Borrowing it
Nothing to install: this file belongs to cyanheads/openfda-mcp-server. 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/cyanheads/openfda-mcp-server/main/CLAUDE.mdgit clone --depth 1 https://github.com/cyanheads/openfda-mcp-serverWrote 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/cyanheads/openfda-mcp-server/claude-md)<a href="https://agentmods.dev/instructions/cyanheads/openfda-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/cyanheads/openfda-mcp-server/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/cyanheads/openfda-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/cyanheads/openfda-mcp-server/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 | $0.08061 | $0.08061 |
| Opus 5.5 | $0.03224 | $0.03224 |
| Sonnet 5.5 | $0.01612 | $0.01612 |
| Haiku 4.5 | $0.00806 | $0.00806 |
Grade A, and why
openfda-mcp-server 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 9d 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.
This is a copy
75% identical to obsidian-mcp-server AGENTS.md — 406 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 400 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent Protocol
Server: openfda-mcp-server
Version: 0.9.1
Framework: @cyanheads/mcp-ts-core ^0.13.18
Engines: Bun ≥1.4.0, Node ≥24.0.0
MCP SDK: @modelcontextprotocol/server ^2.4.0 (via the framework)
Zod: ^4.6.7
Read the framework docs first:
node_modules/@cyanheads/mcp-ts-core/CLAUDE.mdcontains the full API reference — builders, Context, error codes, exports, patterns. This file covers server-specific conventions only.
Design doc:
docs/design.mdis the source of truth for the tool surface, error handling, config, and implementation notes. Read it before adding or modifying tools.
What's Next?
When the user asks what to do next, what's left, or needs direction, suggest relevant options based on the current project state:
- Re-run the
setupskill — ensures CLAUDE.md, skills, structure, and metadata are populated and up to date with the current codebase - Run the
design-mcp-serverskill — if the tool/resource surface hasn't been mapped yet, work through domain design - Add tools/resources/prompts — scaffold new definitions using the
add-tool,add-app-tool,add-resource,add-promptskills - Add services — scaffold domain service integrations using the
add-serviceskill - Add tests — scaffold tests for existing definitions using the
add-testskill - Field-test definitions — exercise tools/resources/prompts with real inputs using the
field-testskill, get a report of issues and pain points - Run
devcheck— lint, format, typecheck, and security audit - Run the
security-passskill — audit handlers for MCP-specific security gaps: output injection, scope blast radius, input sinks, tenant isolation - Run the
polish-docs-metaskill — finalize README, CHANGELOG, metadata, and agent protocol for shipping - Run the
maintenanceskill — investigate changelogs, adopt upstream changes, and sync skills afterbun update --latest
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.
- 9d ago Changed · +1 lines · +50 tokens per session 588a1b49c3ae
- 11d ago Changed · +13 lines · +721 tokens per session f966d73fb811
- 12d ago Changed 0ac9e10c6c79
- 24d ago Changed · +1 lines · +37 tokens per session 628b07018705
- 1mo ago Changed · +4 lines · +567 tokens per session 50ed8f11a80f
- 1mo ago Changed · +15 lines · +513 tokens per session eb63c739769b
- 1mo ago Changed · +9 lines · +514 tokens per session f429e9a2307e
- 2mo ago First seen · 357 lines · 5,659 tokens per session scan A 2acb07ee9f25
openfda-mcp-server CLAUDE.md is an instructions file published in the GitHub repository cyanheads/openfda-mcp-server (4 stars, last pushed 11d ago), licensed Apache-2.0. It adds 8,061 tokens to every session, about $0.0322 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 75% identical to obsidian-mcp-server AGENTS.md, differing in 406 lines, and is treated as a copy.
openfda-mcp-server CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| openfda-mcp-server CLAUDE.mdcyanheads/openfda-mcp-server | Instructions file | 4 | 11d ago | Apache-2.0 | A | 8,061 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |