project initialization

specs/001-1-target-sectors/plan.md

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+
+# Implementation Plan: Multi-Tenant SaaS Platform for Malaysian SMEs
+
+**Branch**: `001-1-target-sectors` | **Date**: 2025-10-04 | **Spec**: /specs/001-1-target-sectors/spec.md
+**Input**: Feature specification from `/specs/001-1-target-sectors/spec.md`
+
+## Execution Flow (/plan command scope)
+```
+1. Load feature spec from Input path
+   → If not found: ERROR "No feature spec at {path}"
+2. Fill Technical Context (scan for NEEDS CLARIFICATION)
+   → Detect Project Type from file system structure or context (web=frontend+backend, mobile=app+api)
+   → Set Structure Decision based on project type
+3. Fill the Constitution Check section based on the content of the constitution document.
+4. Evaluate Constitution Check section below
+   → If violations exist: Document in Complexity Tracking
+   → If no justification possible: ERROR "Simplify approach first"
+   → Update Progress Tracking: Initial Constitution Check
+5. Execute Phase 0 → research.md
+   → If NEEDS CLARIFICATION remain: ERROR "Resolve unknowns"
+6. Execute Phase 1 → contracts, data-model.md, quickstart.md, agent-specific template file (e.g., `CLAUDE.md` for Claude Code, `.github/copilot-instructions.md` for GitHub Copilot, `GEMINI.md` for Gemini CLI, `QWEN.md` for Qwen Code, or `AGENTS.md` for all other agents).
+7. Re-evaluate Constitution Check section
+   → If new violations: Refactor design, return to Phase 1
+   → Update Progress Tracking: Post-Design Constitution Check
+8. Plan Phase 2 → Describe task generation approach (DO NOT create tasks.md)
+9. STOP - Ready for /tasks command
+```
+
+**IMPORTANT**: The /plan command STOPS at step 7. Phases 2-4 are executed by other commands:
+- Phase 2: /tasks command creates tasks.md
+- Phase 3-4: Implementation execution (manual or via tools)
+
+## Summary
+Multi-tenant SaaS platform targeting Malaysian SMEs with industry-specific modules (Retail, Healthcare, Education, Logistics, Beauty). Features include modular architecture, dual pricing models (subscription and perpetual license), multi-tenant data isolation, and comprehensive business management tools for each sector.
+
+## Technical Context
+**Language/Version**: Python 3.11+ with Django/FastAPI for backend, React/Next.js for frontend
+**Primary Dependencies**: Django/FastAPI, PostgreSQL, React/Next.js, Stripe API, Redis, Docker
+**Storage**: PostgreSQL with row-level security for multi-tenant isolation
+**Testing**: pytest for backend, Jest for frontend, integration tests for APIs
+**Target Platform**: Web-based SaaS platform (Linux servers)
+**Project Type**: Web application (backend + frontend)
+**Performance Goals**: 1000 concurrent users, <200ms response time for 95% of requests
+**Constraints**: Multi-tenant data isolation, Malaysian payment method integration, healthcare compliance standards
+**Scale/Scope**: 100 tenants with 10 users each (expandable), 5 industry modules
+
+## Constitution Check
+*GATE: Must pass before Phase 0 research. Re-check after Phase 1 design.*
+
+**Constitution Status**: Template placeholders detected - actual constitution needs to be defined
+- Core principles not yet defined
+- Testing approach needs constitutional alignment
+- Governance structure requires specification
+
+**Recommendation**: Define constitution before proceeding with implementation to ensure alignment with project values and standards.
+
+## Project Structure
+
+### Documentation (this feature)
+```
+specs/001-1-target-sectors/
+├── plan.md              # This file (/plan command output)
+├── research.md          # Phase 0 output (/plan command)
+├── data-model.md        # Phase 1 output (/plan command)
+├── quickstart.md        # Phase 1 output (/plan command)
+├── contracts/           # Phase 1 output (/plan command)
+└── tasks.md             # Phase 2 output (/tasks command - NOT created by /plan)
+```
+
+### Source Code (repository root)
+```
+backend/
+├── src/
+│   ├── core/                 # Core multi-tenant infrastructure
+│   │   ├── models/          # Base tenant, user, subscription models
+│   │   ├── auth/            # Authentication and authorization
+│   │   ├── billing/         # Subscription and payment handling
+│   │   └── admin/           # Back office administration
+│   ├── modules/             # Industry-specific modules
+│   │   ├── retail/          # Retail & Food Stalls module
+│   │   ├── healthcare/      # Healthcare module
+│   │   ├── education/      # Education module
+│   │   ├── logistics/       # Logistics module
+│   │   └── beauty/          # Beauty & Personal Care module
+│   └── api/                # REST API endpoints
+├── tests/
+│   ├── contract/            # API contract tests
+│   ├── integration/         # Module integration tests
+│   └── unit/               # Unit tests
+└── migrations/             # Database migrations
+
+frontend/
+├── src/
+│   ├── components/         # Reusable UI components
+│   ├── pages/              # Application pages
+│   ├── modules/            # Module-specific components
+│   ├── hooks/              # Custom React hooks
+│   ├── services/           # API service layer
+│   └── utils/              # Utility functions
+├── tests/                  # Frontend tests
+└── public/                 # Static assets
+
+shared/
+├── types/                  # TypeScript type definitions
+└── contracts/             # Shared API contracts
+
+docker/                     # Docker configuration
+├── backend/
+├── frontend/
+└── postgres/
+
+docs/                       # Project documentation
+└── api/                    # API documentation
+```
+
+**Structure Decision**: Web application with separate backend/frontend for scalability and independent deployment. Modular backend structure allows for plug-and-play industry modules. Shared types ensure API consistency.
+
+## Progress Tracking
+- [x] Phase 0: Research completed (research.md generated)
+- [x] Phase 1: Design completed (data-model.md, contracts/, quickstart.md generated)
+- [x] Phase 2: Task planning (122 tasks created in tasks.md)
+- [ ] Phase 3: Task execution (ready to begin)
+- [ ] Phase 4: Implementation (pending)
+- [ ] Phase 5: Validation (pending)
+
+## Phase 0: Outline & Research
+1. **Extract unknowns from Technical Context** above:
+   - For each NEEDS CLARIFICATION → research task
+   - For each dependency → best practices task
+   - For each integration → patterns task
+
+2. **Generate and dispatch research agents**:
+   ```
+   For each unknown in Technical Context:
+     Task: "Research {unknown} for {feature context}"
+   For each technology choice:
+     Task: "Find best practices for {tech} in {domain}"
+   ```
+
+3. **Consolidate findings** in `research.md` using format:
+   - Decision: [what was chosen]
+   - Rationale: [why chosen]
+   - Alternatives considered: [what else evaluated]
+
+**Output**: research.md with all NEEDS CLARIFICATION resolved
+
+## Phase 1: Design & Contracts
+*Prerequisites: research.md complete*
+
+1. **Extract entities from feature spec** → `data-model.md`:
+   - Entity name, fields, relationships
+   - Validation rules from requirements
+   - State transitions if applicable
+
+2. **Generate API contracts** from functional requirements:
+   - For each user action → endpoint
+   - Use standard REST/GraphQL patterns
+   - Output OpenAPI/GraphQL schema to `/contracts/`
+
+3. **Generate contract tests** from contracts:
+   - One test file per endpoint
+   - Assert request/response schemas
+   - Tests must fail (no implementation yet)
+
+4. **Extract test scenarios** from user stories:
+   - Each story → integration test scenario
+   - Quickstart test = story validation steps
+
+5. **Update agent file incrementally** (O(1) operation):
+   - Run `.specify/scripts/bash/update-agent-context.sh claude`
+     **IMPORTANT**: Execute it exactly as specified above. Do not add or remove any arguments.
+   - If exists: Add only NEW tech from current plan
+   - Preserve manual additions between markers
+   - Update recent changes (keep last 3)
+   - Keep under 150 lines for token efficiency
+   - Output to repository root
+
+**Output**: data-model.md, /contracts/*, failing tests, quickstart.md, agent-specific file
+
+## Phase 2: Task Planning Approach
+*This section describes what the /tasks command will do - DO NOT execute during /plan*
+
+**Task Generation Strategy**:
+- Load `.specify/templates/tasks-template.md` as base
+- Generate tasks from Phase 1 design docs (contracts, data model, quickstart)
+- Each contract → contract test task [P]
+- Each entity → model creation task [P] 
+- Each user story → integration test task
+- Implementation tasks to make tests pass
+
+**Ordering Strategy**:
+- TDD order: Tests before implementation 
+- Dependency order: Models before services before UI
+- Mark [P] for parallel execution (independent files)
+
+**Estimated Output**: 25-30 numbered, ordered tasks in tasks.md
+
+**IMPORTANT**: This phase is executed by the /tasks command, NOT by /plan
+
+## Phase 3+: Future Implementation
+*These phases are beyond the scope of the /plan command*
+
+**Phase 3**: Task execution (/tasks command creates tasks.md)  
+**Phase 4**: Implementation (execute tasks.md following constitutional principles)  
+**Phase 5**: Validation (run tests, execute quickstart.md, performance validation)
+
+## Complexity Tracking
+*Fill ONLY if Constitution Check has violations that must be justified*
+
+| Violation | Why Needed | Simpler Alternative Rejected Because |
+|-----------|------------|-------------------------------------|
+| [e.g., 4th project] | [current need] | [why 3 projects insufficient] |
+| [e.g., Repository pattern] | [specific problem] | [why direct DB access insufficient] |
+
+
+## Progress Tracking
+*This checklist is updated during execution flow*
+
+**Phase Status**:
+- [ ] Phase 0: Research complete (/plan command)
+- [ ] Phase 1: Design complete (/plan command)
+- [ ] Phase 2: Task planning complete (/plan command - describe approach only)
+- [ ] Phase 3: Tasks generated (/tasks command)
+- [ ] Phase 4: Implementation complete
+- [ ] Phase 5: Validation passed
+
+**Gate Status**:
+- [ ] Initial Constitution Check: PASS
+- [ ] Post-Design Constitution Check: PASS
+- [ ] All NEEDS CLARIFICATION resolved
+- [ ] Complexity deviations documented
+
+---
+*Based on Constitution v2.1.1 - See `/memory/constitution.md`*