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tmu 75d605fabe 📝 Add backlog.tasks template and format rules

Introduce backlog.tasks, a project backlog in vscode-todotasks format
(not Markdown), seeded as a reusable template: Setup, v1.0, Bugs,
Enhancements, Documentation and Maintenance projects, with the
implementation tasks to be filled in later.

Document the format in AGENTS.md so agents can read and update the file,
recommend sandy081.todotasks in .vscode/extensions.json, and whitelist
"todotasks" for cspell, which both new mentions otherwise fail.

The branch, review and release policy is deliberately not asserted here:
it is unsettled, so it is tracked as a task-group under Setup and AGENTS.md
tells agents to take branch and merge instructions from the user until that
work is documented.

2026-09-08 11:42:46 +02:00

4.7 KiB

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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).
While iterating: npm run test (check:tsc + the unit suite) for fast feedback on the files you changed.
Definition of done — run this before you call the work finished: npm run verify. If all green, commit. If red, look at the output, fix the root cause, and re-run.
On commit: write a good message (see CONTRIBUTING.md § Commit messages). Lefthook's pre-commit hook already runs the fast, offline, staged-file checks — don't run them by hand. If the hook fails on style, npm run fix, restage, recommit.
npm run maintain is NOT part of the feature loop. Its scans are advisory, never a gate; run them only on an explicit maintenance / update-deps branch.
```
npm run test    # while iterating (fast feedback)
npm run verify  # definition of done: whole-project correctness, one shot
```

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>.

Never start a long-lived / blocking process such as npm run watch. It runs until a human stops it with Ctrl-C, so in an agent turn it hangs forever and floods the context with continuous output. Reach for a one-shot command instead — npm run test (or npm run check) — to get feedback.

Backlog

backlog.tasks uses the vscode-todotasks format (not Markdown). A line ending in : is a project; every other line is a task. Status glyphs: ☐ open, ✔ done, ✘ cancelled; subtasks nest by indentation. Inline @tags carry metadata — @done / @cancelled mark completion, @critical / @high / @low / @today set priority. The (…) timestamp after @done is editor-generated: omit it when checking off by hand.

How a backlog task maps onto branches, review and release is not yet settled — see the branching-model task-group in backlog.tasks. Until that is documented, take branch and merge instructions from the user rather than inferring them.

Read these

CONTRIBUTING.md § Rules the tools don't enforce — the constraints the linters don't catch; CI/review bounce these. The most important section.
CONTRIBUTING.md § Testing discipline (type-driven) — write the expectTypeOf (type) before the assert (red); the types are the feature.
CONTRIBUTING.md § Script prefix convention — adding an npm run script? reuse an existing prefix or it doesn't belong.
CONTRIBUTING.md § Commit messages — gitmoji + imperative + 50/72.
CONTRIBUTING.md § Feedback tiers — what runs when and at what cost (watch / pre-commit / pre-push / check / verify / fix / maintain / CI).
README.md § Tooling decisions — the rationale behind each tool choice; read before changing tooling.
package.json #scripts — the source of truth for every command (the LEFTHOOK_FILES convention scopes them to staged files vs. the whole project).