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 skills add philipyaz/cos --skill body-profilegit clone --depth 1 https://github.com/philipyaz/cosWrote 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/philipyaz/cos/body-profile)<a href="https://agentmods.dev/skills/philipyaz/cos/body-profile"><img src="https://agentmods.dev/badge/skills/philipyaz/cos/body-profile/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.
<a href="https://agentmods.dev/skills/philipyaz/cos/body-profile"><img src="https://agentmods.dev/badge/skills/philipyaz/cos/body-profile.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00250 | $0.02452 |
| Opus 5 | $0.00125 | $0.01226 |
| Sonnet 5 | $0.00050 | $0.00490 |
| Haiku 4.5 | $0.00025 | $0.00245 |
Grade A, and why
body-profile 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.
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.
`bash`/`curl`. The **/body** page is the read twin. How it starts
The opening of the file, as written. The whole thing — 151 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Body (the shared body space)
This skill owns the body add-on — the foundational space that Nutrition & Chef and Fitness
both read. It holds three things: your identity (db.bodyProfile — sex, date of birth, height,
training status, whether you lift), your weight + body-composition series (db.weights — weigh-ins
with optional body-fat % / lean mass / waist), and your objective (db.bodyObjective — a
free-text goal + an optional target weight). It writes only through the body MCP — never
bash/curl. The /body page is the read twin.
The goal is FREE TEXT — never a pick-list. Write the user's objective in their own words in
goalText("lose some fat but keep my strength", "lean recomposition — drop body fat, hold ~80 kg", "build muscle, I lift 4×/week"). The only structured anchor is a target weight (optional — recomp/maintenance legitimately have none). Do not force the goal into "lose / gain / maintain" categories; capture what they said.
This skill owns the goal/identity/weight — NOT the targets. It does not compute calorie or macro targets. Those are authored by the Nutrition chef (
nutrition-chefskill →save_nutrition_targets), which reads your goal here + the physiology facts (get_body_status) + your dietary profile (get_diet_profile). So: set the goal/identity/weight here; ask the chef "what's my calorie target?" there. The Fitness coach likewise reads your training status + weight + goal cross-add-on.
Gate — usually already on. Writes are add-on-gated (a disabled add-on 404s, surfaced as "Not found."). But body HARD auto-enables whenever Nutrition or Fitness is enabled, so it is on in practice. If a write 404s with everything else off, enable it at the board's /addons catalog.
NOT MEDICAL ADVICE. Body status (BMR, maintenance, BMI, fat-free mass) is an informational estimate, not medical guidance. Record what the user states; don't prescribe a weight or rate; defer medical conditions, pregnancy/breastfeeding, an eating-disorder history, or a user under 18 to a clinician or registered dietitian.
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 · 151 lines · 250 tokens per session scan A 76e01aad5fae
body-profile is a skill published in the GitHub repository philipyaz/cos (4 stars, last pushed today), licensed MIT. It adds 250 tokens to every session and 2,452 once invoked, about $0.0013 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.
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