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tiny-pattern-ts/AGENTS.md
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tmu 8940537fc0 📝 Add hook-discipline rule to AGENTS.md
The agent must not use `git commit --no-verify` (or skip any hook) to get a
green run — bypassing a check to silence it is the same anti-pattern as
@ts-nocheck or an oxlint-disable. The pre-commit checks are fast and offline,
so a redundant run costs nothing. Records the "redo through the hook" recovery
command.
2026-09-05 16:35:14 +02:00

3.4 KiB

AGENTS.md

Machine entry point for AI coding agents working in this repo. The authoritative guidance for humans lives in CONTRIBUTING.md and README.md; this file only points at it and states the stable first-action facts. Do not restate evolving prose here — it will drift.

First action

  • Project: F#-style pattern matching for TypeScript/ESM. Node >=26 (pinned via .node-version), ESM-only (no CommonJS shim).

  • Mandatory while iterating: npm run test (runs check:tsc, then the unit suite). This is the gate you are responsible for.

  • On commit: write a good message (see CONTRIBUTING.md § Commit messages). Lefthook's pre-commit hook already runs the fast, offline, staged-file checks (tsc + oxlint + oxfmt + cspell) — don't run them by hand. If the hook fails on style, npm run fix, restage, recommit.

  • npm run check is NOT part of the feature loop. It adds knip (dead-code/deps) and check:outdated (registry) — repo-maintenance scans. Run it only on an explicit maintenance / update-deps branch; CI runs it on the PR regardless.

    npm run test   # the bot's definition of done; commit normally after
    

Never do

Don't silence the type system to force a green run. As an agent these are forbidden:

  • // @ts-nocheck, // @ts-ignore, // @ts-expect-error
  • // oxlint-disable / // oxlint-disable-next-line
  • as casts used to push an expression through (type-aware oxlint already flags unsafe assertions)

Fix the root cause with the type system instead — narrowing, generics, satisfies, conditional / mapped types, utility types (NonNullable, Exclude, …). TypeScript can express it; that's the intended tool. The oxlint-disable-location rule in CONTRIBUTING.md § Rules the tools don't enforce is a human last-resort convention (so a reviewer can spot a deliberate suppression) — it is not permission for you to add one. If the types genuinely cannot express something, stop and surface the conflict (commit message / MR) rather than suppress it.

The same applies to the checks themselves: never git commit --no-verify (or otherwise skip a pre-commit / pre-push hook). The checks are fast and offline, so a redundant run is fine — bypassing a hook to get green is the identical anti-pattern. If a commit already skipped a hook, redo it through one: git reset --soft HEAD~1 && git commit -C <skipped-sha>.

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