ln-653-runtime-performance-auditor

> **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}`. # Runtime Performance Auditor (L3 Worker) **Type:** L3 Worker Specialized worker auditing runtime performance anti-patterns in async and general code. ## Purpose & Scope - Audit **runtime performance** (Priority: MEDIUM) - Check async anti-patterns, unnecessary allocations, blocking operations - Write structured findings to file with severity, location, effort, recommendations - Calculate compliance score (X/10) for Runtime Performance category ## Inputs **MANDATORY READ:** Load `shared/references/audit_worker_core_contract.md`. Receives `contextStore` with: `tech_stack`, `best_practices`, `codebase_root`, `output_dir`. **Domain-aware:** Supports `domain_mode` + `current_domain`. ## Workflow **MANDATORY READ:** Load `shared/references/two_layer_detection.md` for detection methodology. 1) **Parse context from contextStore** - Extract tech_stack, best_practices, output_dir - Determine scan_path - Detect async framework: asyncio (Python), Node.js async, Tokio (Rust) 2) **Scan codebase for violations** - Grep patterns scoped to `scan_path` - For Rules 1, 3, 5: detect `async def` blocks first, then check for violations inside the...