LLMs.txt & AI Documentation Generator
When to use
- Creating a new llms.txt for a repository
- Auditing an existing llms.txt for completeness
- Generating CLAUDE.md or AGENTS.md for AI coding agents
- Improving AI readability of a repository
Skip when
- Repository already has a complete, up-to-date llms.txt
- Task is code implementation with no documentation scope
- Repository is private/internal with no LLM discoverability need
Related
Complementary: ring:running-dev-cycle, ring:implementing-tasks
Generates llms.txt, CLAUDE.md, and AGENTS.md for repositories.
Step 1: Analyze Repository
1. Read README.md — project name, description, purpose 2. Read CONTRIBUTING.md — build, test, lint instructions (if exists) 3. Read Makefile / package.json / go.mod — build system, language, dependencies 4. Scan /docs/ — available documentation 5. Scan /api/ or OpenAPI specs — API surface 6. Read existing llms.txt / CLAUDE.md / AGENTS.md (if mode=audit) 7. Identify: language, architecture, test framework
Step 2: Generate llms.txt
Follow llmstxt.org specification exactly:
markdown# {Project Name} > {One-line description: language, what it does, license.} {Optional: architecture, key concepts, domain terminology needed to work with this project.} ## Docs - [{Doc title}]({url}): {Brief description} ## API Reference - [{API name}]({url}): {What this covers} ## Code - [{Key module}]({path}): {What this module does} ## Optional - [{Secondary resource}]({url}): {Description}
Rules:
- One H1 (project name), required
- Blockquote summary — required, include language and license
- H2 sections only (no H3+)
- Links:
[title](url): descriptionformat - File in repo root:
/llms.txt - Target: fits in ~2K tokens
MUST include: name, architecture overview, key domain concepts, links to README/CONTRIBUTING/API docs/key modules.
MUST NOT include: internal-only docs, CI/CD details, issue tracker, full dependency lists, changelog.
Step 3: Generate CLAUDE.md
Read by Claude Code at session start. Must be actionable with exact commands:
markdown# {Project Name} ## Quick Start {How to build and run locally — exact copy-pasteable commands} ## Testing {How to run tests — exact commands including single-test} ## Linting & Formatting {Lint/format commands, CI expectations} ## Architecture {Brief: layers, key directories, patterns} e.g., "Business logic in /internal/domain/, HTTP handlers in /internal/adapters/http/" ## Key Conventions {Naming conventions, error handling, logging patterns with examples} e.g., "Functions use camelCase: processTransaction()" ## Common Pitfalls {What trips up new contributors or AI agents}
Rules:
- Commands must be copy-pasteable (no placeholders)
- Architecture must name actual directories
- Conventions must have inline examples
- Keep under 3K tokens
Step 4: Generate AGENTS.md
Same structure as CLAUDE.md but vendor-neutral language.
If CLAUDE.md exists: AGENTS.md can reference it:
markdown# {Project Name} — AI Agent Context See [CLAUDE.md](./CLAUDE.md) for complete setup and conventions. ## Additional Notes {Any agent-specific guidance not in CLAUDE.md}
Audit Mode (mode=audit)
For existing files, check:
| Check | Pass Condition |
|---|---|
| llms.txt has H1 + blockquote | Required fields present |
| All links resolve | No 404s |
| Spec compliance | No H3+, no non-list content in sections |
| CLAUDE.md commands valid | All commands runnable, no stale references |
| Under token budget | llms.txt < 2K tokens, CLAUDE.md < 3K tokens |
Output
markdown## LLM Documentation Report Mode: create | audit | full Repository: {repo_path} ### Files Generated/Updated | File | Action | Tokens | |------|--------|--------| | llms.txt | Created/Updated/OK | ~{N} | | CLAUDE.md | Created/Updated/OK | ~{N} | | AGENTS.md | Created/Updated/OK | ~{N} | ### Audit Results (audit mode) | Check | Status | Details | |-------|--------|---------|

