.md` with a mini SDLC (requirements delta → design delta → tasks → impl plan), walk through confirmation phase by phase, then implement and verify. ## File Structure ``` skills/sdlc/ ├── SKILL.md ├── README.md # this file ├── assets/ │ ├── phase-checklist.md │ ├── workflow.puml │ └── sdlc-workflow.svg └── evals/ └── evals.json ```

# SDLC Skill

Guides you through a complete software development lifecycle: requirements → design → tasks → implementation plan → code → verification.

## Architecture

![Architecture](assets/sdlc-architecture.svg)

## Workflow

![Workflow](assets/sdlc-workflow.svg)

## Starting a New Project

Just describe what you want to build:

> "帮我设计一个订单管理系统"
> "help me build a URL shortener"
> "构建一个 RAG 系统"

The agent will ask clarifying questions if needed, then walk you through each phase one at a time.

## Resuming After Interruption

If a session was interrupted, start a new session with the sdlc agent and say:

> "continue"
> "继续"
> "resume"

The agent will read `specs/STATUS.md` automatically and pick up from where it left off.

## Confirming Each Phase

After each phase the agent writes an artifact and waits. Reply with any of:

> "done" / "ok" / "looks good" / "继续" / "确认" / "approve"

If the artifact has a `## ❓ Questions` section, fill in the answers in the file first, then reply "done".

## Phases

| Phase | Output | Trigger to advance |
|---|---|---|
| 1. Requirements | `specs/requirements.md` | "done" |
| 2. Design | `specs/design.md` | "done" |
| 3. Tasks | `specs/tasks.md` | "done" |
| 4. Implementation Plan | `specs/impl-plan.md` | "done" |
| 5. Implementation | source code | automatic |
| 6. Verification | updated checkboxes + test results | automatic |

## Checking Status

At any time:

> "what phase are we on?"
> "show status"

The agent will read `specs/STATUS.md` and report current progress.

## Change Requests (CR)

After the project is implemented, to add a new feature or significant change:

> "add semantic search support"
> "新增一个 REST API 接口"
> "CR: support multi-language"

The agent will create `specs/crs/CR-<N>-<title>.md` with a mini SDLC (requirements delta → design delta → tasks → impl plan), walk through confirmation phase by phase, then implement and verify.

## File Structure

```
skills/sdlc/
├── SKILL.md
├── README.md          # this file
├── assets/
│   ├── phase-checklist.md
│   ├── workflow.puml
│   └── sdlc-workflow.svg
└── evals/
    └── evals.json
```