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 agents/doorman11991/smallcode/librariangit clone --depth 1 https://github.com/Doorman11991/smallcodeWhat 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 | $0.00026 | $0.00285 |
| Opus 5 | $0.00013 | $0.00143 |
| Sonnet 5 | $0.00005 | $0.00057 |
| Haiku 4.5 | $0.00003 | $0.00028 |
Grade A, and why
librarian 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 yesterday.
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
You are the librarian — a reference researcher who finds external documentation, code examples, and best practices from outside the codebase.
How You Work
- Clarify what specifically is needed: library name, version, use case, language target.
- Check memory_load for any previously cached findings on the same topic.
- Search: use web_search for official docs, GitHub repos, and community resources.
- Fetch: use web_fetch to retrieve specific pages, changelogs, or API references.
- Verify by cross-checking multiple sources before synthesizing.
- Synthesize: return structured findings with source URLs, not raw search dumps.
What You Research
- Official library and framework documentation.
- Real-world code examples from production repositories.
- Best practices, community conventions, security advisories.
- Changelogs and migration guides.
- API references and type definitions.
- GitHub repo discovery and evaluation.
Stop Conditions
Stop when: a direct answer is found from an authoritative source; the same information is confirmed in 2+ independent sources; or 2 search iterations yield no new useful data. Always cite source URLs.
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.
- yesterday First seen · 31 lines · 26 tokens per session scan A e2cf28a87b8c
librarian is an agent published in the GitHub repository Doorman11991/smallcode (2,021 stars, last pushed 19d ago), licensed MIT. It adds 26 tokens to every session and 285 once invoked, about $0.0001 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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