Sandcastle re-invokes agents up to maxIterations even when the work is
already done — the decomposer was looping 4x re-writing the same epic
on every dispatch. Two halves to the fix:
- Pass completionSignal: "<promise>COMPLETE</promise>" explicitly on
all three run() calls (decompose, implementer, reviewer). Makes the
contract visible alongside maxIterations instead of relying on
sandcastle's default.
- Append a "Signal completion (required)" section to each prompt
telling the agent to emit the literal marker as its final line when
the work is genuinely done, plus a "do NOT emit if..." list to
discourage premature signaling.
Danijel Martinek
eadbb7ebd9