v3.26.1 - Copilot SDK default reverted to opt-in
v3.26.1 - Copilot SDK default reverted to opt-in
routing.copilotSdk defaults to off again. v3.26.0 shipped it as prefer, but the phase that flipped it never produced the cost-parity baseline its own plan required as the precondition, and the plan's rule was to revert if parity could not be shown.
Also fixes two contract problems: capabilities/schemas.mjs still declared default off with the description 'no behaviour change until explicitly enabled', so forge_capabilities advertised the opposite of runtime behaviour; and the reader's catch branch returned prefer, so a malformed .forge.json silently opted operators into an unmeasured billing path. It now fails closed.
The SDK worker path is unchanged and fully available via routing.copilotSdk: prefer.