mica_spec: "0.2.4"
name: stem-ai-bio
mode: protocol_evolution
description: "STEM BIO-AI distributed skill (16+ platforms). Single archive update authority. Platform deployments are read-only consumers. Never update archive in deployed copies."

layers:
  - name: archive
    path: memory/stem-ai.mica.v1.8.3.json
    format: json
    loading_hint: always

  - name: playbook
    path: memory/stem-ai-playbook.v1.8.3.md
    format: markdown
    loading_hint: always

  - name: lessons
    path: memory/stem-ai-lessons.v1.8.3.md
    format: markdown
    loading_hint: on_demand

update_triggers:
  - on_version_bump
  - on_explicit_save

invocation_protocol:
  primary_pattern: readme_protocol
  self_test_runtime: readme_protocol_ai_session
  hook_output_prefix: "[MICA]"
  hook_output:
    max_di_lines: 3
    di_filter: violations_only

archive_policy:
  rotation: on_version_bump
  retention: git_tagged_release_history

drift_profile:
  enabled: true
  default_action: warn_continue
  source_classes:
    - code
    - playbook
    - archive
    - readme
    - changelog
  classes:
    - id: DRF-001
      label: code_playbook_divergence
      severity: error
      action: require_acknowledgment
    - id: DRF-002
      label: docs_canonical_divergence
      severity: warning
      action: warn_continue
    - id: DRF-003
      label: invariant_change_without_rationale
      severity: critical
      action: block_session
    - id: DRF-004
      label: version_reference_staleness
      severity: warning
      action: warn_continue