ln-302-task-replanner

name	ln-302-task-replanner
description	Updates ALL task types (implementation/refactoring/test). Compares IDEAL plan vs existing tasks, categorizes KEEP/UPDATE/OBSOLETE/CREATE, applies changes in Linear and kanban.

Paths: File paths (shared/, references/, ../ln-*) are relative to skills repo root. If not found at CWD, locate this SKILL.md directory and go up one level for repo root.

Universal Task Replanner

Worker that re-syncs existing tasks to the latest requirements for any task type.

Purpose & Scope

• Load full existing task descriptions from Linear
• Compare them with orchestrator-provided IDEAL plan (implementation/refactoring/test)
• Decide operations (KEEP/UPDATE/OBSOLETE/CREATE) and execute
• Drop NFR items; only functional scope remains
• Update Linear issues and kanban_board.md accordingly

Task Storage Mode

MANDATORY READ: Load shared/references/storage_mode_detection.md for Linear vs File mode operations.

Invocation (who/when)

• ln-300-task-coordinator: REPLAN mode when implementation tasks already exist.
• Orchestrators (other groups): Replan refactoring or test tasks as needed.
• Not user-invoked directly.

Inputs

• Common: taskType, teamId, Story data (id/title/description with AC, Technical Notes, Context), existingTaskIds.
• Implementation: idealPlan (1-8 tasks), guideLinks.
• Refactoring: codeQualityIssues, refactoringPlan, affectedComponents.
• Test: manualTestResults, testPlan (Priority ≥15, Usefulness Criteria), infra/doc/cleanup items.

Template Loading

MANDATORY READ: Load shared/references/template_loading_pattern.md for template copy workflow.

Template Selection by taskType:

• implementation → task_template_implementation.md
• refactoring → refactoring_task_template.md
• test → test_task_template.md

Local copies: docs/templates/*.md (in target project)

Workflow (concise)

1. Load templates per taskType (see Template Loading) and fetch full existing task descriptions.
2. Normalize both sides (IDEAL vs existing sections) and run replan algorithm to classify KEEP/UPDATE/OBSOLETE/CREATE.
3. Present summary (counts, titles, key diffs). Confirmation required if running interactively.
4. Execute operations in Linear: update descriptions, cancel obsolete, create missing with state="Backlog", preserve parentId for updates.
5. Update kanban_board.md: remove canceled, add new tasks under Story in Backlog.
6. Return operations summary with URLs and warnings.

Type Rules (must hold after update)

taskType	Hard rule	What to enforce
implementation	No new test creation	Updated/created tasks must not introduce test creation text
refactoring	Regression strategy required	Issues + severity, 3-phase plan, regression strategy, preserve functionality
test	Risk-based limits	Priority ≥15 scenarios covered; each test passes Usefulness Criteria; no framework/library/DB tests

Critical Notes

• MANDATORY: Always pass state: "Backlog" when creating new tasks (CREATE operation). Linear defaults to team's default status (often "Postponed") if not specified.
• Foundation-First ordering from IDEAL plan is preserved; do not reorder.
• Language preservation: keep existing task language (EN/RU).
• No code snippets; keep to approach/steps/AC/components.
• If Story reality differs (component exists, column exists), propose Story correction to orchestrator.

Definition of Done

• Existing tasks loaded and parsed with correct template.
• IDEAL plan vs existing compared; operations classified.
• Type validation passed for all updated/created tasks.
• Operations executed in Linear (updates, cancels, creations) with parentId intact.
• kanban_board.md updated (Backlog) with correct Epic/Story/indentation.
• Summary returned (KEEP/UPDATE/OBSOLETE/CREATE counts, URLs, warnings).

Reference Files

• Kanban update algorithm: shared/references/kanban_update_algorithm.md
• Template loading: shared/references/template_loading_pattern.md
• Linear creation workflow: shared/references/linear_creation_workflow.md
• Replan algorithm (universal): shared/references/replan_algorithm.md
• Task-specific replan algorithm: references/replan_algorithm.md (5 scenarios, comparison logic)
• Storage mode detection: shared/references/storage_mode_detection.md
• Templates (centralized): shared/templates/task_template_implementation.md, shared/templates/refactoring_task_template.md, shared/templates/test_task_template.md
• Local copies: docs/templates/*.md (in target project)
• Kanban format: docs/tasks/kanban_board.md

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Version: 3.0.0 Last Updated: 2025-12-23