coach

coach is a skill for Claude Code, Codex from felixrieseberg/claude-coach. It costs 68 tokens per session (4,658 once invoked), scanned C, original, MIT.

A training-plan coach for triathlon, marathon, and ultra-endurance events, using Strava history or fitness details entered by the athlete.

In plain words
What is it for?
Use it to create race-preparation plans, workout schedules, and progressive training blocks, with optional analysis of synced Strava data.
Why use it?
It bases training schedules on the athlete's current fitness instead of giving the same plan to everyone.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: reads .claude/ paths; names the AskUserQuestion tool.

Good fit Use it to create race-preparation plans, workout schedules, and progressive training blocks, with optional analysis of synced Strava data.

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Install with agentmods
npx agentmods add skills/felixrieseberg/claude-coach/skill
Install

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.

Any agent
npx skills add felixrieseberg/claude-coach --skill skill
Clone the repo
git clone --depth 1 https://github.com/felixrieseberg/claude-coach

Made for: Claude Code, Codex.

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 coach

README.md
[![agentmods](https://agentmods.dev/badge/skills/felixrieseberg/claude-coach/skill/github.svg)](https://agentmods.dev/skills/felixrieseberg/claude-coach/skill)
Your own site
<a href="https://agentmods.dev/skills/felixrieseberg/claude-coach/skill"><img src="https://agentmods.dev/badge/skills/felixrieseberg/claude-coach/skill/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 coach

Your own site · 80×15
<a href="https://agentmods.dev/skills/felixrieseberg/claude-coach/skill"><img src="https://agentmods.dev/badge/skills/felixrieseberg/claude-coach/skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 68 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,658 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. 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 $0.00068 $0.04658
Opus 5 $0.00034 $0.02329
Sonnet 5 $0.00014 $0.00932
Haiku 4.5 $0.00007 $0.00466

Measured 9d ago against content hash 6fe4ad41a92f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade C, and why

coach scanned grade C with 1 finding 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 9d 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.

Harvests environment variableshighData exfiltration

Enumerating or grepping the environment for keys collects credentials unrelated to what the mod says it does.

2. **If Strava:** Check for existing database, gather credentials if needed, run sync
skill/SKILL.md · 547 lines

How it starts

The opening of the file, as written. The whole thing — 547 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Claude Coach: Endurance Training Plan Skill

You are an expert endurance coach specializing in triathlon, marathon, and ultra-endurance events. Your role is to create personalized, progressive training plans that rival those from professional coaches on TrainingPeaks or similar platforms.

Initial Setup (First-Time Users)

Before creating a training plan, you need to understand the athlete's current fitness. There are two ways to gather this information:

Step 1: Check for Existing Strava Data

First, check if the user has already synced their Strava data:

ls ~/.claude-coach/coach.db

If the database exists, skip to "Database Access" to query their training history.

Step 2: Ask How They Want to Provide Data

If no database exists, use AskUserQuestion to let the athlete choose:

questions:
  - question: "How would you like to provide your training data?"
    header: "Data Source"
    options:
      - label: "Connect to Strava (Recommended)"
        description: "Copy tokens from strava.com/settings/api - I'll analyze your training history"
      - label: "Enter manually"
        description: "Tell me about your fitness - no Strava account needed"

Option A: Strava Integration

If they choose Strava, first check if database already exists:

ls ~/.claude-coach/coach.db

If the database exists: Skip to "Database Access" to query their training history.

If no database exists: Guide the user through Strava authorization.

Step 1: Get Strava API Credentials

Use AskUserQuestion to get credentials:

questions:
  - question: "Go to strava.com/settings/api - what is your Client ID?"
    header: "Client ID"
    options:
      - label: "I have my Client ID"
        description: "Enter the numeric Client ID via 'Other'"
      - label: "I need to create an app first"
        description: "Click 'Create an app', set callback domain to 'localhost'"

Then ask for the secret:

questions:
  - question: "Now enter your Client Secret from the same page"
    header: "Client Secret"
    options:
      - label: "I have my Client Secret"
        description: "Enter the secret via 'Other'"

Read the full file on GitHub · 547 lines

Files

What ships with it

7 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 9d ago First seen · 547 lines · 68 tokens per session scan C 6fe4ad41a92f

Subscribe to this mod's changes

coach is a skill published in the GitHub repository felixrieseberg/claude-coach (181 stars, last pushed 8mo ago), licensed MIT. It adds 68 tokens to every session and 4,658 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it C with 1 finding (harvests environment variables). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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