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