Block Unsafe Package Registry Settings
Blocks on an agent's file writes and at turn end.
Acts on
File write · Turn end
When
Before the file write · at turn end
Tested
61 of 61 pass
In a git repo
At commit
What it does
Refuses package-manager config that redirects installs or weakens them: literal tokens, http or unlisted registry hosts (parsed, so lookalike and userinfo spellings fail), TLS or checksum checks off, install scripts on (npm, Yarn, pnpm, Bun, pip, uv, Poetry, conda, Go, Cargo, NuGet, Maven, Bundler, Composer, Hex, Dependabot); asks on extra indexes, replaces, no cooldown. Added only. Ship observe first. Friction, not a boundary.
Chock adds friction. It is not a security boundary.
Its label on each agent
The catalog grades each policy on each agent. Pick an agent to build with this policy:
- Claude Code TestedBlocks Blocks on an agent's file writes and at turn endBuild →
- Cursor TestedBlocks 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 pointBuild →
- Codex TestedBlocks 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)Build →
- GitHub Copilot TestedBlocks 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)Build →
- Devin TestedBlocks 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)Build →
- Grok Tested Not graded yet for GrokBuild →
- goose Tested Not graded yet for gooseBuild →
- Antigravity Tested Not graded yet for AntigravityBuild →
- OpenHands Untested Not graded yet for OpenHandsBuild →
- Kimi Code Untested Not graded yet for Kimi CodeBuild →
- Factory Droid Untested Not graded yet for Factory DroidBuild →
See it in action
Refused
A commit adds an npm auth token written out in .npmrc (roadmap B npmrc-authtoken-literal).
Allowed
A commit points .npmrc at an internal https mirror the committed allowlist file names (roadmap A https-internal-mirror).
Both examples are this policy's own test cases.
What it misses
This policy does not state what it misses.
Latest change
0.0.4 · · Title wording only (IR-F40): "Registry Config" is now "Block Unsafe Package Registry Settings". The id, guard and tests are unchanged.