What is scrapbox-cosense-mcp-editable CLAUDE.md?

Project instructions for building and using a Cosense MCP server and command-line tool. Cosense is a linked-note service formerly known as Scrapbox.

Use them to retrieve, list, search, create, and edit Cosense pages, generate page URLs, and fetch linked-page context.

They document the available operations, authentication needs, build commands, tests, and usage options in one place.

How qurihara/scrapbox-cosense-mcp-editable configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to qurihara/scrapbox-cosense-mcp-editable. 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/qurihara/scrapbox-cosense-mcp-editable/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/qurihara/scrapbox-cosense-mcp-editable

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/qurihara/scrapbox-cosense-mcp-editable/claude-md/github.svg)](https://agentmods.dev/instructions/qurihara/scrapbox-cosense-mcp-editable/claude-md)

Your own site

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

Per session 1,095 This file is loaded in full into every session.

When invoked 1,095 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	$0.01095	$0.01095
Opus 5.5	$0.00438	$0.00438
Sonnet 5.5	$0.00219	$0.00219
Haiku 4.5	$0.00110	$0.00110

Measured 2mo ago against content hash 1c100f97148f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

scrapbox-cosense-mcp-editable 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 · 95 lines

How it starts

The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

MCP server for Cosense (Scrapbox). Also works as a CLI.

Commands

npm run build        # TypeScript → JavaScript (uses tsconfig.build.json)
npm run watch        # Auto-rebuild during development
npm run test         # Run Jest tests
npm run lint         # ESLint (console.log triggers warning)
npm run inspector    # Debug with MCP Inspector

Architecture

Tools (7)

Tool	Description	Auth
`get_page`	Retrieve page content, metadata, and links	-
`list_pages`	List pages with sorting and pagination (max 1000)	-
`search_pages`	Keyword search (API limit: 100 results)	-
`create_page`	Create new page. Rejects if page already exists	SID
`get_page_url`	Generate URL from page title	-
`insert_lines`	Insert text after a target line (exact match). Appends to end if not found	SID
`get_smart_context`	Get page + linked pages (1-hop/2-hop) in AI-optimized format	SID

CLI

All tools are also available as CLI subcommands (get, list, search, create, url, insert, context). Run scrapbox-cosense-mcp <command> --help for usage. Key flags:

--compact — Token-efficient output (85% smaller for list)
--json — JSON output
--project=NAME — Override project name

Skill (SKILL.md)

skills/scrapbox/SKILL.md defines a Claude Code skill that wraps the CLI. When users invoke /cosense, Claude Code reads SKILL.md and executes CLI commands via Bash. Keep SKILL.md concise — details should be discoverable via --help.

Desktop Extensions (.mcpb)

manifest.json + .mcpbignore enable Claude Desktop Extensions packaging. The .mcpb file is auto-built and attached to GitHub Releases by release-mcpb.yml. To build locally: npm install --omit=dev && npx @anthropic-ai/mcpb pack.

Directory Structure

src/cosense.ts — Scrapbox REST API client
src/routes/handlers/ — One handler module per tool
src/utils/format.ts — Response formatting, stringifyError, formatError
src/utils/sort.ts — Sorting with pinned page filtering
src/utils/markdown-converter.ts — Markdown → Scrapbox conversion (uses md2sb)
src/types/ — API response and MCP request/response type definitions
src/cli.ts — CLI entry point (args → CLI mode, no args → MCP server)
src/index.ts — Server entry point

Read the full file on GitHub · 95 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 · 95 lines · 1,095 tokens per session scan A 1c100f97148f

Subscribe to this mod's changes

scrapbox-cosense-mcp-editable CLAUDE.md is an instructions file published in the GitHub repository qurihara/scrapbox-cosense-mcp-editable (0 stars, last pushed 5mo ago), licensed MIT. It adds 1,095 tokens to every session, about $0.0044 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.

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scrapbox-cosense-mcp-editable: Instructions file for Claude Code