5.0 KiB
Feature Specification: [FEATURE NAME]
Feature Branch: [###-feature-name]
Created: [DATE]
Status: Draft
Input: User description: "$ARGUMENTS"
Constitution Alignment (REQUIRED)
This spec MUST comply with constitution.md. If not, document deviation + mitigation here.
Mandatory Invariants
- Server computes price; client is display-only
- DB-level prevention of double booking
- Webhooks + rendering pipeline are idempotent
- Rendering occurs in queued job(s)
Success Criteria (MUST)
Define measurable outcomes for "done".
- Performance:
- Public page loads master image + metadata within ___ ms on ___ connection
- Correctness:
- No double booking possible under concurrency
- Paid orders render exactly once (idempotent)
- UX:
- User can select cells, preview, and pay end-to-end
- Security:
- Upload rules enforced (type/size/dimensions), safe link validation
Acceptance Scenarios (MUST)
Write at least 3 end-to-end scenarios (Gherkin-style preferred).
Scenario 1: Reserve → Pay → Render
Given … When … Then …
Scenario 2: Concurrent selection conflict
Given … When … Then …
Scenario 3: Webhook replay / retry
Given … When … Then …
Scope (See above for file contents. You may not need to search or read the file again.)
User Scenarios & Testing (mandatory)
User Story 1 - [Brief Title] (Priority: P1)
[Describe this user journey in plain language]
Why this priority: [Explain the value and why it has this priority level]
Independent Test: [Describe how this can be tested independently - e.g., "Can be fully tested by [specific action] and delivers [specific value]"]
Acceptance Scenarios:
- Given [initial state], When [action], Then [expected outcome]
- Given [initial state], When [action], Then [expected outcome]
User Story 2 - [Brief Title] (Priority: P2)
[Describe this user journey in plain language]
Why this priority: [Explain the value and why it has this priority level]
Independent Test: [Describe how this can be tested independently]
Acceptance Scenarios:
- Given [initial state], When [action], Then [expected outcome]
User Story 3 - [Brief Title] (Priority: P3)
[Describe this user journey in plain language]
Why this priority: [Explain the value and why it has this priority level]
Independent Test: [Describe how this can be tested independently]
Acceptance Scenarios:
- Given [initial state], When [action], Then [expected outcome]
[Add more user stories as needed, each with an assigned priority]
Edge Cases
- What happens when [boundary condition]?
- How does system handle [error scenario]?
Requirements (mandatory)
Functional Requirements
- FR-001: System MUST [specific capability, e.g., "allow users to create accounts"]
- FR-002: System MUST [specific capability, e.g., "validate email addresses"]
- FR-003: Users MUST be able to [key interaction, e.g., "reset their password"]
- FR-004: System MUST [data requirement, e.g., "persist user preferences"]
- FR-005: System MUST [behavior, e.g., "log all security events"]
Example of marking unclear requirements:
- FR-006: System MUST authenticate users via [NEEDS CLARIFICATION: auth method not specified - email/password, SSO, OAuth?]
- FR-007: System MUST retain user data for [NEEDS CLARIFICATION: retention period not specified]
Key Entities (include if feature involves data)
- [Entity 1]: [What it represents, key attributes without implementation]
- [Entity 2]: [What it represents, relationships to other entities]
Success Criteria (mandatory)
Measurable Outcomes
- SC-001: [Measurable metric, e.g., "Users can complete account creation in under 2 minutes"]
- SC-002: [Measurable metric, e.g., "System handles 1000 concurrent users without degradation"]
- SC-003: [User satisfaction metric, e.g., "90% of users successfully complete primary task on first attempt"]
- SC-004: [Business metric, e.g., "Reduce support tickets related to [X] by 50%"]