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. If shared/ is missing, fetch files via WebFetch from https://raw.githubusercontent.com/levnikolaevich/claude-code-skills/master/skills/{path} .

Task Rework Executor

Type: L3 Worker

Executes rework for a single task marked To Rework and hands it back for review.

Purpose & Scope

• Load full task, reviewer comments, and parent Story; understand requested changes.

• Apply fixes per feedback, keep KISS/YAGNI, and align with guides/Technical Approach.

• Update only this task: To Rework -> In Progress -> To Review; no other tasks touched.

Hex-line acceleration (if available): Use outline(file_path) before reading large code files. Use read_file() for discovery and read_file(edit_ready=true, verbosity="full") before any edit that needs revision and checksums. After edits: edit_file(base_revision=rev) → verify(checksums) . Use changes() to show what was fixed.

Inputs

Use read_file() and edit_file() as the primary path for code/config/script/test files during rework. Keep read_file() discovery-first by default; request edit_ready=true, verbosity="full" only when you are about to reuse its revision/checksum protocol. Built-in Read/Edit are fallback only when hex-line is unavailable.

Input Required Source Description

taskId

Yes args, parent Story, kanban, user Task to rework

Resolution: Task Resolution Chain. Status filter: To Rework

Task Storage Mode

MANDATORY READ: Load shared/references/environment_state_contract.md , shared/references/storage_mode_detection.md , and shared/references/input_resolution_pattern.md

Extract: task_provider = Task Management → Provider (linear | file ).

Aspect Linear Mode File Mode

Load task get_issue(task_id)

Read("docs/tasks/epics/.../tasks/T{NNN}-*.md")

Load review notes Linear comments Review section in task file or kanban

Update status save_issue(id, state)

Edit the Status: line in file

File Mode transitions: To Rework → In Progress → To Review

MANDATORY READ: Load shared/references/mcp_tool_preferences.md — ALWAYS use hex-line MCP for code files when available. No fallback to standard Read/Edit unless hex-line is down.

Workflow (concise)

• Resolve taskId: Run Task Resolution Chain per guide (status filter: [To Rework]).

• Load task: Read task (Linear: get_issue; File: Read task file), review notes, parent Story. 2b) Goal gate: MANDATORY READ: Load shared/references/goal_articulation_gate.md — State REAL GOAL of this rework (what was actually broken, not "apply feedback"). Combine with 5 Whys (shared/references/problem_solving.md ) to ensure root cause is articulated alongside the rework goal. NOT THE GOAL: a superficial patch that addresses the symptom, not the cause.

• Plan fixes: Map each comment to an action; confirm no new scope added.

• Implement: MANDATORY READ: Load shared/references/code_efficiency_criterion.md — Follow task plan/checkboxes; address config/hardcoded issues; update docs/tests noted in Affected Components and Existing Code Impact. Before handoff, verify 3 efficiency self-checks.

• Quality: Run typecheck/lint (or project equivalents); ensure fixes reflect guides/manuals/ADRs/research.

• Root Cause Analysis: Ask "Why did the agent produce incorrect code?" Classify: missing context | wrong pattern | unclear AC | gap in docs/templates. If doc/template gap found → update the relevant file (guide, template, CLAUDE.md) to prevent recurrence.

• Handoff: Set task to To Review (Linear: update_issue; File: Edit status line); move it in kanban; add summary comment referencing resolved feedback + root cause classification.

Critical Rules

• Single-task only; never bulk update.

• Do not mark Done; only To Review (the reviewer decides Done).

• Keep language (EN/RU) consistent with task.

• No new tests/tasks created here; only update existing tests if impacted.

• Do NOT commit. Leave all changes uncommitted — the reviewer reviews and commits.

Runtime Summary Artifact

MANDATORY READ: Load shared/references/coordinator_summary_contract.md , shared/references/worker_runtime_contract.md , shared/references/task_worker_runtime_contract.md

Shared contract:

• emit summary_kind=task-status

• standalone mode omits runId and summaryArtifactPath

• managed mode passes both runId and exact summaryArtifactPath before the worker writes its validated summary

Monitor (2.1.98+): When verification commands expected >30s, use Monitor . Fallback: Bash(run_in_background=true) .

Definition of Done

• Task and review feedback fully read; actions mapped.

• Fixes applied; docs/tests updated as required.

• Quality checks passed (typecheck/lint or project standards).

• Root cause classified (missing context | wrong pattern | unclear AC | doc gap); doc/template updated if gap found.

• Status set to To Review; kanban updated; summary comment with fixed items + root cause.

• Runtime summary artifact written to the shared task-status location.

Reference Files

• Environment state: shared/references/environment_state_contract.md

• Storage mode operations: shared/references/storage_mode_detection.md

• [MANDATORY] Problem-solving approach: shared/references/problem_solving.md

• Kanban format: docs/tasks/kanban_board.md

Version: 3.0.0 Last Updated: 2025-12-23