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 agentmods add skills/aiming-lab/metaclaw/codebase-navigationnpx skills add aiming-lab/MetaClaw --skill codebase-navigationgit clone --depth 1 https://github.com/aiming-lab/MetaClawWhat 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 | $0.00043 | $0.00247 |
| Opus 5 | $0.00022 | $0.00123 |
| Sonnet 5 | $0.00009 | $0.00049 |
| Haiku 4.5 | $0.00004 | $0.00025 |
Grade A, and why
codebase-navigation 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 2d 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.
What it actually says
Codebase Navigation
Before modifying unfamiliar code, build a mental model.
Exploration strategy:
- Start with entry points:
main.py,__init__.py,index.ts,App.tsx. - Follow imports to understand dependency structure.
- Find the data model first — it shapes everything else.
- Read tests: they document expected behavior better than comments.
- Check git log: recent commits explain why things are the way they are.
Efficient search:
- Use file pattern search (glob) to find files by name/extension.
- Use content search (grep) to find where a function/class is defined vs. called.
- Search for the error message text to find the source location directly.
Anti-patterns:
- Modifying code without reading it first.
- Assuming file structure from another codebase.
- Grepping without a clear hypothesis of what you are looking for.
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.
- 2d ago First seen · 27 lines · 43 tokens per session scan A eef0a7e9b425
codebase-navigation is a skill published in the GitHub repository aiming-lab/MetaClaw (3,494 stars, last pushed 2mo ago), licensed MIT. It adds 43 tokens to every session and 247 once invoked, about $0.0002 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.
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