What is Policy Rollback?
Policy rollback is the process of reverting to a previous version of a YAML policy when a new policy causes issues — such as blocking legitimate tool calls, allowing calls that should be denied, or introducing performance problems. Enabled by storing policies in version control.
WHY IT MATTERS
Policy changes can go wrong. A rule intended to block access to a sensitive database table might have a regex that's too broad, blocking all database queries. A new compliance rule might conflict with an existing operational rule, creating unexpected denials. A well-intentioned tightening of permissions might break a critical agent workflow that no one realised depended on the access being removed.
When a policy change causes problems, speed of recovery matters. If agents are being blocked from legitimate operations, every minute of downtime affects productivity or revenue. If a policy change accidentally permitted access that should be denied, every minute of exposure is a compliance risk. Rollback must be fast, reliable, and well-understood by the team.
Git makes rollback straightforward. A git revert creates a new commit that undoes the problematic change, preserving the full history (including the mistake and the fix). The reverted policy is then deployed through the same CI/CD pipeline, ensuring the rollback goes through the same validation as any other change. This is materially better than manually editing production policy files, which has no audit trail and no validation.
HOW POLICYLAYER USES THIS
Because Intercept reads YAML policies from the filesystem, rollback is a deployment operation — revert the git commit, redeploy, and Intercept picks up the previous policy version. There is no internal state to reset and no cache to invalidate. The entire rollback process can be automated in CI/CD: detect the issue (via monitoring or alert rules), trigger a revert pipeline, and deploy the known-good policy version. Recovery time is limited only by deployment speed.