Contributing

Thanks for helping improve this skill. It teaches an LLM (and now a deterministic engine) to spot and fix AI-writing tells. Contributions are welcome — a few things keep the project coherent.

How the repo fits together

Path	What it holds
SKILL.md	The human-readable catalog of rules. The source of truth for what counts as an AI tell.
detector/patterns.js	The deterministic engine — the executable subset of the rules.
detector/CATEGORIES.md	The map between SKILL.md rules and detector types. Keep it current.
README.md	The pitch and the numbered prose-pattern list.
cursor-rules/, plugins/	Editor and tool integrations.

Adding or changing a rule

First decide which kind of rule it is:

• Regex-detectable (a phrase, a character, a structural shape) → add it to SKILL.md, add the detection to detector/patterns.js with a new type, and add a row to detector/CATEGORIES.md. Cover it with a fixture in detector/patterns.test.js (both a true positive and a case that must not fire).
• Judgment-only (needs reading for meaning — tone, structure, name-dropping) → add it to SKILL.md prose and list it under "Skill-only" in detector/CATEGORIES.md. There is no detector type for these.

If you are unsure which it is, open an issue first and we will sort it out.

Precision over recall

This skill is deliberately biased toward false negatives: a rule that wrongly flags ordinary human writing is worse than one that misses a tell, because false positives erode trust in every other rule. Before proposing a rule, ask who would get flagged by mistake, and add carve-outs for the legitimate cases. A signal that fires on most normal prose is not worth adding.

Cite your sources

If your rule rests on a factual claim about how AI or humans write — "ChatGPT emits curly quotes by default," "most writers rarely do X" — link a source for it. These claims get checked, and some turn out wrong or more nuanced than they first seem (smart quotes, for instance, are a typing-time default on macOS and in Word, not a publication-step artifact). A claim with a citation can be verified; an asserted one can't. Put the links in the PR description or inline in the rule.

Run the tests

npm test

This runs the engine fixtures and the CATEGORIES.md contract check (every detector type must be documented, and every documented type must be real). Both must pass. No dependencies to install; Node 18+ only.

Write clean prose

This repo polices writing quality, so the prose you add has to clear the same bar. Run your additions through the skill itself. Keep rule bullets terse and lead with the directive — match the length and tone of the bullets already in SKILL.md. Drop intensifiers like "strong" or "powerful"; let the rule stand on its own.

Changelog and versioning

Add an entry to CHANGELOG.md under a dated, versioned heading (## [X.Y.Z] — YYYY-MM-DD), matching the existing entries. A new rule is a minor version bump; update the version: field in the SKILL.md frontmatter to match.