HandoffRoundTracker.Register nimmt den Cap jetzt als Parameter statt aus einer
Konstante; HandoffMcpTools liest ihn pro Aufruf aus app_settings. Werte unter 1
werden auf 1 geklemmt (in WorkerHub UND in Register): der Cap ist das Einzige,
was eine entlaufene Handoff-Kette begrenzt, "0 = unbegrenzt" darf kein Aufrufer
waehlen koennen.
InteractiveLaunchSpecService.ComposeHandlerPromptAsync haengt das PowerUse-
Addendum an den Phasen-Prompt, aber nur wenn globaler Schalter und Listen-Opt-in
beide gesetzt sind. Bewusst ein Addendum statt einer zweiten Prompt-Garnitur:
die gemeinsamen 95% bleiben an einer Stelle, und ein Run ohne PowerUse bekommt
einen byte-identischen Prompt wie vorher. Das Addendum ist als Override der
interaktiven Regeln formuliert (nie fragen, entscheiden und protokollieren;
Konflikte loesen oder abbrechen, nie im Tree liegen lassen; Arbeit ernten, wenn
eine Runde sonst leer laeuft).
Drei Tests pinnen alle vier Ecken des UND, weil die Sicherheitsaussage des
Features genau daran haengt.
HandoffMcpTools.HandoffListHandler only validated the phase name and
broadcast it -- nothing bounded how many times a ConPTY session could
hand off wait<->merge, so a model that skimmed past the prompt's
"final round" line could loop indefinitely. Add HandoffRoundTracker,
an in-memory per-handler-task counter (a list-handler run always
creates a fresh handler task, so no reset logic is needed): past 4
handoffs (two full wait/merge cycles) a non-final nextPhase is
coerced to its "_final" counterpart, and any handoff after a
merge_final round for that task is rejected outright.
Threads a nextPhase parameter (wait/merge/wait_final/merge_final, validated
by the new MergeHelperPhase) from handoff_list_handler through
HubBroadcaster/WorkerHub into InteractiveLaunchSpecService, which now picks
the next session's system prompt (MergeHelperWait/MergeHelperMerge) and
model (HandlerWaitAlias/HandlerMergeAlias) from it instead of hardcoding the
old two-phase Execute prompt -- this also fixes a build break left by the
prior prompt-split task, which removed PromptKind.MergeHelperExecute without
updating its only caller.
Also sets --model/--effort/--permission-mode explicitly for every list-handler
session (Triage included) via PermissionModeResolver instead of inheriting the
CLI's ambient model and hardcoding "auto", and adds Task to the merge-helper
allowlist so the Merge phase can delegate diff reviews to subagents.
The merge-helper ("Let Claude handle it") system prompt now calls a new
handoff_list_handler MCP tool once every surviving task is enhanced,
instead of continuing into Phases 3-5 in the same session -- avoiding
paying for Phases 0-2's dedupe/rewrite context on every polling round of
the run/review/merge phases.
The tool broadcasts HandoffRequested; Mission Control opens a second
ConPTY tile for the SAME handler task id (no new task, HandlerBaseCommit
untouched) running a fresh handoff brief that starts at Phase 3. The
original tile stays open. Adds PromptKind.MergeHelperHandoff,
InteractiveLaunchSpecService.BuildForMergeHelperHandoffAsync, and the
GetMergeHelperHandoffLaunchSpec hub method.
Mika Kuns