# Workflow Sdd

> SDD workflow detail layer for specification-driven development after workflow selection is known. Use when the task is already confirmed as SDD, the user explicitly requests @SDD or legacy alias @sdd, or intake has classified the task as spec-first delivery where implementation, tests, and acceptance derive from an approved spec bundle. Produces dated and versioned workflow docs under the active project's root docs/YYYY_MM_DD_中文任务名_vN/ directory.

- Skill: `awfaups/workflow-sdd` (Agent Skill, multi-file: 9 files)
- Install (CLI): `npx skillmds@latest add awfaups/workflow-sdd`
- Raw SKILL.md: https://api.skillmd.com/api/skills/awfaups/workflow-sdd/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Productivity
- Author: awfaups (https://skillmd.com/u/awfaups)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/awfaups/workflow-sdd

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# Workflow SDD

Use this skill only when the workflow type is already known to be `SDD`.

Treat this skill as a detail layer, not a public governance entry.

- If the request still needs intake, routing, or cross-role governance, enter through `@intake` first.
- Use this skill after workflow selection is settled.
- Keep global handoff policy in `intake-governance`; keep SDD stage rules here and in `references/sdd.md`.

## Activation response

> ✅ Specification-Driven Development 工作流（SDD）已激活
> 当前阶段：Spec（规格定义）

## Execution contract

This skill enforces:

- spec-first workflow only
- required docs as mandatory deliverables
- docs under `docs/YYYY_MM_DD_中文任务名_vN/`
- refined internal gates: Init, Explore, Propose, Spec, Plan, Design, Atomize, Approve, Execute, Verify, and Archive
- implementation derived from approved specs
- pre-spec discovery and proposal work before formal spec finalization
- requirement, task, implementation, test, and acceptance traceability
- user clarification when the spec cannot safely determine behavior, scope, or acceptance
- explicit user confirmation of the spec bundle before code generation
- test-first implementation when the project test setup supports it
- post-verify archive and closure records
- no execution before the required spec bundle exists and the user has confirmed it

## Read next

- `references/sdd.md`