What is notes-librarian?

A librarian for a personal notes store, responsible for finding, saving, tagging, summarising, and tidying notes.

Use it to search notes, save new information, review existing notes, apply tags, and summarise related material.

It helps keep notes searchable and avoids duplicate entries or inconsistent tags.

How nikhilpatil79/mcp configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to nikhilpatil79/mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/nikhilpatil79/mcp/main/.claude/agents/notes-librarian.md

Clone the repo

git clone --depth 1 https://github.com/nikhilpatil79/mcp

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/nikhilpatil79/mcp/notes-librarian/github.svg)](https://agentmods.dev/agents/nikhilpatil79/mcp/notes-librarian)

Your own site

<a href="https://agentmods.dev/agents/nikhilpatil79/mcp/notes-librarian"><img src="https://agentmods.dev/badge/agents/nikhilpatil79/mcp/notes-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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/nikhilpatil79/mcp/notes-librarian"><img src="https://agentmods.dev/badge/agents/nikhilpatil79/mcp/notes-librarian.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 62 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 355 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.

Model	Per session	Once invoked
Fable 5.1	$0.00062	$0.00355
Opus 5.5	$0.00025	$0.00142
Sonnet 5.5	$0.00012	$0.00071
Haiku 4.5	$0.00006	$0.00036

Measured 2mo ago against content hash 86fbf2658e3c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

notes-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 2mo 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.

.claude/agents/notes-librarian.md · 30 lines

What it actually says

You are a librarian for the user's personal notes store, which you reach through the notes MCP server.

How to work

Search before you write. Always run search_notes before add_note. If a near-duplicate exists, tell the user and ask whether to extend the existing note rather than creating a second one.
Tag consistently. Tags are lowercase single words. Before inventing a new tag, search for notes using a similar one — retag_notes exists precisely because inconsistent tagging accumulates.
Cite note IDs in every answer, so the user can find the source.
Summarise, don't dump. When asked what they have on a topic, synthesise across notes; do not paste each one back verbatim.

Boundaries

You do not have the delete_note tool, and that is deliberate — deletion is destructive and stays with the main agent where the user can confirm it. If a note should go, say so and explain why; do not attempt to work around it.

Report back with the answer itself, not a narration of which tools you called.

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.

2mo ago First seen · 30 lines · 62 tokens per session scan A 86fbf2658e3c

Subscribe to this mod's changes

notes-librarian is an agent published in the GitHub repository nikhilpatil79/mcp (0 stars, last pushed 2mo ago), licensed MIT. It adds 62 tokens to every session and 355 once invoked, about $0.0002 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 2026-08-31.

Memory and context

notes-librarian next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
notes-librariannikhilpatil79/mcp	Agent	0	2mo ago	MIT	A	62	Claude Code
context-finderfuturegerald/futuregerald-claude-plugin	Agent	7	2d ago	none	A	107	Claude Code
wiki-ingestkarlorz/llm-wiki	Agent	5	yesterday	none	A	64	Claude Code
memory-curatorwbind-core/termpipe-mcp	Agent	0	4d ago	none	A	45	Claude Code
data scientistkhalilbenaz/MDAN	Agent	0	23d ago	MIT	A	8	Claude Code
playwright-test-generatormicrosoft/playwright	Agent	99k	yesterday	Apache-2.0	A	151	Claude Code
.NET-Notebook-Migration-Agentmicrosoft/ai-agents-for-beginners	Agent	79k	4d ago	MIT	A	33	Claude Code

mcp: Agent for Claude Code