fix(#4830): re-land #4768's letter-suffix phase-id fix and its lint-phase-id-drift ratchets on current next (#4873)

* fix(#4830): re-land #4768's letter-suffix phase-id fix and its lint-phase-id-drift ratchets on current next

Commit 740ba0d8a (#4781) removed every change #4768 had merged for #4748:
the first-non-digit split at execute-phase.md's two arithmetic sites, the
init-emitted `padded_phase` the REVIEW.md lookup binds instead of
`printf "%02d"`, the canonical-grammar extractions in autonomous.md and
plan-review-convergence.md, the `.changeset/zesty-wolves-tumble.md`
fragment, and the three lint-phase-id-drift ratchets with their tests.
The guard and the code it guarded left together, so nothing went red.

This is a cherry-pick of 092d9256b onto current `next`, resolved against
the #4683 threat-id fields on execute-phase.md's Parse-JSON line, with the
changeset `pr:` reset to the placeholder and the compact-content benchmark
baseline regenerated against the current base.

(cherry picked from commit 092d9256b8)

Emitted-Drift-Ack-Growth: autonomous.md — restores #4768's canonical-grammar extraction and its explanatory comment for --from/--to/--only
Emitted-Drift-Ack-Growth: execute-phase.md — restores #4768's first-non-digit split at two arithmetic sites and the padded_phase binding for the REVIEW.md lookup
Emitted-Drift-Ack-Growth: plan-review-convergence.md — restores #4768's canonical-grammar phase extraction and its comment
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AX7LXxc3uAkGki6iaYiAMP

* chore(#4830): set changeset fragment pr to 4873

---------

Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>
Co-authored-by: Tom Boucher <trekkie@nomorestars.com>
This commit is contained in:
0xdhx
2026-09-19 23:01:21 -05:00
committed by GitHub
parent 09e1110e68
commit 8a5166598c
15 changed files with 674 additions and 50 deletions

View File

@@ -246,11 +246,14 @@ function findBranchSlugFallbackDrift(text) {
// 1. Prose mentioning the literal pattern in a full-line `#`-comment
// (filtered by the caller, not this regex — see below).
// 2. `$((10#$PHASE_INT))` / `$((10#$SPOT_PHASE_INT))` — arithmetic on the
// NOW-safe variable the #4619 fix produces via `PHASE_INT=${PHASE_NUMBER%%.*}`;
// a `%%.*`-stripped value can never contain a dot, so base-10 arithmetic
// on it can never hit the #4619 syntax-error class. Any name ending in
// `_INT` (case-insensitive) is that established "already reduced to a
// safe integer" convention.
// NOW-safe variable the #4619 fix produces via a leading-digit-run split
// (`PHASE_INT=${PHASE_NUMBER%%[!0-9]*}` since #4748; `%%.*` before it);
// a digit-run value can never contain a dot OR a letter, so base-10
// arithmetic on it can never hit the #4619 / #4748 error classes. Any
// name ending in `_INT` (case-insensitive) is that established "already
// reduced to a safe integer" convention. That convention is a NAME, not
// a proof — `findDotOnlyIntegerSplitDrift` below polices that the split
// producing it actually stops at the first non-digit.
// 3. `$((10#{plan_padded}))` / `$((10#${PLAN_ID}))` — plan ids are plain
// integers and were never in scope; this rule only polices variables
// that carry a *phase* id.
@@ -449,6 +452,144 @@ function scanMarkdownLetterlessPhaseMirror(root) {
return violations;
}
// #4748 (epic #4634): three shell shapes OUTSIDE the grammar-mirror family the
// rules above police — consumers of a phase id rather than regexes for one —
// each of which the letter axis broke while every rule above reported clean:
//
// a. `PHASE_INT=${PHASE_NUMBER%%.*}` — the post-#4619 dot-only split. The
// `_INT` name it produces satisfies the shell-arithmetic rule's escape,
// but on `03A` the "integer" is `03A` and `$((10#03A))` aborts. The safe
// split stops at the first NON-digit: `${PHASE_NUMBER%%[!0-9]*}`.
// b. `[0-9]+\.?[0-9]*` (and `\d+\.?\d*`) — a digit-then-optional-dot
// extraction that is neither the bounded `(\.[0-9]+)?` shape the
// single-segment rule bans nor the unbounded `(\.[0-9]+)*` shape the
// letterless rule inspects, so both were blind to it. It captures `12`
// from `12A` and `23.1` from `23.1.2`, silently.
// c. `printf "%02d" "$PHASE_NUMBER"` — re-padding the whole id in shell.
// Rejects a letter id (prints `03`, exit 1) and misreads an already
// padded `08` as octal (prints `00`). Padding belongs to the canonical
// normalizer (`padded_phase` from init, or `normalizePhaseName`); the one
// legitimate shell pad is of an `_INT` value via `$((10#…))`.
//
// Same sanction as the other markdown rules: `<!-- phase-id-owner: … -->` on
// the nearest preceding non-blank line. Same documented limit: a per-line
// textual scan for the common accidental shape, not an obfuscated one.
// a. `<name>_INT=${<phase-carrying>%%.*}` — the `_INT` destination is the
// discriminator, deliberately: it is the name the shell-arithmetic rule
// trusts as "already a safe integer", so a dot-only split INTO it is the
// exact promise this rule exists to check. A dot-only split into any other
// name is a different, legitimate operation — `PARENT_PHASE="${PHASE_NUMBER%%.*}"`
// (gap-closure-artifacts.md) wants everything before the first dot, letter
// included, and is correct. Widening to any destination was tried and flagged
// that site. The optional quote after `=` is the one spelling that site uses.
const DOT_ONLY_INT_SPLIT_DRIFT_RE = /[A-Za-z0-9_]*_INT="?\$\{([A-Za-z0-9_]+)%%\\?\.\*\}/i;
/**
* Pure: find every unsanctioned dot-only integer split of a phase-carrying
* variable in `text`. Skips full-line `#` comments (prose). Returns [{ line, found }].
*/
function findDotOnlyIntegerSplitDrift(text) {
const out = [];
const lines = text.split('\n');
for (let i = 0; i < lines.length; i++) {
const line = lines[i];
if (/^\s*#/.test(line)) continue;
const m = DOT_ONLY_INT_SPLIT_DRIFT_RE.exec(line);
if (!m) continue;
if (!/phase/i.test(m[1])) continue;
if (isSanctionedByPrecedingComment(lines, i, MD_OWNER_RE)) continue;
out.push({ line: i + 1, found: m[0] });
}
return out;
}
// b. The digit-then-optional-dot shape, in both `[0-9]` and `\d` spellings.
// Anchored on the trailing `*` of the second digit class so a bare `[0-9]+`
// probe or a `[0-9]+\.[0-9]+` (mandatory-dot) shape is not matched.
const LOOSE_DOTTED_PHASE_DRIFT_RE = /(?:\\{1,2}d|\[0-9\])\+\\{1,2}\.\?(?:\\{1,2}d|\[0-9\])\*/;
/**
* Pure: find every unsanctioned `[0-9]+\.?[0-9]*`-shaped phase extraction in
* `text`, restricted to phase-carrying lines like its two sibling regex rules.
* Returns [{ line, found }].
*/
function findLooseDottedPhaseRegexDrift(text) {
const out = [];
const lines = text.split('\n');
for (let i = 0; i < lines.length; i++) {
const line = lines[i];
const m = LOOSE_DOTTED_PHASE_DRIFT_RE.exec(line);
if (!m) continue;
if (!PHASE_CARRYING_LINE_RE.test(line)) continue;
if (isSanctionedByPrecedingComment(lines, i, MD_OWNER_RE)) continue;
out.push({ line: i + 1, found: m[0] });
}
return out;
}
// c. `printf "%Nd" …` / `printf '%0Nd' …` — any integer conversion, either
// quote, with or without the zero flag — whose argument list names a
// phase-carrying variable that is NOT an `_INT` (the `$((10#$PHASE_INT))`
// pad is the sanctioned shape). `%d` cannot parse a letter id under any
// width, so the flag is not the discriminator. Captures the first such name
// so the report says what was padded.
const SHELL_PHASE_PRINTF_PAD_RE = /printf\s+(?:"%0?\d*d[^"]*"|'%0?\d*d[^']*')\s+(.*)$/;
const SHELL_VAR_NAME_RE = /\$\{?([A-Za-z_][A-Za-z0-9_]*)/g;
/**
* Pure: find every unsanctioned `printf "%02d"` re-pad of a phase-carrying,
* non-`_INT` shell variable in `text`. Skips full-line `#` comments.
* Returns [{ line, found }].
*/
function findShellPhasePrintfPadDrift(text) {
const out = [];
const lines = text.split('\n');
for (let i = 0; i < lines.length; i++) {
const line = lines[i];
if (/^\s*#/.test(line)) continue;
const m = SHELL_PHASE_PRINTF_PAD_RE.exec(line);
if (!m) continue;
const offender = [...m[1].matchAll(SHELL_VAR_NAME_RE)]
.map((v) => v[1])
.find((name) => /phase/i.test(name) && !/_int$/i.test(name));
if (!offender) continue;
if (isSanctionedByPrecedingComment(lines, i, MD_OWNER_RE)) continue;
out.push({ line: i + 1, found: `printf "%0…d" …$${offender}` });
}
return out;
}
/**
* Scan the shell roots (`gsd-core/workflows/**\/*.md`, `gsd-core/references/**\/*.md`)
* for the two shell-idiom rules (a, c) and the three regex roots (those plus
* `agents/**\/*.md`) for the extraction-shape rule (b). Returns
* [{ file, kind, line, found }] with repo-relative paths.
*/
function scanMarkdownLetterAxisConsumers(root) {
const violations = [];
const collect = (dirs, finder, kind) => {
for (const dir of dirs) {
for (const file of walkMd(path.join(root, dir), [])) {
const rel = path.relative(root, file);
let text;
try {
text = fs.readFileSync(file, 'utf8');
} catch {
continue;
}
for (const d of finder(text)) {
violations.push({ file: rel, kind, ...d });
}
}
}
};
collect(MD_SCAN_DIRS, findDotOnlyIntegerSplitDrift, 'dot-only-int-split');
collect(SINGLE_SEGMENT_SCAN_DIRS, findLooseDottedPhaseRegexDrift, 'loose-dotted-phase-regex');
collect(MD_SCAN_DIRS, findShellPhasePrintfPadDrift, 'shell-phase-printf-pad');
return violations;
}
// Authored TypeScript source only (the generated bin/lib/*.cjs mirror it).
const SCAN_DIRS = ['src'];
const SCAN_EXT = new Set(['.cts', '.ts', '.mts']);
@@ -602,6 +743,7 @@ function scanAll(root) {
...scanMarkdownShellArith(root),
...scanMarkdownSingleSegmentPhaseRegex(root),
...scanMarkdownLetterlessPhaseMirror(root),
...scanMarkdownLetterAxisConsumers(root),
];
}
@@ -631,6 +773,11 @@ function main() {
process.stderr.write('A digit-only unbounded-segment phase regex `[0-9]+(\\.[0-9]+)*` on the same roots\n');
process.stderr.write('is missing the canonical letter axis (#4660) — widen to `[0-9]+[A-Z]?(\\.[0-9]+)*`\n');
process.stderr.write('or sanction with `<!-- phase-id-owner: <reason> -->`.\n');
process.stderr.write('Three letter-hostile consumers of a phase id are banned on the same roots (#4748):\n');
process.stderr.write('a dot-only integer split `X_INT=${PHASE%%.*}` (split at the first non-digit,\n');
process.stderr.write('`${PHASE%%[!0-9]*}`); a `[0-9]+\\.?[0-9]*` extraction (use `[0-9]+[A-Z]?(\\.[0-9]+)*`);\n');
process.stderr.write('and a `printf "%02d"` re-pad of a phase variable (bind init\'s `padded_phase`, or pad\n');
process.stderr.write('only an `_INT` via `$((10#…))`) — or sanction with `<!-- phase-id-owner: <reason> -->`.\n');
process.stderr.write('A `.replace(\'{slug}\', ... || \'phase\')` fallback is banned outright (#4126) —\n');
process.stderr.write('use `renderPhaseBranchName(` or sanction with\n');
process.stderr.write('`// phase-id-owner: <reason>` on the line directly above:\n');
@@ -650,9 +797,13 @@ module.exports = {
findShellPhaseArithDrift,
findSingleSegmentPhaseRegexDrift,
findLetterlessPhaseMirrorDrift,
findDotOnlyIntegerSplitDrift,
findLooseDottedPhaseRegexDrift,
findShellPhasePrintfPadDrift,
scanMarkdownShellArith,
scanMarkdownSingleSegmentPhaseRegex,
scanMarkdownLetterlessPhaseMirror,
scanMarkdownLetterAxisConsumers,
scanRepo,
scanAll,
countSelectorBaselines,
@@ -664,4 +815,7 @@ module.exports = {
SHELL_PHASE_ARITH_DRIFT_RE,
SINGLE_SEGMENT_PHASE_DRIFT_RE,
LETTERLESS_PHASE_MIRROR_DRIFT_RE,
DOT_ONLY_INT_SPLIT_DRIFT_RE,
LOOSE_DOTTED_PHASE_DRIFT_RE,
SHELL_PHASE_PRINTF_PAD_RE,
};