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aws-carddemo-no-cost-modernization-proof

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AWS CardDemo Modernization Final Proof

This bundle packages the local AWS CardDemo modernization run as a reproducible technical-review artifact. It does not add application features; it records the source identity, modern code location, commands, receipts, static-oracle replay, no-cost confidence proof, A-grade promotion gate, known limits, and clean-copy verification status.

Source Identity

  • Source repo: https://github.com/aws-samples/aws-mainframe-modernization-carddemo.git
  • Source version: 59cc6c2fd7ebd7ef7925cad552a01a4b8b6e4d5e
  • Source local path used for this run: D:\scraper_storage\modernization_labs\aws-carddemo-modernization-20260523T073000Z\source
  • Source file hash count in receipt: 204
  • Source hash digest over receipt map: 0703f97553bde0f5bd170aa95ec8c771a975b397be7d9e8088ec6fbf31d333c2

Modern Code

  • Modern code path: D:\scraper_storage\modernization_labs\aws-carddemo-modernization-20260523T073000Z\modern_carddemo
  • Modern file hash count in receipt: 29
  • Modern hash digest over receipt map: 599294a7df7226c4d2a4b820de4bf567abbd1bdd1e41a1b6fd123457cb3abf40

One-Command Setup And Run

Run these from the modern code root with the AWS CardDemo source clone/copy at ..\source.

Setup database:

python -m carddemo.cli init-db --source-root ..\source --db-path .\carddemo.sqlite

Run web/API server:

python -m carddemo.cli serve --source-root ..\source --db-path .\carddemo.sqlite --port 8087

Open http://127.0.0.1:8087.

One-Command Tests 

python -m unittest discover -s tests

One-Command Static-Oracle Replay 

python tools\replay_static_oracles.py --source-root ..\source --out-dir .\reports --source-head 59cc6c2fd7ebd7ef7925cad552a01a4b8b6e4d5e

One-Command A-Grade Promotion Gate 

python tools\evaluate_a_grade_promotion.py --source-root ..\source --out-dir .\final_proof

One-Command No-Cost Confidence Proof 

python tools\build_no_cost_confidence.py --source-root ..\source --out-dir .\final_proof

Full Local Proof Refresh 

powershell -NoProfile -Command "python -m carddemo.cli init-db --source-root ..\source --db-path .\carddemo.sqlite; python -m unittest discover -s tests; python tools\generate_receipts.py --source-root ..\source --db-path .\carddemo.sqlite --out-dir .\reports; python tools\replay_static_oracles.py --source-root ..\source --out-dir .\reports --source-head 59cc6c2fd7ebd7ef7925cad552a01a4b8b6e4d5e; python tools\evaluate_a_grade_promotion.py --source-root ..\source --out-dir .\final_proof; python tools\build_no_cost_confidence.py --source-root ..\source --out-dir .\final_proof; python tools\package_final_proof.py --source-root ..\source"

Final Receipt Summary

  • Receipt hash: fea9dfeca8e1b400afe6fbf4a25f92282a6330da0bb031f87b8dbd6e41044819
  • Receipt generated: 2026-05-23T15:01:51+00:00
  • Static replay hash: 912e98e11d46cd967070d06ec17aaed3402bed44026267d1906ea6a2d54b9a42
  • Static replay passed: True
  • Runtime probe count: 6
  • Failed replay checks: []

Parity Summary

Under the current static/source-oracle rubric:

  • Capability count: 50
  • B-grade static/source-oracle capabilities: 50
  • F-grade gaps: 0
  • Gap count: 0
  • Next-gap ranking count: 0
  • Static-oracle-or-better count: 50
  • A-grade live legacy runtime trace count: 0

Proof grade meanings are recorded in FINAL_RECEIPT_SUMMARY.json.

No-Cost Confidence Proof

  • Reviewer posture: strong_pre_runtime_confidence
  • Ready for pre-runtime review: True
  • Paid runtime used: False
  • Legacy runtime claim made: False
  • Source-backed static capabilities: 50
  • Source refs in capability ledger: 101
  • Golden traces / edge cases: 34 / 40
  • Remaining gap: live legacy COBOL/CICS/VSAM/JCL runtime validation on a real or licensed-compatible runtime
  • No-cost confidence report hash: c72a4b6b30b7bbee9096b3d79e2893fb0263d5aee1f4aebaec37401810208441

This is the maximum unpaid/pre-runtime evidence layer. It is meant to convince a technical reviewer that the modernization is probably functional under the extracted legacy-derived behavior, while preserving the live runtime validation gap.

A-Grade Promotion Gate

  • A-grade gate decision: do_not_promote
  • Promotable to A: False
  • Required live legacy runtime matches: 50
  • Accepted live legacy runtime matches: 0
  • Missing live legacy runtime matches: 50
  • A-grade report hash: 4f962c34517806cf2dee00f3fdd0b7c4f51e9ec3f5935eedfabd04104e3ad3af

The A-grade gate is intentionally stricter than the B-grade static/source-oracle proof. It requires accepted live legacy COBOL/CICS runtime trace matches for each capability before any capability can be promoted to A.

Smoke Evidence

  • Screenshot: reports/ui_batch_reports_smoke.png SHA-256 f192f2b751ee902b70defbb5b49b745bbf8855a10bb8dc23d60e6c8bb9f6e537.
  • Clean-copy API smoke: passed=True port=8091 endpoints=batch_resource_setup_tranidx, health, mq_system_date, summary.

Clean-Copy Verification

  • Clean-copy verification status: passed
  • Verification report included in FINAL_RECEIPT_SUMMARY.json when present.

Caveat

This proof is static/source-oracle parity plus executable modern-service replay. It is not live COBOL/CICS all-path runtime equivalence.

See KNOWN_LIMITS.md for the full claim boundary.