jars-skills
AGENTS.md0 starsChanged 31 days agoMITView on GitHub
Guidance for AI coding agents (Claude Code, Codex, Cursor, Copilot, and others) working in this repository. Humans: see CONTRIBUTING.md. A collection of Agent Skills. Each skill is one folder under skills/ with a SKILL.md, and the repo doubles as a Claude Code plugin marketplace. 1. One job per skill. If a skill needs "and" to describe it, split it. 2. Folder name = name in the frontmatter: lowercase letters, digits, and hyphens, at most 64 characters. Never rename a published…
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 31,843 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 repository68 other files it gives its agents.
- .claude/CLAUDE.mdCLAUDE.md
- accessibilitySkill
- api-designSkill
- api-versioningSkill
- authSkill
- background-jobsSkill
- cachingSkill
- capacity-planningSkill
- changelogSkill
- chaos-engineeringSkill
- ci-cdSkill
- circuit-breakerSkill
- claude-best-practicesSkill
- code-commentsSkill
- code-hygieneSkill
- code-reviewSkill
- code-structureSkill
- commit-styleSkill
- concurrency-and-lockingSkill
- database-transactionsSkill
- data-consistencySkill
- debug-infra-startupSkill
- debug-sessionSkill
- demo-video-creatorSkill
- demo-video-script-creatorSkill
- dependency-injectionSkill
- dependency-updateSkill
- disk-cleanupSkill
- distributed-tracingSkill
- dockerSkill
- env-configSkill
- env-setupSkill
- error-handlingSkill
- event-driven-architectureSkill
- feature-flagsSkill
- file-storageSkill
- graceful-shutdownSkill
- idempotencySkill
- input-validationSkill
- jars-engineering-blogsmithSkill
- jars-workshop-builderSkill
- licensingSkill
- loggingSkill
- memory-and-allocationsSkill
- migrate-dbSkill
- monitoringSkill
- multi-tenancySkill
- notificationsSkill
- openapiSkill
- paginationSkill
- perf-profileSkill
- pr-descriptionSkill
- query-optimizationSkill
- rate-limitingSkill
- refactorSkill
- releaseSkill
- runbook-writerSkill
- searchSkill
- secrets-auditSkill
- simplifySkill
- The first 60 shown.
The file
We split this AGENTS.md into the rules it gives an agent
6 rules. About 0 are common, 3 are distinctive, and 3 are very specific to this project.
≈0
Common · estimate
Many files like this have a rule of this kind.
≈3
Distinctive · estimate
This author's own choices. Worth a look.
3
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Distinctive: line 23
One job per skill: If a skill needs "and" to describe it, split it.
- Very specific: line 27
The
descriptiondecides when the skill loads: Write what it does, then "Use when …" with the real phrases a user would say. - Very specific: line 45
Create or edit skills/<name>/SKILL.md.
- Distinctive: line 46
Add or update its row in the Skills table in README.md, keeping the table alphabetical.
- Very specific: line 57
Commit with Conventional Commits: feat: Add <name> skill, fix(<name>): …, docs: ….
- Distinctive: line 64
Add files outside this layout without a reason stated in the pull request.
≈ “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
Guidance for AI coding agents (Claude Code, Codex, Cursor, Copilot, and others) working in this repository. Humans: see CONTRIBUTING.md.
What this repo is
A collection of Agent Skills. Each skill is one folder under
skills/ with a SKILL.md, and the repo doubles as a Claude Code plugin marketplace.
.claude-plugin/marketplace.json catalogue: lists the plugin and where it lives ("./")
.claude-plugin/plugin.json the plugin: name, version, metadata
skills/<name>/SKILL.md one skill per folder
skills/<name>/references/ optional docs the skill links to
skills/<name>/scripts/ optional helper scripts the skill runs
README.md install steps and the skills table
site/ skills.jishanahmed.in (site/build.py), rebuilt on every push to mainRules for skills
- One job per skill. If a skill needs "and" to describe it, split it.
- Folder name =
namein the frontmatter: lowercase letters, digits, and hyphens, at most 64 characters. Never rename a published skill; users rely on the name. - Frontmatter has exactly
nameanddescription, unless a feature needs more. - The
descriptiondecides when the skill loads. Write what it does, then "Use when …" with the real phrases a user would say. Keep it under about 1024 characters. - The body is instructions for an agent: imperative, ordered steps, with commands it can run. No marketing, no history, no filler.
- Repository and user rules come first. A skill must defer to the project's own
conventions (
CONTRIBUTING.md,CLAUDE.md,AGENTS.md, linters, templates). - Safe by default. Skills never push, publish, delete, force anything, skip hooks, or contact external services unless the user asks for that exact action. Say so in the skill.
- Honest by design. Skills must not tell an agent to hide its involvement, fake results, or claim checks that did not run.
- No secrets, no personal data, no machine-specific paths in skills or examples.
- Keep
SKILL.mdunder about 500 lines. Move long material intoreferences/and link it, so it loads only when needed. - Scripts must be safe to read before running: dependency-free where possible, with no network calls unless that is the skill's purpose.
When you add or change a skill
- Create or edit
skills/<name>/SKILL.md. - Add or update its row in the Skills table in
README.md, keeping the table alphabetical. - Bump
versionin.claude-plugin/plugin.json: minor for a new skill (0.2.0 → 0.3.0), patch for fixes and wording (0.2.0 → 0.2.1). Without a bump, Claude Code users do not receive the change. Validate (both must pass):
claude plugin validate --strict . npx skills add . --list- Commit with Conventional Commits:
feat: Add <name> skill,fix(<name>): …,docs: …. One skill per commit.
Do not
- Edit
LICENSE. - Change
namein either manifest; it would break every existing install. - Add files outside this layout without a reason stated in the pull request.
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.

