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/davidmosiah/fitbit-mcp/agents-mdgit clone --depth 1 https://github.com/davidmosiah/fitbit-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/davidmosiah/fitbit-mcp/agents-md)<a href="https://agentmods.dev/instructions/davidmosiah/fitbit-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/davidmosiah/fitbit-mcp/agents-md.svg" alt="Measured on agentmods" 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 | $0.00152 | $0.00152 |
| Opus 5 | $0.00076 | $0.00076 |
| Sonnet 5 | $0.00030 | $0.00030 |
| Haiku 4.5 | $0.00015 | $0.00015 |
Grade A, and why
fitbit-mcp AGENTS.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 4d 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
95% identical to google-health-mcp AGENTS.md — 4 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
Agent Development Notes
Scope
This repo is the unofficial Fitbit MCP connector for local agent workflows.
Commands
- Install:
npm ci - Typecheck:
npm run typecheck - Build:
npm run build - Fast smoke:
npm run smoke - HTTP smoke:
npm run smoke:http - Full gate:
npm test
Rules
- Never commit OAuth client secrets, access tokens, refresh tokens, personal Fitbit data, or local config.
- Keep read-only behavior and privacy-safe summaries as the default.
- Preserve agent-ready surfaces: manifest, connection status, privacy audit, CLI UX, Hermes agent manifest, and metadata checks.
- Keep error messages actionable without exposing credentials or raw private payloads.
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.
- 4d ago First seen · 22 lines · 152 tokens per session scan A 27ccb3a729af
fitbit-mcp AGENTS.md is an instructions file published in the GitHub repository davidmosiah/fitbit-mcp (4 stars, last pushed 6d ago), licensed MIT. It adds 152 tokens to every session, about $0.0008 per session on Opus 5. A static security scan graded it A with 0 findings. It is 95% identical to google-health-mcp AGENTS.md, differing in 4 lines, and is treated as a copy.
Other instructions, from other repositories
withings-mcp AGENTS.md
AGENTS.md instructions for davidmosiah/withings-mcp, covering agent development notes, scope, commands and rules.
apple-health-mcp AGENTS.md
AGENTS.md instructions for davidmosiah/apple-health-mcp, covering agent development notes, scope, commands and rules.
withings-mcp CLAUDE.md
Instructions for akutishevsky/withings-mcp, covering claude.md, general rules, project overview, development commands and running.
icuvisor CLAUDE.md
Claude Code instructions for ricardocabral/icuvisor, covering claude.md, what this project is, authoritative documents, hard rules and project layout.
gccli CLAUDE.md
Claude Code instructions for bpauli/gccli, covering claude.md, project overview, build & quality commands, architecture and key packages.
FreeReps CLAUDE.md
Instructions for meltforce/FreeReps, covering freereps, gotchas, repository & ci/cd, data source documentation and repo documents.