defining-stories

Productivity

Guides creation of user stories and epic design documents. Use when defining new features, writing Given-When-Then criteria, creating story logs, or designing larger features that need scope definition.

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How to use this skill

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Prompt to paste

I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/majiayu000/claude-skill-registry/blob/HEAD/skills/design/defining-stories-kecbigmt-cc-plugins-0da31d9c/SKILL.md

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First, summarize what it does, its dependencies, license status if identifiable, and any risks. Show the exact files you propose to add under .agents/skills/defining-stories/. Do not write files or run scripts until I approve.

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Copying this prompt does not install or run the skill. Review third-party files before use. Codex skill guide

Defining Stories

Epic vs Story

Document	Purpose	When to Create
Epic	Design document defining scope and technical approach	Starting a larger feature
Story	Incremental deliverable with acceptance criteria	As needed during development

Agile approach: Stories emerge during development. Create each story when ready to implement.

User Story Format

As a [role], I want [capability], so that [benefit].

Acceptance Criteria

- [ ] **Given** [precondition], **When** you [action], **Then** [expected result]

Focus on user-observable behavior
Include happy paths AND error cases
Leave checkboxes unchecked (PO checks them)

Verification Approach

Define how criteria will be verified:

Project Type	Options
CLI	Direct command execution
API	curl/httpie, API testing tools
Web UI	E2E tests, browser MCP tools
Mobile	Device/emulator, MCP tools
Library	Unit/integration tests

If MCP tools or skills for testing are available, use them. If unsure, ask PO.

Story Log

File: docs/stories/<YYYYMMDDTHHMMSS>_<name>.story.md

date -u +"%Y%m%dT%H%M%S"  # Generate timestamp

See STORY_TEMPLATE.md for structure.

Epic Documents

Directory: docs/stories/<YYYYMMDD>_<epic-name>/ File: <YYYYMMDDTHHMMSS>_<epic-name>.epic.md

See EPIC_TEMPLATE.md for structure.