Borrowing it
Nothing to install: this file belongs to HuginnIndustries/CodeCartographer. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/HuginnIndustries/CodeCartographer/main/CLAUDE.mdgit clone --depth 1 https://github.com/HuginnIndustries/CodeCartographerWrote 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/instructions/huginnindustries/codecartographer/claude-md)<a href="https://agentmods.dev/instructions/huginnindustries/codecartographer/claude-md"><img src="https://agentmods.dev/badge/instructions/huginnindustries/codecartographer/claude-md/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/instructions/huginnindustries/codecartographer/claude-md"><img src="https://agentmods.dev/badge/instructions/huginnindustries/codecartographer/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.02276 | $0.02276 |
| Opus 5.5 | $0.00910 | $0.00910 |
| Sonnet 5.5 | $0.00455 | $0.00455 |
| Haiku 4.5 | $0.00228 | $0.00228 |
Grade A, and why
CodeCartographer CLAUDE.md 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 — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Commands
npm ci # install (lockfile-strict)
npm run build # tsc compile to dist/ (required before publish; CI runs this)
npm test # node --experimental-strip-types --test tests/*.test.mjs
npm run smoke # end-to-end MCP smoke test against the published npm package
npm run smoke:broadside # opt-in live Broad-Side run (spends real money; needs OPENROUTER_API_KEY + a target repo)
# Run a single test file:
node --experimental-strip-types --disable-warning=ExperimentalWarning --test tests/pipeline-invariants.test.mjs
# Run the Pi extension locally against the in-tree source (no rebuild needed):
pi -e /absolute/path/to/CodeCartographer/extensions/codecarto/index.ts
Node >= 20 is the floor; CI tests on Node 22 and 24. There is no linter.
Architecture
CodeCartographer is one framework shipped through three delivery surfaces that produce byte-identical phase prompts and validation behavior. The numbering below reflects code-architecture (source-of-truth-out) ordering; the user-facing recommendation ordering in README.md is different — see "Surface priority" below.
.codecarto/— the drop-in template (Markdown + YAML, no executable code). This is both the source of truth committed in this repo and the directory that gets copied into a user's target repo oncodecarto-init.core/workspace.tsexposes it aspackagedWorkspaceDir, resolved at runtime by walking up fromcore/to find the nearestpackage.json.extensions/codecarto/— Pi extension. Registers/codecarto-*slash commands, runs phases as isolatedAgentSessionsub-agents (auto-runner.ts), renders the live widget (agent-widget.ts), and writes the HTML dashboard (dashboard-writer.ts). Thetool_callhook inindex.tsblocksbashoutright and confinesedit/writeto.codecarto/plus the configured library path.mcp-server/— MCP server exposing the workflow, library, and Broad-Side operations as JSON-RPC tools over stdio. Never spawns sub-agents; returns prompt text for the host to dispatch.
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 Changed · +32 tokens per session c48346a7b7b8
- 1mo ago Changed · +120 tokens per session 6f8ab3d7ce9a
- 1mo ago Changed · +62 tokens per session efea913a8873
- 2mo ago Changed · +2 lines · +131 tokens per session 0420703f08a5
- 2mo ago First seen · 83 lines · 1,931 tokens per session scan A 64f920875279
CodeCartographer CLAUDE.md is an instructions file published in the GitHub repository HuginnIndustries/CodeCartographer (7 stars, last pushed 4d ago), licensed MIT. It adds 2,276 tokens to every session, about $0.0091 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 2026-08-31.
CodeCartographer CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| CodeCartographer CLAUDE.mdHuginnIndustries/CodeCartographer | Instructions file | 7 | 4d ago | MIT | A | 2,276 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |