briefing

briefing is a skill for Claude Code from rlacombe/switchback-running. It costs 6 tokens per session (132 once invoked), scanned A, original, MIT.

A coaching-note workflow for Intervals.icu, a training platform that records workouts and fitness data. It posts a short briefing as a calendar note for the day.

In plain words
What is it for?
Reading the training knowledge base, checking today's workouts and wellness data, reviewing seven-day fitness trends, and posting concise workout guidance.
Why use it?
It combines planned workouts, recovery information, and recent fitness trends into one note the athlete can read alongside the day's training.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Good fit Reading the training knowledge base, checking today's workouts and wellness data, reviewing seven-day fitness trends, and posting concise workout guidance.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/rlacombe/switchback-running/briefing
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 rlacombe/switchback-running --skill briefing
Clone the repo
git clone --depth 1 https://github.com/rlacombe/switchback-running

Made for: Claude Code.

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 briefing

README.md
[![agentmods](https://agentmods.dev/badge/skills/rlacombe/switchback-running/briefing/github.svg)](https://agentmods.dev/skills/rlacombe/switchback-running/briefing)
Your own site
<a href="https://agentmods.dev/skills/rlacombe/switchback-running/briefing"><img src="https://agentmods.dev/badge/skills/rlacombe/switchback-running/briefing/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 briefing

Your own site · 80×15
<a href="https://agentmods.dev/skills/rlacombe/switchback-running/briefing"><img src="https://agentmods.dev/badge/skills/rlacombe/switchback-running/briefing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 6 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 132 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00006 $0.00132
Opus 5.5 $0.00002 $0.00053
Sonnet 5.5 $0.00001 $0.00026
Haiku 4.5 $0.00001 $0.00013

Measured 1mo ago against content hash b9ddda78c03a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

briefing 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.

skills/briefing/SKILL.md · 15 lines

What it actually says

Calendar Note

Draft a concise note from verified facts, accepted decisions, and explicitly labeled estimates. Show its exact date, title, and body. An explicit request to save a fully specified note authorizes the write; otherwise ask once. Calendar writes require Intervals.icu: call create_event with category: NOTE, then read it back with get_event and report its ID. If the result is ambiguous, read before retrying. Never place secrets, third-party comments, or unsupported medical claims in a note.

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. 1mo ago Changed · -36 lines · -8 tokens per session b9ddda78c03a
  2. 1mo ago First seen · 51 lines · 14 tokens per session scan A aafcc06d34bf

Subscribe to this mod's changes

briefing is a skill published in the GitHub repository rlacombe/switchback-running (10 stars, last pushed 1mo ago), licensed MIT. It adds 6 tokens to every session and 132 once invoked, about $0.0000 per session on Opus 5.5. 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 2026-08-30.