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docs(policies): note what changes when a policy is cloud-managed #849

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docs(policies): note what changes when a policy is cloud-managed
lakshya-dhariwal Sep 27, 2026
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docs(policies): authority comes from the deployment assignment, not t…
lakshya-dhariwal Sep 27, 2026
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7 changes: 7 additions & 0 deletions docs/policies/editor.mdx
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Expand Up @@ -61,6 +61,13 @@ fp policies publish checkout-guard ./checkout.policy.mjs --description "Block fo

`publish` parse-checks the source before sending it, so a syntax error surfaces here instead of on a machine at enforcement time.

### What changes when a policy is cloud-managed

A published policy runs on every machine that pulls it, and two rules there differ from a local policy file (`.failproofai/policies/`):

- **Authority lives on the deployment, not in the source.** Source-level `authority: "reviewable"`, `reviewedBy`, `userCanOverride` and `semanticPolicies.add()` are ignored; a deployment assignment is what can make a published policy reviewable. Publishing refuses a source that mentions these Jev-only names at all, and the check is a whole-word scan of the whole file - comments and strings included - so even a comment documenting this rule stops the publish. Keep the words out of a source you mean to publish.
- **Only the policy context is available.** The helpers a local setup may provide are not there; a cloud policy sees the [policy context](/reference/policy-sdk) (`eventType`, `toolName`, `toolInput`, `payload`, `session`, `cli`, `params`) and nothing else.

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## Write it yourself

A policy is JavaScript or TypeScript against the `failproofai` API:
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