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boocode/openspec/changes/domain3-multi-agent/tasks.md
indifferentketchup 6fde7002aa docs: boocode-lift-analysis, openspec change docs, codesight cache, deps
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# Tasks — Domain 3: Multi-Agent Orchestration
## Phase 1 (4 tasks)
### 1. Task state machine
Add formal states to Step:
- Read ./apps/coder/src/services/flow-runner.ts and ./apps/coder/src/services/flow-runner-decisions.ts
- Extend Step.type to add TIMED_OUT state
- Add retriable flag: retry_count, max_retries to Step
- Wire into flow-runner's advance/delegate path
- On failure with retriable=true: re-queue instead of failing
**Verification**: tsc --noEmit passes
### 2. DO_WHILE loop step
- Add 'do_while' to StepKind
- Step definition: { kind: 'do_while', condition: (ctx) => boolean, steps: Step[] }
- Flow runner executes steps, re-evaluates condition, loops or advances
- Guard against infinite loops (max 100 iterations default)
**Verification**: tsc --noEmit passes
### 3. SWITCH branch step
- Add 'switch' to StepKind
- Step definition: { kind: 'switch', cases: [{ when: (ctx) => boolean, steps: Step[] }] }
- Flow runner evaluates cases in order, executes first matching case's steps
- Default/else case support
**Verification**: tsc --noEmit passes
### 4. FORK_JOIN step
- Add 'fork_join' to StepKind
- Step definition: { kind: 'fork_join', branches: Step[][], joinStrategy: 'all' | 'any' }
- Flow runner dispatches all branches in parallel via existing task queue
- On completion, gathers results and passes to join handler
**Verification**: tsc --noEmit passes
## Phase 2 (1 task)
### 5. JSON DAG format
- Define JSON schema for flow DAG: nodes, edges, conditions
- Create DAG loader that produces Step[] from JSON
- Add validation for cycles, unreachable nodes, missing deps
- Parallel to existing TypeScript Step[] arrays — not a replacement
**Verification**: tsc --noEmit passes. Load a sample JSON DAG and verify it produces correct Step[].
## Phase 3 (2 tasks)
### 6. Parallel batch execution
- Modify flow runner to dispatch independent steps concurrently
- Use Promise.all for independent steps in the same wave
- Respect dependency ordering
**Verification**: tsc --noEmit passes. Two independent steps with different durations finish concurrently.
### 7. Phased lifecycle template
- Create conductor/flows/lifecycle.ts with 6-phase template:
ticket → research → plan → execute → commit → review
- Each phase is a step with agent dispatch + output validation
- Users can fork and customize
**Verification**: tsc --noEmit passes. Flow definition renders correct Step[].