aspendos-reversibility

name	aspendos-reversibility
description	Undo, cancel, or compensate agent actions. Manages the 5-class reversibility model for all tool executions.
homepage	https://aspendos.dev
user-invocable	true

Aspendos Reversibility

When the user asks to undo, cancel, or reverse an action:

/undo Command

1. Find the most recent reversible action
2. Check its reversibility class
3. Execute the appropriate reverse strategy:
   • undoable → restore from snapshot
   • cancelable_window → cancel if within the time window
   • compensatable → execute the compensating action
   • approval_only → cannot auto-reverse, explain why
   • irreversible_blocked → was never executed, nothing to undo

Response Format

On success:

✅ Reversed: file.write → /tmp/hello.txt restored from snapshot
   Commit: abc123de → revert_def456gh

On failure:

❌ Cannot undo: email.send — cancel window expired (was 30 seconds)
   The email was sent 2 minutes ago.

Always Explain

When reversing, always tell the user:

• What was reversed
• How it was reversed (snapshot, cancel, compensate)
• The new commit hash for the reversal action
• Whether the reversal itself is signed (it always is)