ClaudeCyclingMCP: Skill for Claude Code

.claude/skills/garmin-upload/SKILL.md

garmin-upload is a skill for Claude Code from elias-ramzi/ClaudeCyclingMCP. It costs 132 tokens per session (2,256 once invoked), scanned A, original, MIT.

A tool for creating structured cycling workouts and uploading them to Garmin Connect, the service used to manage workouts on Garmin devices.

In plain words
What is it for?
It helps create interval, endurance, threshold, VO2, sweet-spot, and ramp-test workouts, then add and verify them in Garmin Connect.
Why use it?
It checks important details such as FTP, the rider’s threshold power, before creating the workout. It also verifies that Garmin stored the workout correctly after upload.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is elias-ramzi/ClaudeCyclingMCP's own configuration. It tells Claude Code how to work on ClaudeCyclingMCP itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything ClaudeCyclingMCP configures →

Part of the claude-cycling-mcp plugin — 2 skills, 1 MCP server shipped together

Reuse

Borrowing it

Nothing to install: this file belongs to elias-ramzi/ClaudeCyclingMCP. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/elias-ramzi/ClaudeCyclingMCP/main/.claude/skills/garmin-upload/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/elias-ramzi/ClaudeCyclingMCP

Made for: Claude Code.

Or install claude-cycling-mcp, the plugin that ships this one along with the rest of its 2 skills, 1 MCP server.

Wrote 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.

agentmods badge for garmin-upload

README.md
[![agentmods](https://agentmods.dev/badge/skills/elias-ramzi/claudecyclingmcp/garmin-upload/github.svg)](https://agentmods.dev/skills/elias-ramzi/claudecyclingmcp/garmin-upload)
Your own site
<a href="https://agentmods.dev/skills/elias-ramzi/claudecyclingmcp/garmin-upload"><img src="https://agentmods.dev/badge/skills/elias-ramzi/claudecyclingmcp/garmin-upload/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.

agentmods 80×15 button for garmin-upload

Your own site · 80×15
<a href="https://agentmods.dev/skills/elias-ramzi/claudecyclingmcp/garmin-upload"><img src="https://agentmods.dev/badge/skills/elias-ramzi/claudecyclingmcp/garmin-upload.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 132 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,256 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00132 $0.02256
Opus 5 $0.00066 $0.01128
Sonnet 5 $0.00026 $0.00451
Haiku 4.5 $0.00013 $0.00226

Measured 11d ago against content hash 2e70336b2508, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

garmin-upload 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 11d 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.

.claude/skills/garmin-upload/SKILL.md · 192 lines

How it starts

The opening of the file, as written. The whole thing — 192 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Uploading a cycling workout to Garmin Connect

Render the session with the ClaudeCyclingMCP server, upload it with the Garmin MCP, then verify it by fetching it back. A workout that uploads without error can still be stored wrong, and nothing tells you when that happens.

What you need first

  • FTP. Never assume one. Unless the athlete states it in the request — a stated figure beats a profile field and needs no second opinion — call get_cycling_ftp. It returns an is_stale flag; if stale, say so and confirm the figure with the athlete before rendering. Everything downstream is wrong if the FTP is wrong.
  • The session itself. If any of duration, intensity or structure is ambiguous, ask before rendering rather than guessing.

Steps

0. Check the destination exists

Confirm the Garmin MCP is connected — you need upload_workout, get_workout_by_id and delete_workout. If they are not there, say so now, before rendering. The workout can still be rendered and written to disk for manual import, but do not begin the upload procedure and do not describe the result as uploaded.

This costs one look and converts a failure at step 4 into a fact stated at the start. Observed: a full session spent building a workout for a Garmin MCP that was not connected.

1. Write the spec

Call spec_schema if the format isn't already familiar. Keep the spec flat and readable — someone should be able to see the session in it.

2. Check it before rendering

Call describe_spec. Show the block table to the user. It gives computed watts, total duration, IF and TSS. This is where a wrong number is cheap to catch; after upload it is not.

If validate_spec reports warnings, surface them — they usually mean a typo'd key was silently ignored.

3. Render

Call render_garmin. Always pass out_path — for example ~/workouts/<name>.garmin.json. Not "for example, if convenient": without it there is no artifact to re-upload, diff, or fall back to, and you will only discover you wanted one after something has gone wrong.

Read the full file on GitHub · 192 lines

Changes

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.

  1. 11d ago First seen · 192 lines · 132 tokens per session scan A 2e70336b2508

Subscribe to this mod's changes

garmin-upload is a skill published in the GitHub repository elias-ramzi/ClaudeCyclingMCP (0 stars, last pushed 18d ago), licensed MIT. It adds 132 tokens to every session and 2,256 once invoked, about $0.0007 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.

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