Borrowing it
Nothing to install: this file belongs to rwestergren/hevy-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/rwestergren/hevy-mcp/main/AGENTS.mdgit clone --depth 1 https://github.com/rwestergren/hevy-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/rwestergren/hevy-mcp/agents-md)<a href="https://agentmods.dev/instructions/rwestergren/hevy-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/rwestergren/hevy-mcp/agents-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/rwestergren/hevy-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/rwestergren/hevy-mcp/agents-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 | $0.02941 | $0.02941 |
| Opus 5.5 | $0.01176 | $0.01176 |
| Sonnet 5.5 | $0.00588 | $0.00588 |
| Haiku 4.5 | $0.00294 | $0.00294 |
Grade A, and why
hevy-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 1mo 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
88% identical to hevy-mcp copilot-instructions.md — 70 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 — 357 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent Instructions for hevy-mcp
ALWAYS follow these instructions first and only fallback to search or additional context if the information here is incomplete or found to be in error.
Project Overview
- hevy-mcp is a Model Context Protocol (MCP) server for the Hevy Fitness API, enabling AI agents to manage workouts, routines, exercise templates, and folders via the Hevy API.
- The codebase is TypeScript (Node.js v24+), with a clear separation between tool implementations (
src/tools/), generated API clients (src/generated/), and utility logic (src/utils/). - API client code is generated from the OpenAPI spec using Kubb. Do not manually edit generated files.
- Type Safety: The project uses Zod schema inference for type-safe tool parameters, eliminating manual type assertions and ensuring compile-time type safety.
Git & Workflow Standards
- Conventional Commits: Always use the conventional commit format (e.g.,
feat:,fix:,refactor:,build:,ci:,chore:,docs:,style:,test:). - GitHub Squash and Merge: When using "Squash and Merge" on GitHub, always ensure the PR Title (which becomes the final commit title) follows the conventional commit format in lowercase (e.g.,
refactor: replace biome with oxlint). This is critical forsemantic-releaseto correctly identify version bumps.
Working Effectively
Bootstrap and Build Repository
Run these commands in order to set up a working development environment (npm is the package manager for this project):
-
Install dependencies:
npm install- Takes approximately 30 seconds. NEVER CANCEL - set timeout to 60+ seconds.
-
Build the project:
npm run build- Takes approximately 3-5 seconds. TypeScript compilation via tsdown.
- Always build before running the server or testing changes.
-
Run linting/formatting:
npm run check- Takes less than 1 second.
- EXPECTED WARNING: Warnings from oxlint are expected and can be ignored.
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.
- 1mo ago First seen · 357 lines · 2,941 tokens per session scan A a6f745790363
hevy-mcp AGENTS.md is an instructions file published in the GitHub repository rwestergren/hevy-mcp (0 stars, last pushed 5mo ago), licensed MIT. It adds 2,941 tokens to every session, about $0.0118 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 88% identical to hevy-mcp copilot-instructions.md, differing in 70 lines, and is treated as a copy.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
vscode model-prompts.instructions.md
Model-specific prompt authoring and registry guidelines.