claudesec / rules
Cursor rule16 starsChanged 6 months agoMITView on GitHub
Markdown docs — frontmatter, code blocks, links, markdownlint
Where files are headingNew Cursor rule files have more rules about planning and tracking tasks, and fewer about code style.
Of the Cursor rule files we read, the 4,157 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 repository14 other files it gives its agents.
- AGENTS.mdAGENTS.md
- docs/AGENTS.mdAGENTS.md
- scanner/AGENTS.mdAGENTS.md
- scripts/AGENTS.mdAGENTS.md
- .claude/CLAUDE.mdCLAUDE.md
- CLAUDE.mdCLAUDE.md
- .cursor/rules/claude-agents-and-practices.mdcCursor rule
- .cursor/rules/claudesec-project.mdcCursor rule
- .cursor/rules/no-sensitive-paths.mdcCursor rule
- .cursor/rules/security-citations.mdcCursor rule
- ci-config-guard-claudesecSkill
- kcov-debugSkill
- lychee-redirect-triageSkill
- omc-referenceSkill
The file
We split this markdown-quality.mdc into the rules it gives an agent
3 rules. About 0 are common, 2 are distinctive, and 1 is very specific to this project.
≈0
Common · estimate
Many files like this have a rule of this kind.
≈2
Distinctive · estimate
This author's own choices. Worth a look.
1
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Distinctive: line 11
Every Markdown doc must have YAML frontmatter with:
- Very specific: line 27
Always set the language (e.g.
- Distinctive: line 33
All Markdown must pass markdownlint before commit.
≈ “Common” is an estimate: at least 1 in 5 of the 6,668 Cursor rule 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
--- description: Markdown docs — frontmatter, code blocks, links, markdownlint globs: "**/*.md" alwaysApply: false --- # Markdown Quality (ClaudeSec) ## Frontmatter Every Markdown doc must have YAML frontmatter with: - `title` — short document title - `description` — one-line summary - `tags` — list of tags (e.g. `["devsecops", "github"]`) ```yaml --- title: GitHub Actions Security description: Secure CI/CD with GitHub Actions tags: [github, ci-cd, security] --- ``` ## Code Blocks - Always set the **language** (e.g. ` ```bash `, ` ```yaml `). - Code examples must be **tested and runnable**; avoid pseudocode unless explicitly noted. ## Links & Lint - Links must be **valid** (no broken references). - All Markdown must pass **markdownlint** before commit.
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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.