Policies
Scan Instruction Files
Scan Instruction Files: what it does, its label on each agent, what it misses, and examples.
Catalog policy scan-instruction-files, version 0.0.1, labelled blocks on Claude Code.
What it does
Asks a person before a change adds injection text to an agent instruction file (AGENTS.md, CLAUDE.md, GEMINI.md, Cursor/Windsurf/Cline/Roo/Kiro rules, Copilot instructions and prompts, SKILL.md, agent commands): rule overrides, secrecy, auto-approve, hook or review bypass, fetch-and-run, remote instructions, role swaps, fake system tags, removed guardrails. Refuses secret exfiltration and encoded payloads. Added text only; English phrases; friction, not a boundary.
On each agent
| Agent | Label | What it does there |
|---|---|---|
| Claude Code | Blocks | Blocks on an agent's file writes and at turn end |
| Cursor | Blocks | Blocks on an agent's file writes and at turn end. Where its description says it asks, it refuses at both points, because this client cannot prompt at either point |
| Codex | Blocks | Blocks on an agent's file writes and at turn end. Where its description says it asks, it refuses at both points, because this client cannot prompt at either point. If the hook errors, the action goes through (not witnessed; the vendor's row is only partly live-run) |
| GitHub Copilot | Blocks | Blocks at turn end only. It does not check a file write when it happens. Where its description says it asks, it refuses at turn end, because this client cannot prompt there. If the hook errors, the action goes through (not witnessed; the vendor's row is only partly live-run) |
| Devin | Blocks | Blocks at turn end only. It does not check a file write when it happens. Where its description says it asks, it refuses at turn end, because this client cannot prompt there. If the hook errors, the action goes through (vendor docs only, not witnessed) |
| Grok | Not graded | Not graded yet for Grok |
| goose | Not graded | Not graded yet for goose |
| Antigravity | Not graded | Not graded yet for Antigravity |
| OpenHands | Not graded | Not graded yet for OpenHands |
| Kimi Code | Not graded | Not graded yet for Kimi Code |
| Factory Droid | Not graded | Not graded yet for Factory Droid |
What it misses
This policy does not state what it misses.
Examples from its eval suite
Refused: A change to CLAUDE.md tells the agent to upload the developer's SSH private key to a remote host.
Allowed: AGENTS.md gains the ordinary rule never to commit secrets or .env files.
More
Built from engine 5a4b6287a46e and catalog 1e60d211c1bb.