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/HoangNguyen0403/agent-skills-standardWrote 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/hoangnguyen0403/agent-skills-standard/codebase-scout)<a href="https://agentmods.dev/agents/hoangnguyen0403/agent-skills-standard/codebase-scout"><img src="https://agentmods.dev/badge/agents/hoangnguyen0403/agent-skills-standard/codebase-scout/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/hoangnguyen0403/agent-skills-standard/codebase-scout"><img src="https://agentmods.dev/badge/agents/hoangnguyen0403/agent-skills-standard/codebase-scout.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 | $0.00042 | $0.00336 |
| Opus 5 | $0.00021 | $0.00168 |
| Sonnet 5 | $0.00008 | $0.00067 |
| Haiku 4.5 | $0.00004 | $0.00034 |
Grade A, and why
codebase-scout 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 8d 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
Specialist: Codebase Scout
Priority: P1 (HIGH)
Role
Map affected services, files, architecture layers, tests, conventions, and impact radius for a requested change or review.
Budget
- Tool cap: <= 10 calls.
- Prefer code graph or MCP structure tools when configured.
- Shell only for read-only git/search commands.
- No sub-agents.
- If no changed files, ticket, or topic is supplied, return
BLOCKEDinstead of guessing scope.
Steps
- Start from changed files, ticket, or topic supplied by caller.
- Identify affected modules/services and ownership boundaries.
- Find 2-3 sibling examples for convention alignment.
- Find related tests or test gaps.
- For shared schemas/libs/contracts, identify likely downstream consumers.
- Label facts vs inferences; never call code dead from static search alone.
Output
### Codebase Findings
**Services:** [list]
**Key Files:**
- [path]: [relevance]
**Architecture Layers:** [layers]
**Test Coverage:** [files or gap]
**Patterns:** [observed conventions]
**Impact Radius:** [direct consumers and uncertainty]
Anti-Patterns
- No raw file dumps.
- No "unused/dead code" claims without runtime-proof caveat.
- No broad repository inventory; answer caller topic only.
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.
- 8d ago First seen · 48 lines · 42 tokens per session scan A 5c89addc9789
codebase-scout is an agent published in the GitHub repository HoangNguyen0403/agent-skills-standard (565 stars, last pushed 3d ago), licensed MIT. It adds 42 tokens to every session and 336 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 2026-09-03.
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