Gsd Execute Phase

B. AskUserQuestion → request_user_input Mapping

GSD workflows use AskUserQuestion (Claude Code syntax). Translate to Codex request_user_input:

Parameter mapping:

• header → header
• question → question
• Options formatted as "Label" — description → {label: "Label", description: "description"}
• Generate id from header: lowercase, replace spaces with underscores

Batched calls:

• AskUserQuestion([q1, q2]) → single request_user_input with multiple entries in questions[]

Multi-select workaround:

• Codex has no multiSelect. Use sequential single-selects, or present a numbered freeform list asking the user to enter comma-separated numbers.

Execute mode fallback:

• When request_user_input is rejected (Execute mode), present a plain-text numbered list and pick a reasonable default.

C. Task() → spawn_agent Mapping

GSD workflows use Task(...) (Claude Code syntax). Translate to Codex collaboration tools:

Direct mapping:

• Task(subagent_type="X", prompt="Y") → spawn_agent(agent_type="X", message="Y")
• Task(model="...") → omit (Codex uses per-role config, not inline model selection)
• fork_context: false by default — GSD agents load their own context via <files_to_read> blocks

Parallel fan-out:

• Spawn multiple agents → collect agent IDs → wait(ids) for all to complete

Result parsing:

• Look for structured markers in agent output: CHECKPOINT, PLAN COMPLETE, SUMMARY, etc.
• close_agent(id) after collecting results from each agent

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 {{GSD_ARGS}}
• If a documented flag is absent from {{GSD_ARGS}}, treat it as inactive

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

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 {{GSD_ARGS}}:

• --wave N is active only if the literal --wave token is present in {{GSD_ARGS}}
• --gaps-only is active only if the literal --gaps-only token is present in {{GSD_ARGS}}
• --interactive is active only if the literal --interactive token is present in {{GSD_ARGS}}
• 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 init execute-phase and per-subagent <files_to_read> blocks.