sample: true, temperature: 1.0, top_p: 0.95, top_k: 0, repetition_penalty: 1.0,
+          logits_processor: [nucleusProcessor(0.95)],
           eos_token_id: [1, 130073], streamer, stopping_criteria: stopping });
         const ids = output.tolist()[0].slice(inputs.input_ids.dims[1]).map(Number);
         message.usage.output = ids.length; message.usage.totalTokens = message.usage.input + ids.length;
         publishUsage(true);
         options.signal?.throwIfAborted();
         raw = tokenizer.decode(ids, { skip_special_tokens: false });
-        const content = parseCompletion(raw, tools);
-        if (started) stream.push({ type: 'text_end', contentIndex: 0, content: visible, partial: structuredClone(message) });
+        const content = parseCompletion(raw, tools, { thinkingPrefilled: true });
+        if (started) stream.push({ type: 'text_end', contentIndex: textIndex, content: visible, partial: structuredClone(message) });
         message.content = content;
         const hasTools = content.some(c => c.type === 'toolCall');
         // Never execute even a complete prefix of a truncated tool response.
@@ -128,7 +153,8 @@ export function createInference(notify) {
           stream.push({ type: 'toolcall_start', contentIndex: index, partial: structuredClone(message) });
           stream.push({ type: 'toolcall_end', contentIndex: index, toolCall: block, partial: structuredClone(message) });
         }
-        notify({ type: 'generation', raw, inputTokens: message.usage.input, outputTokens: ids.length,
+        notify({ type: 'generation', raw, thinking: true, sampling: { temperature: 1, topP: 0.95, topK: 0, minP: 0, repetitionPenalty: 1 },
+          inputTokens: message.usage.input, outputTokens: ids.length,
           elapsedMs: performance.now() - start, firstTokenMs, stopReason: message.stopReason });
         stream.push({ type: 'done', reason: message.stopReason, message }); stream.end(message);
       } catch (error) {

app/src/pi/terminal-ui.mjs

@@ -118,7 +118,7 @@ export function createTerminalUI(element, actions) {
       const key = message.role + ':' + message.timestamp + ':' + i; liveKeys.add(key);
       let cached = components.get(key);
       if (!cached) {
-        cached = { component: message.role === 'user' ? new UserMessageComponent(terminalText(textContent(message.content))) : new AssistantMessageComponent() };
+        cached = { component: message.role === 'user' ? new UserMessageComponent(terminalText(textContent(message.content))) : new AssistantMessageComponent(undefined, true) };
         components.set(key, cached);
       }
       if (message.role === 'user') remember(textContent(message.content));
@@ -126,6 +126,7 @@ export function createTerminalUI(element, actions) {
         const clean = { ...message, content: message.content.map(block => block.type === 'text' ? { ...block, text: terminalText(block.text) } :
           block.type === 'thinking' ? { ...block, thinking: terminalText(block.thinking) } : block),
         errorMessage: message.errorMessage ? terminalText(message.errorMessage) : undefined };
+        cached.component.setHiddenThinkingLabel(message.stopReason ? 'Thoughts · click to expand' : 'Thinking…');
         cached.component.updateContent(clean, !message.stopReason);
       }
       // Pi's assistant and tool components start with a separator. Apply the

app/src/protocol.mjs

@@ -4,11 +4,16 @@ export const textContent = content => typeof content === 'string' ? content :
   (content ?? []).filter(c => c.type === 'text').map(c => c.text).join('\n');
 
 export function toMiniMessages(context) {
-  return [{ role: 'system', content: context.systemPrompt }, ...context.messages.map(m => {
+  const messages = context.messages.filter(m => m.role !== 'assistant' || !['error', 'aborted'].includes(m.stopReason));
+  return [{ role: 'system', content: context.systemPrompt }, ...messages.map(m => {
     if (m.role === 'toolResult') return { role: 'tool', content: JSON.stringify({
       name: m.toolName, isError: m.isError, output: textContent(m.content),
     }) };
-    if (m.role === 'assistant') return { role: 'assistant', content: textContent(m.content),
+    if (m.role === 'assistant') return { role: 'assistant',
+      // Explicit even when empty: the upstream template otherwise mistakes
+      // literal </think> inside code or tool arguments for a reasoning boundary.
+      reasoning_content: m.content.filter(c => c.type === 'thinking').map(c => c.thinking).join('\n'),
+      content: m.content.map(c => c.type === 'text' ? c.text : c.type === 'toolCall' ? '<tool_sep>' : '').join(''),
       tool_calls: m.content.filter(c => c.type === 'toolCall').map(c => ({
         type: 'function', function: { name: c.name, arguments: c.arguments },
       })) };
@@ -55,12 +60,21 @@ function nextFunction(raw, start) {
   return -1;
 }
 
-export function parseCompletion(raw, tools) {
+export function splitThinking(raw, { thinkingPrefilled = false } = {}) {
+  const opening = /^\s*<think>\n?/.exec(raw);
+  if (!thinkingPrefilled && !opening) return { thinking: '', answer: raw, complete: true };
+  const start = opening?.[0].length ?? 0;
+  const end = raw.indexOf('</think>', start);
+  if (end < 0) return { thinking: raw.slice(start), answer: '', complete: false };
+  return { thinking: raw.slice(start, end), answer: raw.slice(end + 8), complete: true };
+}
+
+export function parseCompletion(raw, tools, options) {
   raw = raw.replace(/<\|im_end\|>$|<\/s>$/, '');
-  // Non-thinking generation can still emit a thinking block. Never execute it.
-  raw = raw.replace(/<think>[\s\S]*?<\/think>/g, '');
-  if (raw.includes('<think>')) throw Error('The model stopped inside a thinking block.');
-  const blocks = [];
+  const reasoning = splitThinking(raw, options);
+  if (!reasoning.complete) throw Error('The model used its response budget before finishing its thoughts. Try a smaller task.');
+  raw = reasoning.answer;
+  const blocks = reasoning.thinking.trim() ? [{ type: 'thinking', thinking: reasoning.thinking.trim() }] : [];
   let at = 0;
   while (at < raw.length) {
     const start = nextFunction(raw, at);
@@ -98,7 +112,7 @@ export function fitContext(context, tokenize, maxPromptTokens) {
     const inputs = tokenize(toMiniMessages({ ...context, messages }));
     if (inputs.input_ids.dims[1] <= maxPromptTokens) return { inputs, dropped };
     const nextUser = messages.findIndex((m, i) => i > 0 && m.role === 'user');
-    if (nextUser < 0) throw Error('This task exceeds the 4,096-token browser context. Start a new chat or use smaller files and shorter tool output.');
+    if (nextUser < 0) throw Error('This task exceeds the browser context budget. Start a new chat or use smaller files and shorter tool output.');
     messages.splice(0, nextUser); dropped += nextUser;
   }
 }

app/src/sampling.mjs

@@ -0,0 +1,49 @@
+// Transformers.js 4.2.0 exposes top_p but does not apply it in generate().
+// Apply nucleus filtering after its temperature/repetition processors and
+// before its normal multinomial sampler. No min-p or top-k filter is added.
+export function nucleusProcessor(topP = 0.95) {
+  if (!(topP > 0 && topP <= 1)) throw Error('topP must be in (0, 1].');
+  let sorted;
+  return (_inputIds, logits) => {
+    if (topP === 1) return logits;
+    const size = logits.dims.at(-1);
+    sorted ??= new Float32Array(size);
+    if (sorted.length !== size) sorted = new Float32Array(size);
+    for (let offset = 0; offset < logits.data.length; offset += size) {
+      const scores = logits.data.subarray(offset, offset + size);
+      let max = -Infinity;
+      for (let i = 0; i < size; i++) max = Math.max(max, scores[i]);
+      if (!Number.isFinite(max)) throw Error('The model produced invalid sampling scores.');
+      let total = 0;
+      for (let i = 0; i < size; i++) total += Math.exp(scores[i] - max);
+      const tailMass = (1 - topP) * total;
+      // Most vocabulary entries have negligible mass. Exclude a tail only
+      // after measuring its entire mass; this is exact, not a top-k shortcut.
+      let floor = max - 8, count, mass;
+      do {
+        count = 0; mass = 0;
+        for (let i = 0; i < size; i++) {
+          if (scores[i] >= floor) sorted[count++] = scores[i];
+          else mass += Math.exp(scores[i] - max);
+        }
+        if (mass <= tailMass) break;
+        floor -= 8;
+      } while (true);
+      sorted.subarray(0, count).sort();
+      let removed = 0;
+      // Always retain at least one token, including when logits have ties.
+      while (removed < count - 1) {
+        const next = mass + Math.exp(sorted[removed] - max);
+        if (next > tailMass) break;
+        mass = next; removed++;
+      }
+      const cutoff = removed ? sorted[removed - 1] : floor;
+      let tied = 0;
+      for (let i = removed - 1; i >= 0 && sorted[i] === cutoff; i--) tied++;
+      for (let i = 0; i < size; i++) {
+        if (scores[i] < cutoff || (scores[i] === cutoff && tied-- > 0)) scores[i] = -Infinity;
+      }
+    }
+    return logits;
+  };
+}

app/tests/context.mjs

@@ -1,6 +1,7 @@
 import {chromium} from 'playwright';
 import fs from 'node:fs/promises';
 import assert from 'node:assert/strict';
+import { CONTEXT_LIMIT } from '../src/context-usage.mjs';
 const root=new URL('../..',import.meta.url).pathname.replace(/\/$/,'');const url=process.argv[2]??'http://127.0.0.1:4173/?source=local';const label=process.argv[3]??'agent-context-usage';
 const profile=process.argv[4]??`${root}/validation/agent-browser-profile`;
 const result={date:new Date().toISOString(),url,checks:[],errors:[]};
@@ -32,7 +33,7 @@ const samples=await page.evaluate(()=>window.usageSamples);assert(samples.some(u
 result.samples=samples;result.completed=diagnostics.contextUsage;result.checks.push('Actual model/tool workflow: live token increments and final counts equal generation usage');
 for(const width of [1440,320]) {
  await page.setViewportSize({width,height:844});
- const text=`${(gen.inputTokens+gen.outputTokens).toLocaleString('en-US')}/4,096 context · ${(4096-gen.inputTokens-gen.outputTokens).toLocaleString('en-US')} free`;
+ const text=`${(gen.inputTokens+gen.outputTokens).toLocaleString('en-US')}/${CONTEXT_LIMIT.toLocaleString('en-US')} context · ${(CONTEXT_LIMIT-gen.inputTokens-gen.outputTokens).toLocaleString('en-US')} free`;
  await page.waitForFunction(text=>window.browserPi.terminal.readScreen().includes(text),text);
  await page.screenshot({path:`${root}/validation/${label}-${width}.png`,fullPage:true});
 }

app/tests/model-probe.mjs

@@ -0,0 +1,36 @@
+// Local audit harness; no UI state or production configuration is changed.
+import { AutoTokenizer, AutoModelForCausalLM, env, random } from '@huggingface/transformers';
+import { prepareModelCache } from '../src/download.mjs';
+import { nucleusProcessor } from '../src/sampling.mjs';
+let tokenizer, model;
+export async function loadProbe({ name = 'minicpm5-webgpu', limit128 = false } = {}) {
+  if (!['127.0.0.1', 'localhost'].includes(location.hostname)) throw Error('Local audit only.');
+  if (!['minicpm5-webgpu', 'minicpm5-head-fp16'].includes(name)) throw Error('Unknown audit model.');
+  if (limit128) {
+    const requestDevice = GPUAdapter.prototype.requestDevice;
+    GPUAdapter.prototype.requestDevice = function (descriptor = {}) {
+      return requestDevice.call(this, { ...descriptor, requiredLimits: { ...descriptor.requiredLimits,
+        maxStorageBufferBindingSize: 128 * 1024 ** 2, maxBufferSize: 256 * 1024 ** 2 } });
+    };
+  }
+  env.allowLocalModels = false; env.allowRemoteModels = true;
+  env.remoteHost = location.origin + '/'; env.remotePathTemplate = 'models/{model}/';
+  if (name === 'minicpm5-webgpu') env.customCache = await prepareModelCache(location.origin + '/models/minicpm5-webgpu/', {signal: new AbortController().signal});
+  env.useCustomCache = name === 'minicpm5-webgpu'; env.useBrowserCache = false;
+  env.backends.onnx.wasm.wasmPaths = location.origin + '/runtime/'; env.backends.onnx.wasm.numThreads = 1;
+  tokenizer = await AutoTokenizer.from_pretrained(name);
+  model = await AutoModelForCausalLM.from_pretrained(name, {device:'webgpu',dtype:'q4f16'});
+  const limits = env.backends.onnx.webgpu.device.limits;
+  return {name, maxStorageBufferBindingSize:limits.maxStorageBufferBindingSize, maxBufferSize:limits.maxBufferSize};
+}
+export async function runProbe(fixture, {thinking, sample, penalty=1, seed=42, maxTokens=1024}) {
+  random.seed(seed);
+  const inputs = tokenizer.apply_chat_template(fixture.messages, {tools:fixture.tools, enable_thinking:thinking, add_generation_prompt:true, return_dict:true});
+  const started = performance.now();
+  const output = await model.generate({...inputs,max_new_tokens:maxTokens,do_sample:sample,temperature:1,top_k:0,top_p:.95,
+    repetition_penalty:penalty,logits_processor:sample?[nucleusProcessor(.95)]:[],eos_token_id:[1,130073]});
+  const ids=output.tolist()[0].slice(inputs.input_ids.dims[1]).map(Number);
+  return {case:fixture.name,thinking,sample,penalty,seed,input_tokens:inputs.input_ids.dims[1],output_tokens:ids.length,
+    elapsed_s:(performance.now()-started)/1000,ended:[1,130073].includes(ids.at(-1)),raw:tokenizer.decode(ids,{skip_special_tokens:false}),ids};
+}
+export async function disposeProbe(){await model?.dispose();}

app/tests/protocol.test.mjs

@@ -1,6 +1,6 @@
 import test from 'node:test';
 import assert from 'node:assert/strict';
-import { parseCompletion, toMiniMessages, fitContext } from '../src/protocol.mjs';
+import { parseCompletion, splitThinking, toMiniMessages, fitContext } from '../src/protocol.mjs';
 import { createWorkspace } from '../src/workspace.mjs';
 import { renderMarkdown } from '../src/markdown.mjs';
 const { tools } = createWorkspace();
@@ -38,7 +38,8 @@ test('incomplete, unknown, nested, duplicate and malformed calls cannot execute'
 });
 test('thinking never becomes executable and tool history is serialized with names', () => {
   const blocks = parseCompletion('<think><function name="bash"><param name="command">rm -r /</param></function></think>Done<|im_end|>', tools);
-  assert.deepEqual(blocks, [{ type: 'text', text: 'Done' }]);
+  assert.equal(blocks[0].type, 'thinking');
+  assert.deepEqual(blocks.slice(1), [{ type: 'text', text: 'Done' }]);
   const messages = toMiniMessages({ systemPrompt: 'Pi', messages: [
     { role: 'assistant', content: [{ type: 'toolCall', name: 'read', arguments: { path: 'x' } }] },
     { role: 'toolResult', toolName: 'read', content: [{ type: 'text', text: 'abc' }], isError: false },
@@ -46,6 +47,38 @@ test('thinking never becomes executable and tool history is serialized with name
   assert.equal(messages[1].tool_calls[0].function.arguments.path, 'x');
   assert.deepEqual(JSON.parse(messages[2].content), { name: 'read', isError: false, output: 'abc' });
 });
+test('prefilled thinking is separated, retained across user turns, and never executed', () => {
+  const reasoning = '<function name="bash"><param name="command">rm -r /</param></function>';
+  const content = parseCompletion(reasoning + '\n</think>\n\nDone<|im_end|>', tools, { thinkingPrefilled: true });
+  assert.deepEqual(content, [{ type: 'thinking', thinking: reasoning }, { type: 'text', text: 'Done' }]);
+  assert.throws(() => parseCompletion(reasoning, tools, { thinkingPrefilled: true }), /before finishing/);
+  assert.equal(splitThinking('Let me inspect</thi', { thinkingPrefilled: true }).complete, false);
+  const messages = toMiniMessages({ systemPrompt: 'Pi', messages: [
+    { role: 'user', content: 'old' }, { role: 'assistant', content }, { role: 'user', content: 'new' },
+  ] });
+  assert.equal(messages[2].reasoning_content, reasoning);
+  assert.equal(messages[2].content, 'Done');
+  assert.equal(messages[2].tool_calls.length, 0);
+});
+test('literal thinking tags in code and tool data are preserved', () => {
+  const literal = '<think>example</think>';
+  const raw = 'Ready\n</think>\n<function name="write"><param name="path">x</param><param name="content"><![CDATA[' + literal + ']]></param></function>';
+  const blocks = parseCompletion(raw, tools, { thinkingPrefilled: true });
+  assert.equal(blocks[1].arguments.content, literal);
+  assert.deepEqual(parseCompletion('```html\n' + literal + '\n```', tools), [{ type: 'text', text: '```html\n' + literal + '\n```' }]);
+});
+test('assistant history keeps text/tool order and excludes interrupted thoughts', () => {
+  const content = [{ type: 'thinking', thinking: 'Inspect both.' }, { type: 'text', text: 'First.\n' },
+    { type: 'toolCall', name: 'read', arguments: { path: 'a' } }, { type: 'text', text: '\nSecond.\n' },
+    { type: 'toolCall', name: 'read', arguments: { path: 'b' } }];
+  const messages = toMiniMessages({ systemPrompt: 'Pi', messages: [
+    { role: 'assistant', content }, { role: 'assistant', content, stopReason: 'aborted' },
+    { role: 'assistant', content, stopReason: 'error' },
+  ] });
+  assert.equal(messages.length, 2);
+  assert.equal(messages[1].content, 'First.\n<tool_sep>\nSecond.\n<tool_sep>');
+  assert.deepEqual(messages[1].tool_calls.map(c => c.function.arguments.path), ['a', 'b']);
+});
 test('context trimming drops complete older user turns and rejects oversized current turn', () => {
   const context = { systemPrompt: '', messages: [
     { role: 'user', content: 'old' }, { role: 'assistant', content: [] },

app/tests/render.mjs

@@ -66,6 +66,22 @@ try {
   assert.equal(cells[u1 + 1][3].bg, 0x343541, 'Pi user bottom padded row');
   result.checks.push('Upstream Pi user/assistant indentation, inner padding and turn separators');
 
+  await fixture([user('Think about a task'), assistant('', { content: [
+    { type: 'thinking', thinking: 'THOUGHT_DETAIL_MARKER' }, { type: 'text', text: 'FINAL_ANSWER_MARKER' },
+  ] })]);
+  await waitScreen('Thoughts · click to expand');
+  assert(!(await screen()).includes('THOUGHT_DETAIL_MARKER'));
+  const thinkingPosition = await page.evaluate(() => {
+    const t = window.browserPi.terminal;
+    const row = t.readScreen().split('\n').findIndex(line => line.includes('Thoughts · click to expand'));
+    const r = document.querySelector('.xterm-screen').getBoundingClientRect();
+    return { x: r.x + 8 * r.width / t.cols, y: r.y + (row + .5) * r.height / t.rows };
+  });
+  await page.mouse.click(thinkingPosition.x, thinkingPosition.y);
+  await waitScreen('THOUGHT_DETAIL_MARKER');
+  assert((await screen()).includes('FINAL_ANSWER_MARKER'));
+  result.checks.push('Reasoning is collapsed by default and expands through Pi’s native click target');
+
   await fixture([user('Read todo'), ...tool('read', { path: '/workspace/todo' }, '# todo\n\n'), assistant('Verified.')]);
   await waitScreen('Verified.');
   const toolCells = await page.evaluate(() => window.browserPi.terminal.readCells());

app/tests/sampling.test.mjs

@@ -0,0 +1,37 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { nucleusProcessor } from '../src/sampling.mjs';
+
+const filter = (values, p) => {
+  const data = Float32Array.from(values);
+  nucleusProcessor(p)([], { dims: [1, data.length], data });
+  return [...data].map(Number.isFinite);
+};
+test('nucleus keeps enough probability, includes the boundary token, and retains one token', () => {
+  const scores = [.6, .25, .1, .05].map(Math.log);
+  assert.deepEqual(filter(scores, .8), [true, true, false, false]);
+  assert.deepEqual(filter(scores, .99), [true, true, true, true]);
+  assert.deepEqual(filter(scores, .01), [true, false, false, false]);
+  assert.deepEqual(filter(scores, 1), [true, true, true, true]);
+  assert.equal(filter([0, 0, 0, 0], .3).filter(Boolean).length, 2);
+  assert.equal(filter([-Infinity, -1000, 0], .95).filter(Boolean).length, 1);
+  assert.throws(() => filter([NaN, 0], .95), /invalid/);
+  assert.throws(() => nucleusProcessor(0));
+});
+test('tail optimization agrees with a full-sort reference over varied distributions', () => {
+  let seed = 42;
+  const random = () => ((seed = Math.imul(seed, 1664525) + 1013904223 >>> 0) / 2 ** 32);
+  for (const size of [2, 10, 1000, 130560]) for (const p of [.1, .5, .95, .999]) {
+    const scores = Float32Array.from({ length: size }, () => random() * 60 - 30);
+    const order = Array.from(scores, (value, i) => ({ value, i })).sort((a, b) => a.value - b.value || a.i - b.i);
+    const max = order.at(-1).value;
+    const total = order.reduce((sum, item) => sum + Math.exp(item.value - max), 0);
+    const expected = new Array(size).fill(true);
+    let cumulative = 0;
+    for (const item of order.slice(0, -1)) {
+      cumulative += Math.exp(item.value - max);
+      if (cumulative <= (1 - p) * total) expected[item.i] = false;
+    }
+    assert.deepEqual(filter(scores, p), expected, `size=${size}, p=${p}`);
+  }
+});

assets/{index-C6TF_HNT.js → index-DI1eH2cQ.js}

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 /load   load MiniCPM
@@ -139,7 +139,7 @@ Please report this to https://github.com/markedjs/marked.`,e){let e=`<p>An error
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index.html

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   <meta name="description" content="Pi, MiniCPM5 and a bash workspace, running entirely in your browser.">
   <title>Pi · Coding agent in your browser</title>
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 <body>

research/multiturn-audit/REPORT.md

@@ -0,0 +1,133 @@
+# MiniCPM5-2B: conversation, reasoning, and browser-inference audit
+
+Audit date: 14 September 2026. Target: the Pi coding-agent Space, running entirely in a browser with Transformers.js, ONNX Runtime WebGPU, and just-bash. This report distinguishes the original deployment, local corrections, and experiments. Browser tests here run on an AMD Radeon 8060S desktop; narrow viewports and restricted GPU limits do not establish physical-phone compatibility.
+
+## Finding
+
+The deployed configuration was not a faithful or comprehensively validated MiniCPM5-2B conversation setup. We forced a thinking model into no-thinking mode, discarded any reasoning it emitted, used greedy decoding, and allowed only 768 generated tokens within a 4,096-token context. The basic tool smoke tests passed, but they did not test the failure shown in the screenshot or establish general coding-agent quality.
+
+The audit reproduced the vague identity response and unsuccessful Tailwind follow-ups locally. Correcting the adapter improves its fidelity to the model's interface, but does **not** solve the 4-bit model's coding reliability. The original BF16 weights completed the investigated HTML/CDN/button workflow; the 4-bit export, even with corrected settings, still produced missing styles and long, inconclusive reasoning. These are measured examples, not a population-level accuracy score.
+
+## Model identity and architecture
+
+The checkpoint is a dense, text-only `LlamaForCausalLM`. It has 42 decoder layers, width 2,048, MLP intermediate width 6,144, SiLU activations, 16 query heads, two key/value heads, and head dimension 128. It uses RMSNorm with epsilon 1e-6 and RoPE with theta 5,000,000, without configured RoPE scaling. Its 130,560-entry input embedding and output projection are separate. The source is BF16; its configured position limit is 131,072. These values come from the checkpoint configuration, not another MiniCPM release.[^config]
+
+Counting the actual tensors gives 2,516,756,480 parameters, of which 1,981,982,720 exclude the input embedding and output projection. “2B” is the model name, not its exact total parameter count. The conversion preserves the separate output projection and GQA layout. MiniCPM-SALA and MiniCPM4 architectural claims should not be transferred to this checkpoint.
+
+The model card describes staged training including reasoning and agent-related post-training. That explains the intended use, but benchmark results obtained with the original model and its evaluation harness do not certify a 4-bit, short-context browser agent. The linked paper issue is another reason to prefer the actual checkpoint and current deployment documentation for model-specific details.[^card][^paper]
+
+The current upstream revision inspected was `12a3808a956f869c767195e9266b59c4d21d92e2`. Our original source snapshot was `abe115e887989b14f05e64a3b260648329324c3f`. Every locally downloaded model/tokenizer/config file matches the current upstream artifact, including the 5,033,557,096-byte weights file with SHA-256 `14fb8e7f0a18d53d1f239773758bf581cee7e456a4523a54622c3a245b64402c`. The observed issue is not explained by an upstream replacement of the weights or tokenizer. See [source verification](source-verification.json).
+
+## Thinking mode and conversation history
+
+OpenBMB's Transformers deployment table labels thinking as the only supported mode for **MiniCPM5-2B**. Its no-thinking row belongs to **MiniCPM5-1B**. The relevant 2B guidance was present in the September 3 documentation update; this was a mistake in our integration, not a requirement that appeared after deployment. The recommended 2B sampling values are temperature 1.0 and top-p 0.95.[^transformers]
+
+The shared chat template nevertheless accepts `enable_thinking=False`. The existence of that formatting switch does not establish that no-thinking is a supported quality profile for 2B. Some deployment examples, particularly LiteRT conversion notes, use the switch successfully on selected tasks. Those measurements describe those conversions and tasks; they do not override the model-specific guidance or validate our agent.[^litert]
+
+The official template accepts `reasoning_content`, or extracts reasoning from assistant content. If supplied, it renders that reasoning for retained assistant turns. Although it computes a last-user index, it does not use that index to drop older thinking. Enabling thinking makes the generation prompt end inside an already-open `<think>` block. Consequently, generated text can start with reasoning **without** containing an opening tag.[^template]
+
+The answer to “should thinking be resent?” is therefore qualified: preserving completed reasoning separately is compatible with this checkpoint's own format, and is the conservative fidelity choice. We found no explicit model-specific instruction requiring all older reasoning to be retained, nor evidence that retaining it is universally optimal. It consumes context and can preserve mistaken model reasoning. Rules for other model families should not be assumed here.
+
+Our old adapter always discarded Pi `thinking` blocks. The local correction maps them to `reasoning_content`, keeps text and function calls in their original order, and excludes interrupted/error assistant messages from future prompts. It parses only the answer after the reasoning boundary for executable tool calls. Reasoning is collapsed in the terminal and expandable; it is not rendered as ordinary assistant output.
+
+The parser previously removed `<think>...</think>` with a global regular expression. That could corrupt literal tags inside HTML/code or a tool argument. The correction recognizes the leading reasoning region instead. Unit tests cover a prefilled opening tag, incomplete thoughts, executable-looking XML inside thoughts, literal tags inside CDATA and code fences, and preserved history ordering.
+
+## Sampling: a configuration value was insufficient
+
+Our original production generation used `do_sample:false`, making it greedy. The checkpoint's generation file enables sampling with temperature 1.0 and top-p 0.95; the maintainer additionally recommends disabling min-p when investigating loops.[^generation][^loop9]
+
+Inspection of the **installed Transformers.js 4.2.0 implementation** found that top-p is exposed in its configuration but not added to the generation processors. Its implementation contains an explicit TODO for the top-p warper. The package source matches the corresponding release source at commit `54652ba3366ccd1e3b64e689a96504309e6fb53b`.[^js]
+
+The local adapter therefore adds a nucleus-filtering processor before Transformers.js's existing multinomial sampler. It applies the actual probability cutoff, including the boundary token and at least one surviving token. It measures the mass of low-probability tokens before excluding them from the sort; it does not substitute an arbitrary top-k filter. Tests compare the optimized filter against a full-sort probability reference across distributions up to the model's entire vocabulary, and explicitly test ties and non-finite inputs.
+
+The tested local profile uses temperature 1, top-p .95, top-k 0, no min-p filter, and repetition penalty 1. We did not blindly increase repetition penalty: in one controlled q4 follow-up probe, 1.05 increased the response from 51 tokens with a completed tool request to an unfinished 1,024-token thought. Other users report benefits from higher penalties in GGUF coding evaluations, but those are different quantizers, runtimes, and tasks.[^issue374]
+
+## What the local experiments establish
+
+### Original deployment reproduction
+
+[Baseline results](baseline.json) contain actual browser model generations, Pi tool calls, tool results, and resulting HTML. The model was loaded from the same verified local export used by the Space.
+
+* “Who are you?” and “What model are you?” produced the same vague request for clarification.
+* An HTML creation request invoked actual tools successfully.
+* Adding Tailwind linked a local CSS file that did not exist, or merely added utility-class names and an empty/irrelevant style block.
+* The short follow-up “cdn” asked another question or repeated searches until the 12-turn guard stopped the agent.
+
+Thus the screenshot was not adequately explained by a display issue or by tools being unavailable. File tools did run; the model's decisions and edits were wrong.
+
+### Same input IDs, BF16 versus q4
+
+[Prompt fixtures](prompt-fixtures.json), [BF16 results](bf16-results.json), and [q4 results](q4-results.json) compare two contexts: the original identity prompt and a recorded HTML/CDN follow-up. Python and JavaScript produce exactly matching rendered prompts and token IDs for all four thinking/no-thinking fixtures. BF16 receives the JavaScript IDs directly.
+
+| Context and decoding | Original BF16 | Browser q4f16 |
+|---|---|---|
+| Identity, no-thinking/greedy | Identified as Pi, but invented an organization and denied file access | Vague clarification response |
+| Identity, thinking/greedy | Identified as Pi and described coding assistance | Unnecessary workspace inspection |
+| Identity, thinking/sampling | Still invented identity details with the old underspecified system prompt | Described coding help but misstated where virtual files live |
+| CDN follow-up, thinking/greedy | Read the HTML; 173 generated tokens | Read the HTML; 611 generated tokens |
+| CDN follow-up, thinking/sampling | Read the HTML; 268 generated tokens | Requested a shell inspection; 51 generated tokens |
+| CDN follow-up, q4 sampling with repetition 1.05 | Not tested in this cell | No completed answer within 1,024 tokens |
+
+The greedy comparisons isolate differences under identical input IDs. Sampled runs do **not** use the same random stream across PyTorch and JavaScript merely because both are seeded with 42. These examples must not be interpreted as a statistically controlled model-quality benchmark.
+
+The system prompt now explicitly names MiniCPM5-2B/OpenBMB, distinguishes the virtual filesystem from operating-system files, and clarifies that the shell's lack of networking does not prevent writing HTML with external asset URLs. No Tailwind URL or scripted identity answer is hardcoded into the agent.
+
+### Corrected q4 agent versus original BF16 agent
+
+The [corrected browser run](corrected-first-pass.json) repeats both baseline scenarios with thinking, real nucleus sampling, preserved reasoning, the clarified system prompt, and a larger budget. Identity replies improved, but one longer conversation still linked missing CSS, spent 1,685 tokens on the “cdn” reply without changing the file, and exhausted 2,048 tokens on a subsequent button edit. The second scenario added class names without loading Tailwind. These failures remain part of the results; they were not discarded to select a favorable run.
+
+The [BF16 agent reference](bf16-agent-results.json) uses the same Pi agent core, just-bash tools, corrected prompt formatting, and context/output limits. A local stdin subprocess runs PyTorch inference; it is an experiment, not a backend added to the app. It inserted the real `https://cdn.tailwindcss.com` script, recognized the “cdn” follow-up, and added blue-button classes. Its files and tool results are recorded. That legacy Play CDN endpoint is distinct from the current Tailwind documentation's browser-package script.[^tailwind]
+
+The resulting BF16 HTML was also [rendered in Chromium](bf16-html-render.json), with the external script loaded: the button's computed background was `rgb(59, 130, 246)` and its text was white. This checks the resulting styling, beyond merely finding the string “tailwind” in a file.
+
+Together with the numerical conversion checks, this is evidence that the q4 profile contributes meaningful degradation on this workload. It does not prove that every failure is caused by quantization, or that BF16 is reliable on all tasks. BF16 also hallucinated identity details with the old system prompt. Some browser and BF16 experiments briefly overlapped on the GPU, so their whole-agent elapsed times are not a fair runtime-speed comparison.
+
+## Conversion verification versus quality preservation
+
+The existing export quantizes matrix weights with symmetric 4-bit blocks of 32 values, using the ONNX Runtime GenAI builder. The browser uses FP16 activations and KV cache; input embeddings remain FP16 and are split losslessly for binding limits. The output projection is quantized. The exported graph prunes the output head to the last sequence position and uses fused GQA.
+
+The earlier [numerical validation](../../validation/onnx-validation.json) covered six short prompts and 41 compared positions, mostly early decoding, using no-thinking prompts. FP16 ONNX versus BF16 had mean KL divergence 0.000279 and 97.56% greedy-token agreement. The q4 export had mean KL 0.125916 and 87.80% greedy-token agreement. Packaging changed no logits in the corresponding CPU comparison. Browser versus native q4 agreed on the greedy token at all 41 positions, with nonzero numerical differences ([WebGPU check](../../validation/webgpu-parity.json)).
+
+These are conversion and runtime checks, **not** “87.8% accuracy,” a reasoning benchmark, or evidence that q4 is close to full precision for long agent trajectories. Passing checksums establishes which bytes are running; it does not establish their behavioral quality. The old smoke-test scope was insufficient for the claim the user was asking about.
+
+Independent LiteRT conversion measurements and GGUF issue reports also describe quantization-sensitive reasoning length and looping. Their results motivate testing a better quantizer or higher precision; they cannot be transferred as accuracy figures for this ONNX export.[^litert][^issue374][^loop13]
+
+## Browser context and performance
+
+Each model call currently tokenizes the retained history and prefills it again. The model has KV caching **within** a generation, but the adapter does not reuse a prefix cache between user messages or tool-result calls. Consequently, multi-turn correctness and multi-turn latency are separate problems: the model can receive the correct history while repeatedly paying prefill cost.
+
+The local corrected profile uses 8,192 total tokens and reserves up to 2,048 for reasoning plus answer/tool XML. This is a browser tradeoff, not the native 128K capacity. It retains complete user turns when trimming history so a tool result is not separated from its call. An oversized current turn produces an explicit error, and the UI reports when older turns are excluded. The context counter includes generated reasoning and retained prompt tokens.
+
+From the checkpoint dimensions, FP16 KV payload is 42 KiB per token: 42 layers × K/V × two KV heads × 128 values × two bytes. That is 168 MiB at 4,096 tokens and 336 MiB at 8,192, before weights, temporary tensors, duplicated cache buffers, browser allocations, and other overhead. It is not a total-memory estimate. Physical mobile devices remain untested.
+
+Cross-call KV reuse is a future optimization only after a quality profile is selected. A correct implementation must compare the exact token prefix, invalidate on changed system/tools/history, handle trimming and cancellation, and preserve cache positions. Blindly retaining the previous cache while rebuilding a different prompt would be a correctness bug.
+
+## Validation and release decision
+
+The [thinking-history ablation](history-and-context-results.json) holds the recorded answers/tool results, next user message, and JavaScript seed constant. Retaining thoughts used 5,820 input tokens and produced an 839-token clarification instead of an edit. Removing thoughts reduced input to 3,310 tokens but exhausted the 1,024-token reply cap without an answer. Neither solved the request. This is evidence against presenting “just remove thinking” as a demonstrated fix; it is not proof that all history should always include reasoning.
+
+The same browser session successfully generated after prompts of 6,119 and 8,149 tokens with actual GPU limits of 128 MiB per storage binding and 256 MiB per buffer. This validates the tested desktop allocation path beyond the app's 6,144-token prompt allowance. It does not measure phone memory pressure, battery use, or sustained thermals.
+
+A [mixed-head experiment](mixed-head-results.json) retained the decoder's existing q4 weights but replaced the output projection with four FP16 matrix slices from the original checkpoint. It loaded and generated with the restricted GPU limits. Four probes showed no consistent improvement: both identity probes made unnecessary tool calls; the sampled CDN probe read the file, while greedy decoding reverted to searching for local CSS. The larger graph is **not selected for publication**. The experiment does not evaluate calibrated quantization of the decoder.
+
+The source changes are interface corrections, not a replacement conversion or a claim that the screenshot's workload is now reliable. The next model-quality step should compare a calibrated 4-bit recipe and higher precision on held-out conversations, with tool success, actual file contents, reasoning completion rate, latency, and memory scored together. ONNX Runtime documents alternative weight-only quantization methods and layer/activation comparisons for investigating degradation.[^ortquant] Until that evaluation passes, this remains an experimental q4 agent.
+
+The corrected production build passed 13 unit tests, a [ten-turn real-model file/tool regression](../../validation/agent-thinking-conversation.json), [live token counting, first-message loading, cancellation and persistence checks](../../validation/agent-thinking-context.json), and [eight presentation checks across seven viewport sizes](../../validation/agent-thinking-render.json), including native click-to-expand reasoning. [Retained-history template parity](retained-template-parity.json) additionally matches Python and JavaScript on the longer actual conversation, both with and without past thoughts. These narrower successes do not erase the recorded Tailwind failures.
+
+The release contains the corrected adapter, sampler, UI reasoning handling, context budget, and documentation. It keeps the existing pinned model weights. It does not promote the experimental FP16-head graph or describe the q4 model as matching full precision.
+
+## Sources
+
+[^config]: [Checkpoint configuration](https://huggingface.co/openbmb/MiniCPM5-2B/blob/main/config.json), also downloaded under `sources/config.json` and verified against the pinned source.
+[^card]: [Official MiniCPM5-2B model card](https://huggingface.co/openbmb/MiniCPM5-2B), retrieved September 14, 2026.
+[^paper]: [Model-repository discussion identifying the technical-report link mismatch](https://huggingface.co/openbmb/MiniCPM5-2B/discussions/3). This is a report about a link, not a MiniCPM5 architecture specification.
+[^transformers]: [OpenBMB Transformers deployment guide, September 3 revision](https://github.com/OpenBMB/MiniCPM/blob/dbb8debeb2dc48a3684753c1526259f8536dda5f/docs/deployment/transformers.md).
+[^template]: [Official chat template](https://huggingface.co/openbmb/MiniCPM5-2B/blob/main/chat_template.jinja), byte-identical to the source snapshot in this audit. Our packaging's existing Jinja scope, duplicate-tool-call, JSON-value and CDATA fixes are separately documented in the repository.
+[^generation]: [Official generation configuration](https://huggingface.co/openbmb/MiniCPM5-2B/blob/main/generation_config.json).
+[^js]: [Transformers.js 4.2.0 generation implementation](https://github.com/huggingface/transformers.js/blob/54652ba3366ccd1e3b64e689a96504309e6fb53b/packages/transformers/src/models/modeling_utils.js#L529). The release tag and source were independently fetched during this audit.
+[^loop9]: [Maintainer response to a looping report](https://huggingface.co/openbmb/MiniCPM5-2B/discussions/9): recommends temperature 1, top-p .95, min-p 0 for the reported llama.cpp setup.
+[^loop13]: [Another model-repository loop report and maintainer response](https://huggingface.co/openbmb/MiniCPM5-2B/discussions/13). Its Q8 GGUF narrative task is not an ONNX coding-agent evaluation.
+[^issue374]: [Firsthand GGUF coding/looping evaluation, OpenBMB issue 374](https://github.com/OpenBMB/MiniCPM/issues/374). The task includes repair turns; quantizers, runtime and scoring differ from this audit.
+[^litert]: [OpenBMB LiteRT deployment notes](https://github.com/OpenBMB/MiniCPM/blob/main/docs/deployment/litert.md), reporting measurements from the linked LiteRT conversion project. These document a different quantization/runtime stack.
+[^tailwind]: [Tailwind Play CDN documentation](https://tailwindcss.com/docs/installation/play-cdn), showing the current `@tailwindcss/browser@4` script and its development-use purpose.
+[^ortquant]: [ONNX Runtime quantization and quantization-debugging documentation](https://onnxruntime.ai/docs/performance/model-optimizations/quantization.html).

research/multiturn-audit/bf16-agent-results.json

@@ -0,0 +1,1621 @@
+{
+  "precision": "BF16",
+  "sampling": "temperature1 top_p.95 top_k0 min_p0 repetition1; PyTorch seeds42+generation",
+  "turns": [
+    {
+      "prompt": "who are you?",
+      "elapsedMs": 13056,
+      "messages": [
+        {
+          "role": "user",
+          "content": [
+            {
+              "type": "text",
+              "text": "who are you?"
+            }
+          ],
+          "timestamp": 1789375586233
+        },
+        {
+          "role": "assistant",
+          "api": "reference",
+          "provider": "local-bf16",
+          "model": "MiniCPM5-2B-bf16",
+          "timestamp": 1789375599289,
+          "content": [
+            {
+              "type": "thinking",
+              "thinking": "The user is asking who I am. I should provide a clear and concise answer based on my identity as a MiniCPM model."
+            },
+            {
+              "type": "text",
+              "text": "I am MiniCPM, a model from the MiniCPM series, developed by ModelBest Inc. and the OpenBMB open-source community. For more details, please visit https://github.com/OpenBMB/."
+            }
+          ],
+          "stopReason": "stop",
+          "usage": {
+            "input": 820,
+            "output": 75,
+            "totalTokens": 895,
+            "cacheRead": 0,
+            "cacheWrite": 0,
+            "cost": {
+              "input": 0,
+              "output": 0,
+              "total": 0,
+              "cacheRead": 0,
+              "cacheWrite": 0
+            }
+          }
+        }
+      ],
+      "html": "<!doctype html><html><head><title>Hello</title></head><body><h1>Hello</h1><button>Click me</button></body></html>"
+    },
+    {
+      "prompt": "add tailwindcss to the html file",
+      "elapsedMs": 41255,
+      "messages": [
+        {
+          "role": "user",
+          "content": [
+            {
+              "type": "text",
+              "text": "add tailwindcss to the html file"
+            }
+          ],
+          "timestamp": 1789375599291
+        },
+        {
+          "role": "assistant",
+          "api": "reference",
+          "provider": "local-bf16",
+          "model": "MiniCPM5-2B-bf16",
+          "timestamp": 1789375602331,
+          "content": [
+            {
+              "type": "thinking",
+              "thinking": "The user wants to add Tailwind CSS to an HTML file. Let me first check the workspace to understand what files are present."
+            },
+            {
+              "type": "toolCall",
+              "id": "e7fab74b-9b0c-4a1c-863e-875fb23316e6",
+              "name": "bash",
+              "arguments": {
+                "command": "ls -la"
+              }
+            }
+          ],
+          "stopReason": "toolUse",
+          "usage": {
+            "input": 914,
+            "output": 44,
+            "totalTokens": 958,
+            "cacheRead": 0,
+            "cacheWrite": 0,
+            "cost": {
+              "input": 0,
+              "output": 0,
+              "total": 0,
+              "cacheRead": 0,
+              "cacheWrite": 0
+            }
+          }
+        },
+        {
+          "role": "toolResult",
+          "toolCallId": "e7fab74b-9b0c-4a1c-863e-875fb23316e6",
+          "toolName": "bash",
+          "content": [
+            {
+              "type": "text",
+              "text": "total 5\ndrwxr-xr-x 1 user user     0 Jan  1 00:00 .\ndrwxr-xr-x 1 user user     0 Jan  1 00:00 ..\n-rw-r--r-- 1 user user   135 Sep 14 10:46 README.md\n-rw-r--r-- 1 user user   113 Sep 14 10:46 index.html\n-rw-r--r-- 1 user user    57 Sep 14 10:46 sales.csv\n\nExit code: 0"
+            }
+          ],
+          "details": {
+            "exitCode": 0
+          },
+          "isError": false,
+          "timestamp": 1789375602348
+        },
+        {
+          "role": "assistant",
+          "api": "reference",
+          "provider": "local-bf16",
+          "model": "MiniCPM5-2B-bf16",
+          "timestamp": 1789375605866,
+          "content": [
+            {
+              "type": "thinking",
+              "thinking": "Let me read the current files to understand the context."
+            },
+            {
+              "type": "toolCall",
+              "id": "ae15ad52-1a48-45d2-975f-42bacfb0c57d",
+              "name": "read",
+              "arguments": {
+                "path": "/workspace/index.html"
+              }
+            },
+            {
+              "type": "toolCall",
+              "id": "0a79ebc8-302b-456d-82ac-c5147a2c9243",
+              "name": "read",
+              "arguments": {
+                "path": "/workspace/README.md"
+              }
+            }
+          ],
+          "stopReason": "toolUse",
+          "usage": {
+            "input": 1104,
+            "output": 48,
+            "totalTokens": 1152,
+            "cacheRead": 0,
+            "cacheWrite": 0,
+            "cost": {
+              "input": 0,
+              "output": 0,
+              "total": 0,
+              "cacheRead": 0,
+              "cacheWrite": 0
+            }
+          }
+        },
+        {
+          "role": "toolResult",
+          "toolCallId": "ae15ad52-1a48-45d2-975f-42bacfb0c57d",
+          "toolName": "read",
+          "content": [
+            {
+              "type": "text",
+              "text": "<!doctype html><html><head><title>Hello</title></head><body><h1>Hello</h1><button>Click me</button></body></html>"
+            }
+          ],
+          "details": {},
+          "isError": false,
+          "timestamp": 1789375605868
+        },
+        {
+          "role": "toolResult",
+          "toolCallId": "0a79ebc8-302b-456d-82ac-c5147a2c9243",
+          "toolName": "read",
+          "content": [
+            {
+              "type": "text",
+              "text": "# Browser workspace\n\nPi can read, write, edit, and run shell commands here.\nEverything stays in this browser. Try analyzing sales.csv.\n"
+            }
+          ],
+          "details": {},
+          "isError": false,
+          "timestamp": 1789375605868
+        },
+        {
+          "role": "assistant",
+          "api": "reference",
+          "provider": "local-bf16",
+          "model": "MiniCPM5-2B-bf16",
+          "timestamp": 1789375625157,
+          "content": [
+            {
+              "type": "thinking",
+              "thinking": "The user wants to add Tailwind CSS to the HTML file. Since Tailwind CSS is a CSS library, I need to add the appropriate script tag and CSS link to the HTML file. I'll add the Tailwind CSS script tag in the <head> section.\n\nTailwind CSS requires:\n1. A script tag linking to the Tailwind CSS bundle (typically `/tailwindcss.min.js` or similar)\n2. The CSS file itself\n\nLet me update the index.html file to add Tailwind CSS."
+            },
+            {
+              "type": "toolCall",
+              "id": "2b69f5a2-a3b7-4ee5-8984-e13fdb6fd014",
+              "name": "edit",
+              "arguments": {
+                "path": "/workspace/index.html",
+                "oldText": "<!doctype html><html><head><title>Hello</title></head><body><h1>Hello</h1><button>Click me</button></body></html>",
+                "newText": "<!doctype html><html><head>\n  <title>Hello</title>\n  <script src=\"https://cdn.tailwindcss.com\"></script>\n</head><body><h1>Hello</h1><button>Click me</button></body></html>"
+              }
+            }
+          ],
+          "stopReason": "toolUse",
+          "usage": {
+            "input": 1265,
+            "output": 245,
+            "totalTokens": 1510,
+            "cacheRead": 0,
+            "cacheWrite": 0,
+            "cost": {
+              "input": 0,
+              "output": 0,
+              "total": 0,
+              "cacheRead": 0,
+              "cacheWrite": 0
+            }
+          }
+        },
+        {
+          "role": "toolResult",
+          "toolCallId": "2b69f5a2-a3b7-4ee5-8984-e13fdb6fd014",
+          "toolName": "edit",
+          "content": [
+            {
+              "type": "text",
+              "text": "Edited /workspace/index.html"
+            }
+          ],
+          "details": {},
+          "isError": false,
+          "timestamp": 1789375625159
+        },
+        {
+          "role": "assistant",
+          "api": "reference",
+          "provider": "local-bf16",
+          "model": "MiniCPM5-2B-bf16",
+          "timestamp": 1789375628033,
+          "content": [
+            {
+              "type": "thinking",
+              "thinking": "Let me verify the file was updated correctly."
+            },
+            {
+              "type": "toolCall",
+              "id": "70ae01db-236b-45b6-b1b8-510add591f23",
+              "name": "read",
+              "arguments": {
+                "path": "/workspace/index.html"
+              }
+            }
+          ],
+          "stopReason": "toolUse",
+          "usage": {
+            "input": 1542,
+            "output": 28,
+            "totalTokens": 1570,
+            "cacheRead": 0,
+            "cacheWrite": 0,
+            "cost": {
+              "input": 0,
+              "output": 0,
+              "total": 0,
+              "cacheRead": 0,
+              "cacheWrite": 0
+            }
+          }
+        },
+        {
+          "role": "toolResult",
+          "toolCallId": "70ae01db-236b-45b6-b1b8-510add591f23",
+          "toolName": "read",
+          "content": [
+            {
+              "type": "text",
+              "text": "<!doctype html><html><head>\n  <title>Hello</title>\n  <script src=\"https://cdn.tailwindcss.com\"></script>\n</head><body><h1>Hello</h1><button>Click me</button></body></html>"
+            }
+          ],
+          "details": {},
+          "isError": false,
+          "timestamp": 1789375628034
+        },
+        {
+          "role": "assistant",
+          "api": "reference",
+          "provider": "local-bf16",
+          "model": "MiniCPM5-2B-bf16",
+          "timestamp": 1789375640545,
+          "content": [
+            {
+              "type": "thinking",
+              "thinking": "The Tailwind CSS script has been added to the HTML file. Let me verify the change is correct.\n\nThe edit was successful - the HTML file now includes the Tailwind CSS CDN script in the <head> section."
+            },
+            {
+              "type": "text",
+              "text": "Done! I've added Tailwind CSS to the HTML file by including the CDN script in the `<head>` section:\n\n```html\n<script src=\"https://cdn.tailwindcss.com\"></script>\n```\n\nThis allows you to use Tailwind CSS classes directly in your HTML. For example, you can style elements with classes like `text-red-500`, `bg-blue-100`, `rounded-lg`, etc."
+            }
+          ],
+          "stopReason": "stop",
+          "usage": {
+            "input": 1658,
+            "output": 135,
+            "totalTokens": 1793,
+            "cacheRead": 0,
+            "cacheWrite": 0,
+            "cost": {
+              "input": 0,
+              "output": 0,
+              "total": 0,
+              "cacheRead": 0,
+              "cacheWrite": 0
+            }
+          }
+        }
+      ],
+      "html": "<!doctype html><html><head>\n  <title>Hello</title>\n  <script src=\"https://cdn.tailwindcss.com\"></script>\n</head><body><h1>Hello</h1><button>Click me</button></body></html>"
+    },
+    {
+      "prompt": "cdn",
+      "elapsedMs": 19211,
+      "messages": [
+        {
+          "role": "user",
+          "content": [
+            {
+              "type": "text",
+              "text": "cdn"
+            }
+          ],
+          "timestamp": 1789375640547
+        },
+        {
+          "role": "assistant",
+          "api": "reference",
+          "provider": "local-bf16",
+          "model": "MiniCPM5-2B-bf16",
+          "timestamp": 1789375659758,
+          "content": [
+            {
+              "type": "thinking",
+              "thinking": "The user is asking about CDN. Let me think about what they might mean. They might be asking about the CDN reference I just added, or they might be asking about something else related to CDN. Since this is a follow-up, let me check if there's more context needed. The user said \"cdn\" which could be:\n1. Asking about the CDN I added\n2. Asking about CDN in general\n3. Asking about something related to CDN\n\nGiven the context, I should probably just acknowledge what CDN means in context - the CDN (Content Delivery Network) that I referenced, or perhaps they want to verify I understand what CDN means. Let me just provide a clear, concise answer."
+            },
+            {
+              "type": "text",
+              "text": "The CDN reference I added points to **https://cdn.tailwindcss.com**, which is the **Content Delivery Network** for Tailwind CSS. It's a CDN that provides the Tailwind CSS library for you to use without having to install it locally — all the CSS classes (like `text-red-500`, `bg-blue-100`, etc.) become available in your HTML directly."
+            }
+          ],
+          "stopReason": "stop",
+          "usage": {
+            "input": 1805,
+            "output": 233,
+            "totalTokens": 2038,
+            "cacheRead": 0,
+            "cacheWrite": 0,
+            "cost": {
+              "input": 0,
+              "output": 0,
+              "total": 0,
+              "cacheRead": 0,
+              "cacheWrite": 0
+            }
+          }
+        }
+      ],
+      "html": "<!doctype html><html><head>\n  <title>Hello</title>\n  <script src=\"https://cdn.tailwindcss.com\"></script>\n</head><body><h1>Hello</h1><button>Click me</button></body></html>"
+    },
+    {
+      "prompt": "Make the button blue using Tailwind classes.",
+      "elapsedMs": 25022,
+      "messages": [
+        {
+          "role": "user",
+          "content": [
+            {
+              "type": "text",
+              "text": "Make the button blue using Tailwind classes."
+            }
+          ],
+          "timestamp": 1789375659760
+        },
+        {
+          "role": "assistant",
+          "api": "reference",
+          "provider": "local-bf16",
+          "model": "MiniCPM5-2B-bf16",
+          "timestamp": 1789375674770,
+          "content": [
+            {
+              "type": "thinking",
+              "thinking": "The user wants me to make the button blue using Tailwind CSS classes. I'll update the button in the HTML file to use a blue background/outline styling."
+            },
+            {
+              "type": "toolCall",
+              "id": "dff8b742-ebf3-4389-aa26-caed2ac226d7",
+              "name": "edit",
+              "arguments": {
+                "path": "/workspace/index.html",
+                "oldText": "<h1>Hello</h1><button>Click me</button>",
+                "newText": "<h1>Hello</h1><button class=\"bg-blue-500 text-white rounded-lg\">Click me</button>"
+              }
+            }
+          ],
+          "stopReason": "toolUse",
+          "usage": {
+            "input": 2058,
+            "output": 120,
+            "totalTokens": 2178,
+            "cacheRead": 0,
+            "cacheWrite": 0,
+            "cost": {
+              "input": 0,
+              "output": 0,
+              "total": 0,
+              "cacheRead": 0,
+              "cacheWrite": 0
+            }
+          }
+        },
+        {
+          "role": "toolResult",
+          "toolCallId": "dff8b742-ebf3-4389-aa26-caed2ac226d7",
+          "toolName": "edit",
+          "content": [
+            {
+              "type": "text",
+              "text": "Edited /workspace/index.html"
+            }
+          ],
+          "details": {},
+          "isError": false,
+          "timestamp": 1789375674771
+        },
+        {
+          "role": "assistant",
+          "api": "reference",
+          "provider": "local-bf16",
+          "model": "MiniCPM5-2B-bf16",
+          "timestamp": 1789375678752,
+          "content": [
+            {
+              "type": "thinking",
+              "thinking": "Let me verify the change."
+            },
+            {
+              "type": "toolCall",
+              "id": "67c827c1-2454-4150-a6f7-4d221ae92a09",
+              "name": "read",
+              "arguments": {
+                "path": "/workspace/index.html"
+              }
+            }
+          ],
+          "stopReason": "toolUse",
+          "usage": {
+            "input": 2210,
+            "output": 25,
+            "totalTokens": 2235,
+            "cacheRead": 0,
+            "cacheWrite": 0,
+            "cost": {
+              "input": 0,
+              "output": 0,
+              "total": 0,
+              "cacheRead": 0,
+              "cacheWrite": 0
+            }
+          }
+        },
+        {
+          "role": "toolResult",
+          "toolCallId": "67c827c1-2454-4150-a6f7-4d221ae92a09",
+          "toolName": "read",
+          "content": [
+            {
+              "type": "text",
+              "text": "<!doctype html><html><head>\n  <title>Hello</title>\n  <script src=\"https://cdn.tailwindcss.com\"></script>\n</head><body><h1>Hello</h1><button class=\"bg-blue-500 text-white rounded-lg\">Click me</button></body></html>"
+            }
+          ],
+          "details": {},
+          "isError": false,
+          "timestamp": 1789375678753
+        },
+        {
+          "role": "assistant",
+          "api": "reference",
+          "provider": "local-bf16",
+          "model": "MiniCPM5-2B-bf16",
+          "timestamp": 1789375684782,
+          "content": [
+            {
+              "type": "thinking",
+              "thinking": "The button now has the Tailwind class `bg-blue-500 text-white rounded-lg` which makes it a blue button with white text and rounded corners."
+            },
+            {
+              "type": "text",
+              "text": "Done! The button now uses Tailwind classes `bg-blue-500 text-white rounded-lg` to make it a blue button with white text and rounded corners."
+            }
+          ],
+          "stopReason": "stop",
+          "usage": {
+            "input": 2333,
+            "output": 66,
+            "totalTokens": 2399,
+            "cacheRead": 0,
+            "cacheWrite": 0,
+            "cost": {
+              "input": 0,
+              "output": 0,
+              "total": 0,
+              "cacheRead": 0,
+              "cacheWrite": 0
+            }
+          }
+        }
+      ],
+      "html": "<!doctype html><html><head>\n  <title>Hello</title>\n  <script src=\"https://cdn.tailwindcss.com\"></script>\n</head><body><h1>Hello</h1><button class=\"bg-blue-500 text-white rounded-lg\">Click me</button></body></html>"
+    }
+  ],
+  "generations": [
+    {
+      "raw": "The user is asking who I am. I should provide a clear and concise answer based on my identity as a MiniCPM model.\n</think>\n\nI am MiniCPM, a model from the MiniCPM series, developed by ModelBest Inc. and the OpenBMB open-source community. For more details, please visit https://github.com/OpenBMB/.<|im_end|>",
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+      "raw": "Let me read the current files to understand the context.\n</think>\n\n<function name=\"read\"><param name=\"path\">/workspace/index.html</param></function>\n<function name=\"read\"><param name=\"path\">/workspace/README.md</param></function><|im_end|>",
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+      "raw": "Let me verify the file was updated correctly.\n</think>\n\n<function name=\"read\"><param name=\"path\">/workspace/index.html</param></function><|im_end|>",
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+      "raw": "The Tailwind CSS script has been added to the HTML file. Let me verify the change is correct.\n\nThe edit was successful - the HTML file now includes the Tailwind CSS CDN script in the <head> section.\n</think>\n\nDone! I've added Tailwind CSS to the HTML file by including the CDN script in the `<head>` section:\n\n```html\n<script src=\"https://cdn.tailwindcss.com\"></script>\n```\n\nThis allows you to use Tailwind CSS classes directly in your HTML. For example, you can style elements with classes like `text-red-500`, `bg-blue-100`, `rounded-lg`, etc.<|im_end|>",
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+      "raw": "The user is asking about CDN. Let me think about what they might mean. They might be asking about the CDN reference I just added, or they might be asking about something else related to CDN. Since this is a follow-up, let me check if there's more context needed. The user said \"cdn\" which could be:\n1. Asking about the CDN I added\n2. Asking about CDN in general\n3. Asking about something related to CDN\n\nGiven the context, I should probably just acknowledge what CDN means in context - the CDN (Content Delivery Network) that I referenced, or perhaps they want to verify I understand what CDN means. Let me just provide a clear, concise answer.\n</think>\n\nThe CDN reference I added points to **https://cdn.tailwindcss.com**, which is the **Content Delivery Network** for Tailwind CSS. It's a CDN that provides the Tailwind CSS library for you to use without having to install it locally — all the CSS classes (like `text-red-500`, `bg-blue-100`, etc.) become available in your HTML directly.<|im_end|>",
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+      ],
+      "elapsed_s": 19.19624705298338,
+      "input_tokens": 1805
+    },
+    {
+      "raw": "The user wants me to make the button blue using Tailwind CSS classes. I'll update the button in the HTML file to use a blue background/outline styling.\n</think>\n\n<function name=\"edit\"><param name=\"path\">/workspace/index.html</param><param name=\"oldText\"><![CDATA[<h1>Hello</h1><button>Click me</button>]]></param><param name=\"newText\"><![CDATA[<h1>Hello</h1><button class=\"bg-blue-500 text-white rounded-lg\">Click me</button>]]></param></function><|im_end|>",
+      "ids": [
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+      "elapsed_s": 14.989318078005454,
+      "input_tokens": 2058
+    },
+    {
+      "raw": "Let me verify the change.\n</think>\n\n<function name=\"read\"><param name=\"path\">/workspace/index.html</param></function><|im_end|>",
+      "ids": [
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+      "elapsed_s": 3.963727424998069,
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+    },
+    {
+      "raw": "The button now has the Tailwind class `bg-blue-500 text-white rounded-lg` which makes it a blue button with white text and rounded corners.\n</think>\n\nDone! The button now uses Tailwind classes `bg-blue-500 text-white rounded-lg` to make it a blue button with white text and rounded corners.<|im_end|>",
+      "ids": [
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+      "elapsed_s": 6.007850766007323,
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+    }
+  ]
+}

research/multiturn-audit/bf16-agent.mjs

@@ -0,0 +1,34 @@
+import{spawn}from'node:child_process';import fs from'node:fs/promises';import readline from'node:readline';
+import{Agent}from'../../app/node_modules/@earendil-works/pi-agent-core/dist/index.js';
+import{AssistantMessageEventStream}from'../../app/node_modules/@earendil-works/pi-ai/dist/utils/event-stream.js';
+import{AutoTokenizer}from'../../app/node_modules/@huggingface/transformers/dist/transformers.node.mjs';
+import{createWorkspace}from'../../app/src/workspace.mjs';
+import{fitContext,parseCompletion}from'../../app/src/protocol.mjs';
+const python=spawn('research/.venv/bin/python',['research/multiturn-audit/bf16_pipe.py'],{stdio:['pipe','pipe','inherit']});
+const lines=readline.createInterface({input:python.stdout});let receive;lines.on('line',line=>{try{receive?.(JSON.parse(line))}catch{}});
+const tokenizer=await AutoTokenizer.from_pretrained('./models/minicpm5-webgpu');
+const source=await fs.readFile('app/src/agent.worker.mjs','utf8');const systemPrompt=/const systemPrompt = `([\s\S]*?)`;/.exec(source)[1];
+const workspace=createWorkspace();await workspace.ready;const generations=[];
+function streamFn(model,context){
+ const stream=new AssistantMessageEventStream();void(async()=>{
+  const tools=context.tools.map(t=>({type:'function',function:{name:t.name,description:t.description,parameters:t.parameters}}));
+  const{inputs}=fitContext(context,m=>tokenizer.apply_chat_template(m,{tools,enable_thinking:true,add_generation_prompt:true,return_dict:true}),6144);
+  const response=new Promise(resolve=>receive=resolve);python.stdin.write(JSON.stringify({ids:inputs.input_ids.tolist()[0].map(Number),seed:42+generations.length})+'\n');const r=await response;
+  if(r.error)throw Error(r.error);
+  const content=parseCompletion(r.raw,context.tools,{thinkingPrefilled:true});const ended=[1,130073].includes(r.ids.at(-1));
+  const message={role:'assistant',api:model.api,provider:'local-bf16',model:'MiniCPM5-2B-bf16',timestamp:Date.now(),content,
+   stopReason:content.some(b=>b.type==='toolCall')?'toolUse':ended?'stop':'length',usage:{input:inputs.input_ids.dims[1],output:r.ids.length,totalTokens:inputs.input_ids.dims[1]+r.ids.length,cacheRead:0,cacheWrite:0,cost:{input:0,output:0,total:0,cacheRead:0,cacheWrite:0}}};
+  if(!ended&&message.stopReason==='toolUse')throw Error('Truncated tool call');generations.push({...r,input_tokens:inputs.input_ids.dims[1]});
+  console.log(JSON.stringify({generation:generations.length,input:inputs.input_ids.dims[1],output:r.ids.length,answer:content.filter(b=>b.type!=='thinking')}));
+  stream.push({type:'done',reason:message.stopReason,message});stream.end(message);
+ })().catch(error=>{const m={role:'assistant',content:[],stopReason:'error',errorMessage:error.message,timestamp:Date.now()};stream.push({type:'error',reason:'error',error:m});stream.end(m)});return stream;
+}
+let count=0;const agent=new Agent({initialState:{model:{id:'MiniCPM5-2B-bf16',api:'reference',provider:'local-bf16',contextWindow:8192,maxTokens:2048,reasoning:true},systemPrompt,tools:workspace.tools},streamFn,toolExecution:'sequential',shouldStopAfterTurn:()=>++count>=12});
+const result={precision:'BF16',sampling:'temperature1 top_p.95 top_k0 min_p0 repetition1; PyTorch seeds42+generation',turns:[],generations};let before=0;
+try{
+ await workspace.write('/workspace/index.html','<!doctype html><html><head><title>Hello</title></head><body><h1>Hello</h1><button>Click me</button></body></html>');
+ for(const text of ['who are you?','add tailwindcss to the html file','cdn','Make the button blue using Tailwind classes.']){
+  count=0;const start=Date.now();await agent.prompt(text);result.turns.push({prompt:text,elapsedMs:Date.now()-start,messages:agent.state.messages.slice(before),html:await workspace.read('/workspace/index.html')});before=agent.state.messages.length;
+  await fs.writeFile('research/multiturn-audit/bf16-agent-results.json',JSON.stringify(result,null,2));
+ }
+}finally{python.kill();await fs.writeFile('research/multiturn-audit/bf16-agent-results.json',JSON.stringify(result,null,2))}

research/multiturn-audit/bf16-html-render.json

@@ -0,0 +1,8 @@
+{
+  "button": {
+    "background": "rgb(59, 130, 246)",
+    "color": "rgb(255, 255, 255)",
+    "classes": "bg-blue-500 text-white rounded-lg"
+  },
+  "passed": true
+}

research/multiturn-audit/bf16-results.json

@@ -0,0 +1,795 @@
+[
+  {
+    "case": "identity",
+    "thinking": false,
+    "sample": false,
+    "text_match": true,
+    "ids_match": true,
+    "input_tokens": 707,
+    "output_tokens": 64,
+    "ended": true,
+    "elapsed_s": 3.5416229930124246,
+    "raw": "I'm Pi, a coding assistant created by the Z.ai team. I'm running entirely in the user's browser, so I don't have access to your local files or system. I can help you with tasks like writing code, debugging, and answering questions. Is there anything specific you'd like help with?<|im_end|>",
+    "ids": [
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+  },
+  {
+    "case": "identity",
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+    "text_match": true,
+    "ids_match": true,
+    "input_tokens": 705,
+    "output_tokens": 97,
+    "ended": true,
+    "elapsed_s": 4.560574221017305,
+    "raw": "The user is asking who I am. I should provide a factual answer based on my knowledge. I'm Pi, a coding assistant running in the user's browser. Let me give a concise answer.\n</think>\n\nI'm **Pi**, a coding assistant running entirely in your browser. I'm here to help you with code tasks, debugging, and other development-related work. You can ask me anything \u2014 from writing functions to explaining concepts \u2014 and I'll do my best to assist.<|im_end|>",
+    "ids": [
+      608,
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+    ]
+  },
+  {
+    "case": "identity",
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+    "text_match": true,
+    "ids_match": true,
+    "input_tokens": 705,
+    "output_tokens": 86,
+    "ended": true,
+    "elapsed_s": 4.262681342981523,
+    "raw": "The user is asking who I am. I should provide a helpful answer based on my knowledge.\n</think>\n\nI'm a large language model created by **Pi** (Pii), a nonprofit organization. I don't have access to real-time data or the internet, so I'm limited to the knowledge I was trained on. If you have any questions about Pi, or need help with something specific, feel free to ask!<|im_end|>",
+    "ids": [
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+  },
+  {
+    "case": "cdn-followup",
+    "thinking": false,
+    "sample": false,
+    "text_match": true,
+    "ids_match": true,
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+    "output_tokens": 21,
+    "ended": true,
+    "elapsed_s": 1.8571725399815477,
+    "raw": "<function name=\"bash\"><param name=\"command\">ls /workspace/tailwindcss*</param></function><|im_end|>",
+    "ids": [
+      18,
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+      71811,
+      1822,
+      20,
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+    ]
+  },
+  {
+    "case": "cdn-followup",
+    "thinking": true,
+    "sample": false,
+    "text_match": true,
+    "ids_match": true,
+    "input_tokens": 1536,
+    "output_tokens": 173,
+    "ended": true,
+    "elapsed_s": 10.056241576996399,
+    "raw": "Okay, the user is asking about \"cdn\". Let me check the current state of the files. I need to see what's in the index.html and if there's any CDN reference. Let me read the file again.\n\nWait, the last action was adding a link to tailwindcss.css. The user might be asking if there's a CDN link or wants to use a CDN. But the previous steps were about creating the HTML and adding Tailwind. Maybe they want to know if the current setup uses a CDN. Let me check the file content.\n\nWait, the user said \"cdn\" as a query. I should read the current index.html to see if there's any CDN reference. Let me use the read tool.\n</think>\n\n<function name=\"read\"><param name=\"path\">/workspace/index.html</param></function><|im_end|>",
+    "ids": [
+      18812,
+      33,
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+    ]
+  },
+  {
+    "case": "cdn-followup",
+    "thinking": true,
+    "sample": true,
+    "text_match": true,
+    "ids_match": true,
+    "input_tokens": 1536,
+    "output_tokens": 268,
+    "ended": true,
+    "elapsed_s": 15.598300834011752,
+    "raw": "Okay, the user is asking about \"cdn\" now. Let me check what they might need. They might want to know if there's a CDN link added or need to add one. Let me look at the current index.html to see what's there.\n\nFirst, I should read the current state of index.html to verify if CDN is mentioned or needed. Wait, the previous steps were adding Tailwind CSS link. Maybe they want to add a CDN link for the Tailwind CSS library. But the user said \"cdn\" which is vague. Let me check the file.\n\nWait, the last action was editing to add tailwindcss.css link. The user might want to know if there's a CDN version or to add one. But in the context, maybe they want to change the CSS link to use a CDN instead of local file. Let me read the current index.html.\n\nWait, the previous tool calls: I read index.html, edited it to add <link rel=\"stylesheet\" href=\"./tailwindcss.css\">. Now the user says \"cdn\". Maybe they want to replace that with a CDN link. But I need to check current file first. Let me read it.\n</think>\n\n<function name=\"read\"><param name=\"path\">/workspace/index.html</param></function><|im_end|>",
+    "ids": [
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+  }
+]

research/multiturn-audit/bf16_pipe.py

@@ -0,0 +1,14 @@
+"""Local, stdin-only BF16 reference for the actual Pi/just-bash agent harness."""
+import json,sys,time
+import torch
+from transformers import AutoModelForCausalLM,AutoTokenizer,set_seed
+model=AutoModelForCausalLM.from_pretrained('models/source',dtype=torch.bfloat16,attn_implementation='sdpa').to('cuda').eval()
+tokenizer=AutoTokenizer.from_pretrained('models/source')
+for line in sys.stdin:
+ try:
+  request=json.loads(line);set_seed(request.get('seed',42));x=torch.tensor([request['ids']],device='cuda');start=time.perf_counter()
+  with torch.inference_mode():
+   output=model.generate(input_ids=x,attention_mask=torch.ones_like(x),max_new_tokens=2048,do_sample=True,temperature=1,top_p=.95,top_k=0,min_p=0,repetition_penalty=1,eos_token_id=[1,130073])
+  ids=output[0,x.shape[1]:].tolist()
+  print(json.dumps({'raw':tokenizer.decode(ids,skip_special_tokens=False),'ids':ids,'elapsed_s':time.perf_counter()-start}),flush=True)
+ except Exception as error:print(json.dumps({'error':str(error)}),flush=True)

research/multiturn-audit/compare_bf16.py

@@ -0,0 +1,47 @@
+"""Controlled source-model runs using the exact token IDs sent by Transformers.js."""
+import json
+import time
+from pathlib import Path
+
+import torch
+from transformers import AutoModelForCausalLM, AutoTokenizer, set_seed
+
+ROOT = Path(__file__).resolve().parents[2]
+OUT = Path(__file__).with_name("bf16-results.json")
+fixtures = json.loads(Path(__file__).with_name("prompt-fixtures.json").read_text())
+tokenizer = AutoTokenizer.from_pretrained(ROOT / "models/minicpm5-webgpu")
+model = AutoModelForCausalLM.from_pretrained(
+    ROOT / "models/source", dtype=torch.bfloat16, attn_implementation="sdpa"
+).to("cuda").eval()
+results = []
+for case in fixtures:
+    for mode, sample in [("no-think", False), ("think", False), ("think", True)]:
+        reference = case["prompts"][mode]
+        rendered = tokenizer.apply_chat_template(
+            case["messages"], tools=case["tools"], enable_thinking=mode == "think",
+            add_generation_prompt=True, tokenize=False,
+        )
+        py_ids = tokenizer.apply_chat_template(
+            case["messages"], tools=case["tools"], enable_thinking=mode == "think",
+            add_generation_prompt=True,
+        )["input_ids"]
+        # Feed the JS IDs even if a template difference is discovered.
+        inputs = torch.tensor([reference["ids"]], device="cuda")
+        set_seed(42)
+        start = time.perf_counter()
+        with torch.inference_mode():
+            output = model.generate(
+                input_ids=inputs, attention_mask=torch.ones_like(inputs), max_new_tokens=1024,
+                do_sample=sample, temperature=1.0, top_p=0.95 if sample else 1.0,
+                top_k=0, min_p=0.0, repetition_penalty=1.0, eos_token_id=[1, 130073],
+            )
+        ids = output[0, inputs.shape[1]:].tolist()
+        raw = tokenizer.decode(ids, skip_special_tokens=False)
+        record = dict(case=case["name"], thinking=mode == "think", sample=sample,
+                      text_match=rendered == reference["text"], ids_match=py_ids == reference["ids"],
+                      input_tokens=inputs.shape[1], output_tokens=len(ids), ended=ids[-1] in [1, 130073],
+                      elapsed_s=time.perf_counter() - start, raw=raw, ids=ids)
+        results.append(record)
+        OUT.write_text(json.dumps(results, indent=2))
+        print(json.dumps({k: v for k, v in record.items() if k not in ["raw", "ids"]}) +
+              " " + raw.split("</think>")[-1][-900:], flush=True)

research/multiturn-audit/mixed-head-spec.json

@@ -0,0 +1 @@
+{"load":{"name":"minicpm5-head-fp16","limit128":true},"cases":[{"fixture":{"name":"identity","messages":[{"role":"system","content":"You are Pi, a coding assistant running entirely in the user's browser.\nUse your tools to inspect and change actual files. Never claim a command ran or a file changed without a successful tool result.\nWhen the user explicitly asks you to use a tool, call that tool even if you already know the answer.\nWorking directory: /workspace. Use read, write, edit, and bash. Keep tool calls and answers concise.\nThe bash tool is just-bash: a virtual shell with cat, ls, find, grep, sed, awk, jq, sort, wc, printf, pipes, redirects, and shell scripts.\nThere is no network, Python, Node.js, npm, package installation, or native binary execution. For arithmetic and data processing use bash arithmetic, awk, or jq.\nInspect files before editing them. After changing files, verify the result with a tool. Finish with a short factual answer."},{"role":"user","content":"who are you?"}],"tools":[{"type":"function","function":{"name":"bash","description":"Run a bash command in /workspace. Supports cat, ls, grep, sed, awk, jq, sort, pipes, redirects, and shell scripts. No network, Node.js, Python, npm, or native binaries. Files persist across commands; cd and variables reset each call.","parameters":{"type":"object","required":["command"],"properties":{"command":{"type":"string","description":"The shell command to execute."}}}}},{"type":"function","function":{"name":"read","description":"Read a UTF-8 text file. Use bash head/grep for large files.","parameters":{"type":"object","required":["path"],"properties":{"path":{"type":"string"}}}}},{"type":"function","function":{"name":"write","description":"Create or replace a UTF-8 text file. Parent directories are created.","parameters":{"type":"object","required":["path","content"],"properties":{"path":{"type":"string"},"content":{"type":"string"}}}}},{"type":"function","function":{"name":"edit","description":"Replace one exact occurrence of oldText with newText in a UTF-8 file. oldText must match exactly once.","parameters":{"type":"object","required":["path","oldText","newText"],"properties":{"path":{"type":"string"},"oldText":{"type":"string"},"newText":{"type":"string"}}}}}],"prompts":{"no-think":{"text":"<s><|im_start|>system\nYou are Pi, a coding assistant running entirely in the user's browser.\nUse your tools to inspect and change actual files. Never claim a command ran or a file changed without a successful tool result.\nWhen the user explicitly asks you to use a tool, call that tool even if you already know the answer.\nWorking directory: /workspace. Use read, write, edit, and bash. 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Files persist across commands; cd and variables reset each call.\", \"parameters\": {\"type\": \"object\", \"required\": [\"command\"], \"properties\": {\"command\": {\"type\": \"string\", \"description\": \"The shell command to execute.\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"read\", \"description\": \"Read a UTF-8 text file. Use bash head/grep for large files.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\"], \"properties\": {\"path\": {\"type\": \"string\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"write\", \"description\": \"Create or replace a UTF-8 text file. Parent directories are created.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\", \"content\"], \"properties\": {\"path\": {\"type\": \"string\"}, \"content\": {\"type\": \"string\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"edit\", \"description\": \"Replace one exact occurrence of oldText with newText in a UTF-8 file. oldText must match exactly once.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\", \"oldText\", \"newText\"], \"properties\": {\"path\": {\"type\": \"string\"}, \"oldText\": {\"type\": \"string\"}, \"newText\": {\"type\": \"string\"}}}}}\n</tools>\n\nTool usage guidelines:\n- You may call zero or more functions. If no function calls are needed, just answer normally and do not include any <function ... </function>.\n- When calling a function, return an XML object within <function ... </function> using:\n<function name=\"function-name\"><param name=\"param-name\">param-value</param></function>\n- param-value may be multi-line. If it contains <, & or newline characters, wrap it in a CDATA block: <param name=\"param-name\"><![CDATA[...multi-line value...]]></param><|im_end|>\n<|im_start|>user\nwho are you?<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n","ids":[0,130072,17261,220,2311,457,23840,33,280,23287,18495,6135,8844,310,285,5390,468,28511,350,16853,841,7884,317,23161,316,2437,6005,10166,35,10544,3860,280,5913,7371,448,280,5450,6254,1904,280,6980,7722,1248,350,3815,285,5390,13886,14293,447,317,1170,280,7722,33,1455,380,7722,1298,801,447,3053,1110,285,4219,350,51303,22529,47,978,93521,35,7838,1655,33,4900,33,30497,33,316,79885,35,22256,7722,8447,316,10361,44375,350,608,79885,7722,357,1230,1554,1628,47,280,13251,11016,401,4546,33,79967,33,1562,33,128278,33,10831,33,5071,96,33,580,102,33,5649,33,292,88,33,57535,33,34916,33,57718,104,33,316,11016,39669,350,3428,357,768,4014,33,21417,33,42802,20158,33,126170,33,12652,22522,33,448,11964,11740,14437,35,1408,25820,316,1397,7548,1170,79885,25820,33,5071,96,33,448,580,102,350,25516,1016,10166,1482,27460,902,35,4263,8897,10166,33,19837,285,1248,401,280,7722,35,82472,401,280,2871,41172,4219,350,220,24,34056,130063,2311,457,4312,401,1323,38446,2106,242,12,13,38896,32662,990,12,220,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,71811,923,458,32565,977,458,36192,280,79885,5913,310,978,93521,35,6207,4241,4546,33,79967,33,128278,33,10831,33,5071,96,33,580,102,33,5649,33,34916,33,57718,104,33,316,11016,39669,35,2552,4014,33,42802,20158,33,21417,33,126170,33,448,11964,58399,35,49339,29448,3297,21673,48,66089,316,5628,36459,1225,1455,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,22404,8086,458,39613,977,5163,22404,977,5163,2352,977,458,8094,923,458,32565,977,458,608,11016,5913,317,26697,677,60594,1534,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,1584,923,458,32565,977,458,15613,280,651,21899,34,45,2705,5450,35,7838,79885,1833,7975,8011,374,2090,10166,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,29843,113927,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,23452,923,458,32565,977,458,32341,448,8861,280,651,21899,34,45,2705,5450,35,25084,67395,457,5626,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,923,458,8803,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,4912,458,8803,977,5163,2352,977,458,8094,29843,113927,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,9069,923,458,32565,977,458,105677,678,4274,18649,304,2178,7156,401,1071,7156,310,280,651,21899,34,45,5450,35,2178,7156,1488,8810,6129,3097,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,923,458,937,7156,923,458,1897,7156,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,4912,458,937,7156,977,5163,2352,977,458,8094,4912,458,1897,7156,977,5163,2352,977,458,8094,29843,113927,13,130063,44053,14834,16088,990,34,1945,964,1455,5466,448,746,3958,35,1589,768,1323,8447,457,3921,33,1230,4219,12163,316,634,492,3580,890,242,18,3392,242,19,350,34,2471,11749,280,1323,33,2021,305,38896,2140,2106,242,18,3392,242,19,1685,990,18,2546,943,1288,35768,1822,20,2546,943,8291,35768,1822,8291,21402,21,19,220,34,2864,21402,964,365,5181,13579,35,1589,411,5722,527,33,865,448,1071,1424,9112,33,28399,411,310,280,9482,19117,5190,47,242,20,2546,943,8291,35768,10958,54873,6181,19117,80,1720,65131,13579,1886,1720,11638,51,21,130073,220,130072,8448,220,14495,457,447,52,130073,220,130072,130071,220,8,130063,9,130063]},"think":{"text":"<s><|im_start|>system\nYou are Pi, a coding assistant running entirely in the user's browser.\nUse your tools to inspect and change actual files. Never claim a command ran or a file changed without a successful tool result.\nWhen the user explicitly asks you to use a tool, call that tool even if you already know the answer.\nWorking directory: /workspace. Use read, write, edit, and bash. Keep tool calls and answers concise.\nThe bash tool is just-bash: a virtual shell with cat, ls, find, grep, sed, awk, jq, sort, wc, printf, pipes, redirects, and shell scripts.\nThere is no network, Python, Node.js, npm, package installation, or native binary execution. For arithmetic and data processing use bash arithmetic, awk, or jq.\nInspect files before editing them. After changing files, verify the result with a tool. Finish with a short factual answer.\n\n# Tools\n\nYou are provided with function signatures within <tools></tools> XML tags:\n<tools>\n{\"type\": \"function\", \"function\": {\"name\": \"bash\", \"description\": \"Run a bash command in /workspace. Supports cat, ls, grep, sed, awk, jq, sort, pipes, redirects, and shell scripts. No network, Node.js, Python, npm, or native binaries. Files persist across commands; cd and variables reset each call.\", \"parameters\": {\"type\": \"object\", \"required\": [\"command\"], \"properties\": {\"command\": {\"type\": \"string\", \"description\": \"The shell command to execute.\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"read\", \"description\": \"Read a UTF-8 text file. Use bash head/grep for large files.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\"], \"properties\": {\"path\": {\"type\": \"string\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"write\", \"description\": \"Create or replace a UTF-8 text file. Parent directories are created.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\", \"content\"], \"properties\": {\"path\": {\"type\": \"string\"}, \"content\": {\"type\": \"string\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"edit\", \"description\": \"Replace one exact occurrence of oldText with newText in a UTF-8 file. oldText must match exactly once.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\", \"oldText\", \"newText\"], \"properties\": {\"path\": {\"type\": \"string\"}, \"oldText\": {\"type\": \"string\"}, \"newText\": {\"type\": \"string\"}}}}}\n</tools>\n\nTool usage guidelines:\n- You may call zero or more functions. If no function calls are needed, just answer normally and do not include any <function ... </function>.\n- When calling a function, return an XML object within <function ... </function> using:\n<function name=\"function-name\"><param name=\"param-name\">param-value</param></function>\n- param-value may be multi-line. If it contains <, & or newline characters, wrap it in a CDATA block: <param name=\"param-name\"><![CDATA[...multi-line value...]]></param><|im_end|>\n<|im_start|>user\nwho are you?<|im_end|>\n<|im_start|>assistant\n<think>\n","ids":[0,130072,17261,220,2311,457,23840,33,280,23287,18495,6135,8844,310,285,5390,468,28511,350,16853,841,7884,317,23161,316,2437,6005,10166,35,10544,3860,280,5913,7371,448,280,5450,6254,1904,280,6980,7722,1248,350,3815,285,5390,13886,14293,447,317,1170,280,7722,33,1455,380,7722,1298,801,447,3053,1110,285,4219,350,51303,22529,47,978,93521,35,7838,1655,33,4900,33,30497,33,316,79885,35,22256,7722,8447,316,10361,44375,350,608,79885,7722,357,1230,1554,1628,47,280,13251,11016,401,4546,33,79967,33,1562,33,128278,33,10831,33,5071,96,33,580,102,33,5649,33,292,88,33,57535,33,34916,33,57718,104,33,316,11016,39669,350,3428,357,768,4014,33,21417,33,42802,20158,33,126170,33,12652,22522,33,448,11964,11740,14437,35,1408,25820,316,1397,7548,1170,79885,25820,33,5071,96,33,448,580,102,350,25516,1016,10166,1482,27460,902,35,4263,8897,10166,33,19837,285,1248,401,280,7722,35,82472,401,280,2871,41172,4219,350,220,24,34056,130063,2311,457,4312,401,1323,38446,2106,242,12,13,38896,32662,990,12,220,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,71811,923,458,32565,977,458,36192,280,79885,5913,310,978,93521,35,6207,4241,4546,33,79967,33,128278,33,10831,33,5071,96,33,580,102,33,5649,33,34916,33,57718,104,33,316,11016,39669,35,2552,4014,33,42802,20158,33,21417,33,126170,33,448,11964,58399,35,49339,29448,3297,21673,48,66089,316,5628,36459,1225,1455,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,22404,8086,458,39613,977,5163,22404,977,5163,2352,977,458,8094,923,458,32565,977,458,608,11016,5913,317,26697,677,60594,1534,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,1584,923,458,32565,977,458,15613,280,651,21899,34,45,2705,5450,35,7838,79885,1833,7975,8011,374,2090,10166,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,29843,113927,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,23452,923,458,32565,977,458,32341,448,8861,280,651,21899,34,45,2705,5450,35,25084,67395,457,5626,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,923,458,8803,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,4912,458,8803,977,5163,2352,977,458,8094,29843,113927,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,9069,923,458,32565,977,458,105677,678,4274,18649,304,2178,7156,401,1071,7156,310,280,651,21899,34,45,5450,35,2178,7156,1488,8810,6129,3097,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,923,458,937,7156,923,458,1897,7156,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,4912,458,937,7156,977,5163,2352,977,458,8094,4912,458,1897,7156,977,5163,2352,977,458,8094,29843,113927,13,130063,44053,14834,16088,990,34,1945,964,1455,5466,448,746,3958,35,1589,768,1323,8447,457,3921,33,1230,4219,12163,316,634,492,3580,890,242,18,3392,242,19,350,34,2471,11749,280,1323,33,2021,305,38896,2140,2106,242,18,3392,242,19,1685,990,18,2546,943,1288,35768,1822,20,2546,943,8291,35768,1822,8291,21402,21,19,220,34,2864,21402,964,365,5181,13579,35,1589,411,5722,527,33,865,448,1071,1424,9112,33,28399,411,310,280,9482,19117,5190,47,242,20,2546,943,8291,35768,10958,54873,6181,19117,80,1720,65131,13579,1886,1720,11638,51,21,130073,220,130072,8448,220,14495,457,447,52,130073,220,130072,130071,220,8,220]}}},"options":{"thinking":true,"sample":true,"seed":42,"maxTokens":1024}},{"fixture":{"name":"identity","messages":[{"role":"system","content":"You are Pi, a coding assistant running entirely in the user's browser.\nUse your tools to inspect and change actual files. Never claim a command ran or a file changed without a successful tool result.\nWhen the user explicitly asks you to use a tool, call that tool even if you already know the answer.\nWorking directory: /workspace. Use read, write, edit, and bash. Keep tool calls and answers concise.\nThe bash tool is just-bash: a virtual shell with cat, ls, find, grep, sed, awk, jq, sort, wc, printf, pipes, redirects, and shell scripts.\nThere is no network, Python, Node.js, npm, package installation, or native binary execution. For arithmetic and data processing use bash arithmetic, awk, or jq.\nInspect files before editing them. After changing files, verify the result with a tool. Finish with a short factual answer."},{"role":"user","content":"who are you?"}],"tools":[{"type":"function","function":{"name":"bash","description":"Run a bash command in /workspace. Supports cat, ls, grep, sed, awk, jq, sort, pipes, redirects, and shell scripts. No network, Node.js, Python, npm, or native binaries. Files persist across commands; cd and variables reset each call.","parameters":{"type":"object","required":["command"],"properties":{"command":{"type":"string","description":"The shell command to execute."}}}}},{"type":"function","function":{"name":"read","description":"Read a UTF-8 text file. Use bash head/grep for large files.","parameters":{"type":"object","required":["path"],"properties":{"path":{"type":"string"}}}}},{"type":"function","function":{"name":"write","description":"Create or replace a UTF-8 text file. Parent directories are created.","parameters":{"type":"object","required":["path","content"],"properties":{"path":{"type":"string"},"content":{"type":"string"}}}}},{"type":"function","function":{"name":"edit","description":"Replace one exact occurrence of oldText with newText in a UTF-8 file. oldText must match exactly once.","parameters":{"type":"object","required":["path","oldText","newText"],"properties":{"path":{"type":"string"},"oldText":{"type":"string"},"newText":{"type":"string"}}}}}],"prompts":{"no-think":{"text":"<s><|im_start|>system\nYou are Pi, a coding assistant running entirely in the user's browser.\nUse your tools to inspect and change actual files. Never claim a command ran or a file changed without a successful tool result.\nWhen the user explicitly asks you to use a tool, call that tool even if you already know the answer.\nWorking directory: /workspace. Use read, write, edit, and bash. Keep tool calls and answers concise.\nThe bash tool is just-bash: a virtual shell with cat, ls, find, grep, sed, awk, jq, sort, wc, printf, pipes, redirects, and shell scripts.\nThere is no network, Python, Node.js, npm, package installation, or native binary execution. For arithmetic and data processing use bash arithmetic, awk, or jq.\nInspect files before editing them. After changing files, verify the result with a tool. Finish with a short factual answer.\n\n# Tools\n\nYou are provided with function signatures within <tools></tools> XML tags:\n<tools>\n{\"type\": \"function\", \"function\": {\"name\": \"bash\", \"description\": \"Run a bash command in /workspace. Supports cat, ls, grep, sed, awk, jq, sort, pipes, redirects, and shell scripts. No network, Node.js, Python, npm, or native binaries. Files persist across commands; cd and variables reset each call.\", \"parameters\": {\"type\": \"object\", \"required\": [\"command\"], \"properties\": {\"command\": {\"type\": \"string\", \"description\": \"The shell command to execute.\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"read\", \"description\": \"Read a UTF-8 text file. Use bash head/grep for large files.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\"], \"properties\": {\"path\": {\"type\": \"string\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"write\", \"description\": \"Create or replace a UTF-8 text file. Parent directories are created.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\", \"content\"], \"properties\": {\"path\": {\"type\": \"string\"}, \"content\": {\"type\": \"string\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"edit\", \"description\": \"Replace one exact occurrence of oldText with newText in a UTF-8 file. oldText must match exactly once.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\", \"oldText\", \"newText\"], \"properties\": {\"path\": {\"type\": \"string\"}, \"oldText\": {\"type\": \"string\"}, \"newText\": {\"type\": \"string\"}}}}}\n</tools>\n\nTool usage guidelines:\n- You may call zero or more functions. If no function calls are needed, just answer normally and do not include any <function ... </function>.\n- When calling a function, return an XML object within <function ... </function> using:\n<function name=\"function-name\"><param name=\"param-name\">param-value</param></function>\n- param-value may be multi-line. If it contains <, & or newline characters, wrap it in a CDATA block: <param name=\"param-name\"><![CDATA[...multi-line value...]]></param><|im_end|>\n<|im_start|>user\nwho are you?<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n","ids":[0,130072,17261,220,2311,457,23840,33,280,23287,18495,6135,8844,310,285,5390,468,28511,350,16853,841,7884,317,23161,316,2437,6005,10166,35,10544,3860,280,5913,7371,448,280,5450,6254,1904,280,6980,7722,1248,350,3815,285,5390,13886,14293,447,317,1170,280,7722,33,1455,380,7722,1298,801,447,3053,1110,285,4219,350,51303,22529,47,978,93521,35,7838,1655,33,4900,33,30497,33,316,79885,35,22256,7722,8447,316,10361,44375,350,608,79885,7722,357,1230,1554,1628,47,280,13251,11016,401,4546,33,79967,33,1562,33,128278,33,10831,33,5071,96,33,580,102,33,5649,33,292,88,33,57535,33,34916,33,57718,104,33,316,11016,39669,350,3428,357,768,4014,33,21417,33,42802,20158,33,126170,33,12652,22522,33,448,11964,11740,14437,35,1408,25820,316,1397,7548,1170,79885,25820,33,5071,96,33,448,580,102,350,25516,1016,10166,1482,27460,902,35,4263,8897,10166,33,19837,285,1248,401,280,7722,35,82472,401,280,2871,41172,4219,350,220,24,34056,130063,2311,457,4312,401,1323,38446,2106,242,12,13,38896,32662,990,12,220,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,71811,923,458,32565,977,458,36192,280,79885,5913,310,978,93521,35,6207,4241,4546,33,79967,33,128278,33,10831,33,5071,96,33,580,102,33,5649,33,34916,33,57718,104,33,316,11016,39669,35,2552,4014,33,42802,20158,33,21417,33,126170,33,448,11964,58399,35,49339,29448,3297,21673,48,66089,316,5628,36459,1225,1455,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,22404,8086,458,39613,977,5163,22404,977,5163,2352,977,458,8094,923,458,32565,977,458,608,11016,5913,317,26697,677,60594,1534,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,1584,923,458,32565,977,458,15613,280,651,21899,34,45,2705,5450,35,7838,79885,1833,7975,8011,374,2090,10166,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,29843,113927,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,23452,923,458,32565,977,458,32341,448,8861,280,651,21899,34,45,2705,5450,35,25084,67395,457,5626,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,923,458,8803,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,4912,458,8803,977,5163,2352,977,458,8094,29843,113927,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,9069,923,458,32565,977,458,105677,678,4274,18649,304,2178,7156,401,1071,7156,310,280,651,21899,34,45,5450,35,2178,7156,1488,8810,6129,3097,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,923,458,937,7156,923,458,1897,7156,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,4912,458,937,7156,977,5163,2352,977,458,8094,4912,458,1897,7156,977,5163,2352,977,458,8094,29843,113927,13,130063,44053,14834,16088,990,34,1945,964,1455,5466,448,746,3958,35,1589,768,1323,8447,457,3921,33,1230,4219,12163,316,634,492,3580,890,242,18,3392,242,19,350,34,2471,11749,280,1323,33,2021,305,38896,2140,2106,242,18,3392,242,19,1685,990,18,2546,943,1288,35768,1822,20,2546,943,8291,35768,1822,8291,21402,21,19,220,34,2864,21402,964,365,5181,13579,35,1589,411,5722,527,33,865,448,1071,1424,9112,33,28399,411,310,280,9482,19117,5190,47,242,20,2546,943,8291,35768,10958,54873,6181,19117,80,1720,65131,13579,1886,1720,11638,51,21,130073,220,130072,8448,220,14495,457,447,52,130073,220,130072,130071,220,8,130063,9,130063]},"think":{"text":"<s><|im_start|>system\nYou are Pi, a coding assistant running entirely in the user's browser.\nUse your tools to inspect and change actual files. Never claim a command ran or a file changed without a successful tool result.\nWhen the user explicitly asks you to use a tool, call that tool even if you already know the answer.\nWorking directory: /workspace. Use read, write, edit, and bash. Keep tool calls and answers concise.\nThe bash tool is just-bash: a virtual shell with cat, ls, find, grep, sed, awk, jq, sort, wc, printf, pipes, redirects, and shell scripts.\nThere is no network, Python, Node.js, npm, package installation, or native binary execution. For arithmetic and data processing use bash arithmetic, awk, or jq.\nInspect files before editing them. After changing files, verify the result with a tool. Finish with a short factual answer.\n\n# Tools\n\nYou are provided with function signatures within <tools></tools> XML tags:\n<tools>\n{\"type\": \"function\", \"function\": {\"name\": \"bash\", \"description\": \"Run a bash command in /workspace. Supports cat, ls, grep, sed, awk, jq, sort, pipes, redirects, and shell scripts. No network, Node.js, Python, npm, or native binaries. Files persist across commands; cd and variables reset each call.\", \"parameters\": {\"type\": \"object\", \"required\": [\"command\"], \"properties\": {\"command\": {\"type\": \"string\", \"description\": \"The shell command to execute.\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"read\", \"description\": \"Read a UTF-8 text file. Use bash head/grep for large files.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\"], \"properties\": {\"path\": {\"type\": \"string\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"write\", \"description\": \"Create or replace a UTF-8 text file. Parent directories are created.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\", \"content\"], \"properties\": {\"path\": {\"type\": \"string\"}, \"content\": {\"type\": \"string\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"edit\", \"description\": \"Replace one exact occurrence of oldText with newText in a UTF-8 file. oldText must match exactly once.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\", \"oldText\", \"newText\"], \"properties\": {\"path\": {\"type\": \"string\"}, \"oldText\": {\"type\": \"string\"}, \"newText\": {\"type\": \"string\"}}}}}\n</tools>\n\nTool usage guidelines:\n- You may call zero or more functions. If no function calls are needed, just answer normally and do not include any <function ... </function>.\n- When calling a function, return an XML object within <function ... </function> using:\n<function name=\"function-name\"><param name=\"param-name\">param-value</param></function>\n- param-value may be multi-line. If it contains <, & or newline characters, wrap it in a CDATA block: <param name=\"param-name\"><![CDATA[...multi-line value...]]></param><|im_end|>\n<|im_start|>user\nwho are you?<|im_end|>\n<|im_start|>assistant\n<think>\n","ids":[0,130072,17261,220,2311,457,23840,33,280,23287,18495,6135,8844,310,285,5390,468,28511,350,16853,841,7884,317,23161,316,2437,6005,10166,35,10544,3860,280,5913,7371,448,280,5450,6254,1904,280,6980,7722,1248,350,3815,285,5390,13886,14293,447,317,1170,280,7722,33,1455,380,7722,1298,801,447,3053,1110,285,4219,350,51303,22529,47,978,93521,35,7838,1655,33,4900,33,30497,33,316,79885,35,22256,7722,8447,316,10361,44375,350,608,79885,7722,357,1230,1554,1628,47,280,13251,11016,401,4546,33,79967,33,1562,33,128278,33,10831,33,5071,96,33,580,102,33,5649,33,292,88,33,57535,33,34916,33,57718,104,33,316,11016,39669,350,3428,357,768,4014,33,21417,33,42802,20158,33,126170,33,12652,22522,33,448,11964,11740,14437,35,1408,25820,316,1397,7548,1170,79885,25820,33,5071,96,33,448,580,102,350,25516,1016,10166,1482,27460,902,35,4263,8897,10166,33,19837,285,1248,401,280,7722,35,82472,401,280,2871,41172,4219,350,220,24,34056,130063,2311,457,4312,401,1323,38446,2106,242,12,13,38896,32662,990,12,220,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,71811,923,458,32565,977,458,36192,280,79885,5913,310,978,93521,35,6207,4241,4546,33,79967,33,128278,33,10831,33,5071,96,33,580,102,33,5649,33,34916,33,57718,104,33,316,11016,39669,35,2552,4014,33,42802,20158,33,21417,33,126170,33,448,11964,58399,35,49339,29448,3297,21673,48,66089,316,5628,36459,1225,1455,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,22404,8086,458,39613,977,5163,22404,977,5163,2352,977,458,8094,923,458,32565,977,458,608,11016,5913,317,26697,677,60594,1534,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,1584,923,458,32565,977,458,15613,280,651,21899,34,45,2705,5450,35,7838,79885,1833,7975,8011,374,2090,10166,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,29843,113927,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,23452,923,458,32565,977,458,32341,448,8861,280,651,21899,34,45,2705,5450,35,25084,67395,457,5626,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,923,458,8803,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,4912,458,8803,977,5163,2352,977,458,8094,29843,113927,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,9069,923,458,32565,977,458,105677,678,4274,18649,304,2178,7156,401,1071,7156,310,280,651,21899,34,45,5450,35,2178,7156,1488,8810,6129,3097,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,923,458,937,7156,923,458,1897,7156,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,4912,458,937,7156,977,5163,2352,977,458,8094,4912,458,1897,7156,977,5163,2352,977,458,8094,29843,113927,13,130063,44053,14834,16088,990,34,1945,964,1455,5466,448,746,3958,35,1589,768,1323,8447,457,3921,33,1230,4219,12163,316,634,492,3580,890,242,18,3392,242,19,350,34,2471,11749,280,1323,33,2021,305,38896,2140,2106,242,18,3392,242,19,1685,990,18,2546,943,1288,35768,1822,20,2546,943,8291,35768,1822,8291,21402,21,19,220,34,2864,21402,964,365,5181,13579,35,1589,411,5722,527,33,865,448,1071,1424,9112,33,28399,411,310,280,9482,19117,5190,47,242,20,2546,943,8291,35768,10958,54873,6181,19117,80,1720,65131,13579,1886,1720,11638,51,21,130073,220,130072,8448,220,14495,457,447,52,130073,220,130072,130071,220,8,220]}}},"options":{"thinking":true,"sample":false,"maxTokens":1024}},{"fixture":{"name":"cdn-followup","messages":[{"role":"system","content":"You are Pi, a coding assistant running entirely in the user's browser.\nUse your tools to inspect and change actual files. Never claim a command ran or a file changed without a successful tool result.\nWhen the user explicitly asks you to use a tool, call that tool even if you already know the answer.\nWorking directory: /workspace. Use read, write, edit, and bash. Keep tool calls and answers concise.\nThe bash tool is just-bash: a virtual shell with cat, ls, find, grep, sed, awk, jq, sort, wc, printf, pipes, redirects, and shell scripts.\nThere is no network, Python, Node.js, npm, package installation, or native binary execution. For arithmetic and data processing use bash arithmetic, awk, or jq.\nInspect files before editing them. After changing files, verify the result with a tool. Finish with a short factual answer."},{"role":"user","content":"who are you?"},{"role":"assistant","content":"I'm not sure what you're asking about. Could you help me understand what you need?","tool_calls":[]},{"role":"user","content":"what model are you?"},{"role":"assistant","content":"I'm not sure what you're asking about. Could you help me understand what you need?","tool_calls":[]},{"role":"user","content":"Create index.html with a simple Hello page and a button."},{"role":"assistant","content":"","tool_calls":[{"type":"function","function":{"name":"bash","arguments":{"command":"ls /workspace"}}}]},{"role":"tool","content":"{\"name\":\"bash\",\"isError\":false,\"output\":\"README.md\\ncontext-check.txt\\nfirst-message.txt\\nhello.sh\\nindex.html\\nmissing.txt\\nnumbers.txt\\nrender-missing.txt\\nrender-notes.md\\nreport.md\\nrevenue.txt\\nsales.csv\\nsecret.txt\\ntodo\\nui-test.txt\\n\\nExit code: 0\"}"},{"role":"assistant","content":"","tool_calls":[{"type":"function","function":{"name":"read","arguments":{"path":"/workspace/index.html"}}}]},{"role":"tool","content":"{\"name\":\"read\",\"isError\":false,\"output\":\"<!doctype html><html><head><title>Hello</title></head><body><h1>Hello</h1><button>Click me</button></body></html>\"}"},{"role":"assistant","content":"","tool_calls":[{"type":"function","function":{"name":"write","arguments":{"path":"/workspace/index.html","content":"<!doctype html>\n<html>\n<head>\n  <title>Hello</title>\n</head>\n<body>\n  <h1>Hello</h1>\n  <button id=\"greet\">Click me</button>\n</body>\n</html>\n"}}}]},{"role":"tool","content":"{\"name\":\"write\",\"isError\":false,\"output\":\"Wrote /workspace/index.html\"}"},{"role":"assistant","content":"","tool_calls":[{"type":"function","function":{"name":"read","arguments":{"path":"/workspace/index.html"}}}]},{"role":"tool","content":"{\"name\":\"read\",\"isError\":false,\"output\":\"<!doctype html>\\n<html>\\n<head>\\n  <title>Hello</title>\\n</head>\\n<body>\\n  <h1>Hello</h1>\\n  <button id=\\\"greet\\\">Click me</button>\\n</body>\\n</html>\\n\"}"},{"role":"assistant","content":"Done. I've created `/workspace/index.html` with a simple Hello page and a button. The file contains:\n- `<h1>Hello</h1>` — a greeting heading\n- `<button id=\"greet\">Click me</button>` — a button you can click\n\nThe file is verified and ready.","tool_calls":[]},{"role":"user","content":"add tailwindcss to the html file"},{"role":"assistant","content":"","tool_calls":[{"type":"function","function":{"name":"edit","arguments":{"path":"/workspace/index.html","oldText":"<!doctype html>\n<html>\n<head>\n  <title>Hello</title>\n</head>\n<body>\n  <h1>Hello</h1>\n  <button id=\"greet\">Click me</button>\n</body>\n</html>","newText":"<!doctype html>\n<html>\n<head>\n  <title>Hello</title>\n  <link rel=\"stylesheet\" href=\"./tailwindcss.css\">\n</head>\n<body>\n  <h1>Hello</h1>\n  <button id=\"greet\">Click me</button>\n</body>\n</html>"}}}]},{"role":"tool","content":"{\"name\":\"edit\",\"isError\":false,\"output\":\"Edited /workspace/index.html\"}"},{"role":"assistant","content":"Done. I've added a Tailwind CSS link to the `<head>` of `/workspace/index.html` so the stylesheet will be loaded when the page renders.","tool_calls":[]},{"role":"user","content":"cdn"}],"tools":[{"type":"function","function":{"name":"bash","description":"Run a bash command in /workspace. Supports cat, ls, grep, sed, awk, jq, sort, pipes, redirects, and shell scripts. No network, Node.js, Python, npm, or native binaries. Files persist across commands; cd and variables reset each call.","parameters":{"type":"object","required":["command"],"properties":{"command":{"type":"string","description":"The shell command to execute."}}}}},{"type":"function","function":{"name":"read","description":"Read a UTF-8 text file. Use bash head/grep for large files.","parameters":{"type":"object","required":["path"],"properties":{"path":{"type":"string"}}}}},{"type":"function","function":{"name":"write","description":"Create or replace a UTF-8 text file. Parent directories are created.","parameters":{"type":"object","required":["path","content"],"properties":{"path":{"type":"string"},"content":{"type":"string"}}}}},{"type":"function","function":{"name":"edit","description":"Replace one exact occurrence of oldText with newText in a UTF-8 file. oldText must match exactly once.","parameters":{"type":"object","required":["path","oldText","newText"],"properties":{"path":{"type":"string"},"oldText":{"type":"string"},"newText":{"type":"string"}}}}}],"prompts":{"no-think":{"text":"<s><|im_start|>system\nYou are Pi, a coding assistant running entirely in the user's browser.\nUse your tools to inspect and change actual files. Never claim a command ran or a file changed without a successful tool result.\nWhen the user explicitly asks you to use a tool, call that tool even if you already know the answer.\nWorking directory: /workspace. Use read, write, edit, and bash. Keep tool calls and answers concise.\nThe bash tool is just-bash: a virtual shell with cat, ls, find, grep, sed, awk, jq, sort, wc, printf, pipes, redirects, and shell scripts.\nThere is no network, Python, Node.js, npm, package installation, or native binary execution. For arithmetic and data processing use bash arithmetic, awk, or jq.\nInspect files before editing them. After changing files, verify the result with a tool. Finish with a short factual answer.\n\n# Tools\n\nYou are provided with function signatures within <tools></tools> XML tags:\n<tools>\n{\"type\": \"function\", \"function\": {\"name\": \"bash\", \"description\": \"Run a bash command in /workspace. Supports cat, ls, grep, sed, awk, jq, sort, pipes, redirects, and shell scripts. No network, Node.js, Python, npm, or native binaries. Files persist across commands; cd and variables reset each call.\", \"parameters\": {\"type\": \"object\", \"required\": [\"command\"], \"properties\": {\"command\": {\"type\": \"string\", \"description\": \"The shell command to execute.\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"read\", \"description\": \"Read a UTF-8 text file. Use bash head/grep for large files.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\"], \"properties\": {\"path\": {\"type\": \"string\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"write\", \"description\": \"Create or replace a UTF-8 text file. Parent directories are created.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\", \"content\"], \"properties\": {\"path\": {\"type\": \"string\"}, \"content\": {\"type\": \"string\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"edit\", \"description\": \"Replace one exact occurrence of oldText with newText in a UTF-8 file. oldText must match exactly once.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\", \"oldText\", \"newText\"], \"properties\": {\"path\": {\"type\": \"string\"}, \"oldText\": {\"type\": \"string\"}, \"newText\": {\"type\": \"string\"}}}}}\n</tools>\n\nTool usage guidelines:\n- You may call zero or more functions. If no function calls are needed, just answer normally and do not include any <function ... </function>.\n- When calling a function, return an XML object within <function ... </function> using:\n<function name=\"function-name\"><param name=\"param-name\">param-value</param></function>\n- param-value may be multi-line. If it contains <, & or newline characters, wrap it in a CDATA block: <param name=\"param-name\"><![CDATA[...multi-line value...]]></param><|im_end|>\n<|im_start|>user\nwho are you?<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\nI'm not sure what you're asking about. Could you help me understand what you need?<|im_end|>\n<|im_start|>user\nwhat model are you?<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\nI'm not sure what you're asking about. Could you help me understand what you need?<|im_end|>\n<|im_start|>user\nCreate index.html with a simple Hello page and a button.<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n<function name=\"bash\"><param name=\"command\">ls /workspace</param></function><|im_end|>\n<|im_start|>user\n<tool_response>\n{\"name\":\"bash\",\"isError\":false,\"output\":\"README.md\\ncontext-check.txt\\nfirst-message.txt\\nhello.sh\\nindex.html\\nmissing.txt\\nnumbers.txt\\nrender-missing.txt\\nrender-notes.md\\nreport.md\\nrevenue.txt\\nsales.csv\\nsecret.txt\\ntodo\\nui-test.txt\\n\\nExit code: 0\"}\n</tool_response><|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n<function name=\"read\"><param name=\"path\">/workspace/index.html</param></function><|im_end|>\n<|im_start|>user\n<tool_response>\n{\"name\":\"read\",\"isError\":false,\"output\":\"<!doctype html><html><head><title>Hello</title></head><body><h1>Hello</h1><button>Click me</button></body></html>\"}\n</tool_response><|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n<function name=\"write\"><param name=\"path\">/workspace/index.html</param><param name=\"content\"><![CDATA[<!doctype html>\n<html>\n<head>\n  <title>Hello</title>\n</head>\n<body>\n  <h1>Hello</h1>\n  <button id=\"greet\">Click me</button>\n</body>\n</html>\n]]></param></function><|im_end|>\n<|im_start|>user\n<tool_response>\n{\"name\":\"write\",\"isError\":false,\"output\":\"Wrote /workspace/index.html\"}\n</tool_response><|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n<function name=\"read\"><param name=\"path\">/workspace/index.html</param></function><|im_end|>\n<|im_start|>user\n<tool_response>\n{\"name\":\"read\",\"isError\":false,\"output\":\"<!doctype html>\\n<html>\\n<head>\\n  <title>Hello</title>\\n</head>\\n<body>\\n  <h1>Hello</h1>\\n  <button id=\\\"greet\\\">Click me</button>\\n</body>\\n</html>\\n\"}\n</tool_response><|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\nDone. I've created `/workspace/index.html` with a simple Hello page and a button. The file contains:\n- `<h1>Hello</h1>` — a greeting heading\n- `<button id=\"greet\">Click me</button>` — a button you can click\n\nThe file is verified and ready.<|im_end|>\n<|im_start|>user\nadd tailwindcss to the html file<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n<function name=\"edit\"><param name=\"path\">/workspace/index.html</param><param name=\"oldText\"><![CDATA[<!doctype html>\n<html>\n<head>\n  <title>Hello</title>\n</head>\n<body>\n  <h1>Hello</h1>\n  <button id=\"greet\">Click me</button>\n</body>\n</html>]]></param><param name=\"newText\"><![CDATA[<!doctype html>\n<html>\n<head>\n  <title>Hello</title>\n  <link rel=\"stylesheet\" href=\"./tailwindcss.css\">\n</head>\n<body>\n  <h1>Hello</h1>\n  <button id=\"greet\">Click me</button>\n</body>\n</html>]]></param></function><|im_end|>\n<|im_start|>user\n<tool_response>\n{\"name\":\"edit\",\"isError\":false,\"output\":\"Edited /workspace/index.html\"}\n</tool_response><|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\nDone. I've added a Tailwind CSS link to the `<head>` of `/workspace/index.html` so the stylesheet will be loaded when the page renders.<|im_end|>\n<|im_start|>user\ncdn<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n","ids":[0,130072,17261,220,2311,457,23840,33,280,23287,18495,6135,8844,310,285,5390,468,28511,350,16853,841,7884,317,23161,316,2437,6005,10166,35,10544,3860,280,5913,7371,448,280,5450,6254,1904,280,6980,7722,1248,350,3815,285,5390,13886,14293,447,317,1170,280,7722,33,1455,380,7722,1298,801,447,3053,1110,285,4219,350,51303,22529,47,978,93521,35,7838,1655,33,4900,33,30497,33,316,79885,35,22256,7722,8447,316,10361,44375,350,608,79885,7722,357,1230,1554,1628,47,280,13251,11016,401,4546,33,79967,33,1562,33,128278,33,10831,33,5071,96,33,580,102,33,5649,33,292,88,33,57535,33,34916,33,57718,104,33,316,11016,39669,350,3428,357,768,4014,33,21417,33,42802,20158,33,126170,33,12652,22522,33,448,11964,11740,14437,35,1408,25820,316,1397,7548,1170,79885,25820,33,5071,96,33,448,580,102,350,25516,1016,10166,1482,27460,902,35,4263,8897,10166,33,19837,285,1248,401,280,7722,35,82472,401,280,2871,41172,4219,350,220,24,34056,130063,2311,457,4312,401,1323,38446,2106,242,12,13,38896,32662,990,12,220,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,71811,923,458,32565,977,458,36192,280,79885,5913,310,978,93521,35,6207,4241,4546,33,79967,33,128278,33,10831,33,5071,96,33,580,102,33,5649,33,34916,33,57718,104,33,316,11016,39669,35,2552,4014,33,42802,20158,33,21417,33,126170,33,448,11964,58399,35,49339,29448,3297,21673,48,66089,316,5628,36459,1225,1455,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,22404,8086,458,39613,977,5163,22404,977,5163,2352,977,458,8094,923,458,32565,977,458,608,11016,5913,317,26697,677,60594,1534,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,1584,923,458,32565,977,458,15613,280,651,21899,34,45,2705,5450,35,7838,79885,1833,7975,8011,374,2090,10166,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,29843,113927,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,23452,923,458,32565,977,458,32341,448,8861,280,651,21899,34,45,2705,5450,35,25084,67395,457,5626,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,923,458,8803,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,4912,458,8803,977,5163,2352,977,458,8094,29843,113927,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,9069,923,458,32565,977,458,105677,678,4274,18649,304,2178,7156,401,1071,7156,310,280,651,21899,34,45,5450,35,2178,7156,1488,8810,6129,3097,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,923,458,937,7156,923,458,1897,7156,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,4912,458,937,7156,977,5163,2352,977,458,8094,4912,458,1897,7156,977,5163,2352,977,458,8094,29843,113927,13,130063,44053,14834,16088,990,34,1945,964,1455,5466,448,746,3958,35,1589,768,1323,8447,457,3921,33,1230,4219,12163,316,634,492,3580,890,242,18,3392,242,19,350,34,2471,11749,280,1323,33,2021,305,38896,2140,2106,242,18,3392,242,19,1685,990,18,2546,943,1288,35768,1822,20,2546,943,8291,35768,1822,8291,21402,21,19,220,34,2864,21402,964,365,5181,13579,35,1589,411,5722,527,33,865,448,1071,1424,9112,33,28399,411,310,280,9482,19117,5190,47,242,20,2546,943,8291,35768,10958,54873,6181,19117,80,1720,65131,13579,1886,1720,11638,51,21,130073,220,130072,8448,220,14495,457,447,52,130073,220,130072,130071,220,8,130063,9,130063,62,2077,492,3153,976,447,2093,10615,850,35,23546,447,1848,559,2409,976,447,1178,52,130073,220,130072,8448,220,6658,1327,457,447,52,130073,220,130072,130071,220,8,130063,9,130063,62,2077,492,3153,976,447,2093,10615,850,35,23546,447,1848,559,2409,976,447,1178,52,130073,220,130072,8448,220,32341,4992,8816,401,280,3644,37632,4926,316,280,12769,35,130073,220,130072,130071,220,8,130063,9,130063,18,2546,943,71811,1822,20,2546,943,22404,1822,6711,978,93521,21,19,130073,220,130072,8448,220,10,220,4945,2075,4441,71811,2131,293,12571,977,24330,721,15279,4441,121656,27521,3195,19876,38594,16524,3195,15331,2295,12066,16524,3195,59800,7599,3195,4539,8816,3195,71976,16524,3195,92731,16524,3195,20682,2295,35427,16524,3195,20682,34,35106,27521,3195,63109,27521,3195,284,8123,16524,3195,76930,19959,3195,53910,16524,3195,105,25117,47031,94,33064,16524,3195,3195,67605,5018,47,242,37,110191,11,130073,220,130072,130071,220,8,130063,9,130063,18,2546,943,1584,1822,20,2546,943,7346,1822,36,93521,31684,8816,21,19,130073,220,130072,8448,220,10,220,4945,2075,4441,1584,2131,293,12571,977,24330,721,15279,4441,94647,4969,330,1399,47240,332,6820,332,3561,332,12791,6738,11592,352,12791,503,3561,332,3680,332,93,38,6738,11592,352,93,38,332,19603,51,24477,559,352,19603,503,3680,503,6820,54759,1534,11,130073,220,130072,130071,220,8,130063,9,130063,18,2546,943,23452,1822,20,2546,943,7346,1822,36,93521,31684,8816,21,20,2546,943,8803,10958,54873,6181,19117,80,94647,4969,330,1399,47240,546,111403,546,49,3561,546,242,527,12791,6738,11592,352,12791,546,352,3561,546,127051,546,242,527,93,38,6738,11592,352,93,38,546,242,527,19603,38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are Pi, a coding assistant running entirely in the user's browser.\nUse your tools to inspect and change actual files. Never claim a command ran or a file changed without a successful tool result.\nWhen the user explicitly asks you to use a tool, call that tool even if you already know the answer.\nWorking directory: /workspace. Use read, write, edit, and bash. Keep tool calls and answers concise.\nThe bash tool is just-bash: a virtual shell with cat, ls, find, grep, sed, awk, jq, sort, wc, printf, pipes, redirects, and shell scripts.\nThere is no network, Python, Node.js, npm, package installation, or native binary execution. For arithmetic and data processing use bash arithmetic, awk, or jq.\nInspect files before editing them. After changing files, verify the result with a tool. Finish with a short factual answer.\n\n# Tools\n\nYou are provided with function signatures within <tools></tools> XML tags:\n<tools>\n{\"type\": \"function\", \"function\": {\"name\": \"bash\", \"description\": \"Run a bash command in /workspace. Supports cat, ls, grep, sed, awk, jq, sort, pipes, redirects, and shell scripts. No network, Node.js, Python, npm, or native binaries. Files persist across commands; cd and variables reset each call.\", \"parameters\": {\"type\": \"object\", \"required\": [\"command\"], \"properties\": {\"command\": {\"type\": \"string\", \"description\": \"The shell command to execute.\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"read\", \"description\": \"Read a UTF-8 text file. Use bash head/grep for large files.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\"], \"properties\": {\"path\": {\"type\": \"string\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"write\", \"description\": \"Create or replace a UTF-8 text file. Parent directories are created.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\", \"content\"], \"properties\": {\"path\": {\"type\": \"string\"}, \"content\": {\"type\": \"string\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"edit\", \"description\": \"Replace one exact occurrence of oldText with newText in a UTF-8 file. oldText must match exactly once.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\", \"oldText\", \"newText\"], \"properties\": {\"path\": {\"type\": \"string\"}, \"oldText\": {\"type\": \"string\"}, \"newText\": {\"type\": \"string\"}}}}}\n</tools>\n\nTool usage guidelines:\n- You may call zero or more functions. If no function calls are needed, just answer normally and do not include any <function ... </function>.\n- When calling a function, return an XML object within <function ... </function> using:\n<function name=\"function-name\"><param name=\"param-name\">param-value</param></function>\n- param-value may be multi-line. If it contains <, & or newline characters, wrap it in a CDATA block: <param name=\"param-name\"><![CDATA[...multi-line value...]]></param><|im_end|>\n<|im_start|>user\nwho are you?<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\nI'm not sure what you're asking about. Could you help me understand what you need?<|im_end|>\n<|im_start|>user\nwhat model are you?<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\nI'm not sure what you're asking about. Could you help me understand what you need?<|im_end|>\n<|im_start|>user\nCreate index.html with a simple Hello page and a button.<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n<function name=\"bash\"><param name=\"command\">ls /workspace</param></function><|im_end|>\n<|im_start|>user\n<tool_response>\n{\"name\":\"bash\",\"isError\":false,\"output\":\"README.md\\ncontext-check.txt\\nfirst-message.txt\\nhello.sh\\nindex.html\\nmissing.txt\\nnumbers.txt\\nrender-missing.txt\\nrender-notes.md\\nreport.md\\nrevenue.txt\\nsales.csv\\nsecret.txt\\ntodo\\nui-test.txt\\n\\nExit code: 0\"}\n</tool_response><|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n<function name=\"read\"><param name=\"path\">/workspace/index.html</param></function><|im_end|>\n<|im_start|>user\n<tool_response>\n{\"name\":\"read\",\"isError\":false,\"output\":\"<!doctype html><html><head><title>Hello</title></head><body><h1>Hello</h1><button>Click me</button></body></html>\"}\n</tool_response><|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n<function name=\"write\"><param name=\"path\">/workspace/index.html</param><param name=\"content\"><![CDATA[<!doctype html>\n<html>\n<head>\n  <title>Hello</title>\n</head>\n<body>\n  <h1>Hello</h1>\n  <button id=\"greet\">Click me</button>\n</body>\n</html>\n]]></param></function><|im_end|>\n<|im_start|>user\n<tool_response>\n{\"name\":\"write\",\"isError\":false,\"output\":\"Wrote /workspace/index.html\"}\n</tool_response><|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n<function name=\"read\"><param name=\"path\">/workspace/index.html</param></function><|im_end|>\n<|im_start|>user\n<tool_response>\n{\"name\":\"read\",\"isError\":false,\"output\":\"<!doctype html>\\n<html>\\n<head>\\n  <title>Hello</title>\\n</head>\\n<body>\\n  <h1>Hello</h1>\\n  <button id=\\\"greet\\\">Click me</button>\\n</body>\\n</html>\\n\"}\n</tool_response><|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\nDone. I've created `/workspace/index.html` with a simple Hello page and a button. The file contains:\n- `<h1>Hello</h1>` — a greeting heading\n- `<button id=\"greet\">Click me</button>` — a button you can click\n\nThe file is verified and ready.<|im_end|>\n<|im_start|>user\nadd tailwindcss to the html file<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n<function name=\"edit\"><param name=\"path\">/workspace/index.html</param><param name=\"oldText\"><![CDATA[<!doctype html>\n<html>\n<head>\n  <title>Hello</title>\n</head>\n<body>\n  <h1>Hello</h1>\n  <button id=\"greet\">Click me</button>\n</body>\n</html>]]></param><param name=\"newText\"><![CDATA[<!doctype html>\n<html>\n<head>\n  <title>Hello</title>\n  <link rel=\"stylesheet\" href=\"./tailwindcss.css\">\n</head>\n<body>\n  <h1>Hello</h1>\n  <button id=\"greet\">Click me</button>\n</body>\n</html>]]></param></function><|im_end|>\n<|im_start|>user\n<tool_response>\n{\"name\":\"edit\",\"isError\":false,\"output\":\"Edited /workspace/index.html\"}\n</tool_response><|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\nDone. I've added a Tailwind CSS link to the `<head>` of `/workspace/index.html` so the stylesheet will be loaded when the page renders.<|im_end|>\n<|im_start|>user\ncdn<|im_end|>\n<|im_start|>assistant\n<think>\n","ids":[0,130072,17261,220,2311,457,23840,33,280,23287,18495,6135,8844,310,285,5390,468,28511,350,16853,841,7884,317,23161,316,2437,6005,10166,35,10544,3860,280,5913,7371,448,280,5450,6254,1904,280,6980,7722,1248,350,3815,285,5390,13886,14293,447,317,1170,280,7722,33,1455,380,7722,1298,801,447,3053,1110,285,4219,350,51303,22529,47,978,93521,35,7838,1655,33,4900,33,30497,33,316,79885,35,22256,7722,8447,316,10361,44375,350,608,79885,7722,357,1230,1554,1628,47,280,13251,11016,401,4546,33,79967,33,1562,33,128278,33,10831,33,5071,96,33,580,102,33,5649,33,292,88,33,57535,33,34916,33,57718,104,33,316,11016,39669,350,3428,357,768,4014,33,21417,33,42802,20158,33,126170,33,12652,22522,33,448,11964,11740,14437,35,1408,25820,316,1397,7548,1170,79885,25820,33,5071,96,33,448,580,102,350,25516,1016,10166,1482,27460,902,35,4263,8897,10166,33,19837,285,1248,401,280,7722,35,82472,401,280,2871,41172,4219,350,220,24,34056,130063,2311,457,4312,401,1323,38446,2106,242,12,13,38896,32662,990,12,220,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,71811,923,458,32565,977,458,36192,280,79885,5913,310,978,93521,35,6207,4241,4546,33,79967,33,128278,33,10831,33,5071,96,33,580,102,33,5649,33,34916,33,57718,104,33,316,11016,39669,35,2552,4014,33,42802,20158,33,21417,33,126170,33,448,11964,58399,35,49339,29448,3297,21673,48,66089,316,5628,36459,1225,1455,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,22404,8086,458,39613,977,5163,22404,977,5163,2352,977,458,8094,923,458,32565,977,458,608,11016,5913,317,26697,677,60594,1534,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,1584,923,458,32565,977,458,15613,280,651,21899,34,45,2705,5450,35,7838,79885,1833,7975,8011,374,2090,10166,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,29843,113927,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,23452,923,458,32565,977,458,32341,448,8861,280,651,21899,34,45,2705,5450,35,25084,67395,457,5626,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,923,458,8803,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,4912,458,8803,977,5163,2352,977,458,8094,29843,113927,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,9069,923,458,32565,977,458,105677,678,4274,18649,304,2178,7156,401,1071,7156,310,280,651,21899,34,45,5450,35,2178,7156,1488,8810,6129,3097,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,923,458,937,7156,923,458,1897,7156,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,4912,458,937,7156,977,5163,2352,977,458,8094,4912,458,1897,7156,977,5163,2352,977,458,8094,29843,113927,13,130063,44053,14834,16088,990,34,1945,964,1455,5466,448,746,3958,35,1589,768,1323,8447,457,3921,33,1230,4219,12163,316,634,492,3580,890,242,18,3392,242,19,350,34,2471,11749,280,1323,33,2021,305,38896,2140,2106,242,18,3392,242,19,1685,990,18,2546,943,1288,35768,1822,20,2546,943,8291,35768,1822,8291,21402,21,19,220,34,2864,21402,964,365,5181,13579,35,1589,411,5722,527,33,865,448,1071,1424,9112,33,28399,411,310,280,9482,19117,5190,47,242,20,2546,943,8291,35768,10958,54873,6181,19117,80,1720,65131,13579,1886,1720,11638,51,21,130073,220,130072,8448,220,14495,457,447,52,130073,220,130072,130071,220,8,130063,9,130063,62,2077,492,3153,976,447,2093,10615,850,35,23546,447,1848,559,2409,976,447,1178,52,130073,220,130072,8448,220,6658,1327,457,447,52,130073,220,130072,130071,220,8,130063,9,130063,62,2077,492,3153,976,447,2093,10615,850,35,23546,447,1848,559,2409,976,447,1178,52,130073,220,130072,8448,220,32341,4992,8816,401,280,3644,37632,4926,316,280,12769,35,130073,220,130072,130071,220,8,130063,9,130063,18,2546,943,71811,1822,20,2546,943,22404,1822,6711,978,93521,21,19,130073,220,130072,8448,220,10,220,4945,2075,4441,71811,2131,293,12571,977,24330,721,15279,4441,121656,27521,3195,19876,38594,16524,3195,15331,2295,12066,16524,3195,59800,7599,3195,4539,8816,3195,71976,16524,3195,92731,16524,3195,20682,2295,35427,16524,3195,20682,34,35106,27521,3195,63109,27521,3195,284,8123,16524,3195,76930,19959,3195,53910,16524,3195,105,25117,47031,94,33064,16524,3195,3195,67605,5018,47,242,37,110191,11,130073,220,130072,130071,220,8,130063,9,130063,18,2546,943,1584,1822,20,2546,943,7346,1822,36,93521,31684,8816,21,19,130073,220,130072,8448,220,10,220,4945,2075,4441,1584,2131,293,12571,977,24330,721,15279,4441,94647,4969,330,1399,47240,332,6820,332,3561,332,12791,6738,11592,352,12791,503,3561,332,3680,332,93,38,6738,11592,352,93,38,332,19603,51,24477,559,352,19603,503,3680,503,6820,54759,1534,11,130073,220,130072,130071,220,8,130063,9,130063,18,2546,943,23452,1822,20,2546,943,7346,1822,36,93521,31684,8816,21,20,2546,943,8803,10958,54873,6181,19117,80,94647,4969,330,1399,47240,546,111403,546,49,3561,546,242,527,12791,6738,11592,352,12791,546,352,3561,546,127051,546,242,527,93,38,6738,11592,352,93,38,546,242,527,19603,3843,943,92,4299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are Pi, a coding assistant running entirely in the user's browser.\nUse your tools to inspect and change actual files. Never claim a command ran or a file changed without a successful tool result.\nWhen the user explicitly asks you to use a tool, call that tool even if you already know the answer.\nWorking directory: /workspace. Use read, write, edit, and bash. Keep tool calls and answers concise.\nThe bash tool is just-bash: a virtual shell with cat, ls, find, grep, sed, awk, jq, sort, wc, printf, pipes, redirects, and shell scripts.\nThere is no network, Python, Node.js, npm, package installation, or native binary execution. For arithmetic and data processing use bash arithmetic, awk, or jq.\nInspect files before editing them. After changing files, verify the result with a tool. Finish with a short factual answer."},{"role":"user","content":"who are you?"},{"role":"assistant","content":"I'm not sure what you're asking about. Could you help me understand what you need?","tool_calls":[]},{"role":"user","content":"what model are you?"},{"role":"assistant","content":"I'm not sure what you're asking about. Could you help me understand what you need?","tool_calls":[]},{"role":"user","content":"Create index.html with a simple Hello page and a button."},{"role":"assistant","content":"","tool_calls":[{"type":"function","function":{"name":"bash","arguments":{"command":"ls /workspace"}}}]},{"role":"tool","content":"{\"name\":\"bash\",\"isError\":false,\"output\":\"README.md\\ncontext-check.txt\\nfirst-message.txt\\nhello.sh\\nindex.html\\nmissing.txt\\nnumbers.txt\\nrender-missing.txt\\nrender-notes.md\\nreport.md\\nrevenue.txt\\nsales.csv\\nsecret.txt\\ntodo\\nui-test.txt\\n\\nExit code: 0\"}"},{"role":"assistant","content":"","tool_calls":[{"type":"function","function":{"name":"read","arguments":{"path":"/workspace/index.html"}}}]},{"role":"tool","content":"{\"name\":\"read\",\"isError\":false,\"output\":\"<!doctype html><html><head><title>Hello</title></head><body><h1>Hello</h1><button>Click me</button></body></html>\"}"},{"role":"assistant","content":"","tool_calls":[{"type":"function","function":{"name":"write","arguments":{"path":"/workspace/index.html","content":"<!doctype html>\n<html>\n<head>\n  <title>Hello</title>\n</head>\n<body>\n  <h1>Hello</h1>\n  <button id=\"greet\">Click me</button>\n</body>\n</html>\n"}}}]},{"role":"tool","content":"{\"name\":\"write\",\"isError\":false,\"output\":\"Wrote /workspace/index.html\"}"},{"role":"assistant","content":"","tool_calls":[{"type":"function","function":{"name":"read","arguments":{"path":"/workspace/index.html"}}}]},{"role":"tool","content":"{\"name\":\"read\",\"isError\":false,\"output\":\"<!doctype html>\\n<html>\\n<head>\\n  <title>Hello</title>\\n</head>\\n<body>\\n  <h1>Hello</h1>\\n  <button id=\\\"greet\\\">Click me</button>\\n</body>\\n</html>\\n\"}"},{"role":"assistant","content":"Done. I've created `/workspace/index.html` with a simple Hello page and a button. The file contains:\n- `<h1>Hello</h1>` — a greeting heading\n- `<button id=\"greet\">Click me</button>` — a button you can click\n\nThe file is verified and ready.","tool_calls":[]},{"role":"user","content":"add tailwindcss to the html file"},{"role":"assistant","content":"","tool_calls":[{"type":"function","function":{"name":"edit","arguments":{"path":"/workspace/index.html","oldText":"<!doctype html>\n<html>\n<head>\n  <title>Hello</title>\n</head>\n<body>\n  <h1>Hello</h1>\n  <button id=\"greet\">Click me</button>\n</body>\n</html>","newText":"<!doctype html>\n<html>\n<head>\n  <title>Hello</title>\n  <link rel=\"stylesheet\" href=\"./tailwindcss.css\">\n</head>\n<body>\n  <h1>Hello</h1>\n  <button id=\"greet\">Click me</button>\n</body>\n</html>"}}}]},{"role":"tool","content":"{\"name\":\"edit\",\"isError\":false,\"output\":\"Edited /workspace/index.html\"}"},{"role":"assistant","content":"Done. I've added a Tailwind CSS link to the `<head>` of `/workspace/index.html` so the stylesheet will be loaded when the page renders.","tool_calls":[]},{"role":"user","content":"cdn"}],"tools":[{"type":"function","function":{"name":"bash","description":"Run a bash command in /workspace. Supports cat, ls, grep, sed, awk, jq, sort, pipes, redirects, and shell scripts. No network, Node.js, Python, npm, or native binaries. Files persist across commands; cd and variables reset each call.","parameters":{"type":"object","required":["command"],"properties":{"command":{"type":"string","description":"The shell command to execute."}}}}},{"type":"function","function":{"name":"read","description":"Read a UTF-8 text file. Use bash head/grep for large files.","parameters":{"type":"object","required":["path"],"properties":{"path":{"type":"string"}}}}},{"type":"function","function":{"name":"write","description":"Create or replace a UTF-8 text file. Parent directories are created.","parameters":{"type":"object","required":["path","content"],"properties":{"path":{"type":"string"},"content":{"type":"string"}}}}},{"type":"function","function":{"name":"edit","description":"Replace one exact occurrence of oldText with newText in a UTF-8 file. oldText must match exactly once.","parameters":{"type":"object","required":["path","oldText","newText"],"properties":{"path":{"type":"string"},"oldText":{"type":"string"},"newText":{"type":"string"}}}}}],"prompts":{"no-think":{"text":"<s><|im_start|>system\nYou are Pi, a coding assistant running entirely in the user's browser.\nUse your tools to inspect and change actual files. Never claim a command ran or a file changed without a successful tool result.\nWhen the user explicitly asks you to use a tool, call that tool even if you already know the answer.\nWorking directory: /workspace. Use read, write, edit, and bash. Keep tool calls and answers concise.\nThe bash tool is just-bash: a virtual shell with cat, ls, find, grep, sed, awk, jq, sort, wc, printf, pipes, redirects, and shell scripts.\nThere is no network, Python, Node.js, npm, package installation, or native binary execution. For arithmetic and data processing use bash arithmetic, awk, or jq.\nInspect files before editing them. After changing files, verify the result with a tool. Finish with a short factual answer.\n\n# Tools\n\nYou are provided with function signatures within <tools></tools> XML tags:\n<tools>\n{\"type\": \"function\", \"function\": {\"name\": \"bash\", \"description\": \"Run a bash command in /workspace. Supports cat, ls, grep, sed, awk, jq, sort, pipes, redirects, and shell scripts. No network, Node.js, Python, npm, or native binaries. Files persist across commands; cd and variables reset each call.\", \"parameters\": {\"type\": \"object\", \"required\": [\"command\"], \"properties\": {\"command\": {\"type\": \"string\", \"description\": \"The shell command to execute.\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"read\", \"description\": \"Read a UTF-8 text file. Use bash head/grep for large files.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\"], \"properties\": {\"path\": {\"type\": \"string\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"write\", \"description\": \"Create or replace a UTF-8 text file. Parent directories are created.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\", \"content\"], \"properties\": {\"path\": {\"type\": \"string\"}, \"content\": {\"type\": \"string\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"edit\", \"description\": \"Replace one exact occurrence of oldText with newText in a UTF-8 file. oldText must match exactly once.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\", \"oldText\", \"newText\"], \"properties\": {\"path\": {\"type\": \"string\"}, \"oldText\": {\"type\": \"string\"}, \"newText\": {\"type\": \"string\"}}}}}\n</tools>\n\nTool usage guidelines:\n- You may call zero or more functions. If no function calls are needed, just answer normally and do not include any <function ... </function>.\n- When calling a function, return an XML object within <function ... </function> using:\n<function name=\"function-name\"><param name=\"param-name\">param-value</param></function>\n- param-value may be multi-line. If it contains <, & or newline characters, wrap it in a CDATA block: <param name=\"param-name\"><![CDATA[...multi-line value...]]></param><|im_end|>\n<|im_start|>user\nwho are you?<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\nI'm not sure what you're asking about. Could you help me understand what you need?<|im_end|>\n<|im_start|>user\nwhat model are you?<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\nI'm not sure what you're asking about. Could you help me understand what you need?<|im_end|>\n<|im_start|>user\nCreate index.html with a simple Hello page and a button.<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n<function name=\"bash\"><param name=\"command\">ls /workspace</param></function><|im_end|>\n<|im_start|>user\n<tool_response>\n{\"name\":\"bash\",\"isError\":false,\"output\":\"README.md\\ncontext-check.txt\\nfirst-message.txt\\nhello.sh\\nindex.html\\nmissing.txt\\nnumbers.txt\\nrender-missing.txt\\nrender-notes.md\\nreport.md\\nrevenue.txt\\nsales.csv\\nsecret.txt\\ntodo\\nui-test.txt\\n\\nExit code: 0\"}\n</tool_response><|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n<function name=\"read\"><param name=\"path\">/workspace/index.html</param></function><|im_end|>\n<|im_start|>user\n<tool_response>\n{\"name\":\"read\",\"isError\":false,\"output\":\"<!doctype html><html><head><title>Hello</title></head><body><h1>Hello</h1><button>Click me</button></body></html>\"}\n</tool_response><|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n<function name=\"write\"><param name=\"path\">/workspace/index.html</param><param name=\"content\"><![CDATA[<!doctype html>\n<html>\n<head>\n  <title>Hello</title>\n</head>\n<body>\n  <h1>Hello</h1>\n  <button id=\"greet\">Click me</button>\n</body>\n</html>\n]]></param></function><|im_end|>\n<|im_start|>user\n<tool_response>\n{\"name\":\"write\",\"isError\":false,\"output\":\"Wrote /workspace/index.html\"}\n</tool_response><|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n<function name=\"read\"><param name=\"path\">/workspace/index.html</param></function><|im_end|>\n<|im_start|>user\n<tool_response>\n{\"name\":\"read\",\"isError\":false,\"output\":\"<!doctype html>\\n<html>\\n<head>\\n  <title>Hello</title>\\n</head>\\n<body>\\n  <h1>Hello</h1>\\n  <button id=\\\"greet\\\">Click me</button>\\n</body>\\n</html>\\n\"}\n</tool_response><|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\nDone. I've created `/workspace/index.html` with a simple Hello page and a button. The file contains:\n- `<h1>Hello</h1>` — a greeting heading\n- `<button id=\"greet\">Click me</button>` — a button you can click\n\nThe file is verified and ready.<|im_end|>\n<|im_start|>user\nadd tailwindcss to the html file<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n<function name=\"edit\"><param name=\"path\">/workspace/index.html</param><param name=\"oldText\"><![CDATA[<!doctype html>\n<html>\n<head>\n  <title>Hello</title>\n</head>\n<body>\n  <h1>Hello</h1>\n  <button id=\"greet\">Click me</button>\n</body>\n</html>]]></param><param name=\"newText\"><![CDATA[<!doctype html>\n<html>\n<head>\n  <title>Hello</title>\n  <link rel=\"stylesheet\" href=\"./tailwindcss.css\">\n</head>\n<body>\n  <h1>Hello</h1>\n  <button id=\"greet\">Click me</button>\n</body>\n</html>]]></param></function><|im_end|>\n<|im_start|>user\n<tool_response>\n{\"name\":\"edit\",\"isError\":false,\"output\":\"Edited /workspace/index.html\"}\n</tool_response><|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\nDone. I've added a Tailwind CSS link to the `<head>` of `/workspace/index.html` so the stylesheet will be loaded when the page renders.<|im_end|>\n<|im_start|>user\ncdn<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n","ids":[0,130072,17261,220,2311,457,23840,33,280,23287,18495,6135,8844,310,285,5390,468,28511,350,16853,841,7884,317,23161,316,2437,6005,10166,35,10544,3860,280,5913,7371,448,280,5450,6254,1904,280,6980,7722,1248,350,3815,285,5390,13886,14293,447,317,1170,280,7722,33,1455,380,7722,1298,801,447,3053,1110,285,4219,350,51303,22529,47,978,93521,35,7838,1655,33,4900,33,30497,33,316,79885,35,22256,7722,8447,316,10361,44375,350,608,79885,7722,357,1230,1554,1628,47,280,13251,11016,401,4546,33,79967,33,1562,33,128278,33,10831,33,5071,96,33,580,102,33,5649,33,292,88,33,57535,33,34916,33,57718,104,33,316,11016,39669,350,3428,357,768,4014,33,21417,33,42802,20158,33,126170,33,12652,22522,33,448,11964,11740,14437,35,1408,25820,316,1397,7548,1170,79885,25820,33,5071,96,33,448,580,102,350,25516,1016,10166,1482,27460,902,35,4263,8897,10166,33,19837,285,1248,401,280,7722,35,82472,401,280,2871,41172,4219,350,220,24,34056,130063,2311,457,4312,401,1323,38446,2106,242,12,13,38896,32662,990,12,220,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,71811,923,458,32565,977,458,36192,280,79885,5913,310,978,93521,35,6207,4241,4546,33,79967,33,128278,33,10831,33,5071,96,33,580,102,33,5649,33,34916,33,57718,104,33,316,11016,39669,35,2552,4014,33,42802,20158,33,21417,33,126170,33,448,11964,58399,35,49339,29448,3297,21673,48,66089,316,5628,36459,1225,1455,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,22404,8086,458,39613,977,5163,22404,977,5163,2352,977,458,8094,923,458,32565,977,458,608,11016,5913,317,26697,677,60594,1534,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,1584,923,458,32565,977,458,15613,280,651,21899,34,45,2705,5450,35,7838,79885,1833,7975,8011,374,2090,10166,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,29843,113927,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,23452,923,458,32565,977,458,32341,448,8861,280,651,21899,34,45,2705,5450,35,25084,67395,457,5626,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,923,458,8803,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,4912,458,8803,977,5163,2352,977,458,8094,29843,113927,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,9069,923,458,32565,977,458,105677,678,4274,18649,304,2178,7156,401,1071,7156,310,280,651,21899,34,45,5450,35,2178,7156,1488,8810,6129,3097,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,923,458,937,7156,923,458,1897,7156,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,4912,458,937,7156,977,5163,2352,977,458,8094,4912,458,1897,7156,977,5163,2352,977,458,8094,29843,113927,13,130063,44053,14834,16088,990,34,1945,964,1455,5466,448,746,3958,35,1589,768,1323,8447,457,3921,33,1230,4219,12163,316,634,492,3580,890,242,18,3392,242,19,350,34,2471,11749,280,1323,33,2021,305,38896,2140,2106,242,18,3392,242,19,1685,990,18,2546,943,1288,35768,1822,20,2546,943,8291,35768,1822,8291,21402,21,19,220,34,2864,21402,964,365,5181,13579,35,1589,411,5722,527,33,865,448,1071,1424,9112,33,28399,411,310,280,9482,19117,5190,47,242,20,2546,943,8291,35768,10958,54873,6181,19117,80,1720,65131,13579,1886,1720,11638,51,21,130073,220,130072,8448,220,14495,457,447,52,130073,220,130072,130071,220,8,130063,9,130063,62,2077,492,3153,976,447,2093,10615,850,35,23546,447,1848,559,2409,976,447,1178,52,130073,220,130072,8448,220,6658,1327,457,447,52,130073,220,130072,130071,220,8,130063,9,130063,62,2077,492,3153,976,447,2093,10615,850,35,23546,447,1848,559,2409,976,447,1178,52,130073,220,130072,8448,220,32341,4992,8816,401,280,3644,37632,4926,316,280,12769,35,130073,220,130072,130071,220,8,130063,9,130063,18,2546,943,71811,1822,20,2546,943,22404,1822,6711,978,93521,21,19,130073,220,130072,8448,220,10,220,4945,2075,4441,71811,2131,293,12571,977,24330,721,15279,4441,121656,27521,3195,19876,38594,16524,3195,15331,2295,12066,16524,3195,59800,7599,3195,4539,8816,3195,71976,16524,3195,92731,16524,3195,20682,2295,35427,16524,3195,20682,34,35106,27521,3195,63109,27521,3195,284,8123,16524,3195,76930,19959,3195,53910,16524,3195,105,25117,47031,94,33064,16524,3195,3195,67605,5018,47,242,37,110191,11,130073,220,130072,130071,220,8,130063,9,130063,18,2546,943,1584,1822,20,2546,943,7346,1822,36,93521,31684,8816,21,19,130073,220,130072,8448,220,10,220,4945,2075,4441,1584,2131,293,12571,977,24330,721,15279,4441,94647,4969,330,1399,47240,332,6820,332,3561,332,12791,6738,11592,352,12791,503,3561,332,3680,332,93,38,6738,11592,352,93,38,332,19603,51,24477,559,352,19603,503,3680,503,6820,54759,1534,11,130073,220,130072,130071,220,8,130063,9,130063,18,2546,943,23452,1822,20,2546,943,7346,1822,36,93521,31684,8816,21,20,2546,943,8803,10958,54873,6181,19117,80,94647,4969,330,1399,47240,546,111403,546,49,3561,546,242,527,12791,6738,11592,352,12791,546,352,3561,546,127051,546,242,527,93,38,6738,11592,352,93,38,546,242,527,19603,38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are Pi, a coding assistant running entirely in the user's browser.\nUse your tools to inspect and change actual files. Never claim a command ran or a file changed without a successful tool result.\nWhen the user explicitly asks you to use a tool, call that tool even if you already know the answer.\nWorking directory: /workspace. Use read, write, edit, and bash. Keep tool calls and answers concise.\nThe bash tool is just-bash: a virtual shell with cat, ls, find, grep, sed, awk, jq, sort, wc, printf, pipes, redirects, and shell scripts.\nThere is no network, Python, Node.js, npm, package installation, or native binary execution. For arithmetic and data processing use bash arithmetic, awk, or jq.\nInspect files before editing them. After changing files, verify the result with a tool. Finish with a short factual answer.\n\n# Tools\n\nYou are provided with function signatures within <tools></tools> XML tags:\n<tools>\n{\"type\": \"function\", \"function\": {\"name\": \"bash\", \"description\": \"Run a bash command in /workspace. Supports cat, ls, grep, sed, awk, jq, sort, pipes, redirects, and shell scripts. No network, Node.js, Python, npm, or native binaries. Files persist across commands; cd and variables reset each call.\", \"parameters\": {\"type\": \"object\", \"required\": [\"command\"], \"properties\": {\"command\": {\"type\": \"string\", \"description\": \"The shell command to execute.\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"read\", \"description\": \"Read a UTF-8 text file. Use bash head/grep for large files.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\"], \"properties\": {\"path\": {\"type\": \"string\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"write\", \"description\": \"Create or replace a UTF-8 text file. Parent directories are created.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\", \"content\"], \"properties\": {\"path\": {\"type\": \"string\"}, \"content\": {\"type\": \"string\"}}}}}\n{\"type\": \"function\", \"function\": {\"name\": \"edit\", \"description\": \"Replace one exact occurrence of oldText with newText in a UTF-8 file. oldText must match exactly once.\", \"parameters\": {\"type\": \"object\", \"required\": [\"path\", \"oldText\", \"newText\"], \"properties\": {\"path\": {\"type\": \"string\"}, \"oldText\": {\"type\": \"string\"}, \"newText\": {\"type\": \"string\"}}}}}\n</tools>\n\nTool usage guidelines:\n- You may call zero or more functions. If no function calls are needed, just answer normally and do not include any <function ... </function>.\n- When calling a function, return an XML object within <function ... </function> using:\n<function name=\"function-name\"><param name=\"param-name\">param-value</param></function>\n- param-value may be multi-line. If it contains <, & or newline characters, wrap it in a CDATA block: <param name=\"param-name\"><![CDATA[...multi-line value...]]></param><|im_end|>\n<|im_start|>user\nwho are you?<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\nI'm not sure what you're asking about. Could you help me understand what you need?<|im_end|>\n<|im_start|>user\nwhat model are you?<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\nI'm not sure what you're asking about. Could you help me understand what you need?<|im_end|>\n<|im_start|>user\nCreate index.html with a simple Hello page and a button.<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n<function name=\"bash\"><param name=\"command\">ls /workspace</param></function><|im_end|>\n<|im_start|>user\n<tool_response>\n{\"name\":\"bash\",\"isError\":false,\"output\":\"README.md\\ncontext-check.txt\\nfirst-message.txt\\nhello.sh\\nindex.html\\nmissing.txt\\nnumbers.txt\\nrender-missing.txt\\nrender-notes.md\\nreport.md\\nrevenue.txt\\nsales.csv\\nsecret.txt\\ntodo\\nui-test.txt\\n\\nExit code: 0\"}\n</tool_response><|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n<function name=\"read\"><param name=\"path\">/workspace/index.html</param></function><|im_end|>\n<|im_start|>user\n<tool_response>\n{\"name\":\"read\",\"isError\":false,\"output\":\"<!doctype html><html><head><title>Hello</title></head><body><h1>Hello</h1><button>Click me</button></body></html>\"}\n</tool_response><|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n<function name=\"write\"><param name=\"path\">/workspace/index.html</param><param name=\"content\"><![CDATA[<!doctype html>\n<html>\n<head>\n  <title>Hello</title>\n</head>\n<body>\n  <h1>Hello</h1>\n  <button id=\"greet\">Click me</button>\n</body>\n</html>\n]]></param></function><|im_end|>\n<|im_start|>user\n<tool_response>\n{\"name\":\"write\",\"isError\":false,\"output\":\"Wrote /workspace/index.html\"}\n</tool_response><|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n<function name=\"read\"><param name=\"path\">/workspace/index.html</param></function><|im_end|>\n<|im_start|>user\n<tool_response>\n{\"name\":\"read\",\"isError\":false,\"output\":\"<!doctype html>\\n<html>\\n<head>\\n  <title>Hello</title>\\n</head>\\n<body>\\n  <h1>Hello</h1>\\n  <button id=\\\"greet\\\">Click me</button>\\n</body>\\n</html>\\n\"}\n</tool_response><|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\nDone. I've created `/workspace/index.html` with a simple Hello page and a button. The file contains:\n- `<h1>Hello</h1>` — a greeting heading\n- `<button id=\"greet\">Click me</button>` — a button you can click\n\nThe file is verified and ready.<|im_end|>\n<|im_start|>user\nadd tailwindcss to the html file<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n<function name=\"edit\"><param name=\"path\">/workspace/index.html</param><param name=\"oldText\"><![CDATA[<!doctype html>\n<html>\n<head>\n  <title>Hello</title>\n</head>\n<body>\n  <h1>Hello</h1>\n  <button id=\"greet\">Click me</button>\n</body>\n</html>]]></param><param name=\"newText\"><![CDATA[<!doctype html>\n<html>\n<head>\n  <title>Hello</title>\n  <link rel=\"stylesheet\" href=\"./tailwindcss.css\">\n</head>\n<body>\n  <h1>Hello</h1>\n  <button id=\"greet\">Click me</button>\n</body>\n</html>]]></param></function><|im_end|>\n<|im_start|>user\n<tool_response>\n{\"name\":\"edit\",\"isError\":false,\"output\":\"Edited /workspace/index.html\"}\n</tool_response><|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\nDone. I've added a Tailwind CSS link to the `<head>` of `/workspace/index.html` so the stylesheet will be loaded when the page renders.<|im_end|>\n<|im_start|>user\ncdn<|im_end|>\n<|im_start|>assistant\n<think>\n","ids":[0,130072,17261,220,2311,457,23840,33,280,23287,18495,6135,8844,310,285,5390,468,28511,350,16853,841,7884,317,23161,316,2437,6005,10166,35,10544,3860,280,5913,7371,448,280,5450,6254,1904,280,6980,7722,1248,350,3815,285,5390,13886,14293,447,317,1170,280,7722,33,1455,380,7722,1298,801,447,3053,1110,285,4219,350,51303,22529,47,978,93521,35,7838,1655,33,4900,33,30497,33,316,79885,35,22256,7722,8447,316,10361,44375,350,608,79885,7722,357,1230,1554,1628,47,280,13251,11016,401,4546,33,79967,33,1562,33,128278,33,10831,33,5071,96,33,580,102,33,5649,33,292,88,33,57535,33,34916,33,57718,104,33,316,11016,39669,350,3428,357,768,4014,33,21417,33,42802,20158,33,126170,33,12652,22522,33,448,11964,11740,14437,35,1408,25820,316,1397,7548,1170,79885,25820,33,5071,96,33,448,580,102,350,25516,1016,10166,1482,27460,902,35,4263,8897,10166,33,19837,285,1248,401,280,7722,35,82472,401,280,2871,41172,4219,350,220,24,34056,130063,2311,457,4312,401,1323,38446,2106,242,12,13,38896,32662,990,12,220,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,71811,923,458,32565,977,458,36192,280,79885,5913,310,978,93521,35,6207,4241,4546,33,79967,33,128278,33,10831,33,5071,96,33,580,102,33,5649,33,34916,33,57718,104,33,316,11016,39669,35,2552,4014,33,42802,20158,33,21417,33,126170,33,448,11964,58399,35,49339,29448,3297,21673,48,66089,316,5628,36459,1225,1455,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,22404,8086,458,39613,977,5163,22404,977,5163,2352,977,458,8094,923,458,32565,977,458,608,11016,5913,317,26697,677,60594,1534,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,1584,923,458,32565,977,458,15613,280,651,21899,34,45,2705,5450,35,7838,79885,1833,7975,8011,374,2090,10166,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,29843,113927,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,23452,923,458,32565,977,458,32341,448,8861,280,651,21899,34,45,2705,5450,35,25084,67395,457,5626,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,923,458,8803,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,4912,458,8803,977,5163,2352,977,458,8094,29843,113927,4945,2352,977,458,1288,923,458,1288,977,5163,2075,977,458,9069,923,458,32565,977,458,105677,678,4274,18649,304,2178,7156,401,1071,7156,310,280,651,21899,34,45,5450,35,2178,7156,1488,8810,6129,3097,36778,458,22673,977,5163,2352,977,458,9242,923,458,42053,977,21903,7346,923,458,937,7156,923,458,1897,7156,8086,458,39613,977,5163,7346,977,5163,2352,977,458,8094,4912,458,937,7156,977,5163,2352,977,458,8094,4912,458,1897,7156,977,5163,2352,977,458,8094,29843,113927,13,130063,44053,14834,16088,990,34,1945,964,1455,5466,448,746,3958,35,1589,768,1323,8447,457,3921,33,1230,4219,12163,316,634,492,3580,890,242,18,3392,242,19,350,34,2471,11749,280,1323,33,2021,305,38896,2140,2106,242,18,3392,242,19,1685,990,18,2546,943,1288,35768,1822,20,2546,943,8291,35768,1822,8291,21402,21,19,220,34,2864,21402,964,365,5181,13579,35,1589,411,5722,527,33,865,448,1071,1424,9112,33,28399,411,310,280,9482,19117,5190,47,242,20,2546,943,8291,35768,10958,54873,6181,19117,80,1720,65131,13579,1886,1720,11638,51,21,130073,220,130072,8448,220,14495,457,447,52,130073,220,130072,130071,220,8,130063,9,130063,62,2077,492,3153,976,447,2093,10615,850,35,23546,447,1848,559,2409,976,447,1178,52,130073,220,130072,8448,220,6658,1327,457,447,52,130073,220,130072,130071,220,8,130063,9,130063,62,2077,492,3153,976,447,2093,10615,850,35,23546,447,1848,559,2409,976,447,1178,52,130073,220,130072,8448,220,32341,4992,8816,401,280,3644,37632,4926,316,280,12769,35,130073,220,130072,130071,220,8,130063,9,130063,18,2546,943,71811,1822,20,2546,943,22404,1822,6711,978,93521,21,19,130073,220,130072,8448,220,10,220,4945,2075,4441,71811,2131,293,12571,977,24330,721,15279,4441,121656,27521,3195,19876,38594,16524,3195,15331,2295,12066,16524,3195,59800,7599,3195,4539,8816,3195,71976,16524,3195,92731,16524,3195,20682,2295,35427,16524,3195,20682,34,35106,27521,3195,63109,27521,3195,284,8123,16524,3195,76930,19959,3195,53910,16524,3195,105,25117,47031,94,33064,16524,3195,3195,67605,5018,47,242,37,110191,11,130073,220,130072,130071,220,8,130063,9,130063,18,2546,943,1584,1822,20,2546,943,7346,1822,36,93521,31684,8816,21,19,130073,220,130072,8448,220,10,220,4945,2075,4441,1584,2131,293,12571,977,24330,721,15279,4441,94647,4969,330,1399,47240,332,6820,332,3561,332,12791,6738,11592,352,12791,503,3561,332,3680,332,93,38,6738,11592,352,93,38,332,19603,51,24477,559,352,19603,503,3680,503,6820,54759,1534,11,130073,220,130072,130071,220,8,130063,9,130063,18,2546,943,23452,1822,20,2546,943,7346,1822,36,93521,31684,8816,21,20,2546,943,8803,10958,54873,6181,19117,80,94647,4969,330,1399,47240,546,111403,546,49,3561,546,242,527,12791,6738,11592,352,12791,546,352,3561,546,127051,546,242,527,93,38,6738,11592,352,93,38,546,242,527,19603,3843,943,92,4299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research/multiturn-audit/mixed_head.py

@@ -0,0 +1,39 @@
+"""Local ablation: keep the output projection in FP16; leave all decoder weights unchanged."""
+from pathlib import Path
+import os,json
+import numpy as np
+import onnx
+from onnx import numpy_helper,helper,external_data_helper
+from safetensors import safe_open
+src=Path('models/minicpm5-webgpu');out=Path('models/minicpm5-head-fp16')
+out.mkdir(exist_ok=True);(out/'onnx').mkdir(exist_ok=True)
+for path in src.rglob('*'):
+ if not path.is_file() or path.suffix=='.onnx':continue
+ dest=out/path.relative_to(src)
+ if not dest.exists():os.link(path,dest)
+m=onnx.load(src/'onnx/model_q4f16.onnx',load_external_data=False)
+old=next(n for n in m.graph.node if n.name=='/lm_head/MatMul_Q4')
+unused=set(old.input[1:]);keep=[t for t in m.graph.initializer if t.name not in unused]
+del m.graph.initializer[:];m.graph.initializer.extend(keep)
+with safe_open('models/source/model-00000-of-00001.safetensors',framework='pt') as source:
+ weight=source.get_tensor('lm_head.weight').half().numpy()
+nodes=[];outputs=[];offset=0
+with (out/'onnx/model_q4f16.onnx_data_7').open('wb') as data:
+ for i,part in enumerate(np.split(weight,4,axis=0)):
+  name=f'head_fp16_{i}';tensor=numpy_helper.from_array(np.ascontiguousarray(part.T),name)
+  length=len(tensor.raw_data);data.write(tensor.raw_data)
+  external_data_helper.set_external_data(tensor,'model_q4f16.onnx_data_7',offset=offset,length=length)
+  tensor.ClearField('raw_data');offset+=length;m.graph.initializer.append(tensor)
+  result=f'/head_fp16_{i}/output';outputs.append(result)
+  nodes.append(helper.make_node('MatMul',[old.input[0],name],[result],name=f'/head_fp16_{i}/MatMul'))
+nodes.append(helper.make_node('Concat',outputs,list(old.output),axis=-1,name='/head_fp16/Concat'))
+new=[]
+for n in m.graph.node:new.extend(nodes if n.name==old.name else [n])
+del m.graph.node[:];m.graph.node.extend(new)
+onnx.save(m,out/'onnx/model_q4f16.onnx')
+config=json.loads((src/'config.json').read_text())
+config['transformers.js_config']['use_external_data_format']['model_q4f16.onnx']=8
+# Replace the experimental hardlink, never write through into the base model.
+(out/'config.new.json').write_text(json.dumps(config,indent=2))
+os.replace(out/'config.new.json',out/'config.json')
+print('Wrote local mixed-head ablation. Extra bytes:',offset)

research/multiturn-audit/probe-runner.mjs

@@ -0,0 +1,19 @@
+// Run against a locally built app and tests/model-probe.mjs bundled into dist/audit.
+import {chromium} from '../../app/node_modules/playwright/index.mjs';
+import fs from 'node:fs/promises';
+const root=process.cwd();const label=process.argv[2]??'mixed-head';
+const specs=JSON.parse(await fs.readFile(`research/multiturn-audit/${label}-spec.json`,'utf8'));
+const context=await chromium.launchPersistentContext(`${root}/validation/agent-browser-profile`,{executablePath:'/usr/bin/chromium',headless:true,args:['--enable-unsafe-webgpu','--use-angle=vulkan','--enable-features=Vulkan','--disable-vulkan-surface']});
+const page=await context.newPage();const results={date:new Date().toISOString(),...specs,runs:[]};
+const cdp=await context.newCDPSession(page);await cdp.send('Network.enable');await cdp.send('Network.setCacheDisabled',{cacheDisabled:true});
+page.on('request',r=>{if(/config\.json|onnx_data_7/.test(r.url()))console.log('request',r.url())});
+try{
+ await page.goto('http://127.0.0.1:4173/?source=local');
+ results.device=await page.evaluate(async opts=>{window.probe=await import('/audit/probe.js');return window.probe.loadProbe(opts)},specs.load);
+ console.log('loaded',JSON.stringify(results.device));
+ for(const c of specs.cases){
+  const result=await page.evaluate(c=>window.probe.runProbe(c.fixture,c.options),c);results.runs.push(result);
+  await fs.writeFile(`research/multiturn-audit/${label}-results.json`,JSON.stringify(results,null,2));
+  console.log(JSON.stringify({...result,ids:undefined,raw:result.raw.split('</think>').at(-1).slice(-500)}));
+ }
+}catch(e){results.error=e.stack;throw e}finally{await fs.writeFile(`research/multiturn-audit/${label}-results.json`,JSON.stringify(results,null,2));await context.close()}

research/multiturn-audit/q4-results.json

@@ -0,0 +1,2138 @@
+[
+  {
+    "case": "identity",
+    "thinking": false,
+    "sample": false,
+    "penalty": 1,
+    "seed": 42,
+    "input_tokens": 707,
+    "output_tokens": 20,
+    "elapsed_s": 1.1505,
+    "ended": true,
+    "raw": "I'm not sure what you're asking about. Could you help me understand what you need?<|im_end|>",
+    "ids": [
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+  },
+  {
+    "case": "identity",
+    "thinking": true,
+    "sample": false,
+    "penalty": 1,
+    "seed": 42,
+    "input_tokens": 705,
+    "output_tokens": 81,
+    "elapsed_s": 2.001199999988079,
+    "ended": true,
+    "raw": "The user is asking \"who are you?\" - this is a simple question about my identity. I should use the read tool to check the workspace and then provide a factual answer based on what I know.\n\nLet me first check the workspace to see what files are there.\n</think>\n\n<function name=\"bash\"><param name=\"command\"><![CDATA[pwd && ls -la]]></param></function><|im_end|>",
+    "ids": [
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+  },
+  {
+    "case": "identity",
+    "thinking": true,
+    "sample": true,
+    "penalty": 1,
+    "seed": 42,
+    "input_tokens": 705,
+    "output_tokens": 91,
+    "elapsed_s": 2.8705,
+    "ended": true,
+    "raw": "The user is asking \"who are you?\" - this is a simple question about my identity. I should answer based on what I know from the system message.\n</think>\n\nI'm a coding assistant running in the user's browser. I have access to the workspace files, which are the files under `/workspace` in the `file:///workspace` directory on your local file system.\n\nIs there something specific you'd like me to help with?<|im_end|>",
+    "ids": [
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+  },
+  {
+    "case": "identity",
+    "thinking": true,
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+    "raw": "Okay, the user is asking about \"cdn\". Let me check the current state of the file to see if there's any reference to CDN or if they want me to add something related to CDN. The previous steps were about creating an HTML file with Tailwind CSS. The user might be asking if there's a CDN link or if they need to add one. Let me read the current file to see what's there.\n\nWait, the last action was adding a link to tailwindcss.css. The user says \"cdn\". Maybe they want to know if the current setup uses a CDN, or they want to add a CDN link. But the previous edit added a local link. Let me check the current file content first.\n\nWait, the tool result from the last edit was successful. Let me read the file again to confirm. But the user's message is just \"cdn\". Hmm, maybe they want me to add a CDN link for Tailwind CSS? Or perhaps they're asking about the current setup. Wait, the previous step added a link to \"./tailwindcss.css\", which is a local file. If the user wants a CDN version, I should check if there's a tailwindcss.css file. But the user might be confused. Let me read the current file to see what's there.\n\nWait, the current file has the link to tailwindcss.css. If the user wants a CDN, maybe they want to replace that with a CDN link. But the user's message is vague. Wait, the previous steps: the user wanted to add Tailwind CSS to the HTML file. The assistant added a link to \"./tailwindcss.css\". Now the user says \"cdn\". Maybe they want to know if there's a CDN option, or they want to change it. But the assistant should use tools to inspect. Wait, the user might be asking to add a CDN link. But the current file has a local link. Let me check the current file content first.\n\nWait, the previous edit added the link. Let me read the current file to see. Then decide. But the user's message is just \"cdn\". The assistant should probably ask for clarification, but the tools can be used. Wait, the instructions say to use tools to inspect and change. So first, read the current file, then maybe the user wants to replace the local link with a CDN one. But the user might have a specific request. Wait, the previous action was adding the link. The user now says \"cdn\". Maybe they want to know if the current setup uses a CDN. But the current link is local. So perhaps the user wants to change it to a CDN. But without more info, the assistant should check the file. Wait, the assistant should use the read tool to see the current state. Let me do that.\n</think>\n\n<function name=\"read\"><param name=\"path\">/workspace/index.html</param></function><|im_end|>",
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+    "raw": "Okay, the user is asking \"cdn\". Let me figure out what they need.\n\nLooking at the previous steps: we created index.html with a simple Hello page and a button. Then we added Tailwind CSS to the HTML file by linking to \"./tailwindcss.css\". Now the user says \"cdn\".\n\nHmm, maybe they want to make sure that Tailwind CSS uses a CDN instead of a local file? Wait, but the current edit linked to \"./tailwindcss.css\" which is a local file. But the user said \"cdn\"—maybe they want to change it to a CDN version?\n\nWait, the tool available is only the ones listed. The user might be confused. Wait, the previous action was adding tailwindcss to the html file. The user now says \"cdn\"—maybe they want to update the link to use a CDN URL instead of a local file?\n\nBut in the current state, the index.html has `<link rel=\"stylesheet\" href=\"./tailwindcss.css\">`. The user might want to point it to a CDN like `https://tailwindcss.com/...'` or similar. However, since there's no network access and no external file, maybe they want to remove the local file dependency and use a CDN link. But the user's command is vague. Wait, perhaps they want to add a CDN link somewhere else? Or maybe they made a mistake.\n\nWait, the user's last action was adding Tailwind CSS to the html file (via edit). Now they say \"cdn\". Let me check the current content of index.html.\n\nWait, I should first read the current index.html to see what's there. But the user might mean something specific. Let me verify the current file content.\n\nWait, the previous step edited the link to \"./tailwindcss.css\". So if the user says \"cdn\", maybe they want to replace that with a CDN URL. But without knowing the exact expectation, I need to ask or clarify. However, the tools allow me to use edit again. But the user's message is a bit ambiguous. Alternatively, maybe they want to add a separate CDN note? But the user's intent isn't clear.\n\nWait, perhaps the user wants to ensure that the Tailwind CSS is included via CDN. Since the previous step added a local link, now changing to CDN. But the system doesn't have a way to create a separate CDN file unless specified. Wait, the user might have meant \"cdn\" as a topic, but it's unclear.\n\nWait, looking back at the history: the user previously asked to \"add tailwindcss to the html file\". The assistant did an edit to link to \"./tailwindcss.css\". Now the user says \"cdn\". Maybe they want to switch to a CDN-based approach. But without more context, I should probably ask for clarification. However, the user might expect the next step. Wait, but the assistant should use tools to inspect and change files. Wait, the user's message is \"cdn\"—short and vague. Maybe they want to add a note or something. But this is confusing.\n\nWait, maybe the user made a typo or miscommunication. Alternatively, perhaps they want to make sure that all links are using CDNs. But given the previous steps, the only thing added was the local link. Hmm.\n\nWait, perhaps the correct action is to not assume and ask the user. But the instructions say to use tools. However, the user hasn't provided enough info. Wait, but the assistant must act based on the tool results. Wait, maybe the user intended to continue the previous work. Let me re-read the conversation.\n\nUser said: \"add tailwindcss to the html file\". Assistant edited the link. Then user says \"cdn\". So maybe the next step is to replace the local link with a CDN one. But where? The HTML file currently has `<link rel=\"stylesheet\" href=\"./tailwindcss.css\">`. To use CDN, it would be `<link rel=\"stylesheet\" href=\"https://tailwindcss.com/...\">`. But there's no specific CDN link provided. Wait, actually, Tailwind CSS doesn't have a single CDN file; you'd need to import specific utilities. So this might be a misunderstanding.\n\nAlternatively, maybe the user wants to verify that the link is a CDN. But the current link is local. Hmm. This is tricky. Since the user's message is ambiguous, but the assistant must act with tools. Wait, perhaps the user intended to \"cdn\" meaning change to CDN. But without further info, I should ask. However, the assistant can't ask, must use tools. Wait, but the user might have meant to add a CDN note. Wait, no. Let me check the previous steps again.\n\nWait, the previous assistant action was editing index.html to add the Tailwind CSS link.",
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+  }
+]

research/multiturn-audit/retained-template-parity.json

@@ -0,0 +1,14 @@
+[
+  {
+    "case": "retain-history-thoughts",
+    "tokens": 5820,
+    "token_ids_match": true,
+    "text_match": true
+  },
+  {
+    "case": "drop-history-thoughts",
+    "tokens": 3310,
+    "token_ids_match": true,
+    "text_match": true
+  }
+]

research/multiturn-audit/source-verification.json

@@ -0,0 +1,34 @@
+[
+  {
+    "file": "chat_template.jinja",
+    "matches_current_upstream": true
+  },
+  {
+    "file": "config.json",
+    "matches_current_upstream": true
+  },
+  {
+    "file": "generation_config.json",
+    "matches_current_upstream": true
+  },
+  {
+    "file": "model-00000-of-00001.safetensors",
+    "matches_current_upstream": true
+  },
+  {
+    "file": "model.safetensors.index.json",
+    "matches_current_upstream": true
+  },
+  {
+    "file": "special_tokens_map.json",
+    "matches_current_upstream": true
+  },
+  {
+    "file": "tokenizer.json",
+    "matches_current_upstream": true
+  },
+  {
+    "file": "tokenizer_config.json",
+    "matches_current_upstream": true
+  }
+]

scripts/prepare_space.py

@@ -57,6 +57,7 @@ for name in [
     'agent-local-demo-modal.json', 'agent-compact-header.json',
     'agent-context-render.json', 'agent-context-usage.json',
     'agent-compact-shell.json', 'agent-white-action-modal.json',
+    'agent-thinking-context.json', 'agent-thinking-conversation.json', 'agent-thinking-render.json',
 ]:
     source = root / 'validation' / name
     if source.is_file():
@@ -73,6 +74,11 @@ for folder in ['browser-agent', 'download-audit']:
     shutil.copyfile(root / 'research' / folder / 'REPORT.md', report / 'REPORT.md')
 for name in ['pi-agent-README.md', 'pi-ai-README.md', 'just-bash-README.md']:
     shutil.copyfile(root / 'research/browser-agent' / name, out / 'research/browser-agent' / name)
+audit = out / 'research/multiturn-audit'
+audit.mkdir(parents=True)
+for source in sorted((root / 'research/multiturn-audit').iterdir()):
+    if source.is_file() and (source.name == 'REPORT.md' or source.suffix in {'.json', '.py', '.mjs'}):
+        shutil.copyfile(source, audit / source.name)
 shutil.copyfile(root / 'requirements-convert.txt', out / 'requirements-convert.txt')
 shutil.copyfile('/usr/share/common-licenses/Apache-2.0', out / 'LICENSE')
 shutil.copyfile(root / 'SPACE_README.md', out / 'README.md')

validation/agent-thinking-context.json

@@ -0,0 +1,244 @@
+{
+  "date": "2026-09-14T08:58:17.447Z",
+  "url": "http://127.0.0.1:4173/?source=local",
+  "checks": [
+    "Input focused on page load; keyboard command works without clicking",
+    "Modal takes focus and Cancel restores Pi input and draft",
+    "Actual model/tool workflow: live token increments and final counts equal generation usage",
+    "Used/limit and remaining tokens fully visible at desktop and 320px widths",
+    "Stopped generation retains exact counts; reload restores them and focuses input",
+    "New chat resets context usage"
+  ],
+  "errors": [],
+  "samples": [
+    {
+      "inputTokens": 0,
+      "outputTokens": 0
+    },
+    {
+      "inputTokens": 831,
+      "outputTokens": 0
+    },
+    {
+      "inputTokens": 831,
+      "outputTokens": 1
+    },
+    {
+      "inputTokens": 831,
+      "outputTokens": 3
+    },
+    {
+      "inputTokens": 831,
+      "outputTokens": 7
+    },
+    {
+      "inputTokens": 831,
+      "outputTokens": 11
+    },
+    {
+      "inputTokens": 831,
+      "outputTokens": 15
+    },
+    {
+      "inputTokens": 831,
+      "outputTokens": 19
+    },
+    {
+      "inputTokens": 831,
+      "outputTokens": 23
+    },
+    {
+      "inputTokens": 831,
+      "outputTokens": 27
+    },
+    {
+      "inputTokens": 831,
+      "outputTokens": 31
+    },
+    {
+      "inputTokens": 831,
+      "outputTokens": 35
+    },
+    {
+      "inputTokens": 831,
+      "outputTokens": 39
+    },
+    {
+      "inputTokens": 831,
+      "outputTokens": 44
+    },
+    {
+      "inputTokens": 908,
+      "outputTokens": 0
+    },
+    {
+      "inputTokens": 908,
+      "outputTokens": 1
+    },
+    {
+      "inputTokens": 908,
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