ln-010-dev-environment-setup

> **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. # Dev Environment Setup **Type:** L2 Domain Coordinator **Category:** 0XX Shared Runtime-backed coordinator for environment setup. The runtime is the execution SSOT. Worker outputs are standalone summaries, not chat prose. ## MANDATORY READ Load these before execution: - `shared/references/coordinator_runtime_contract.md` - `shared/references/environment_setup_runtime_contract.md` - `shared/references/coordinator_summary_contract.md` - `shared/references/environment_state_contract.md` - `shared/references/environment_state_schema.json` ## When to Use - First-time environment setup - Agent/MCP drift after installs or updates - Config sync drift across Claude, Gemini, Codex - Instruction file audit or repair ## Inputs | Parameter | Required | Default | Description | |-----------|----------|---------|-------------| | `targets` | No | `both` | `gemini`, `codex`, or `both` | | `dry_run` | No | `false` | Plan without mutating | | `apply_ide_override` | No | `false` | Pass-through to ln-012 Phase 7b. When `true`, ln-012 may write `claudeCode.initialPermissionMode` and `claudeCode.allowDangerouslySkipPermissions` to Cursor / VSCode user settings after explicit user consent. When `false` (default), Phase 7b is detection-only and reports drift without mutating IDE settings. | ## Runtime Runtime ...