Files
msd-core/.changeset/steady-birds-hum.md
Tom Boucher 8249ebcf6e fix(#3770): require intentional RED evidence before GREEN (#4279)
* test(3770): add failing tests for intentional RED evidence gate

RED: classifyRedEvidence / buildRedEvidenceRecord / check tdd-red-evidence do
not exist yet; every row fails on require. Per #3770 only an intentional
target-test failure may authorize GREEN; zero-test discovery, fixture crashes,
unrelated failures, and unexpected green are INVALID_RED.

* fix(3770): require intentional RED evidence before GREEN

Only an intentional failure of the TARGET test (distinctly named, TAP-reported
assertion failure) classifies as RED_EVIDENCE_OK and authorizes GREEN. Zero-test
discovery, fixture/load crashes (file-named failures), nonzero exits without a
failing test, unrelated failures, unexpected greens, and malformed/missing
records are INVALID_RED and block GREEN.

- src/tdd-red-evidence.cts: pure classifier + persisted record builder (reuses
  the prohibition-enforcement TAP primitives; fail-closed, never throws)
- check tdd-red-evidence <record.json>: validates the persisted record
  (command, exit code, failing test, expected, actual)
- gsd-executor.md / references/tdd.md / references/execute-mvp-tdd.md: RED now
  requires the evidence record + gate verdict, not a nonzero exit or a RED: tag

* chore(3770): regenerate inventory manifest for tdd-red-evidence.cjs

* fix(3770): fit executor fail-fast under size cap, fix unrelated-failure fixture, ignore generated lib

- gsd-executor.md: compress the #3770 fail-fast rule to one line (49149 B <
  49152 cap; line-count parity keeps the #2751 PROSE_ALLOWLIST line 816 valid)
- tests: the row-6 fixture used String.replace (first-occurrence), so the
  `not ok` line still named the target test and the classifier was right to
  accept it; replaceAll makes the failure genuinely unrelated
- eslint.config.mjs: ignore tsc-generated bin/lib/tdd-red-evidence.cjs
  (lint the src/*.cts source, per ADR-457 migration rule)

Emitted-Drift-Ack-Growth: gsd-executor.md — the #3770 fail-fast rule now requires intentional RED evidence (check tdd-red-evidence) before GREEN; +172 bytes, kept under the LARGE cap and on one line

* chore(3770): add changeset

* chore(3770): backfill PR number in changeset

---------

Co-authored-by: sim <sim@local>
2026-09-04 16:44:38 -04:00

410 B

type, pr
type pr
Fixed 4279

TDD executor now requires intentional RED evidence before GREEN — a RED-phase test command that exits nonzero no longer authorizes production edits unless the persisted evidence record shows the TARGET test failing a real assertion. Syntax errors, zero-test discovery, fixture crashes, parser errors, and unrelated assertions classify as INVALID_RED and block GREEN. (#3770)