kb-librarian

kb-librarian is an agent for Claude Code from genudo-ai/genudo_mcp. It costs 63 tokens per session (364 once invoked), scanned A, original, MIT.

A curator for Genudo knowledge tables, which are structured collections of facts that an AI agent uses when answering customers. It searches, corrects, adds, or removes those facts and can verify the result.

In plain words
What is it for?
Use it to investigate incorrect answers, create or fill knowledge tables, update stale rows, remove obsolete facts, and verify what the agent retrieves.
Why use it?
It helps fix answers based on wrong or outdated business information. It also helps keep knowledge targeted so the agent retrieves the right facts for a question.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the genudo-no-connector plugin — 6 agents shipped together

Good fit Use it to investigate incorrect answers, create or fill knowledge tables, update stale rows, remove obsolete facts, and verify what the agent retrieves.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/genudo-ai/genudo_mcp/kb-librarian
Install

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.

Clone the repo
git clone --depth 1 https://github.com/genudo-ai/genudo_mcp

Made for: Claude Code.

Or install genudo-no-connector, the plugin that ships this one along with the rest of its 6 agents.

Wrote 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.

agentmods badge for kb-librarian

README.md
[![agentmods](https://agentmods.dev/badge/agents/genudo-ai/genudo_mcp/kb-librarian/github.svg)](https://agentmods.dev/agents/genudo-ai/genudo_mcp/kb-librarian)
Your own site
<a href="https://agentmods.dev/agents/genudo-ai/genudo_mcp/kb-librarian"><img src="https://agentmods.dev/badge/agents/genudo-ai/genudo_mcp/kb-librarian/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.

agentmods 80×15 button for kb-librarian

Your own site · 80×15
<a href="https://agentmods.dev/agents/genudo-ai/genudo_mcp/kb-librarian"><img src="https://agentmods.dev/badge/agents/genudo-ai/genudo_mcp/kb-librarian.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 63 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 364 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00063 $0.00364
Opus 5 $0.00032 $0.00182
Sonnet 5 $0.00013 $0.00073
Haiku 4.5 $0.00006 $0.00036

Measured 10d ago against content hash 7d5bd5fb1bf8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

kb-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 10d 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.

genudo-plugin-no-connector/agents/kb-librarian.md · 27 lines

What it actually says

You are the Genudo Knowledge Base Librarian. You keep the facts an agent answers from correct and well-targeted.

Operating procedure:

  1. Run manage-knowledge-base for the full playbook.
  2. list_knowledge_tables → find the table whose name + when-to-use matches the topic.
  3. search_knowledge_table with the question the customer actually asked → see what the agent retrieved and which row carries the wrong fact.
  4. Fix: upsert_knowledge_points reusing the row's default_id (a row must carry every column of its table), or delete_knowledge_points for stale rows. New topic → create_knowledge_table with a when-to-use description that routes the agent correctly.
  5. Verify: re-run the same search_knowledge_table query and confirm the corrected row returns.
  6. If the wrong fact is a stable business fact the agent must always know, prefer adding it to the pipeline's global instructions via edit-pipeline-instructions (with confirmation).

Rules:

  • A wrong fact in the KB reaches every conversation — confirm every change before writing.
  • Confirm before delete_knowledge_points; there is no undo and no table-delete tool.
  • Never invent facts to fill a gap; mark unknowns and ask.
  • Never claim a fix worked without a confirming search result.
Changes

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.

  1. 10d ago First seen · 27 lines · 63 tokens per session scan A 7d5bd5fb1bf8

Subscribe to this mod's changes

kb-librarian is an agent published in the GitHub repository genudo-ai/genudo_mcp (0 stars, last pushed 10d ago), licensed MIT. It adds 63 tokens to every session and 364 once invoked, about $0.0003 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 2026-08-31.

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