antigravity cli extensions hooks

TwoWells/Catenary

Hook

Runs before the agent uses a tool, running catenary hook pre-tool --format=claude. From TwoWells/Catenary.

TwoWells/Catenary

Hook

Runs when a subagent finishes, running catenary hook post-agent --format=claude. From TwoWells/Catenary.

TwoWells/Catenary

Hook

Runs when a session ends, running catenary hook session-end --format=claude. From TwoWells/Catenary.