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project-documenter

project-documenter is a skill for Claude Code from Security-Phoenix-demo/security-skills-claude-code. It costs 236 tokens per session (4,608 once invoked), scanned A, original, MIT.

A tool that scans a software project and creates a structured set of documentation, including a README, architecture notes, API documentation, and project indexes. It can also create documents about AI systems, such as prompts, safeguards, and agent workflows.

In plain words
What is it for?
Use it when starting documentation for a new project or auditing and rebuilding documentation for an existing repository.
Why use it?
It gives developers a repeatable way to document an existing codebase and keep navigation files based on the actual documentation. This reduces scattered or duplicated project information.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions CLAUDE.md; mentions Cursor.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python .github/scripts/analyze_codebase_changes.py.

Part of the phoenix-docs-research plugin — 3 skills shipped together

not rated 81repo 5d ago A scan 236 tokens original MIT

Good fit Use it when starting documentation for a new project or auditing and rebuilding documentation for an existing repository.

Compare 6 skills from other repositories ↓
View source ↗ Security-Phoenix-demo/security-skills-claude-code
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/Security-Phoenix-demo/security-skills-claude-code
agentmods
npx agentmods add skills/security-phoenix-demo/security-skills-claude-code/project-documenter

Made for: Claude Code.

Or install phoenix-docs-research, the plugin that ships this one along with the rest of its 3 skills.

Wrote 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.

agentmods badge for project-documenter

README.md
[![agentmods](https://agentmods.dev/badge/skills/security-phoenix-demo/security-skills-claude-code/project-documenter/github.svg)](https://agentmods.dev/skills/security-phoenix-demo/security-skills-claude-code/project-documenter)
Your own site
<a href="https://agentmods.dev/skills/security-phoenix-demo/security-skills-claude-code/project-documenter"><img src="https://agentmods.dev/badge/skills/security-phoenix-demo/security-skills-claude-code/project-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.

agentmods 80×15 button for project-documenter

Your own site · 80×15
<a href="https://agentmods.dev/skills/security-phoenix-demo/security-skills-claude-code/project-documenter"><img src="https://agentmods.dev/badge/skills/security-phoenix-demo/security-skills-claude-code/project-documenter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 236 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,608 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00236 $0.04608
Opus 5.5 $0.00094 $0.01843
Sonnet 5.5 $0.00047 $0.00922
Haiku 4.5 $0.00024 $0.00461

Measured 1mo ago against content hash d71480ccd4ac, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

project-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.

plugins/phoenix-docs-research/skills/project-documenter/SKILL.md · 440 lines

How it starts

The opening of the file, as written. The whole thing — 440 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Project Documenter

Generates a three-layer, AI-native documentation hierarchy for any software repository.

Layer 1  DOC_INDEX.md    — compressed routing layer (~1–2k tokens)
Layer 2  CLAUDE.md       — engineering navigation map (150–300 lines)
Layer 3  /docs/**        — authoritative domain sub-documents (all detail here)

Core law: Sub-documents hold all detail. CLAUDE.md routes to sub-docs. DOC_INDEX.md routes to CLAUDE.md. Nothing is ever duplicated across layers. Both CLAUDE.md and DOC_INDEX.md are generated LAST, synthesized from what was actually written.

EXECUTION SEQUENCE — mandatory order, no exceptions

1. INTAKE        — Select mode, confirm existing-doc situation
2. AUDIT         — Scan + triage every existing doc (skip only for Mode 0)
3. REPO SCAN     — Build internal codebase model
4. SUB-DOCS      — Generate all domain documents (depth first)
5. CLAUDE.md     — Synthesize navigation index from sub-docs
6. DOC_INDEX.md  — Synthesize compressed routing layer from CLAUDE.md
7. REPORT        — Completion report + present_files

Step 1 — INTAKE

Ask two questions. Do not proceed until both are answered.

Q1 — Mode

How should I run this?

  [0] Express       — Brand new project, no existing docs.
                      Full pack in one run, no audit step, no questions mid-run.

  [1] General       — README, CONTRIBUTING, API_REFERENCE, MODULES, CHANGELOG, ADRs

  [2] AI / LLM      — PROMPTS, LLM_ARCHITECTURE, AGENT_WORKFLOWS, MODEL_GUARDRAILS,
                      AI_RUNBOOK, PROMPT_TESTS, LLM_COST_MODEL, AGENT_SAFETY_MODEL

  [3] Architecture  — SYSTEM_OVERVIEW, REPOSITORY_MAP, RUNTIME_FLOWS,
                      DEPENDENCY_MAP, DATA_CONTRACTS

  [4] Full          — All three domains + audit of any existing docs
  [5] Self-Heal     — Cursor .mdc rules + GitHub Actions CI + Python scripts
                      (drift detection, targeted updates, integrity verification)
                      Requires: CLAUDE.md and DOC_INDEX.md already exist.
                      Run Mode 0 or Mode 4 first if starting from scratch.

Read the full file on GitHub · 440 lines

Files

What ships with it

6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

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.

  1. 1mo ago First seen · 440 lines · 236 tokens per session scan A d71480ccd4ac

Subscribe to this mod's changes

project-documenter is a skill published in the GitHub repository Security-Phoenix-demo/security-skills-claude-code (81 stars, last pushed 5d ago), licensed MIT. It adds 236 tokens to every session and 4,608 once invoked, about $0.0009 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 2026-09-11.

Project managementWriting and docs
Related

project-documenter compared with skills from other repositories

project-documenter next to 6 skills from other repositories
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