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.
git clone --depth 1 https://github.com/skeletonarmytech/marrow-mcpWrote 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/commands/skeletonarmytech/marrow-mcp/log)<a href="https://agentmods.dev/commands/skeletonarmytech/marrow-mcp/log"><img src="https://agentmods.dev/badge/commands/skeletonarmytech/marrow-mcp/log/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/commands/skeletonarmytech/marrow-mcp/log"><img src="https://agentmods.dev/badge/commands/skeletonarmytech/marrow-mcp/log.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 | $0.00026 | $0.00200 |
| Opus 5.5 | $0.00010 | $0.00080 |
| Sonnet 5.5 | $0.00005 | $0.00040 |
| Haiku 4.5 | $0.00003 | $0.00020 |
Grade A, and why
log 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 yesterday.
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.
What it actually says
Log this in Marrow: $ARGUMENTS
Work out what it is (food, water, weight, a workout, lifting sets, sleep, a symptom or a mood) and call the matching marrow log tool once per item with sensible amounts: log_meal, log_water, log_weight, log_workout, log_strength, log_sleep, log_symptom or log_mood. Use today and the current time unless the text says otherwise. If a quantity is unclear, make a reasonable estimate and say so. Afterwards, confirm in one line what was logged. If the tool answers that write-back is turned off, tell me how to turn it on (Marrow, Export, Connect your AI, Allow AI write).
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.
- yesterday First seen · 9 lines · 26 tokens per session scan A 758e046cca07
log is a command published in the GitHub repository skeletonarmytech/marrow-mcp (3 stars, last pushed yesterday), licensed MIT. It adds 26 tokens to every session and 200 once invoked, about $0.0001 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 2026-10-22.
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