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/rickicode/patchright-browser/agents-mdgit clone --depth 1 https://github.com/rickicode/patchright-browserWhat 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 | $0.00686 | $0.00686 |
| Opus 5 | $0.00343 | $0.00343 |
| Sonnet 5 | $0.00137 | $0.00137 |
| Haiku 4.5 | $0.00069 | $0.00069 |
Grade A, and why
patchright-browser AGENTS.md 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.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
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 · 122 lines · 686 tokens per session scan A ac228be179ee
patchright-browser AGENTS.md is an instructions file published in the GitHub repository rickicode/patchright-browser (20 stars, last pushed 2mo ago), with no licence file. It adds 686 tokens to every session, about $0.0034 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.
Other instructions, from other repositories
rustwright AGENTS.md
Instructions for Skyvern-AI/rustwright, covering repository instructions, public boundary, pull-request review, local verification and browser launches.
mcp-stealth-chrome AGENTS.md
Instructions for RobithYusuf/mcp-stealth-chrome, covering mcp-stealth-chrome — agent guide, product and repository map, hard constraints, working defaults and architecture invariants.
unbrowser CLAUDE.md
Instructions for protostatis/unbrowser, covering unbrowser, why this exists, architecture (locked), stealth mode (native, on by default) and host functions exposed to js.
browser-mcp CLAUDE.md
Claude Code instructions for drisplabs/browser-mcp, covering claude.md, project overview, build and development commands, build and quality checks.
browser-mcp AGENTS.md
AGENTS.md instructions for drisplabs/browser-mcp, covering snapshot & interaction pipeline — audit results, critical (agent can't complete tasks), major (agent works around it poorly), m2. batch vs. fallback coordinate space mismatch and m3. wrapping hidden inputs dropped from snapshot.
ghostlight AGENTS.md
AGENTS.md instructions for sylin-org/ghostlight, covering ghostlight -- agent guide, read this first (in order), authority and historical continuity, cross-session coordination and what this project is.