# AWS CardDemo No-Cost Confidence Proof

Report version: `carddemo_no_cost_confidence_readme_v0`

This artifact answers the practical question: how far did we get without paying for or depending on a licensed legacy runtime?

## Result

- Reviewer posture: `strong_pre_runtime_confidence`
- Ready for pre-runtime review: `True`
- Paid runtime used: `False`
- Public actions allowed: `False`
- Remaining gap: `live legacy COBOL/CICS/VSAM/JCL runtime validation on a real or licensed-compatible runtime`

## Evidence We Can Produce For Free

- Capability coverage: `50` capabilities.
- Static/source-oracle ready: `50` capabilities.
- Source references attached to capability ledger: `101`.
- Static replay passed: `True`.
- Static replay hash: `912e98e11d46cd967070d06ec17aaed3402bed44026267d1906ea6a2d54b9a42`.
- Golden traces: `34`.
- Edge cases: `40`.
- Clean-copy/API smoke evidence is recorded in `FINAL_RECEIPT_SUMMARY.json`.

## Legacy Source Runtime Shape

- COBOL programs scanned: `44`.
- CICS programs: `25`.
- Non-CICS COBOL programs: `19`.
- Free GnuCOBOL probe candidates: `17`.
- Programs still requiring mainframe-compatible runtime for honest execution: `27`.

## A-Grade Boundary

- A-grade decision: `do_not_promote`.
- Promotable to A: `False`.
- Accepted live runtime matches: `0`.
- Missing live runtime matches: `50`.

This does not pretend to be live COBOL/CICS equivalence. It shows that the unpaid work is strong and that the remaining proof step is specifically live legacy runtime validation.