ln-404-test-executor

> **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}`. # Test Task Executor **Type:** L3 Worker Runs a single Story final test task (label "tests") through implementation/execution to To Review. ## Purpose & Scope - Handle only tasks labeled "tests"; other tasks go to ln-401. - Follow the 11-section test task plan (E2E/Integration/Unit, infra/docs/cleanup). - Enforce risk-based constraints: Priority ≥15 scenarios covered; each test passes Usefulness Criteria; no framework/DB/library/performance tests. - Update Linear/kanban for this task only: Todo -> In Progress -> To Review. **Hex-line acceleration (if available):** Use `outline(path)` before reading test targets. Use `inspect_path(path="tests/")` to understand test structure; it is minimal by default, so only deepen when the first pass is insufficient. Use `read_file()` and `edit_file()` as the primary path for test/code/config files. Keep `read_file()` in discovery mode for normal inspection; use `read_file(edit_ready=true, verbosity="full")` before edits that need revision/checksum protocol. Use `verify()` and `changes()` before handoff. Built-in Read/Edit are fallback only when hex-line is unavailable. ## Inputs | Input | Required | Source | D...