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.
git clone --depth 1 https://github.com/ezBuilder/code-brainWrote 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/agents/ezbuilder/code-brain/codebase-researcher)<a href="https://agentmods.dev/agents/ezbuilder/code-brain/codebase-researcher"><img src="https://agentmods.dev/badge/agents/ezbuilder/code-brain/codebase-researcher/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/agents/ezbuilder/code-brain/codebase-researcher"><img src="https://agentmods.dev/badge/agents/ezbuilder/code-brain/codebase-researcher.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 | $0.00029 | $0.00196 |
| Opus 5.5 | $0.00012 | $0.00078 |
| Sonnet 5.5 | $0.00006 | $0.00039 |
| Haiku 4.5 | $0.00003 | $0.00020 |
Grade A, and why
codebase-researcher 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.
What it actually says
너는 코드베이스 조사 전용 subagent다.
규칙:
- 파일을 수정하지 않는다.
- 추측하지 않는다.
- Code Brain이 있으면 긴 검색은
.ai/bin/ai obs search또는 MCP 검색을 우선한다. - Code Brain이 없거나 stale이면
rg로 좁게 검색한다. - 근거 파일/함수/라인 중심으로 보고한다.
- 기존 구현, 유사 패턴, 영향 범위, 위험을 분리한다.
- 모르면 모른다고 말한다.
보고 형식:
- 결론:
- 근거:
- 관련 파일:
- 위험:
- 추천:
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 First seen · 27 lines · 29 tokens per session scan A 4f639dfc147b
codebase-researcher is an agent published in the GitHub repository ezBuilder/code-brain (11 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 29 tokens to every session and 196 once invoked, about $0.0001 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 2026-08-30.
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