Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add mhattingpete/claude-skills-marketplace --skill codebase-documentergit clone --depth 1 https://github.com/mhattingpete/claude-skills-marketplaceWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/mhattingpete/claude-skills-marketplace/codebase-documenter)<a href="https://agentmods.dev/skills/mhattingpete/claude-skills-marketplace/codebase-documenter"><img src="https://agentmods.dev/badge/skills/mhattingpete/claude-skills-marketplace/codebase-documenter/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/mhattingpete/claude-skills-marketplace/codebase-documenter"><img src="https://agentmods.dev/badge/skills/mhattingpete/claude-skills-marketplace/codebase-documenter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00052 | $0.00848 |
| Opus 5.5 | $0.00021 | $0.00339 |
| Sonnet 5.5 | $0.00010 | $0.00170 |
| Haiku 4.5 | $0.00005 | $0.00085 |
Grade A, and why
codebase-documenter scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 160 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Codebase Documenter
Generates comprehensive documentation for codebases - architecture, components, data flow, development guidelines.
When to Use
- "explain this codebase"
- "document the architecture"
- "how does this code work"
- "create developer documentation"
- "generate codebase overview"
- "create onboarding docs"
What It Documents
1. Project Overview
- Purpose & vision
- Target users
- Key features
- Technology stack
- Project status
2. Architecture
- High-level structure
- Design patterns
- Data flow
- Control flow
- Diagrams (Mermaid)
- Architectural decisions
3. Directory Structure
- Organization purpose
- Naming conventions
- Entry points
- Core modules
- Configuration locations
4. Key Components
- Major modules
- Classes & functions
- Responsibilities
- Interactions
- Extension points
- Code examples
5. External Integrations
- APIs consumed
- Databases & schemas
- Authentication
- Caching
- Message queues
- File storage
6. Data Models
- Database schema
- Data structures
- Validation
- Migrations
- Data transformations
7. Development Setup
- Prerequisites
- Installation steps
- Configuration
- Running the app
- Testing
- Debugging
- Troubleshooting
8. Development Guidelines
- Coding conventions
- Testing approach
- Error handling
- Logging
- Security practices
- Performance patterns
9. Deployment
- Build process
- Deployment steps
- Environments
- Monitoring
- Rollback procedures
10. Contributing
- Development workflow
- Code review guidelines
- Testing requirements
- Documentation updates
Approach
- Explore using Explore agent (thorough)
- Map structure with Glob
- Read critical files (README, entry points, core modules)
- Identify patterns with Grep (imports, exports)
- Trace execution paths
- Extract knowledge from docs, comments, tests
- Synthesize into cohesive documentation
Output
Creates markdown documentation:
docs/
├── README.md # Overview and quick start
├── ARCHITECTURE.md # System architecture
├── DEVELOPMENT.md # Development guide
├── API.md # API documentation
├── DEPLOYMENT.md # Deployment guide
└── CONTRIBUTING.md # Contribution guidelines
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 160 lines · 52 tokens per session scan A 070e9479a064
codebase-documenter is a skill published in the GitHub repository mhattingpete/claude-skills-marketplace (689 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 52 tokens to every session and 848 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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