Plan Phase
Create executable plans for a phase. Orchestrates research → planning → validation.
Dynamic Context
Phase info from CLI:
!python3 -m erirpg.cli coder-plan-phase $ARGUMENTS 2>/dev/null || echo '{"error": "CLI failed"}'
Project state:
!cat .planning/STATE.md 2>/dev/null | head -20
Phase goal from ROADMAP:
!grep -A 5 "Phase $0" .planning/ROADMAP.md 2>/dev/null | head -6
Existing research:
!ls .planning/phases/$0-*/RESEARCH.md 2>/dev/null && echo "exists" || echo "none"
Existing context:
!ls .planning/phases/$0-*/CONTEXT.md 2>/dev/null && echo "exists" || echo "none"
Planning Flow
1. Parse CLI Response
Extract: phase_number, phase_name, phase_dir, goal, has_context, has_research
2. Detect Research Depth
Level 0 - Skip: Pure internal work, existing patterns only Level 1 - Quick: Confirm known library syntax (2-5 min) Level 2 - Standard: New library, external API, choose between options (15-30 min) Level 3 - Deep: Architecture, security, database design (1+ hour)
Run detection: ./scripts/detect-depth.sh "$goal"
See reference.md for full indicator list.
3. Execute Research (if depth > 0)
Level 1: Inline verification, no agent needed.
Level 2-3: Spawn eri-phase-researcher:
Task(
subagent_type="eri-phase-researcher",
prompt="Research implementation for phase {phase_number}: {phase_name}
<depth>{RESEARCH_DEPTH}</depth>
<phase_goal>{goal}</phase_goal>
<context_md>{CONTEXT.md content or 'None'}</context_md>
Create {phase_dir}/RESEARCH.md with:
- Recommended approach with rationale
- Integration points with existing code
- Pitfalls specific to this phase
- Confidence level (HIGH/MEDIUM/LOW)"
)
Confidence gate:
| Confidence | Action |
|---|---|
| HIGH | Proceed to planning |
| MEDIUM | Warn user, proceed |
| LOW | STOP — see low-confidence template |
4. Create Plans
Spawn eri-planner with full context:
Task(
subagent_type="eri-planner",
prompt="Create execution plans for phase {phase_number}: {phase_name}
<project>{PROJECT.md content}</project>
<roadmap>{ROADMAP.md content}</roadmap>
<state>{STATE.md content}</state>
<context>{CONTEXT.md or 'No CONTEXT.md'}</context>
<research>{RESEARCH.md or 'Level 0 - no research'}</research>
<mode>{'gap_closure' if --gaps else 'standard'}</mode>
Create PLAN.md files with:
- 2-3 tasks per plan (stay under 50% context)
- Wave assignments for parallel execution
- must_haves in frontmatter (goal-backward derived)
- Runtime verification criteria"
)
5. Validate Plans (if enabled)
Check config.json for plan_check: true (default).
Spawn eri-plan-checker:
Task(
subagent_type="eri-plan-checker",
prompt="Validate plans for phase {phase_number}
<phase_dir>{phase_dir}</phase_dir>
<context>{CONTEXT.md content}</context>
Check: requirement coverage, task completeness, dependencies,
key links, scope sanity, must-haves derivation, context compliance.
Return: Issues with severity, or 'PASSED'."
)
If issues: Spawn planner in revision mode.
6. Commit Plans
git add .planning/phases/{phase_dir}/
git commit -m "plan(phase-{N}): create execution plans for {phase_name}"
7. Completion
Update STATE.md and show completion box.
CONTEXT.md Flow
If CONTEXT.md exists, it flows through entire pipeline:
| Stage | How Used |
|---|---|
| Research | Locked: don't research alternatives. Discretion: research freely. Deferred: ignore. |
| Planning | Locked: implement exactly. Discretion: best call. Deferred: exclude. |
| Checking | Verify locked decisions have tasks, deferred excluded. |
Never skip CONTEXT.md. Every agent receives it.
Critical Rules
- Research mandatory for Level 2-3 — Don't skip external integrations
- Stop on LOW confidence — Get user approval first
- CONTEXT.md flows everywhere — Every agent receives it
- Plan check catches issues — Don't skip validation
- Show completion box — Never say "ready when you are"
For detailed documentation, see reference.md.
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