ln-302-task-replanner

name	ln-302-task-replanner
description	Compares ideal plan vs existing tasks and applies KEEP/UPDATE/OBSOLETE/CREATE changes. Use when Story tasks need re-sync with updated requirements.
license	MIT

Paths: File paths (references/, ../ln-*) are relative to this skill directory.

Task Replanner

Type: L3 Worker Category: 3XX Planning

Standalone-first worker for task replanning. It compares the ideal task plan with existing tasks and applies the required operations.

MANDATORY READ: Load references/coordinator_summary_contract.md and references/task_plan_worker_runtime_contract.md MANDATORY READ: Load references/environment_state_contract.md, references/storage_mode_detection.md, references/template_loading_pattern.md, and references/destructive_operation_safety.md MANDATORY READ: Load references/replan_algorithm.md

Inputs

Core inputs:

• storyId
• taskType
• storyData
• existingTaskIds
• idealPlan
• teamId

Transport inputs:

• standalone: omit runId and summaryArtifactPath
• managed: pass both runId and summaryArtifactPath

Runtime

Runtime family: task-plan-worker-runtime

Phase profile:

1. PHASE_0_CONFIG
2. PHASE_1_LOAD_INPUTS
3. PHASE_2_LOAD_EXISTING_TASKS
4. PHASE_3_NORMALIZE_AND_CLASSIFY
5. PHASE_4_CONFIRM_OR_AUTOAPPROVE
6. PHASE_5_APPLY_REPLAN
7. PHASE_6_UPDATE_KANBAN
8. PHASE_7_WRITE_SUMMARY
9. PHASE_8_SELF_CHECK

Summary artifact rules:

• emit summary_kind=task-plan
• standalone runs generate their own run_id and write the default worker-family artifact path
• managed runs require both runId and summaryArtifactPath and must write the summary to the exact provided path
• always write the validated summary artifact before terminal outcome

Output Contract

Always build a structured task-plan summary envelope per:

• references/coordinator_summary_contract.md
• references/task_plan_worker_runtime_contract.md

Payload fields:

• mode
• story_id
• task_type
• tasks_created
• tasks_updated
• tasks_canceled
• task_urls
• kanban_updated
• dry_warnings_count
• warnings

Always write the validated summary before terminal outcome.

Workflow

1. Resolve Story context if needed.
2. Load existing tasks.
3. Normalize ideal vs existing task structures.
4. Classify KEEP, UPDATE, OBSOLETE, CREATE.
5. If classification is empty, emit a verified no-op summary and stop.
6. Show summary if interactive.
7. Execute provider-specific updates.
8. Update kanban only when provider mutations occurred.
9. Return structured summary.

Critical Rules

• Remain standalone-capable.
• Do not require coordinator runtime state.
• Preserve type-specific rules after replanning.
• Return machine-readable output every time.
• Fast path for no-op replans: when no task changes survive normalization, do not mutate provider state or kanban; return a summary with zero changes.
• STOP before tracker createTask/updateBody: verify all 7 sections present in body: Context, Implementation Plan, Technical Approach, Acceptance Criteria, Affected Components, Existing Code Impact, Definition of Done. PreToolUse hook will BLOCK creation without them.

Definition of Done

• Existing tasks loaded and compared
• Replan operations classified
• Updates, cancellations, and creations executed
• kanban updated
• Structured summary returned
• Summary artifact written to the managed or standalone runtime path

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Version: 3.0.0 Last Updated: 2025-12-23