Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/macakdev/gc-mcp/claude-mdgit clone --depth 1 https://github.com/macakdev/GC-MCPWhat 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 | $0.01152 | $0.01152 |
| Opus 5 | $0.00576 | $0.00576 |
| Sonnet 5 | $0.00230 | $0.00230 |
| Haiku 4.5 | $0.00115 | $0.00115 |
Grade A, and why
GC-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 2d 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.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
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.
- 2d ago First seen · 67 lines · 1,152 tokens per session scan A 50d5d36dfa86
GC-MCP CLAUDE.md is an instructions file published in the GitHub repository macakdev/GC-MCP (4 stars, last pushed 23d ago), with no licence file. It adds 1,152 tokens to every session, about $0.0058 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.
Other instructions, from other repositories
gccli CLAUDE.md
Instructions for bpauli/gccli, covering claude.md, project overview, build & quality commands, architecture and key packages.
mcp-garmin CLAUDE.md
Claude Code instructions for mskerwiderski/mcp-garmin, covering mcp-garmin, rules that are easy to break, working on it and deployment.
garmin-connect-mcp AGENTS.md
Instructions for eddmann/garmin-connect-mcp: Prefer make targets over direct commands. Run make help to see available targets.
garmin-connect-cli AGENTS.md
Instructions for eddmann/garmin-connect-cli: Prefer make targets over direct commands. Run make help to see available targets.
garminconnect-mcp GEMINI.md
Gemini CLI instructions for LePomas/garminconnect-mcp, covering gemini project instructions: garminconnect-mcp, project overview, building and running, setup and edit .env with garminemail and garminpassword.
garminconnect-mcp AGENTS.md
AGENTS.md instructions for LePomas/garminconnect-mcp, covering garmin mcp agent guidance and privacy defaults.