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/babosina/librarymcp/pr-descriptionnpx skills add babosina/libraryMCP --skill pr-descriptiongit clone --depth 1 https://github.com/babosina/libraryMCPWrote 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/babosina/librarymcp/pr-description)<a href="https://agentmods.dev/skills/babosina/librarymcp/pr-description"><img src="https://agentmods.dev/badge/skills/babosina/librarymcp/pr-description.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 | $0.00031 | $0.00117 |
| Opus 5 | $0.00015 | $0.00059 |
| Sonnet 5 | $0.00006 | $0.00023 |
| Haiku 4.5 | $0.00003 | $0.00012 |
Grade A, and why
pr-description 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 4d 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.
This is a copy
100% identical to pr-description — 1 line differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
When writing a PR description:
- Run
git diff main...HEADto see all changes on this branch - Write a description following this format:
What
One sentence explaining what this PR does.
Why
Brief context on why this change is needed
Changes
- Bullet points of specific changes made
- Group related changes together
- Mention any files deleted or renamed
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.
- 4d ago First seen · 23 lines · 31 tokens per session scan A c4601165b1ab
pr-description is a skill published in the GitHub repository babosina/libraryMCP (4 stars, last pushed 3mo ago), licensed MIT. It adds 31 tokens to every session and 117 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to pr-description, differing in 1 line, and is treated as a copy.
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