File size: 2,981 Bytes
bf57148 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | #!/usr/bin/env node
const fs = require('fs');
const path = require('path');
const root = path.join(__dirname, '..');
function read(relPath) {
return fs.readFileSync(path.join(root, relPath), 'utf8').replace(/\r\n/g, '\n').trim();
}
function stripFrontmatter(text) {
return text.replace(/^---\n[\s\S]*?\n---\n*/, '').trim();
}
const agents = read('AGENTS.md');
const canonical = agents.replace(/\n\n\(Yes, this file also applies[\s\S]*?\)$/, '').trim();
// Compact copies: same body as AGENTS.md, host-specific frontmatter stripped.
const copies = [
['.cursor/rules/ponytail.mdc', stripFrontmatter],
['.windsurf/rules/ponytail.md', text => text.trim()],
['.clinerules/ponytail.md', text => text.trim()],
['.agents/rules/ponytail.md', text => text.trim()],
['.qoder/rules/ponytail.md', text => text.trim()],
['.github/copilot-instructions.md', text => text.trim()],
['.kiro/steering/ponytail.md', stripFrontmatter],
];
let failed = false;
for (const [relPath, normalize] of copies) {
const actual = normalize(read(relPath));
if (actual !== canonical) {
console.error(`${relPath} drifted from AGENTS.md`);
failed = true;
}
}
// SKILL.md is the runtime source of truth and is longer than the compact body,
// so it cannot be byte-compared. ponytail: canary, not full equality. Assert the
// load-bearing rules survive verbatim in both the source and AGENTS.md. Changing
// a rule's wording trips this, which is the reminder to propagate it everywhere.
// Upgrade path: generate the copies from SKILL.md if this ever misses a real drift.
const INVARIANTS = [
'in this codebase', // ladder rung: reuse what already exists (#217)
'naive heuristic', // ceiling-comment rule
'ONE runnable check', // test reflex
'flimsier algorithm', // robust-variant rule
// the four "not lazy about" safety carve-outs: pin each so a reword in either
// file can't silently drop one. Only validation was pinned before. These are the
// continuous substrings present in both files ("prevents data loss" because the
// full "error handling that prevents data loss" wraps a line in SKILL.md).
'input validation at trust boundaries',
'prevents data loss',
'security',
'accessibility',
'Lazy code without its check is unfinished', // one-check promoted to headline
];
const skill = read('skills/ponytail/SKILL.md');
const sources = [['skills/ponytail/SKILL.md', skill], ['AGENTS.md', agents]];
for (const phrase of INVARIANTS) {
for (const [label, text] of sources) {
if (!text.includes(phrase)) {
console.error(`${label} is missing rule invariant: "${phrase}"`);
failed = true;
}
}
}
if (failed) {
console.error('Update the copied rule text, AGENTS.md, or SKILL.md so the shared rules match.');
process.exit(1);
}
console.log(`Rule copies match AGENTS.md; ${INVARIANTS.length} rule invariants present in SKILL.md and AGENTS.md.`);
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