A fleet worker IS a headless `codewhale exec` run — not a separate execution
engine. New crates/tui/src/fleet/executor.rs provides the bridge:
- build_worker_exec_command: FleetTaskSpec + FleetExecConfig ->
`codewhale exec --auto --output-format stream-json [--model/--allowed-tools/
--disallowed-tools/--max-turns/--append-system-prompt] <prompt>`. Secrets are
never on argv (worker resolves its own config/keyring).
- map_exec_stream_line: maps the worker's stream-json events
({"type":"tool_use"|"content"|"tool_result"|"done"|"error"}) into
FleetWorkerEventPayload so the durable ledger persists the worker's OWN event
vocabulary (collapses the translation layer toward identity).
- classify_worker_exit: process exit -> terminal Completed/Failed/Cancelled.
This is the substrate for replacing the local simulation with real headless
workers. fleet_task_prompt is now pub(crate). 7 new unit tests; building blocks
only (no behavior change yet) so the 58 existing fleet tests stay green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Hunter B
91cbaf2811