Policies
Block Unsafe Code Execution
Block Unsafe Code Execution: what it does, its label on each agent, what it misses, and examples.
Catalog policy block-unsafe-code-execution, version 0.1.1, labelled blocks on Claude Code.
What it does
Commit and agent-write gate, greppable slice of ASI05: bare, global-receiver and indirect eval/exec forms, the Function constructor, string timers, exec-mode compile, import by computed name, shell-mode and implicit-shell process APIs, unsafe deserializers (pickle family, unsafe yaml loaders, model loads) and shell eval of a variable. File-type-blind line scan: friction, not a security boundary. Waiver 'pragma: allowlist exec' on the line; in the agent only if already committed in HEAD.
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 |
| Codex | Blocks | Blocks on an agent's file writes and at turn end. 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. 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. 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 staged file passes model output to the Python eval builtin.
Allowed: A staged file calls model.eval() to switch a torch module to inference mode.
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Built from engine 5a4b6287a46e and catalog 1e60d211c1bb.