What is notion-mcp CLAUDE.md?

Project instructions for a Notion MCP server, a program that lets compatible coding agents communicate with Notion. They describe its TypeScript source layout, authentication, commands, resources, and development process.

Use them when building, testing, packaging, or extending the Notion server, including its command-line setup, Notion client, configuration storage, prompts, and resources.

They explain how the server is packaged, configured, tested, and kept secure, so changes can follow the project’s intended architecture.

How shck-dev/notion-mcp configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to shck-dev/notion-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/shck-dev/notion-mcp/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/shck-dev/notion-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/instructions/shck-dev/notion-mcp/claude-md/github.svg)](https://agentmods.dev/instructions/shck-dev/notion-mcp/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/shck-dev/notion-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/shck-dev/notion-mcp/claude-md/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/instructions/shck-dev/notion-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/shck-dev/notion-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 2,310 This file is loaded in full into every session.

When invoked 2,310 The same file — it is already loaded in full.

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	$0.02310	$0.02310
Opus 5.5	$0.00924	$0.00924
Sonnet 5.5	$0.00462	$0.00462
Haiku 4.5	$0.00231	$0.00231

Measured 2mo ago against content hash d9669a8550ae, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

notion-mcp CLAUDE.md 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.md · 111 lines

How it starts

The opening of the file, as written. The whole thing — 111 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Notion MCP Server

MCP server for Notion using internal API (cookie auth, token_v2). No workspace admin or OAuth needed.

Package

npm: @shck-dev/notion-mcp (currently 0.5.2)
GitHub: shck-dev/notion-mcp
Runtime: ships a bundled, node-compatible dist/server.js (#!/usr/bin/env node), so npx @shck-dev/notion-mcp works without Bun. Built with bun build (bun run build); dev/test still use Bun.
License: MIT

Architecture

src/
├── server.ts              # Thin stdio entry; `init` argv → CLI wizard
├── mcp-handler.ts         # MCP protocol: TOOLS registry + JSON-RPC routing (testable, no transport)
├── notion-client.ts       # loadConfig() (env → file), notionPost(), parsePageId()
├── config-store.ts        # ~/.notion-mcp/config.json read/write (0600); NOTION_MCP_CONFIG_DIR override
├── cli-init.ts            # `notion-mcp init` interactive wizard (reads cURL from stdin)
├── guide.ts               # SETUP_GUIDE text (shared: CLI, prompt, resource)
├── prompts.ts             # notion_setup, notion_search_export
├── resources.ts           # notion://guide (static), notion://recent (dynamic)
├── transport.ts           # stdio JSON-RPC newline-delimited transport
├── notion-files.ts        # uploadImageFile(), uploadImagesForBlocks(), buildImagePatchOps(), resolveImages()
├── types.ts               # NotionConfig, NotionBlock interfaces
├── tools/
│   ├── init.ts            # parseCurl(), resolveSpaces(), notionInit() — the notion_init tool
│   ├── search.ts          # notion_search
│   ├── export.ts          # notion_export_page (resolves images; accepts image_dir for local download)
│   ├── import.ts          # notion_import_page(_from_file), notion_append_to_page(_from_file), buildCreateOps()
│   ├── create-page.ts     # notion_create_page, notion_create_page_from_file
│   ├── images.ts          # notion_add_image (local upload or external URL reference)
│   └── comments.ts        # notion_list_comments, notion_add_comment (anchor_text), notion_reply_comment
└── markdown/
    ├── to-notion.ts       # richText() + markdownToNotionBlocks()
    └── from-notion.ts     # richTextToMarkdown() + blocksToMarkdown() (child page → sub-page link)

Read the full file on GitHub · 111 lines

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 · 111 lines · 2,310 tokens per session scan A d9669a8550ae

Subscribe to this mod's changes

notion-mcp CLAUDE.md is an instructions file published in the GitHub repository shck-dev/notion-mcp (2 stars, last pushed 4mo ago), licensed MIT. It adds 2,310 tokens to every session, about $0.0092 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.

ai claude markdown mcp mcp-server model-context-protocol

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notion-mcp: Instructions file for Claude Code