Borrowing it
Nothing to install: this file belongs to worldnine/scrapbox-cosense-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.
curl -O https://raw.githubusercontent.com/worldnine/scrapbox-cosense-mcp/main/CLAUDE.mdgit clone --depth 1 https://github.com/worldnine/scrapbox-cosense-mcpWrote 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.
[](https://agentmods.dev/instructions/worldnine/scrapbox-cosense-mcp/claude-md)<a href="https://agentmods.dev/instructions/worldnine/scrapbox-cosense-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/worldnine/scrapbox-cosense-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.
<a href="https://agentmods.dev/instructions/worldnine/scrapbox-cosense-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/worldnine/scrapbox-cosense-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.03407 | $0.03407 |
| Opus 5.5 | $0.01363 | $0.01363 |
| Sonnet 5.5 | $0.00681 | $0.00681 |
| Haiku 4.5 | $0.00341 | $0.00341 |
Grade A, and why
scrapbox-cosense-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 13d 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.
How it starts
The opening of the file, as written. The whole thing — 129 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 (no real API calls)
COSENSE_E2E=true npm run test # Also run the E2E tests against the real Cosense API — sparingly, e.g. once before merging
npm run lint # ESLint (console.log triggers warning)
npm run inspector # Debug with MCP Inspector
Architecture
Tools (11, or 9 without COSENSE_ENABLE_DELETE)
| 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 | PAT/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 | PAT/SID |
edit_lines |
Replace target line(s) (exact match, multi-line block supported). Errors if not found. matchAll replaces every occurrence |
PAT/SID |
delete_lines |
Delete target line(s) (exact match, multi-line block supported). Refuses to delete the title line. Errors if not found. matchAll deletes every occurrence |
PAT/SID |
delete_page |
Delete a page. Registered only when COSENSE_ENABLE_DELETE=true. Errors if the page does not exist. dryRun previews |
PAT/SID |
rewrite_page |
Replace a page's entire content. Registered only when COSENSE_ENABLE_DELETE=true. Errors if the page does not exist or content is empty. dryRun previews before/after |
PAT/SID |
get_smart_context |
Get page + linked pages (1-hop/2-hop) in AI-optimized format | PAT/SID |
CLI
All tools are also available as CLI subcommands (get, list, search, create, url, insert, edit, delete-lines, delete, rewrite, context). delete and rewrite require COSENSE_ENABLE_DELETE=true and support --dry-run. Run scrapbox-cosense-mcp <command> --help for usage. Key flags:
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.
- 13d ago Changed · +7 lines · +726 tokens per session 3c016ef00ce5
- 28d ago Changed · +3 lines · +328 tokens per session a7f1c0da1344
- 1mo ago Changed · +5 lines · +302 tokens per session faf70c050f41
- 1mo ago First seen · 114 lines · 2,051 tokens per session scan A 4913997c290a
scrapbox-cosense-mcp CLAUDE.md is an instructions file published in the GitHub repository worldnine/scrapbox-cosense-mcp (54 stars, last pushed 10d ago), licensed MIT. It adds 3,407 tokens to every session, about $0.0136 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 2026-08-30.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
vscode model-prompts.instructions.md
Model-specific prompt authoring and registry guidelines.