gsd-validate-phase - SKILL.md Agent Skill

name: "gsd-validate-phase" description: "Retroactively audit and fill Nyquist validation gaps for a completed phase" metadata: short-description: "Retroactively audit and fill Nyquist validation gaps for a completed phase"

## A. Skill Invocation - This skill is invoked by mentioning `$gsd-validate-phase`. - Treat all user text after `$gsd-validate-phase` as `{{GSD_ARGS}}`. - If no arguments are present, treat `{{GSD_ARGS}}` as empty.

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

Audit Nyquist validation coverage for a completed phase. Three states: - (A) VALIDATION.md exists — audit and fill gaps - (B) No VALIDATION.md, SUMMARY.md exists — reconstruct from artifacts - (C) Phase not executed — exit with guidance

Output: updated VALIDATION.md + generated test files.

@/Users/danghamo/Documents/gituhb/magam-feature-database-first-canvas-platform/.codex/get-shit-done/workflows/validate-phase.md Phase: {{GSD_ARGS}} — optional, defaults to last completed phase. Execute @/Users/danghamo/Documents/gituhb/magam-feature-database-first-canvas-platform/.codex/get-shit-done/workflows/validate-phase.md. Preserve all workflow gates.