codebase-summary

codebase-summary is a skill for Claude Code, Codex from brazil-bench/pourpoise. It costs 82 tokens per session (2,926 once invoked), scanned A, original, Apache-2.0.

A codebase analysis and documentation tool that explains a software project’s structure, parts, interfaces, and workflows.

In plain words
What is it for?
Creating files such as AGENTS.md, a guide for AI coding agents, README.md, or CONTRIBUTING.md, plus structured project documentation and consistency checks.
Why use it?
It gives developers and AI assistants a shared description of an unfamiliar codebase, reducing the time spent tracing how the system works.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/brazil-bench/pourpoise/codebase-summary
Any agent
npx skills add brazil-bench/pourpoise --skill codebase-summary
Clone the repo
git clone --depth 1 https://github.com/brazil-bench/pourpoise

Made for: Claude Code, Codex.

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 codebase-summary

README.md
[![agentmods](https://agentmods.dev/badge/skills/brazil-bench/pourpoise/codebase-summary.svg)](https://agentmods.dev/skills/brazil-bench/pourpoise/codebase-summary)
Your own site
<a href="https://agentmods.dev/skills/brazil-bench/pourpoise/codebase-summary"><img src="https://agentmods.dev/badge/skills/brazil-bench/pourpoise/codebase-summary.svg" alt="Measured on agentmods" height="20"></a>
Per session 82 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,926 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00082 $0.02926
Opus 5 $0.00041 $0.01463
Sonnet 5 $0.00016 $0.00585
Haiku 4.5 $0.00008 $0.00293

Measured 4d ago against content hash a928f2d2a964, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

codebase-summary 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 4d 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.

skills/codebase-summary/SKILL.md · 314 lines

How it starts

The opening of the file, as written. The whole thing — 314 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Codebase Summary

Overview

This sop analyzes a codebase and generates comprehensive documentation including structured metadata files that describe the system architecture, components, interfaces, and workflows. It can create targeted documentation files like AGENTS.md (README for AI agents), README.md, CONTRIBUTING.md, or generate a complete documentation ecosystem. The documentation is organized to make it easy for AI assistants to understand the system and help with development tasks.

Parameters

  • output_dir (optional, default: ".sop/summary"): Directory where documentation will be stored
  • consolidate (optional, default: false): Whether to create a consolidated documentation file
  • consolidate_target (optional, default: "AGENTS.md"): Target file for consolidation (e.g., "README.md", "CONTRIBUTING.md", or custom filename). Only used if consolidate is true
  • consolidate_prompt (optional): Description of how to structure the consolidated content for the target file type (e.g., Reference the AGENTS.md example below for the default "consolidate_prompt"). Only used if consolidate is true
  • check_consistency (optional, default: true): Whether to check for inconsistencies across documents
  • check_completeness (optional, default: true): Whether to identify areas lacking sufficient detail
  • update_mode (optional, default: false): Whether to update existing documentation based on recent changes
  • codebase_path (optional, default: current directory): Path to the codebase to analyze

Constraints for parameter acquisition:

  • You MUST ask for all parameters upfront in a single prompt rather than one at a time
  • You MUST support multiple input methods including:
    • Direct input: Text provided directly in the conversation
    • File path: Path to a local file containing codebase information
    • Directory path: Path to the codebase to analyze
    • Other methods: You SHOULD be open to other ways the user might want to specify the codebase
  • You MUST use appropriate tools to access content based on the input method
  • You MUST confirm successful acquisition of all parameters before proceeding
  • You MUST validate that the codebase_path exists and is accessible
  • If consolidate is false, you MUST inform the user that consolidate_target and consolidate_prompt will be ignored

Read the full file on GitHub · 314 lines

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. 4d ago First seen · 314 lines · 82 tokens per session scan A a928f2d2a964

Subscribe to this mod's changes

codebase-summary is a skill published in the GitHub repository brazil-bench/pourpoise (11 stars, last pushed 7mo ago), licensed Apache-2.0. It adds 82 tokens to every session and 2,926 once invoked, about $0.0004 per session on Opus 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.

Related

Other skills, from other repositories

systematic-debugging

Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.

obra/superpowers · 21 tokens

brainstorming

You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.

obra/superpowers · 37 tokens

auto-perf-optimize

Run agent-driven VS Code performance or memory investigations. Use when asked to launch Code OSS, automate a VS Code scenario, run the Chat memory smoke runner, capture renderer heap snapshots, take workflow screenshots, compare run summaries, or drive a repeatable scenario before heap-snapshot analysis.

microsoft/vscode · 62 tokens

chat-perf

Run chat perf benchmarks and memory leak checks against the local dev build or any published VS Code version. Use when investigating chat rendering regressions, validating perf-sensitive changes to chat UI, or checking for memory leaks in the chat response pipeline.

microsoft/vscode · 51 tokens

chat-pet-sprite-creation

Use when creating or changing VS Code chat pet sprite art, sprite sheets, state animations, eye treatments, Stable/Insiders variants, or pet transitions under src/vs/workbench/contrib/chat/browser/widget/media/chatPet.

microsoft/vscode · 53 tokens

cpu-profile-analysis

Analyze V8/Chrome CPU profiles (.cpuprofile) and DevTools trace files (Trace-.json). Use when: profiling performance, investigating slow functions, comparing code paths, finding bottlenecks, analyzing timeToRequest, understanding call trees from sampling profiler data, analyzing layout/paint/rendering, investigating…

microsoft/vscode · 71 tokens