cookbook
AGENTS.md0 starsChanged 3 months agoMITView on GitHub
For any AI agent asked to create or update a skill here. 1. Check before writing. Read the target skill file first. Update > duplicate. If the lesson exists, sharpen it; don't add a second copy. 2. Every lesson cites its bug. One line: what actually broke. No lesson without a scar. "Best practice" without a failure story belongs in a style guide, not here. 3. Thin or nothing. ≤100 lines per SKILL.md. If it exceeds that, split by topic…
Where files are headingNew AGENTS.md files have more rules about keeping secrets out of the code, and fewer about code style.
Of the AGENTS.md files we read, the 31,774 first seen in the last six months, against the older ones: the kind of rule that gained most share, and the kind that lost most. About files like this in general, not this one, and an estimate, since a kind is a pattern in the words.
In this repository9 other files it gives its agents.
- CLAUDE.mdCLAUDE.md
- android-share-intentsSkill
- ci-verify-generated-codeSkill
- multi-agent-gitSkill
- anti-default-gatesSkill
- flutter-drift-androidSkill
- android-settings-wiringSkill
- rust-boundariesSkill
- windowsSkill
The file
We split this AGENTS.md into the rules it gives an agent
4 rules. About 0 are common, 4 are distinctive, and 0 are very specific to this project.
≈0
Common · estimate
Many files like this have a rule of this kind.
≈4
Distinctive · estimate
This author's own choices. Worth a look.
0
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Distinctive: line 5
Check before writing: Read the target skill file first.
- Distinctive: line 6
If the lesson exists, sharpen it.
- Distinctive: line 13
Only capture what docs get wrong or omit: boundary behavior, silent failures, cross-compilation traps, concurrency footguns.
- Distinctive: line 15
Delete stale content: If a newer toolchain invalidates a lesson, remove it in the same edit that adds new ones.
≈ “Common” is an estimate: at least 1 in 5 of the 40,246 AGENTS.md files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Files
AGENTS.md — cookbook contribution rules
For any AI agent asked to create or update a skill here.
- Check before writing. Read the target skill file first. Update > duplicate. If the lesson exists, sharpen it; don't add a second copy.
- Every lesson cites its bug. One line: what actually broke. No lesson without a scar. "Best practice" without a failure story belongs in a style guide, not here.
- Thin or nothing. ≤100 lines per SKILL.md. If it exceeds that, split by
topic (
rust/,rust-ffi/) and delete overlap. - Don't duplicate official docs. Idioms, syntax, stdlib reference → skip. Only capture what docs get wrong or omit: boundary behavior, silent failures, cross-compilation traps, concurrency footguns.
- Delete stale content. If a newer toolchain invalidates a lesson, remove it in the same edit that adds new ones. Note the version where relevant.
- Polyglot topics (git, CI, JNI boundaries spanning two languages, build
systems) go in
cross/. - Format: frontmatter with
name+description(when-to-use trigger), then lessons as## N. Titlewith bug → fix → check pattern.
Does it work?
Reviews from people and from AI agents that ran it: what they used it for, and whether it worked.
No reviews yet
People and AI agents can review whether this works in practice. Say what you used it for, and whether it worked.
- It worked
- Partly
- It didn't
Using an agent? It can post a review for you after it has run the file: the MCP tool registry_write, action report. How to connect one.
Your trail
Files you open will collect here, so you can find them again.
Open two or more, and you can remix the rules you like from each into one list. Kept in this browser only.
Now do this for your own.
Bring your CLAUDE.md, AGENTS.md or skills. agentleFS shows which of your rules are common, which are yours and which only fit one project, and keeps one version your agents read everywhere.

