Borrowing it
Nothing to install: this file belongs to oopsyz/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/oopsyz/mcp/master/CLAUDE.mdgit clone --depth 1 https://github.com/oopsyz/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/oopsyz/mcp/claude-md)<a href="https://agentmods.dev/instructions/oopsyz/mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/oopsyz/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/oopsyz/mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/oopsyz/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 | $0.00523 | $0.00523 |
| Opus 5.5 | $0.00209 | $0.00209 |
| Sonnet 5.5 | $0.00105 | $0.00105 |
| Haiku 4.5 | $0.00052 | $0.00052 |
Grade B, and why
mcp CLAUDE.md scanned grade B with 2 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.
Sends data to an external URLmediumData exfiltration
A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.
- `curl -s -X POST http://localhost:7701/cli/tmf620/catalogmgt -H "Content-Type: application/json" -d '{"command":"help","args":{"command":"catalog list"}}'` Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
For TMF620 command discovery and invocation, use the bash tool with `curl` against the HTTP CLI API. This is the preferred interface for Claude agents. This is a copy
89% identical to mcp AGENTS.md — 11 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.
What it actually says
CLAUDE
Role: da
Bootstrap: Read AGENTS.md first.
Instruction: Then read DOMAIN.md (mandatory entrypoint for this level).
Guardrail: AGENTS.md and DOMAIN.md remain the canonical contract files. Keep mutable operational detail in linked canonical artifacts, not in CLAUDE.md.
Claude Guidance
Preferred Interface
For TMF620 command discovery and invocation, use the bash tool with curl against the HTTP CLI API. This is the preferred interface for Claude agents.
- Discovery:
GET http://localhost:7701/cli/tmf620/catalogmgt - Per-command help:
POST http://localhost:7701/cli/tmf620/catalogmgtwith{"command":"help","args":{"command":"<command path>"}} - Invoke:
POST http://localhost:7701/cli/tmf620/catalogmgtwith{"command":"<command path>","args":{...}} - Stream: add
"stream": trueto the same POST body
Preferred shell pattern:
curl -s http://localhost:7701/cli/tmf620/catalogmgtcurl -s -X POST http://localhost:7701/cli/tmf620/catalogmgt -H "Content-Type: application/json" -d '{"command":"help","args":{"command":"catalog list"}}'curl -s -X POST http://localhost:7701/cli/tmf620/catalogmgt -H "Content-Type: application/json" -d '{"command":"catalog list","args":{"limit":1}}'
Source of Truth
The shared command layer lives in tmf620/commands.py.
tmf620/server.pyexposes the HTTP CLI API and MCP server
When changing command names, arguments, discovery output, or invocation behavior, update tmf620/commands.py first.
Local URLs
- Mock TMF620 API:
http://localhost:8801/tmf-api/productCatalogManagement/v5 - MCP server and HTTP CLI API:
http://localhost:7701 - HTTP CLI API endpoint:
http://localhost:7701/cli/tmf620/catalogmgt
Validation Order
When validating command behavior, prefer this order:
GET /cli/tmf620/catalogmgtPOST /cli/tmf620/catalogmgtwithhelpPOST /cli/tmf620/catalogmgtinvoke
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 · 47 lines · 523 tokens per session scan B 02d1c9895b96
mcp CLAUDE.md is an instructions file published in the GitHub repository oopsyz/mcp (3 stars, last pushed 4mo ago), licensed MIT. It adds 523 tokens to every session, about $0.0021 per session on Opus 5.5. A static security scan graded it B with 2 findings (sends data to an external url, makes network calls). It is 89% identical to mcp AGENTS.md, differing in 11 lines, and is treated as a copy.
mcp CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| mcp CLAUDE.mdoopsyz/mcp | Instructions file | 3 | 4mo ago | MIT | B | 523 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,649 | GitHub Copilot |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| vscode ai-customization.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 1,907 | GitHub Copilot |