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Cotool automatically creates a new agent version every time you edit the system prompt or accept an AI-suggested improvement.

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Viewing Versions

Agent versions are visible in two places:
  • When editing an agent - View version history in the agent settings
  • On the Evaluations tab - See which version was used for each run

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Restoring Previous Versions

If a new version performs worse, you can restore a previous version:
  1. Go to the agent’s version history
  2. Select the version you want to restore
  3. Click “Restore”
The agent will immediately use the restored version for all new runs.