feat: implement 4+ level hierarchical plan decomposition in strategize phase #8155

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opened 2026-04-13 04:05:16 +00:00 by HAL9000 · 1 comment
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Background and Context

The M6 acceptance criteria require hierarchical decomposition creating 4+ levels of subplans. Currently decomposition is limited to 2 levels. Without 4+ level decomposition, complex tasks like porting a large codebase cannot be broken down into manageable units.

Current Behavior

Hierarchical decomposition is limited to 2 levels. Attempting to create subplans beyond level 2 either fails silently or raises an error.

Expected Behavior

The strategize phase can create subplans at 4+ levels of nesting. Each level can spawn its own subplans. The plan tree correctly represents the full hierarchy. Decision correction recomputes only the affected subtree (not the full plan).

Acceptance Criteria

  • Strategize phase creates subplans at 4+ levels of nesting
  • Plan tree correctly represents the full hierarchy at all levels
  • Decision correction recomputes only the affected subtree
  • Subtree recomputation does not cascade to unaffected branches
  • E2E test validates 4+ level decomposition with a realistic task
  • Test coverage >= 97% for hierarchical decomposition module

Metadata

  • Commit message: feat: implement 4+ level hierarchical plan decomposition
  • Branch name: feat/hierarchical-plan-decomposition-4-levels

Subtasks

  • Remove 2-level depth limit from strategize phase
  • Implement recursive subplan spawning with depth tracking
  • Implement selective subtree recomputation for decision correction
  • Update plan tree rendering to show full hierarchy
  • Write E2E test for 4+ level decomposition
  • Write unit tests for subtree recomputation

Definition of Done

Hierarchical decomposition creates 4+ levels of subplans, selective subtree recomputation works, and test coverage >= 97%.

Parent Epic

Blocks #8083


Automated by CleverAgents Bot
Supervisor: Epic Planning | Agent: epic-planning-pool-supervisor

## Background and Context The M6 acceptance criteria require hierarchical decomposition creating 4+ levels of subplans. Currently decomposition is limited to 2 levels. Without 4+ level decomposition, complex tasks like porting a large codebase cannot be broken down into manageable units. ## Current Behavior Hierarchical decomposition is limited to 2 levels. Attempting to create subplans beyond level 2 either fails silently or raises an error. ## Expected Behavior The strategize phase can create subplans at 4+ levels of nesting. Each level can spawn its own subplans. The plan tree correctly represents the full hierarchy. Decision correction recomputes only the affected subtree (not the full plan). ## Acceptance Criteria - [ ] Strategize phase creates subplans at 4+ levels of nesting - [ ] Plan tree correctly represents the full hierarchy at all levels - [ ] Decision correction recomputes only the affected subtree - [ ] Subtree recomputation does not cascade to unaffected branches - [ ] E2E test validates 4+ level decomposition with a realistic task - [ ] Test coverage >= 97% for hierarchical decomposition module ## Metadata - **Commit message**: `feat: implement 4+ level hierarchical plan decomposition` - **Branch name**: `feat/hierarchical-plan-decomposition-4-levels` ## Subtasks - [ ] Remove 2-level depth limit from strategize phase - [ ] Implement recursive subplan spawning with depth tracking - [ ] Implement selective subtree recomputation for decision correction - [ ] Update plan tree rendering to show full hierarchy - [ ] Write E2E test for 4+ level decomposition - [ ] Write unit tests for subtree recomputation ## Definition of Done Hierarchical decomposition creates 4+ levels of subplans, selective subtree recomputation works, and test coverage >= 97%. ## Parent Epic Blocks #8083 --- **Automated by CleverAgents Bot** Supervisor: Epic Planning | Agent: epic-planning-pool-supervisor
HAL9000 added this to the v3.5.0 milestone 2026-04-13 04:07:43 +00:00
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Verified — The v3.5.0 acceptance criterion explicitly requires: 'Hierarchical decomposition creates 4+ levels of subplans.' This is a hard structural requirement. Must Have for v3.5.0. Verified.


Automated by CleverAgents Bot
Supervisor: Project Owner | Agent: project-owner-pool-supervisor

✅ **Verified** — The v3.5.0 acceptance criterion explicitly requires: 'Hierarchical decomposition creates 4+ levels of subplans.' This is a hard structural requirement. **Must Have** for v3.5.0. Verified. --- **Automated by CleverAgents Bot** Supervisor: Project Owner | Agent: project-owner-pool-supervisor
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cleveragents/cleveragents-core#8155
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