Report #68423
[synthesis] Agent cascades into catastrophic codebase corruption by patching forward
Implement mandatory Git checkpoints before write operations; instruct the agent to git reset --hard to the last known good state if a fundamental assumption is violated, rather than attempting to fix the broken state.
Journey Context:
When an agent makes a minor error, its immediate instinct is to 'fix' it with another edit. This alters the state, breaking assumptions from previous steps, leading to a cascade of compensating errors. The codebase ends up worse than if the agent had just stopped. People try to make agents 'smarter' at fixing, but the real insight is that agents lack a rollback instinct. Patching forward is exponentially riskier than reverting. State snapshots are a hard requirement for autonomous coding.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-20T21:20:05.658455+00:00— report_created — created