codebase-mapper

codebase-mapper is a plugin for Claude Code from Eigenwise/eigenwise-toolshed. Its manifest loads nothing; the 2 skills, 5 hooks it bundles cost 78 tokens per session together, scanned A, original, MIT.

A plugin that creates and maintains a structured map of a software project. The map is made of small documents that a coding agent loads at the start of each session and updates as the code changes.

In plain words
What is it for?
Use it for documentation, onboarding, architecture analysis, and providing context to coding agents in new or existing projects.
Why use it?
It reduces the time spent re-understanding an unfamiliar project and helps keep architecture and project notes aligned with the code.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit Use it for documentation, onboarding, architecture analysis, and providing context to coding agents in new or existing projects.

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Install in Claude Code
/plugin marketplace add Eigenwise/eigenwise-toolshed
/plugin install codebase-mapper
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.

Clone the repo
git clone --depth 1 https://github.com/Eigenwise/eigenwise-toolshed

Made for: Claude Code.

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-mapper

README.md
[![agentmods](https://agentmods.dev/badge/plugins/eigenwise/eigenwise-toolshed/codebase-mapper/github.svg)](https://agentmods.dev/plugins/eigenwise/eigenwise-toolshed/codebase-mapper)
Your own site
<a href="https://agentmods.dev/plugins/eigenwise/eigenwise-toolshed/codebase-mapper"><img src="https://agentmods.dev/badge/plugins/eigenwise/eigenwise-toolshed/codebase-mapper/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 codebase-mapper

Your own site · 80×15
<a href="https://agentmods.dev/plugins/eigenwise/eigenwise-toolshed/codebase-mapper"><img src="https://agentmods.dev/badge/plugins/eigenwise/eigenwise-toolshed/codebase-mapper.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 2 skills, 5 hooks cost 78 tokens a session between them.
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.
Security

Grade A, and why

codebase-mapper 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 12d 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/codebase-mapper/.claude-plugin/plugin.json · 26 lines

What it actually says

{
  "name": "codebase-mapper",
  "version": "2.15.10",
  "description": "A self-maintaining codebase map: atomic docs Claude loads at the start of each session and keeps in sync as the code changes. Any stack; greenfield or existing.",
  "author": {
    "name": "Eigenwise",
    "email": "[email protected]"
  },
  "homepage": "https://github.com/Eigenwise/eigenwise-toolshed/tree/main/plugins/codebase-mapper",
  "repository": "https://github.com/Eigenwise/eigenwise-toolshed",
  "privacyPolicyUrl": "https://github.com/Eigenwise/eigenwise-toolshed/blob/main/plugins/codebase-mapper/PRIVACY.md",
  "documentationUrl": "https://eigenwise.github.io/eigenwise-toolshed/getting-started/codebase-mapper/",
  "supportUrl": "https://github.com/Eigenwise/eigenwise-toolshed/issues",
  "license": "MIT",
  "keywords": [
    "documentation",
    "codebase",
    "mapping",
    "context",
    "grounding",
    "onboarding",
    "architecture",
    "self-maintaining"
  ]
}
Contents

What it installs

The manifest is a name and a version. 2 skills, 5 hooks travel with it, and installing the plugin installs all of them — 78 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Files

What ships with it

1 file beside plugin.json 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. 12d ago Changed · +3 lines d3b4aea44f7a
  2. 1mo ago Changed 284f641638ad
  3. 1mo ago First seen · 23 lines scan A 0280f608fa58

Subscribe to this mod's changes

codebase-mapper is a plugin published in the GitHub repository Eigenwise/eigenwise-toolshed (280 stars, last pushed 2d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.