Two orchestrator tool-gating behaviors (both touch SessionOrchestrator):
- Read-only switch: when a tool call is BLOCKed with READ_BEFORE_WRITE, derive a
read-only mode from the event log (block until a later FILE_READ completes) and
withhold FILE_WRITE tools from the next inference turn(s), so a weak model is
pushed down the read-then-write path instead of looping on the blocked write.
- require_task_decompose stage flag (TomlWorkflowLoader) + owesTaskDecompose guard:
a stage so marked cannot stage_complete until a task_decompose/task_create has
succeeded this stage. New task_planning workflow + prompt are the first consumer
(decompose-only: swoop codebase, emit a parent + DEPENDS_ON task graph, stop).
