What is intervals-icu?

An API workflow for Intervals.icu, a cycling-training platform that stores activities, wellness data, fitness measures, events, zones, and power records. It works alongside a separate cycling-analysis skill.

Use it to fetch wellness and activity data, export training metrics, inspect API responses, update events or wellness records, and provide data for cycling analysis.

It provides a consistent way to retrieve or update training data rather than building API requests manually.

intervals-icu — Skill for Codex by disco-trooper

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 disco-trooper/skills --skill intervals-icu

Clone the repo

git clone --depth 1 https://github.com/disco-trooper/skills

Made for: 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/disco-trooper/skills/intervals-icu/github.svg)](https://agentmods.dev/skills/disco-trooper/skills/intervals-icu)

Your own site

<a href="https://agentmods.dev/skills/disco-trooper/skills/intervals-icu"><img src="https://agentmods.dev/badge/skills/disco-trooper/skills/intervals-icu/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/disco-trooper/skills/intervals-icu"><img src="https://agentmods.dev/badge/skills/disco-trooper/skills/intervals-icu.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 3,338 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 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.

Model	Per session	Once invoked
Fable 5.1	$0.00068	$0.03338
Opus 5	$0.00034	$0.01669
Sonnet 5	$0.00014	$0.00668
Haiku 4.5	$0.00007	$0.00334

Measured 9d ago against content hash b359d4b4b42d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

intervals-icu scanned grade A 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.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/api.sh, tests/run_tests.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- **curl** - Pre-installed on most systems

intervals-icu/SKILL.md · 353 lines

How it starts

The opening of the file, as written. The whole thing — 353 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Intervals.icu API Skill

Skill Relationship

┌─────────────────┐     fetch data      ┌───────────────────┐
│  intervals-icu  │ ──────────────────► │ cycling-training  │
│   (DATA API)    │                     │    (ANALYSIS)     │
│                 │ ◄────────────────── │                   │
│ • wellness      │   interpret results │ • zone calc       │
│ • activities    │                     │ • periodization   │
│ • power curves  │                     │ • workout design  │
│ • fitness       │                     │ • load management │
└─────────────────┘                     └───────────────────┘

Usage pattern:

Use intervals-icu to fetch data from API
Use cycling-training to analyze and interpret
Use intervals-icu to update wellness/events

API wrapper for intervals.icu cycling training platform. Designed to work alongside the cycling-training skill.

Quick Start

# Set credentials (one-time)
export INTERVALS_API_KEY="your_api_key"
export INTERVALS_ATHLETE_ID="iXXXXX"

# Set skill directory for local installs
SKILLS_DIR="<path-to-your-skills-dir>"

# Use the API helper
"$SKILLS_DIR/intervals-icu/scripts/api.sh" wellness today
"$SKILLS_DIR/intervals-icu/scripts/api.sh" activities 2024-01-01 2024-01-31

Authentication

Get your API key from https://intervals.icu/settings → Developer Settings → API Key.

Find athlete ID in the URL when logged in: intervals.icu/athlete/iXXXXX/...

Rate Limiting

Intervals.icu API has rate limits. The script handles this with:

Automatic retry with exponential backoff (default: 3 attempts)
Configurable via INTERVALS_MAX_RETRIES environment variable

# Increase retries for bulk operations
export INTERVALS_MAX_RETRIES=5

If you hit rate limits frequently:

Add delays between bulk requests: sleep 1
Use date ranges instead of individual requests
Cache responses locally for analysis

Prerequisites

curl - Pre-installed on most systems
jq - brew install jq (macOS) / apt install jq (Linux)
bats-core - Optional, for tests: brew install bats-core

Read the full file on GitHub · 353 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.

9d ago First seen · 353 lines · 68 tokens per session scan A b359d4b4b42d

Subscribe to this mod's changes

intervals-icu is a skill published in the GitHub repository disco-trooper/skills (5 stars, last pushed 2mo ago), licensed MIT. It adds 68 tokens to every session and 3,338 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Analytics and metrics Claude Code Training agent-skills cursor cycling fitness

intervals-icu