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.
npx agentmods add skills/rlacombe/switchback-running/nutritionnpx skills add rlacombe/switchback-running --skill nutritiongit clone --depth 1 https://github.com/rlacombe/switchback-runningWrote 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/skills/rlacombe/switchback-running/nutrition)<a href="https://agentmods.dev/skills/rlacombe/switchback-running/nutrition"><img src="https://agentmods.dev/badge/skills/rlacombe/switchback-running/nutrition.svg" alt="Measured on agentmods" 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 | $0.00015 | $0.01603 |
| Opus 5 | $0.00008 | $0.00801 |
| Sonnet 5 | $0.00003 | $0.00321 |
| Haiku 4.5 | $0.00002 | $0.00160 |
Grade A, and why
nutrition 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 5d 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.
How it starts
The opening of the file, as written. The whole thing — 126 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/nutrition — Post-Run Nutrition Analysis
Computes total and per-hour intake of water, carbohydrates, sodium, and caffeine from the athlete's reported fueling, then adds a summary note to the Intervals.icu event.
Step 1: Read knowledge base
Read knowledge/nutrition.md to inform the analysis with fueling targets and expert recommendations.
Step 2: Collect inputs
Ask the athlete (if not already provided) for:
- What they consumed — products, quantities, and how they were carried (e.g., "2 gels, 1 waffle, Tailwind in a flask")
- Water volume — total liters carried/consumed, and what was mixed into it (electrolyte tabs, drink mix, etc.)
Also identify the activity. If not specified, fetch the most recent activity from the last 3 days using the activities endpoint. You need the elapsed time (not moving time) to compute per-hour rates, since the athlete fuels during stops too.
Step 3: Look up nutritional data
Use the reference table below for common products. For products not listed, use your best knowledge of the product's nutrition facts — state your assumptions and invite corrections.
Common Products Reference
Gels (~1 oz / 32g packets)
| Product | CHO (g) | Sodium (mg) | Caffeine (mg) |
|---|---|---|---|
| Honey Stinger Honey Gel | 24 | 50 | 0 |
| Honey Stinger Ginsting Gel (caffeinated) | 24 | 60 | 32 |
| Honey Stinger Salted Caramel Gel (caffeinated) | 24 | 50 | 32 |
| GU Energy Gel (non-caffeinated) | 22 | 125 | 0 |
| GU Roctane Gel (caffeinated, varies) | 21 | 125 | 35 |
| SiS GO Isotonic Gel | 22 | 20 | 0 |
| SiS GO + Caffeine Gel (Double Espresso, etc.) | 22 | 20 | 75 |
| Spring Energy Awesome Sauce | 45 | 115 | 0 |
| Maurten Gel 100 | 25 | 30 | 0 |
| Maurten Gel 100 CAF 100 | 25 | 30 | 100 |
Waffles / Chews / Bars
| Product | CHO (g) | Sodium (mg) | Caffeine (mg) |
|---|---|---|---|
| Honey Stinger Honey Waffle | 21 | 50 | 0 |
| Honey Stinger Salted Caramel Waffle | 21 | 85 | 0 |
| GU Energy Chews (1 packet) | 34 | 70 | 0 |
| Clif Blok (1 packet, 6 chews) | 24 | 70 | 0 |
| Muir Energy Bar (varies) | 28 | 40 | 0 |
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.
- 5d ago First seen · 126 lines · 15 tokens per session scan A 3b8ab74fbffb
nutrition is a skill published in the GitHub repository rlacombe/switchback-running (10 stars, last pushed today), licensed MIT. It adds 15 tokens to every session and 1,603 once invoked, about $0.0001 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 2026-08-30.
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