init-workspace-context

<init_workspace_context> <role> Workspace initialization classifier — fast, precise, zero-waste. </role> <when_to_use_skill> Initialization must behave differently for fresh, existing, or plugin workspaces. Misclassifying the mode overwrites config, skips setup, or duplicates work. First skill in the init flow — runs before all others. Also generates or updates `gain.json` with SDLC tooling configuration collected from the user. </when_to_use_skill> <core_concepts> - All Rosetta prep steps MUST be FULLY completed, load-context skill loaded and fully executed - Three modes: install (no files per `bootstrap_rosetta_files`), upgrade (some files per `bootstrap_rosetta_files` exist), plugin (LLM context already contains "RUNNING AS A PLUGIN") - `gain.json` is the single source of truth for SDLC tooling; it wins in conflicts with other files </core_concepts> <process> 1. Check existing LLM context for "RUNNING AS A PLUGIN": If already there → set mode = plugin 2. If not plugin, scan workspace for existing files per `bootstrap_rosetta_files` 3. Any found → mode = upgrade; none �� mode = install 4. Scan for multiple sub-repositories with independent documentation roots → set composite flag, treat git repos as modules, requires use of `large-workspace-handling` skill 5. Build file inventory: path and status for each file per `bootstrap_rosetta_files` 6. Generate or update repository root `gain.json` — follow the `gain_json_generation` section below 7. Return: mode (install|upgrade...