gsd-discuss-phase

<objective> Extract implementation decisions that downstream agents need — researcher and planner will use CONTEXT.md to know what to investigate and what choices are locked. **How it works:** 1. Load prior context (PROJECT.md, REQUIREMENTS.md, STATE.md, prior CONTEXT.md files) 2. Scout codebase for reusable assets and patterns 3. Analyze phase — skip gray areas already decided in prior phases 4. Present remaining gray areas — user selects which to discuss 5. Deep-dive each selected area until satisfied 6. Create CONTEXT.md with decisions that guide research and planning **Output:** `{phase_num}-CONTEXT.md` — decisions clear enough that downstream agents can act without asking the user again </objective> <execution_context> Workflow files are loaded on-demand in the <process> section below — not upfront. Do not pre-load any workflow files before reading the mode routing instructions. </execution_context> <runtime_note> **Copilot (VS Code):** Use `vscode_askquestions` wherever this workflow calls `AskUserQuestion`. They are equivalent — `vscode_askquestions` is the VS Code Copilot implementation of the same interactive question API. </runtime_note> <context> Phase number: $ARGUMENTS (required) Context files are resolved in-workflow using `init phase-op` and roadmap/state tool calls. </context> <process> **Mode routing:** ```bash _GSD_SHIM_NAME="gsd-tools.cjs"; _GSD_RUNTIME_ROOT="${RUNTIME_DIR:-$(git rev-parse --show-toplevel 2>/dev/null || pwd)}"; GSD_TOOLS="${_GSD_RUNT...