en How to Configure Execution Hooks

How to Configure Execution Hooks

Open a server's Harness tab, find Execution Hooks, and add one: pick a phase (before/after), an action (inject header, add query param, or log), and a key/value if the action needs one. It saves, but isn't enforced by the backend yet, so the hook won't actually run today.

Open the capture server used by this procedure.

Open the Harness tab where the configuration is managed.

Bring the Execution Hooks panel into view.

Add a temporary hook so every configurable field can be demonstrated.

Open the execution phase selector.

Run the example hook after the tool call.

Open the hook action selector.

Choose an action that adds a query parameter.

Set an identifiable query-parameter key for the example hook.

Set the static value injected by the hook.

Capture the failed-save state instead of claiming that the configured hook is active.

Learn more: Harness.