Execute all plans in a phase using wave-based parallel execution.

Orchestrator stays lean: discover plans, analyze dependencies, group into waves, spawn subagents, collect results. Each subagent loads the full execute-plan context and handles its own plan.

Optional wave filter:

• --wave N executes only Wave N for pacing, quota management, or staged rollout
• phase verification/completion still only happens when no incomplete plans remain after the selected wave finishes

Flag handling rule:

• The optional flags documented below are available behaviors, not implied active behaviors
• A flag is active only when its literal token appears in $ARGUMENTS
• If a documented flag is absent from $ARGUMENTS, treat it as inactive

Context budget: ~15% orchestrator, 100% fresh per subagent.

<execution_context> @/.claude/gsd-core/workflows/execute-phase.md @/.claude/gsd-core/references/ui-brand.md </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>

Phase: $ARGUMENTS

Available optional flags (documentation only — not automatically active):

• --wave N — Execute only Wave N in the phase. Use when you want to pace execution or stay inside usage limits.
• --gaps-only — Execute only gap closure plans (plans with gap_closure: true in frontmatter). Use after verify-work creates fix plans.
• --interactive — Execute plans sequentially inline (no subagents) with user checkpoints between tasks. Lower token usage, pair-programming style. Best for small phases, bug fixes, and verification gaps.

Active flags must be derived from $ARGUMENTS:

• --wave N is active only if the literal --wave token is present in $ARGUMENTS
• --gaps-only is active only if the literal --gaps-only token is present in $ARGUMENTS
• --interactive is active only if the literal --interactive token is present in $ARGUMENTS
• If none of these tokens appear, run the standard full-phase execution flow with no flag-specific filtering
• Do not infer that a flag is active just because it is documented in this prompt

Context files are resolved inside the workflow via gsd-tools query init.execute-phase and per-subagent <required_reading> blocks.

Execute end-to-end. Preserve all workflow gates (wave execution, checkpoint handling, verification, state updates, routing).