PR-Agent is an open-source AI agent that reviews pull requests and helps with code review. Developers use it to automate review work in software repositories.
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 instructions/the-pr-agent/pr-agent/claude-mdgit clone --depth 1 https://github.com/The-PR-Agent/pr-agentWrote 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/instructions/the-pr-agent/pr-agent/claude-md)<a href="https://agentmods.dev/instructions/the-pr-agent/pr-agent/claude-md"><img src="https://agentmods.dev/badge/instructions/the-pr-agent/pr-agent/claude-md.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 | $0.00041 | $0.00041 |
| Opus 5 | $0.00020 | $0.00020 |
| Sonnet 5 | $0.00008 | $0.00008 |
| Haiku 4.5 | $0.00004 | $0.00004 |
Grade C, and why
pr-agent CLAUDE.md scanned grade C 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 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.
Hidden instructionshighPrompt injection
Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.
<!-- AGENTS.md is the single source of truth for repository-wide agent guidance. Claude Code-specific instructions, if any, belong below this line. --> What it actually says
CLAUDE.md
@AGENTS.md
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 · 6 lines · 41 tokens per session scan C c608b7d7bf48
pr-agent CLAUDE.md is an instructions file published in the GitHub repository The-PR-Agent/pr-agent (12,840 stars, last pushed yesterday), licensed MIT. It adds 41 tokens to every session, about $0.0002 per session on Opus 5. A static security scan graded it C with 1 finding (hidden instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
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