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# API Contract Specification
**Document ID:** `api-[feature]-[id]-[name]`
**Status:** <!-- TODO: Draft | In Review | Approved | Deprecated -->
**Owner:** <!-- TODO: Team/Individual Name -->
**Last Updated:** <!-- TODO: YYYY-MM-DD -->
## Overview
**Purpose:** <!-- TODO: Brief description of API's purpose and primary use cases -->
**Base URL:** <!-- TODO: e.g., `https://api.example.com/v1` -->
**API Version:** <!-- TODO: e.g., v1 -->
**Stability:** <!-- TODO: Stable | Beta | Experimental -->
## Authentication
**Method:** <!-- TODO: API Key | OAuth 2.0 | JWT | Basic Auth -->
**Implementation:**
<!-- TODO: Document authentication implementation, e.g.:
```http
Authorization: Bearer {token}
```
-->
**Token Acquisition:** <!-- TODO: Brief description of how clients obtain credentials -->
**Scopes/Permissions:** <!-- TODO: List required permissions if applicable -->
## Rate Limiting
**Limits:**
<!-- TODO: Define rate limits for different tiers, e.g.:
- Anonymous: X requests/minute
- Authenticated: Y requests/minute
- Premium: Z requests/minute
-->
**Headers:**
<!-- TODO: Document rate limit headers, e.g.:
```http
X-RateLimit-Limit: 100
X-RateLimit-Remaining: 95
X-RateLimit-Reset: 1234567890
```
-->
**Exceeded Limit Response:** <!-- TODO: Document behavior when rate limit exceeded, e.g., HTTP 429 with Retry-After header -->
## Endpoints
### <!-- TODO: Resource Name -->
#### <!-- TODO: List [Resources] -->
```http
GET /<!-- TODO: endpoint path -->
```
**Query Parameters:**
<!-- TODO: Document query parameters in table format:
| Parameter | Type | Required | Description |
|-----------|------|----------|-------------|
| `param1` | type | Yes/No | Description |
-->
**Response:** <!-- TODO: Status code, e.g., `200 OK` -->
<!-- TODO: Document response format:
```json
{
"data": [],
"pagination": {}
}
```
-->
#### <!-- TODO: Get [Resource] -->
```http
GET /<!-- TODO: endpoint path with parameter -->
```
**Path Parameters:**
<!-- TODO: Document path parameters:
| Parameter | Type | Description |
|-----------|------|-------------|
| `id` | string | Description |
-->
**Response:** <!-- TODO: Status code and example response -->
#### <!-- TODO: Create [Resource] -->
```http
POST /<!-- TODO: endpoint path -->
```
**Request Body:**
<!-- TODO: Document request body schema:
```json
{
"field": "value"
}
```
-->
**Response:** <!-- TODO: Status code and example response -->
#### <!-- TODO: Update [Resource] -->
```http
PUT /<!-- TODO: endpoint path -->
PATCH /<!-- TODO: endpoint path -->
```
**Request Body:** <!-- TODO: Document request body requirements -->
**Response:** <!-- TODO: Status code and example response -->
#### <!-- TODO: Delete [Resource] -->
```http
DELETE /<!-- TODO: endpoint path -->
```
**Response:** <!-- TODO: Status code, e.g., `204 No Content` -->
## Data Models
### <!-- TODO: Model Name -->
<!-- TODO: Document data model fields:
| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `id` | string | Yes | Unique identifier |
| `field` | type | Yes/No | Description |
-->
**Constraints:**
<!-- TODO: Document validation rules and constraints:
- Constraint description
-->
## Error Handling
**Error Response Format:**
<!-- TODO: Document error response structure:
```json
{
"error": {
"code": "error_code",
"message": "Error message",
"details": [],
"request_id": "req_id"
}
}
```
-->
**Standard Error Codes:**
<!-- TODO: Document error codes:
| HTTP Status | Error Code | Description |
|-------------|------------|-------------|
| 400 | `validation_error` | Invalid request data |
| 401 | `authentication_error` | Missing or invalid credentials |
-->
## Pagination
<!-- TODO: Document pagination approach (offset-based, cursor-based, etc.):
**Offset-Based Pagination:**
```http
GET /resources?limit=20&offset=40
```
**Response Format:**
```json
{
"data": [],
"pagination": {
"total": 100,
"limit": 20,
"offset": 40
}
}
```
-->
## Webhooks
<!-- TODO: OPTIONAL - Remove this section if webhooks are not applicable
**Supported Events:**
- Event description
**Webhook Payload:**
```json
{
"id": "evt_id",
"type": "event.type",
"data": {}
}
```
**Endpoint Requirements:**
- Requirement description
**Signature Verification:**
- Verification method
**Retry Policy:**
- Retry strategy
-->

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# <!-- TODO: [BRD-XXX] Business Requirement Title -->
## Metadata
- **Document ID**: <!-- TODO: BRD-XXX-short-name -->
- **Status**: <!-- TODO: Draft | In Review | Approved | Implemented -->
- **Author**: <!-- TODO: Your Name -->
- **Created**: <!-- TODO: YYYY-MM-DD -->
- **Last Updated**: <!-- TODO: YYYY-MM-DD -->
- **Stakeholders**: <!-- TODO: List key stakeholders -->
- **Priority**: <!-- TODO: Critical | High | Medium | Low -->
## Description
<!-- TODO: Describe the business problem or opportunity. What challenge are we addressing? -->
### Background
<!-- TODO: Provide context about the current situation and why this requirement emerged. -->
### Problem Statement
<!-- TODO: Clear, concise statement of the problem this requirement solves. -->
## Business Value
<!-- TODO: Explain the expected business impact and benefits. -->
### Expected Outcomes
<!-- TODO: List expected outcomes, e.g.:
- **Outcome 1**: Brief description of expected result
- **Outcome 2**: Brief description of expected result
-->
### Strategic Alignment
<!-- TODO: How does this align with broader business goals or strategy? -->
## Stakeholders
<!-- TODO: Document stakeholders in table format:
| Role | Name/Team | Responsibility | Contact |
|------|-----------|----------------|---------|
| Business Owner | | Decision maker | |
| Product Owner | | Requirements definition | |
| End Users | | Primary users | |
| Technical Lead | | Implementation oversight | |
-->
## User Stories
<!-- TODO: Document user stories in table format:
| ID | As a... | I want to... | So that... | Priority |
|----|---------|--------------|------------|----------|
| US-1 | [role] | [capability] | [benefit] | High |
| US-2 | [role] | [capability] | [benefit] | Medium |
-->
## Assumptions
<!-- TODO: List assumptions being made about users, systems, or business conditions.
1. Assumption about user behavior or system capability
2. Assumption about resources or timeline
3. Assumption about business context
-->
## Constraints
<!-- TODO: Identify limitations or restrictions that must be respected. -->
### Business Constraints
<!-- TODO: Document business constraints, e.g., budget limitations, regulatory requirements, market timing -->
### Technical Constraints
<!-- TODO: Document technical constraints, e.g., system limitations, integration requirements, platform restrictions -->
### Organizational Constraints
<!-- TODO: Document organizational constraints, e.g., team capacity, skill requirements, policy limitations -->
## Dependencies
<!-- TODO: List dependencies on other projects, systems, or decisions in table format:
| Dependency | Type | Status | Impact if Blocked |
|------------|------|--------|-------------------|
| [Project/System] | Internal/External | In Progress | High/Medium/Low |
-->
## Risks
<!-- TODO: Identify potential risks and mitigation strategies in table format:
| Risk | Likelihood | Impact | Mitigation Strategy |
|------|------------|--------|---------------------|
| [Risk description] | High/Med/Low | High/Med/Low | [How to mitigate] |
-->
## Acceptance Criteria
<!-- TODO: Define what "done" looks like from a business perspective.
1. **Criterion 1**: Specific, measurable condition that must be met
2. **Criterion 2**: Specific, measurable condition that must be met
3. **Criterion 3**: Specific, measurable condition that must be met
-->
## Success Metrics
<!-- TODO: Define how success will be measured after implementation in table format:
| Metric | Current Baseline | Target | Measurement Method |
|--------|------------------|--------|-------------------|
| [KPI name] | [Current value] | [Target value] | [How measured] |
-->
### Time to Value
<!-- TODO: When do we expect to see results? What's the measurement timeline? -->
## Approval
<!-- TODO: OPTIONAL - Remove if not needed. Sign-off section for key stakeholders:
| Role | Name | Signature | Date |
|------|------|-----------|------|
| Business Owner | | | |
| Product Owner | | | |
| Technical Lead | | | |
-->

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### Component
# <!-- TODO: Component title and ID, e.g., #[CMP-001] User Authentication Service -->
Type: <!-- TODO: app | service | library -->
Priority: <!-- TODO: critical | high | medium | low -->
## Overview
<!-- TODO: Describe what this component does, why it exists, and who depends on it -->
### Component Details
- **Type**: <!-- TODO: app | service | library -->
- **Purpose**: <!-- TODO: single sentence describing primary purpose -->
- **Owner/Team**: <!-- TODO: team responsible for maintenance -->
- **Repository**: <!-- TODO: URL or path -->
- **Production URL**: <!-- TODO: endpoint or access point (if applicable) -->
## Technology Stack
<!-- TODO: Document core technologies. Example:
```yaml
language:
name: JavaScript/Node.js
version: 18 LTS
purpose: Runtime environment
framework:
name: Express
version: 4.18.2
purpose: Web framework
database:
name: PostgreSQL
version: 14
purpose: Primary data store
```
-->
## Scope
### Responsibilities
<!-- TODO: What this component IS responsible for (bullet points) -->
### Exclusions
<!-- TODO: What this component is NOT responsible for (bullet points) -->
## Dependencies
### Internal Dependencies
<!-- TODO: Other components this depends on. Format:
- **Component Name** (Hard/Soft/Messaging)
**Purpose**: Why needed
**Criticality**: Critical/High/Medium/Low
-->
### External Dependencies
<!-- TODO: Third-party services and libraries. Format:
**Services**:
- **Service Name** (Version)
**Purpose**: Why needed
**Criticality**: Critical/High/Medium/Low
**Libraries**:
- **Library Name** (Version)
**Purpose**: Why needed
**Criticality**: Critical/High/Medium/Low
-->
## API & Interface
<!-- TODO: Public endpoints, methods, or interfaces exposed. Format:
- **Endpoint/Method**: <name>
**Description**: <what it does>
**Parameters**: <input>
**Response**: <output>
-->
**API Documentation**: <!-- TODO: link to detailed API docs -->
## Configuration
<!-- TODO: Document key configuration areas and reference full configuration spec
Key areas:
- Database connection settings
- Authentication and security
- Third-party integrations
- Performance tuning
See [Configuration Schema](#) for complete environment variables and settings.
-->
### Secrets Management
<!-- TODO: Required secrets (no actual values). Format:
- **SECRET_NAME**
**Purpose**: What it's used for
**Rotation Policy**: Frequency
-->
## Deployment
**Platform**: <!-- TODO: AWS/GCP/Azure/Docker/Kubernetes/etc -->
**Environment**: <!-- TODO: dev/staging/production setup -->
**Deployment Strategy**: <!-- TODO: blue-green/canary/rolling -->
**Build Command**: <!-- TODO: command to build -->
**Deploy Command**: <!-- TODO: command to deploy -->
**Build Artifacts**: <!-- TODO: what gets produced -->
### Deployment Notes
<!-- TODO: Special considerations:
- Database migrations required
- Backward compatibility
- Health check endpoints
- Rollback procedures
-->
For complete deployment procedures, see [Deployment Procedure Specification](#).
## Monitoring
**Logs Location**: <!-- TODO: where logs are stored -->
**Log Aggregation**: <!-- TODO: Datadog/CloudWatch/ELK/etc -->
**Dashboard**: <!-- TODO: link to monitoring dashboard -->
### Key Metrics
<!-- TODO: Metrics to monitor. Format:
**Response time (p95)**
- **Target**: <100ms
- **Alert Threshold**: >500ms
**Error rate**
- **Target**: <0.1%
- **Alert Threshold**: >1%
-->
### Health Checks
**Health Check Endpoint**: <!-- TODO: URL or command -->
<!-- TODO: Alerts. Format:
- **Alert**: <condition>
**Threshold**: <when to trigger>
**Action**: <response procedure>
-->
## Testing
**Test Coverage**: <!-- TODO: percentage -->
**Test Command**: <!-- TODO: command to run tests -->
**Testing Strategy**: <!-- TODO: unit/integration/e2e approach -->
**E2E Tests**: <!-- TODO: link to tests -->
## Development
**Local Setup**: <!-- TODO: steps for dev environment -->
**Development Port**: <!-- TODO: port number -->
**Code Style**: <!-- TODO: linting/formatting tools -->
**Contributing Guide**: <!-- TODO: link to guidelines -->
## Known Issues
<!-- TODO: Document known issues. OPTIONAL: Remove if none. Format:
- **Issue**: <description>
**Impact**: <what's affected>
**Workaround**: <mitigation>
**Status**: Open/In Progress/Planned/Won't Fix
-->
## Future Considerations
<!-- TODO: Planned improvements. OPTIONAL: Remove if none.
- Planned features or enhancements
- Technical debt to address
- Scaling considerations
- Technology upgrades
- Performance optimizations
-->

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# Configuration Schema: <!-- TODO: Feature Name -->
**Document ID:** `config-[project]-[feature-number]-[slug]`
**Created:** <!-- TODO: YYYY-MM-DD -->
**Status:** <!-- TODO: Draft | Active | Deprecated -->
**Owner:** <!-- TODO: Team/Individual -->
---
## Overview
### Purpose
<!-- TODO: Brief description of what this configuration controls -->
### Scope
<!-- TODO: Which components/services use this configuration -->
### Configuration Files
<!-- TODO: List configuration files and their locations, e.g.:
- **Primary:** `config/[environment].yml`
- **Overrides:** `config/local.yml` (git-ignored)
- **Secrets:** Environment variables or vault
-->
### Precedence Order
<!-- TODO: How configuration sources are merged, highest priority first, e.g.:
1. Environment variables
2. Local overrides (`config/local.yml`)
3. Environment-specific (`config/production.yml`, `config/development.yml`)
4. Base defaults (`config/default.yml`)
-->
---
## Configuration Structure
### File Organization
<!-- TODO: Document configuration file structure using YAML or JSON format example -->
---
## Common Settings
### Server Configuration
<!-- TODO: Document server configuration settings with examples, e.g.:
```yaml
server:
host: localhost
port: 3000
timeout: 30000 # milliseconds
```
**Key Settings:**
- `host`: Server bind address
- `port`: Server port number
-->
### Database Configuration
<!-- TODO: Document database configuration settings with examples, e.g.:
```yaml
database:
adapter: postgresql
host: localhost
port: 5432
name: app_development
username: dbuser
password: ${DB_PASSWORD} # Use env var
```
**Key Settings:**
- `adapter`: Database type
- `pool.max`: Maximum database connections
-->
### Cache Configuration
<!-- TODO: OPTIONAL - Remove if not applicable. Document cache configuration:
```yaml
cache:
adapter: redis
host: localhost
port: 6379
ttl: 3600 # seconds
```
-->
### Logging Configuration
<!-- TODO: Document logging configuration settings with examples, e.g.:
```yaml
logging:
level: info # debug, info, warn, error
format: json # json, text
outputs:
- type: console
- type: file
path: logs/app.log
```
**Key Settings:**
- `level`: Minimum log level to output
- `format`: Log output format
-->
### Security Configuration
<!-- TODO: Document security configuration settings with examples, e.g.:
```yaml
security:
jwt:
secret: ${JWT_SECRET} # Use env var
expiry: 3600 # seconds
cors:
enabled: true
allowed_origins:
- "http://localhost:3000"
```
**Key Settings:**
- Document important security settings
-->
---
## Required vs Optional
### Required Configuration
<!-- TODO: Document configuration that MUST be set for the application to start
**Environment Variables:**
```bash
# Required in all environments
DB_PASSWORD=<database-password>
JWT_SECRET=<jwt-signing-secret>
```
**Validation Rules:**
- List validation rules
-->
### Optional Configuration
<!-- TODO: Document configuration with sensible defaults
**Settings with Defaults:**
- `setting.name`: Defaults to value
-->
---
## Feature Flags
<!-- TODO: OPTIONAL - Remove if not applicable. Document feature flags:
```yaml
features:
new_feature:
enabled: false
rollout_percentage: 0 # 0-100
experimental_feature:
enabled: false
environments:
- development
- staging
```
**Feature Flag Guidelines:**
- Default to `false` for new features
- Use `rollout_percentage` for gradual rollout
-->
---
## Configuration Examples
### Development Environment
<!-- TODO: Document development environment configuration example:
```yaml
# config/development.yml
server:
host: localhost
port: 3000
database:
adapter: postgresql
host: localhost
port: 5432
name: app_development
```
-->
### Production Environment
<!-- TODO: Document production environment configuration example:
```yaml
# config/production.yml
server:
host: 0.0.0.0
port: 8080
database:
adapter: postgresql
host: db.production.internal
port: 5432
name: app_production
```
-->
---
## Configuration Validation
### Startup Validation
<!-- TODO: Document checks performed when application starts
**Validation Steps:**
1. Required environment variables are set
2. Configuration files are valid YAML/JSON
3. Database connection is successful
4. Port is available
**Failure Behavior:**
- Application fails to start if validation fails
- Error messages indicate which configuration is invalid
-->
### Runtime Validation
<!-- TODO: OPTIONAL - Remove if not applicable. Document checks performed during operation
**Health Checks:**
- Database connection pool health
- Cache connectivity
**Monitoring Alerts:**
- Connection pool exhaustion
- Cache miss rate exceeds threshold
-->
---
## Environment Variables Reference
<!-- TODO: Document all environment variables:
```bash
# Database
DB_PASSWORD=<required>
# Security
JWT_SECRET=<required-min-32-chars>
API_KEY=<optional>
# External Services
REDIS_URL=<optional-defaults-to-config>
```
-->
---
## Troubleshooting
### Common Issues
<!-- TODO: Document common configuration issues and solutions
**Application won't start:**
- Check required environment variables are set
- Verify database connection settings
- Ensure port is not already in use
**Performance issues:**
- Review database pool settings
- Check cache hit rate and TTL settings
- Verify logging level is not set to `debug` in production
**Configuration not taking effect:**
- Check configuration precedence order
- Verify environment variable names match exactly
- Restart application after config changes
-->

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# <!-- TODO: Constitution Name, e.g., API Design Constitution -->
**Type**: `constitution`
**Status**: <!-- TODO: draft | active | deprecated -->
**Domain**: <!-- TODO: e.g., api-design, code-review, architecture, testing -->
---
## Overview
### Purpose
<!-- TODO: 1-2 sentences describing what this constitution governs and why it exists -->
### Scope
**Applies to**:
<!-- TODO: List what this constitution covers:
- What this constitution covers
- Specific areas or scenarios
-->
**Does not apply to**:
<!-- TODO: List explicit exclusions:
- Explicit exclusions
- Out of scope scenarios
-->
---
## Articles
### Article 1: <!-- TODO: Principle Name -->
**Principle**: <!-- TODO: Clear, actionable statement of the principle -->
**Rationale**: <!-- TODO: Why this principle matters and what problems it solves -->
**Examples**:
<!-- TODO: Provide good and bad examples:
- ✅ **Good**: Brief example demonstrating the principle
- ❌ **Bad**: Brief counter-example violating the principle
-->
**Exceptions**: <!-- TODO: When this principle may not apply, or "None" -->
---
### Article 2: <!-- TODO: Principle Name -->
**Principle**: <!-- TODO: Clear, actionable statement of the principle -->
**Rationale**: <!-- TODO: Why this principle matters and what problems it solves -->
**Examples**:
<!-- TODO: Provide good and bad examples:
- ✅ **Good**: Brief example demonstrating the principle
- ❌ **Bad**: Brief counter-example violating the principle
-->
**Exceptions**: <!-- TODO: When this principle may not apply, or "None" -->
---
### Article 3: <!-- TODO: Principle Name -->
**Principle**: <!-- TODO: Clear, actionable statement of the principle -->
**Rationale**: <!-- TODO: Why this principle matters and what problems it solves -->
**Examples**:
<!-- TODO: Provide good and bad examples:
- ✅ **Good**: Brief example demonstrating the principle
- ❌ **Bad**: Brief counter-example violating the principle
-->
**Exceptions**: <!-- TODO: When this principle may not apply, or "None" -->
---
<!-- TODO: Add more articles as needed (3-7 total recommended). Copy the article template above. -->
---
## Governance
### Amendment Process
<!-- TODO: How this constitution can be modified. Example: "Amendments require team consensus and PR approval" -->
### Enforcement
<!-- TODO: How adherence is ensured. Example: "Enforced through code review checklist" or "Validated in CI/CD pipeline" -->
### Conflict Resolution
<!-- TODO: How conflicts with other constitutions or guidelines are resolved -->
---
## Notes
<!-- TODO: OPTIONAL - Remove if not applicable. Any additional context, references, or clarifications -->

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### Data Model
# <!-- Title and ID, e.g., #[DM-001] User Account Data Model -->
Version: <!-- e.g., 1.0.0 -->
Status: <!-- Draft | Stable | Deprecated -->
Last Updated: <!-- YYYY-MM-DD -->
## Overview
<!-- Brief overview: purpose, primary entities, and how they fit in the larger architecture -->
## Entity Definitions
### <!-- [ent-001] Entity Name (e.g., User) -->
**Description**: <!-- What this entity represents -->
**Primary Key**: <!-- Field name and type, e.g., id (UUID) -->
**Relationships**:
<!-- Document key relationships using arrow notation:
- **owns** → Organization (1:many) - User belongs to one org
- **member_of** ↔ Team (many:many) - User can be in multiple teams
-->
#### Fields
```json
{
"id": {
"type": "UUID",
"required": true,
"constraints": ["Unique"],
"indexed": true,
"description": "Unique identifier"
},
"email": {
"type": "string",
"required": true,
"constraints": ["Unique", "Email format"],
"indexed": true,
"description": "User's email address"
},
"name": {
"type": "string",
"required": true,
"constraints": ["1-255 chars"],
"description": "User's full name"
},
"status": {
"type": "enum(active|inactive|suspended)",
"required": true,
"default": "active",
"indexed": true,
"description": "Account status"
},
"created_at": {
"type": "timestamp",
"required": true,
"default": "NOW",
"indexed": true,
"description": "Creation timestamp"
},
"updated_at": {
"type": "timestamp",
"required": true,
"default": "NOW",
"description": "Last update timestamp"
}
}
```
#### Example
```json
{
"id": "usr_123abc",
"email": "john.doe@example.com",
"name": "John Doe",
"status": "active",
"created_at": "2024-01-15T10:30:00Z",
"updated_at": "2024-01-15T10:30:00Z"
}
```
---
### <!-- [ent-002] Additional Entity -->
**Description**: <!-- What this entity represents -->
**Primary Key**: <!-- Field name and type -->
**Relationships**: <!-- Document relationships -->
#### Fields
```json
{
"id": {
"type": "UUID",
"required": true,
"indexed": true,
"description": "Unique identifier"
}
}
```
#### Example
```json
{
"id": "123"
}
```
---
## Relationships & Cardinality
<!-- Document key relationships between entities:
### User - Organization Relationship
**Cardinality**: User many → Organization one
**Implementation**: Foreign key `organization_id` in User table
**Cascade Behavior**: On delete, mark users as deleted
**Description**: Each user belongs to one organization
### User - Team Relationship
**Cardinality**: User many ↔ Team many
**Implementation**: Join table `user_team_memberships` with user_id, team_id, role, joined_at
**Description**: Users can be members of multiple teams
For complex relationships, reference a Flow Schematic.
-->
## Indexing Strategy
<!-- Document indexes for query optimization:
### Primary Indexes
- `id` (Primary Key) - Entity lookups by ID
- `email` (Unique) - User login/lookup
- `organization_id` - Query users by organization
### Composite Indexes
- `(organization_id, status)` - Filter active users per org
- `(created_at, status)` - Time-based queries
### Performance Targets
- Lookup by ID: < 10ms
- Lookup by email: < 10ms
- Query by organization: < 100ms for 100k users
-->
---

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# [Feature Name] Deployment Procedure
## Document Metadata
| Field | Value |
|-------|-------|
| **Document Type** | Deployment Procedure (DEPLOY) |
| **Document ID** | `deploy-[project]-[nnn]-[feature-name]` |
| **Status** | Draft |
| **Version** | 1.0.0 |
| **Author** | [Author Name] |
| **Approver** | [Deployment Lead/DevOps Lead] |
| **Related Specs** | [Links to PRD, Technical Design, etc.] |
---
## Overview
### Purpose
<!-- Brief description of what this deployment accomplishes -->
### Scope
<!-- What systems/services are affected by this deployment -->
### Risk Level
<!-- Select one: Low / Medium / High -->
**Risk Level:** [Low/Medium/High]
**Risk Factors:**
- <!-- Key risk 1 -->
- <!-- Key risk 2 -->
---
## Prerequisites
### Required Access
- [ ] Production deployment credentials
- [ ] Database access (if applicable)
- [ ] Cloud provider console access
- [ ] Monitoring dashboard access
- [ ] Communication channels (Slack, PagerDuty, etc.)
### Required Approvals
- [ ] Code review completed
- [ ] Security review (if applicable)
- [ ] Deployment lead approval
- [ ] Stakeholder sign-off
### Environment Readiness
- [ ] Staging deployment successful
- [ ] All tests passing in CI/CD
- [ ] Database migrations tested
- [ ] Rollback plan validated
- [ ] Monitoring/alerts configured
### Dependencies
<!-- List any external dependencies or coordinated deployments -->
- <!-- Dependency 1 -->
- <!-- Dependency 2 -->
---
## Pre-Deployment Checklist
### Code & Build
- [ ] All PRs merged to deployment branch
- [ ] Build artifacts created and verified
- [ ] Version tags applied correctly
- [ ] Release notes prepared
### Infrastructure
- [ ] Resource capacity verified (CPU, memory, disk)
- [ ] Scaling policies reviewed
- [ ] Rate limits and quotas checked
- [ ] SSL certificates valid
### Database
- [ ] Migrations tested in staging
- [ ] Migration rollback tested
- [ ] Database backups verified
- [ ] Query performance validated
### Monitoring & Observability
- [ ] Health check endpoints verified
- [ ] Key metrics dashboard ready
- [ ] Alert rules configured
- [ ] Log aggregation working
### Communication
- [ ] Deployment window scheduled and communicated
- [ ] On-call team notified
- [ ] Stakeholders informed
- [ ] Status page updated (if applicable)
### Rollback Readiness
- [ ] Previous version artifacts available
- [ ] Rollback procedure documented
- [ ] Database rollback scripts ready
- [ ] Rollback decision criteria defined
---
## Deployment Steps
### Phase 1: Pre-Deployment Setup
#### Step 1.1: Environment Preparation
```bash
# Verify current system state
# TODO: Add commands to check current deployment version
# Backup current configuration
# TODO: Add backup commands
```
**Verification:**
- [ ] Current version identified
- [ ] Backups completed successfully
#### Step 1.2: Enable Maintenance Mode (if applicable)
```bash
# TODO: Add commands to enable maintenance mode
```
**Verification:**
- [ ] Maintenance page visible
- [ ] Traffic routing confirmed
---
### Phase 2: Deployment Execution
#### Step 2.1: Database Migration (if applicable)
```bash
# Run database migrations
# TODO: Add migration commands
```
**Verification:**
- [ ] Migrations completed without errors
- [ ] Schema changes applied correctly
- [ ] Data integrity verified
#### Step 2.2: Application Deployment
```bash
# Deploy new application version
# TODO: Add deployment commands (e.g., kubectl apply, docker deploy, etc.)
```
**Verification:**
- [ ] New version deployed
- [ ] Pods/instances healthy
- [ ] No deployment errors
#### Step 2.3: Configuration Updates
```bash
# Update configuration/environment variables
# TODO: Add configuration update commands
```
**Verification:**
- [ ] Configuration changes applied
- [ ] Services reloaded/restarted
#### Step 2.4: Service Restart/Reload
```bash
# Restart affected services
# TODO: Add restart commands
```
**Verification:**
- [ ] All services running
- [ ] Health checks passing
---
### Phase 3: Post-Deployment Verification
#### Step 3.1: Health Checks
```bash
# Verify service health
# TODO: Add health check commands
```
**Verification:**
- [ ] All health endpoints returning 200
- [ ] No error logs in past 5 minutes
- [ ] All instances/pods ready
#### Step 3.2: Functional Testing
<!-- Key functionality to verify manually or via smoke tests -->
- [ ] **Test Case 1:** [Description] - Expected: [result]
- [ ] **Test Case 2:** [Description] - Expected: [result]
- [ ] **Test Case 3:** [Description] - Expected: [result]
#### Step 3.3: Monitoring Verification
**Key Metrics to Monitor:**
- [ ] Response time: [threshold]
- [ ] Error rate: [threshold]
- [ ] Throughput: [threshold]
- [ ] Resource utilization: [threshold]
```bash
# Check key metrics
# TODO: Add commands to query metrics
```
#### Step 3.4: Disable Maintenance Mode
```bash
# TODO: Add commands to disable maintenance mode
```
**Verification:**
- [ ] Normal traffic restored
- [ ] Users can access application
---
## Rollback Plan
### Rollback Decision Criteria
Initiate rollback if any of the following occur:
- Error rate exceeds [threshold]% for more than [duration] minutes
- Critical functionality broken (specifically: [list critical features])
- Performance degradation > [threshold]% from baseline
- Database corruption or data loss detected
- [Other critical failure condition]
### Rollback Procedure
#### Step R.1: Initiate Rollback
```bash
# Stop new deployment
# TODO: Add commands to halt deployment
```
#### Step R.2: Revert Application
```bash
# Deploy previous version
# TODO: Add rollback deployment commands
```
**Verification:**
- [ ] Previous version deployed
- [ ] Services healthy
#### Step R.3: Revert Database (if needed)
```bash
# Rollback database migrations
# TODO: Add migration rollback commands
```
**Verification:**
- [ ] Database schema reverted
- [ ] Data integrity verified
#### Step R.4: Revert Configuration
```bash
# Restore previous configuration
# TODO: Add configuration restore commands
```
**Verification:**
- [ ] Configuration restored
- [ ] Services using correct config
#### Step R.5: Verify Rollback
- [ ] System functionality restored
- [ ] Error rates normalized
- [ ] No data loss
- [ ] Users can access application
### Post-Rollback Actions
- [ ] Notify stakeholders of rollback
- [ ] Document rollback reason
- [ ] Schedule post-mortem
- [ ] Update deployment status
---
## Verification
### Success Criteria
<!-- Define what "successful deployment" means -->
- [ ] All services healthy for [duration] minutes
- [ ] Error rate < [threshold]%
- [ ] Response time within [threshold]ms
- [ ] No critical errors in logs
- [ ] All functional tests passing
- [ ] User traffic processing normally
### Post-Deployment Monitoring Focus
**Monitor for:**
- Application errors and exceptions
- Performance metrics (latency, throughput)
- Resource utilization
- User-reported issues
- Business metrics (if applicable)
### Sign-off
| Role | Name | Signature |
|------|------|-----------|
| Deployment Lead | | |
| Technical Lead | | |
| Operations | | |
---
## Appendix
### Environment Details
| Environment | URL/Endpoint | Version |
|-------------|--------------|---------|
| Production | | |
| Staging | | |
### Key Contacts
| Role | Name | Contact |
|------|------|---------|
| Deployment Lead | | |
| On-Call Engineer | | |
| Technical Lead | | |
| DevOps Lead | | |
### Important Commands Reference
```bash
# Check deployment status
# TODO: Add status check commands
# View logs
# TODO: Add log viewing commands
# Check metrics
# TODO: Add metrics commands
# Emergency rollback (one-liner)
# TODO: Add emergency rollback command
```
### Notes
<!-- Additional notes, special considerations, or lessons learned -->

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### Design Document
# <!-- Title and ID, e.g., #[DESIGN-001] Microservices Architecture for User Service -->
Type: <!-- Architecture | System Design | RFC | Technology Choice -->
Status: <!-- Draft | Under Review | Accepted | Rejected -->
Version: <!-- e.g., 1.0.0 -->
## Executive Summary
<!-- 3-4 sentences: What problem does this solve? What's the proposed solution? What are the key tradeoffs? -->
## Problem Statement
<!-- Describe the current state, limitations, and impact. Why are existing solutions insufficient? -->
## Goals & Success Criteria
### Primary Goals
- **Goal 1**: <!-- Specific, measurable objective -->
- **Goal 2**: <!-- Specific, measurable objective -->
- **Goal 3**: <!-- Specific, measurable objective -->
### Success Criteria
1. <!-- Measurable criterion with target metrics -->
2. <!-- Measurable criterion with target metrics -->
3. <!-- Measurable criterion with target metrics -->
## Context & Background
<!-- Why now? What triggered this decision? What constraints exist? Historical context if relevant. -->
## Proposed Solution
### High-Level Overview
<!-- Architecture diagram or ASCII art showing major components and data flow -->
```
┌─────────────┐
│ Client │
└──────┬──────┘
│
├─→ [API Gateway]
│ │
├─→ [Service Layer]
│ ├─ Service A
│ └─ Service B
│
└─→ [Data Layer]
├─ Database
└─ Cache
```
<!-- Brief narrative: How do components work together? What's the overall approach? -->
### Architecture Components
#### <!-- Component Name -->
- **Purpose**: <!-- What this component does -->
- **Technology**: <!-- Stack choice and version -->
- **Key Responsibilities**: <!-- Primary functions -->
- **Interactions**: <!-- How it connects with other components -->
#### <!-- Component Name -->
- **Purpose**: <!-- What this component does -->
- **Technology**: <!-- Stack choice and version -->
- **Key Responsibilities**: <!-- Primary functions -->
- **Interactions**: <!-- How it connects with other components -->
### Design Decisions
#### Decision 1: <!-- Decision Title -->
- **Decision**: <!-- What was chosen -->
- **Rationale**: <!-- Why this choice over alternatives -->
- **Alternatives Considered**: <!-- Briefly list other options and why they weren't chosen -->
- **Impact**: <!-- Key consequences of this decision -->
#### Decision 2: <!-- Decision Title -->
- **Decision**: <!-- What was chosen -->
- **Rationale**: <!-- Why this choice over alternatives -->
- **Alternatives Considered**: <!-- Briefly list other options and why they weren't chosen -->
- **Impact**: <!-- Key consequences of this decision -->
### Technology Stack
**Language & Runtime**
- <!-- Technology, version, and rationale -->
**Data Layer**
- <!-- Primary database/storage, version, and rationale -->
- <!-- Cache layer, version, and rationale -->
**Infrastructure**
- <!-- Hosting/cloud platform and rationale -->
- <!-- Container/orchestration technology if applicable -->
**Key Libraries/Frameworks**
- <!-- Critical dependencies with versions -->
### Data Model & Storage
<!-- Reference data specification or provide high-level overview -->
**Storage Strategy**
- **Primary Database**: <!-- Choice and structure -->
- **Caching**: <!-- Strategy and technology -->
- **Data Retention**: <!-- Archival and cleanup policies -->
<!-- Optionally include simplified schema or entity relationships -->
### API & Integration Points
<!-- Reference API specification or list key endpoints and integrations -->
**External Dependencies**
- Integrates with <!-- Service/API name --> for <!-- purpose -->
- Consumes events from <!-- Service/API name -->
- Publishes events to <!-- Service/API name -->
**Key Endpoints** (or reference API spec)
- <!-- HTTP method and path -->: <!-- Purpose -->
- <!-- HTTP method and path -->: <!-- Purpose -->
## Trade-offs
### Accepting
- <!-- Cost, complexity, or limitation we're accepting -->
- <!-- Technical debt or constraint we're taking on -->
- <!-- Performance or feature tradeoff -->
### Gaining
- <!-- Primary benefit we're achieving -->
- <!-- Problem we're solving -->
- <!-- Capability we're enabling -->
## Implementation
<!-- Reference implementation plan or outline high-level phases -->
**Approach**: <!-- Sequential rollout, phased migration, parallel development, etc. -->
**Phases**:
1. **Phase 1**: <!-- Description, key deliverables -->
2. **Phase 2**: <!-- Description, key deliverables -->
3. **Phase 3**: <!-- Description, key deliverables -->
**Migration Strategy** (if applicable):
- <!-- How existing systems/data will be transitioned -->
See [Plan Specification](#) for detailed implementation roadmap.
## Performance & Scalability
### Performance Targets
- **Latency**: <!-- e.g., < 100ms p95, < 200ms p99 -->
- **Throughput**: <!-- e.g., 1000 requests/second -->
- **Availability**: <!-- e.g., 99.9% uptime -->
### Scalability Strategy
- **Scaling Approach**: <!-- Horizontal/vertical, stateless design, etc. -->
- **Bottlenecks**: <!-- Known limitations and mitigation strategies -->
- **Auto-scaling**: <!-- Triggers, thresholds, and scaling policies -->
### Monitoring & Observability
- **Metrics**: <!-- Key metrics to track -->
- **Alerting**: <!-- Critical alerts and thresholds -->
- **Logging**: <!-- Logging strategy and aggregation -->
## Security
**Authentication**
- <!-- Method: JWT, OAuth, API keys, etc. -->
**Authorization**
- <!-- Access control approach: RBAC, ABAC, etc. -->
**Data Protection**
- **Encryption at Rest**: <!-- Method and key management -->
- **Encryption in Transit**: <!-- TLS/SSL configuration -->
- **PII Handling**: <!-- Sensitive data protection approach -->
**Secrets Management**
- <!-- How secrets, credentials, and keys are managed -->
**Compliance**
- <!-- Relevant standards: GDPR, SOC2, HIPAA, etc. -->
## Dependencies & Assumptions
### Dependencies
- <!-- External service or system dependency and impact if unavailable -->
- <!-- Team or resource dependency -->
- <!-- Third-party library or platform dependency -->
### Assumptions
- <!-- Key assumption that must hold true for this design to work -->
- <!-- Assumption about scale, usage patterns, or constraints -->
- <!-- Assumption about external systems or future capabilities -->
## Open Questions
<!-- Questions that need resolution before or during implementation -->
- [ ] <!-- Question or decision to be made --> - **Status**: <!-- Under investigation, blocked, etc. -->
- [ ] <!-- Question or decision to be made --> - **Status**: <!-- Under investigation, blocked, etc. -->
- [ ] <!-- Deferred decision with rationale for deferral -->
## Approvals
**Technical Review**
- <!-- Name, Role -->
**Architecture Review**
- <!-- Name, Role -->
**Security Review**
- <!-- Name, Role -->
**Approved By**
- <!-- Name, Role -->

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# Flow Schematic: <!-- TODO: Feature Name -->
**Document ID:** `flow-[project]-[feature-id]-[description]`
**Status:** <!-- TODO: Draft | In Review | Approved -->
**Last Updated:** <!-- TODO: YYYY-MM-DD -->
**Owner:** <!-- TODO: Team/Individual -->
**Related Specs:** <!-- TODO: List related spec IDs -->
---
## Overview
<!-- TODO: Brief description of what this flow accomplishes and why it exists -->
**Purpose:** <!-- TODO: 1-2 sentences on the business/technical goal -->
**Trigger:** <!-- TODO: What initiates this flow - user action, system event, scheduled task, etc. -->
**Outcome:** <!-- TODO: Expected end state when flow completes successfully -->
---
## Scope & Context
### In Scope
<!-- TODO: List what's in scope:
- Primary flow path
- Key decision points
- Critical error handling
-->
### Out of Scope
<!-- TODO: List what's out of scope:
- Edge cases handled elsewhere
- Related but separate flows
-->
### Assumptions
<!-- TODO: List assumptions:
- Required preconditions
- System state assumptions
-->
---
## Flow Steps
<!-- TODO: Main flow sequence - focus on the happy path. Document in table format:
| Step | Actor | Action | Decision/Output |
|------|-------|--------|-----------------|
| 1 | [System/User/Service] | [Action description] | [Decision criteria or next step] |
| 2 | [System/User/Service] | [Action description] | [Decision criteria or next step] |
-->
---
## Decision Points
<!-- TODO: Key decisions that affect flow direction
### Decision 1: [Name]
**Condition:** [What triggers this decision]
**Options:**
- **Path A:** [Condition] → [Outcome]
- **Path B:** [Condition] → [Outcome]
-->
---
## Error Handling
<!-- TODO: Critical error scenarios and recovery strategies. Document in table format:
| Error Type | Detection | Recovery Action | Fallback |
|------------|-----------|-----------------|----------|
| [Error category] | [How identified] | [Primary recovery] | [If recovery fails] |
-->
**Rollback Strategy:** <!-- TODO: How to undo partial completion -->
---
## Dependencies
### System Dependencies
<!-- TODO: List required services, data sources, and infrastructure:
- **Services:** [Required services/APIs]
- **Data:** [Required data sources]
- **Infrastructure:** [Required infrastructure components]
-->
### External Dependencies
<!-- TODO: OPTIONAL - Remove if not applicable. List external services and user actions:
- **Third-party APIs:** [External services]
- **User Actions:** [Required user inputs]
-->
### Upstream Flows
<!-- TODO: OPTIONAL - Remove if not applicable. List flows that must complete before this one -->
### Downstream Flows
<!-- TODO: OPTIONAL - Remove if not applicable. List flows triggered by this one -->
---
## Success Criteria
<!-- TODO: How to verify the flow completed correctly -->
### Functional Success
<!-- TODO: List functional criteria:
- [ ] [Key outcome 1 achieved]
- [ ] [Key outcome 2 achieved]
- [ ] [Data consistency verified]
-->
### Technical Success
<!-- TODO: List technical criteria:
- [ ] [No errors logged]
- [ ] [State correctly updated]
- [ ] [Downstream systems notified]
-->
---
## Performance Targets
<!-- TODO: Document performance targets in table format:
| Metric | Target | Measurement Point |
|--------|--------|-------------------|
| End-to-end latency | [e.g., <500ms] | [Start to completion] |
| Individual step time | [e.g., <100ms] | [Critical step] |
| Throughput | [e.g., 1000 req/sec] | [Peak load scenario] |
| Error rate | [e.g., <0.1%] | [Per 1000 executions] |
-->
**Timeout:** <!-- TODO: Maximum flow duration before abort -->
---
## Notes
<!-- TODO: OPTIONAL - Remove if not applicable. Additional context, caveats, or future considerations:
- [Important consideration 1]
- [Important consideration 2]
- [Known limitation or future enhancement]
-->

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### Milestone
# <!-- Title: #[MLS-001] Q4 User Dashboard Launch -->
Priority: <!-- critical | high | medium | low -->
Status: <!-- Draft | Planning | In Progress | At Risk | Completed -->
Owner: <!-- Name and title -->
## Description
<!-- Describe what will be accomplished and why it matters. Focus on outcomes and business value. -->
## Scope
### Deliverables
<!-- List what will be built/modified -->
| Deliverable | Description | Status |
| --- | --- | --- |
| <!-- Name --> | <!-- What it includes --> | <!-- Not Started/In Progress/Completed --> |
### In Scope
<!-- Key outcomes and capabilities when complete -->
- <!-- Outcome statement -->
### Out of Scope
<!-- Clarify exclusions to prevent scope creep -->
- **Exclusion**: <!-- What's not included --> - Deferred to <!-- future milestone/phase -->
## Timeline
### Key Phases
<!-- Define major phases without specific dates -->
| Phase | Description |
| --- | --- |
| <!-- Design Review --> | <!-- Complete design validation --> |
| <!-- Development --> | <!-- Core implementation --> |
| <!-- Testing --> | <!-- QA and validation --> |
| <!-- Launch --> | <!-- Production release --> |
## Success Criteria
<!-- Define 3-5 measurable criteria for success -->
### [suc-001] <!-- Title -->
<!-- Description of what success looks like -->
**Verification**: <!-- How this will be measured -->
### [suc-002] <!-- Title -->
<!-- Description of what success looks like -->
**Verification**: <!-- How this will be measured -->
### [suc-003] <!-- Title -->
<!-- Description of what success looks like -->
**Verification**: <!-- How this will be measured -->
## Dependencies
### Internal Dependencies
<!-- Prerequisites from your team/organization. Omit section if none. -->
- **Dependency**: <!-- What's needed -->
- **Owner**: <!-- Name -->
- **Impact if Delayed**: <!-- What breaks -->
### External Dependencies
<!-- Prerequisites from other teams/vendors. Omit section if none. -->
- **Dependency**: <!-- What's needed -->
- **From**: <!-- Team/organization -->
- **Impact if Delayed**: <!-- What breaks -->
### Blockers
<!-- Current or anticipated blockers. Omit section if none. -->
- **Blocker**: <!-- Issue description -->
- **Probability**: <!-- High/Medium/Low -->
- **Impact**: <!-- Critical/High/Medium/Low -->
- **Mitigation**: <!-- Action plan -->
## Related Specs
### Components
<!-- Components affected by this milestone -->
| Component | Change Type | Description |
| --- | --- | --- |
| [CMP-XXX] <!-- Name --> | <!-- New/Modified/Deprecated --> | <!-- What's changing --> |
### Plans
<!-- Execution plans that implement this milestone -->
- [PLN-XXX] <!-- Plan Name --> - <!-- What this plan accomplishes -->
### Requirements
<!-- Business and technical requirements this milestone addresses -->
- [BRD-XXX] <!-- Business Requirement --> - <!-- How it's addressed -->
- [PRD-XXX] <!-- Technical Requirement --> - <!-- Implementation approach -->

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### Plan
# <!-- Replace with descriptive title and ID, e.g., #[PLN-001] Implement User Authentication -->
Priority: <!-- critical | high | medium | low | nice-to-have -->
Status: <!-- Draft | Planning | In Progress | Completed -->
## Overview
<!-- Describe what this plan accomplishes and why it's needed. What changes, what's the outcome? -->
### Fulfills
<!-- Link to requirements this plan addresses -->
- [BRD-XXX] Business Requirement Name
- [TRQ-XXX] Technical Requirement Name
- [MLS-XXX] Milestone Name
### Scope
**In Scope:**
<!-- What will be delivered -->
**Out of Scope:**
<!-- What's explicitly excluded and why -->
## Tasks
<!-- Break down work into 5-15 actionable tasks -->
| ID | Task | Owner | Effort | Dependencies | Status |
|---|---|---|---|---|---|
| tsk-001 | Task description | Team/Person | S/M/L | None | Pending |
| tsk-002 | Task description | Team/Person | M | tsk-001 | Pending |
### Task Details
<!-- Expand key tasks that need more detail -->
#### [tsk-001] Task Name
**Description:** What needs to be done
**Files to Modify:**
- `path/to/file.ts` - Changes needed
**Acceptance Criteria:**
- Specific verifiable criterion
- Another criterion
## Timeline
<!-- Define execution phases and sequencing without dates -->
| Phase | Tasks | Owner | Dependencies |
|---|---|---|---|
| Phase 1: Setup | tsk-001, tsk-002 | Team A | None |
| Phase 2: Implementation | tsk-003, tsk-004 | Team B | Phase 1 |
| Phase 3: Testing | tsk-005 | QA Team | Phase 2 |
**Sequencing Notes:**
<!-- Any important notes about task ordering or parallel execution -->
## Success Metrics
<!-- How will we measure success? -->
- Metric 1: Target value
- Metric 2: Target value
## Dependencies
### Prerequisites
<!-- What must be complete before starting -->
- **Item** - Status: Pending/Complete - Impact if delayed
### Related Plans
<!-- Coordinate with these plans -->
- [PLN-XXX] Plan Name - Relationship
## Risks & Assumptions
**Key Risks:**
- **Risk:** Description - **Mitigation:** Strategy
**Assumptions:**
- What we're assuming - If wrong, what happens

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### Technical Requirement
# <!-- Title with ID. Example: #[TRQ-001] Implement Real-Time Notification System -->
**Priority:** <!-- critical | high | medium | low | nice-to-have -->
## Description
<!-- What technical problem are we solving? Describe the technical challenge and why this approach matters. -->
## Business Requirements Addressed
<!-- List business requirements this technical solution fulfills:
- [BRD-XXX] Requirement Name - How this implementation addresses it
- [BRD-YYY] Another Requirement - Connection to technical solution
-->
## Technical Requirements
<!-- Specific technical specifications that must be implemented:
1. **[TR-001] Requirement Title**
- Clear, measurable technical requirement
- Include specific details (protocols, formats, standards)
2. **[TR-002] Another Requirement**
- Focus on what needs to be built
- Be specific about constraints and expectations
-->
### Implementation Approach
<!-- High-level technical strategy:
- Overall architecture pattern
- Key technologies and frameworks
- Integration points with existing systems
- Critical design decisions
-->
### Key Design Decisions
<!-- Document important technical choices:
- **Decision:** What was decided
- **Rationale:** Why this approach was chosen
- **Tradeoffs:** Alternatives considered and why they were rejected
-->
## Technical Acceptance Criteria
<!-- REQUIRED: Measurable criteria to verify implementation. Each criterion should be testable.
### [TAC-001] Criterion Title
**Description:** What must be true for this to be satisfied
**Verification:** How this will be tested (unit tests, integration tests, manual verification)
### [TAC-002] Another Criterion
**Description:** Clear, specific requirement
**Verification:** Testing approach
-->
## Dependencies
### Technical Dependencies
<!-- Required libraries, services, and systems:
- **Package/Service Name** (version) - Purpose | Risk: Low/Medium/High
- **API/Service** - Integration purpose | Risk: Low/Medium/High
-->
### Specification Dependencies
<!-- Other specs that must be completed first:
- [SPEC-XXX] Specification Name - Why this is a dependency
-->
### Constraints
<!-- Technical limitations and requirements:
- **Performance:** Response time, throughput requirements
- **Scalability:** Load handling expectations
- **Security:** Authentication, authorization, data protection
- **Compatibility:** Browser, platform, version requirements
-->
## Implementation Notes
<!-- Important technical considerations:
### Key Considerations
- **[Consideration Name]:** What to watch out for
- **Action:** How to address it
### Migration Strategy
<!-- If applicable, approach for transitioning from existing implementation -->
### Error Handling
<!-- Expected error scenarios and handling approach -->
### Testing Strategy
<!-- Unit, integration, and end-to-end testing approach -->