Borrowing it
Nothing to install: this file belongs to brian-ln/clipboard-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/brian-ln/clipboard-mcp/main/CLAUDE.mdgit clone --depth 1 https://github.com/brian-ln/clipboard-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/brian-ln/clipboard-mcp/claude-md)<a href="https://agentmods.dev/instructions/brian-ln/clipboard-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/brian-ln/clipboard-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/brian-ln/clipboard-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/brian-ln/clipboard-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 | $0.00259 | $0.00259 |
| Opus 5 | $0.00130 | $0.00130 |
| Sonnet 5 | $0.00052 | $0.00052 |
| Haiku 4.5 | $0.00026 | $0.00026 |
Grade A, and why
clipboard-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 8d 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.
What it actually says
MacOS Clipboard MCP - Development Guide
Build & Run Commands
bun run start- Start the MCP serverbun run dev- Start development mode with hot reloadingbun run dev2- Alternative dev mode using fastmcpbun run inspect- Run with fastmcp inspectorbun run mcp-cli- Run with mcp-cli tool
Code Style Guidelines
- TypeScript with proper type safety (use zod for runtime validation)
- Error handling: use
UserErrorfor user-facing errors, include original error - Group imports: external libraries first, then node modules, then local imports
- Use template literals with
OSAfor AppleScript execution - Format: camelCase for variables/functions, PascalCase for types/interfaces
- Prefer composition over inheritance
- Use hex/base64 for binary data conversion
- Prefer const over let when variables aren't reassigned
- Use tagged template literals for special operations
Architecture
- Each clipboard operation is exposed as an MCP resource or tool
- Uses osascript for MacOS clipboard interaction via template literal functions
- Supports multiple formats (text, PNG, and binary data)
- Uses MIME type mapping for cross-platform compatibility
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.
- 8d ago First seen · 25 lines · 259 tokens per session scan A 2078fd78b9a1
clipboard-mcp CLAUDE.md is an instructions file published in the GitHub repository brian-ln/clipboard-mcp (8 stars, last pushed 1y ago), licensed MIT. It adds 259 tokens to every session, about $0.0013 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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