From GSD Core
Clarifies phase requirements through structured Socratic questioning with quantitative ambiguity scoring, producing a SPEC.md before discuss-phase.
How this skill is triggered — by the user, by Claude, or both
Slash command
/gsd-core:gsd-spec-phase <phase> [--auto] [--text]<phase> [--auto] [--text]This skill is limited to the following tools:
The summary Claude sees in its skill listing — used to decide when to auto-load this skill
<objective>
Position in workflow: spec-phase → discuss-phase → plan-phase → execute-phase → verify
How it works:
Output: {phase_dir}/{padded_phase}-SPEC.md — falsifiable requirements that lock "what/why" before discuss-phase handles "how"
<execution_context>
@/.claude/gsd-core/workflows/spec-phase.md
@/.claude/gsd-core/templates/spec.md
</execution_context>
<runtime_note>
Copilot (VS Code): Use vscode_askquestions wherever this workflow calls AskUserQuestion. They are equivalent.
</runtime_note>
Flags:
--auto — Skip interactive questions; Claude selects recommended defaults and writes SPEC.md--text — Use plain-text numbered lists instead of TUI menus (required for /rc remote sessions)Context files are resolved in-workflow using init phase-op.
MANDATORY: Read the workflow file BEFORE taking any action. The workflow contains the complete step-by-step process including the Socratic interview loop, ambiguity scoring gate, and SPEC.md generation. Do not improvise from the objective summary above.
<success_criteria>
npx claudepluginhub open-gsd/gsd-coreAsks up to 5 targeted clarification questions to identify underspecified areas in a feature spec, then encodes answers back into the spec file.
Converts vague feature ideas into written, agreed specifications through structured questioning across nine dimensions. Produces docs/specs/*.md with acceptance criteria for planning, scaffolding, and TDD tools.
Creates structured specifications before coding to clarify requirements, surface assumptions, and align on scope. Use when starting a new project, feature, or significant change with ambiguous or incomplete requirements.