Implementation Plan: [FEATURE]

Branch: [###-feature-name] | Date: [DATE] | Spec: [link] Input: Feature specification from /specs/[###-feature-name]/spec.md

Note: This template is filled in by the /speckit.plan command. See .specify/templates/plan-template.md for the execution workflow.

Summary

[Extract from feature spec: primary requirement + technical approach from research]

Technical Context

Language/Version: Python 3.13+ (backend), JavaScript/TypeScript (frontend Svelte 5)
Primary Dependencies: FastAPI, SQLAlchemy, APScheduler (backend); SvelteKit, Vite, Tailwind CSS (frontend)
Storage: PostgreSQL 16
Testing: pytest (backend), vitest + @testing-library/svelte (frontend)
Target Platform: Linux server (Docker), modern browsers
Project Type: web application (FastAPI REST + WebSocket backend, SvelteKit SPA frontend)
Performance Goals: [domain-specific, e.g., <200ms p95 API latency, 60fps UI]
Constraints: [domain-specific, e.g., <100MB memory per container, RBAC enforcement, offline-capable Docker bundle]
Scale/Scope: [domain-specific, e.g., 50 concurrent users, 1000 dashboards, 10 plugins]

Constitution Check

GATE: Must pass before Phase 0 research. Re-check after Phase 1 design.

[Evaluate against constitution.md and semantics.md. Explicitly confirm semantic protocol compliance, complexity-driven contract coverage, UX-state compatibility (Svelte 5 runes), async boundaries (FastAPI), API-wrapper rules, RBAC/security constraints (local auth + ADFS SSO), plugin lifecycle rules, and any required belief-state/logging constraints for Complexity 4/5 Python modules.]

Project Structure

Documentation (this feature)

specs/[###-feature]/
├── plan.md              # This file (/speckit.plan command output)
├── research.md          # Phase 0 output (/speckit.plan command)
├── data-model.md        # Phase 1 output (/speckit.plan command)
├── quickstart.md        # Phase 1 output (/speckit.plan command)
├── contracts/           # Phase 1 output (/speckit.plan command)
└── tasks.md             # Phase 2 output (/speckit.tasks command - NOT created by /speckit.plan)

Source Code (repository root)

# Web application (default for this repository)
backend/
├── src/
│   ├── api/               # FastAPI routes
│   ├── core/              # Core services (task_manager, auth, migration, plugins)
│   ├── models/            # SQLAlchemy ORM models
│   ├── services/          # Business logic
│   └── schemas/           # Pydantic schemas
└── tests/                 # pytest tests

frontend/
├── src/
│   ├── routes/            # SvelteKit pages
│   ├── lib/
│   │   ├── components/    # Reusable Svelte 5 components
│   │   ├── stores/        # Svelte rune stores ($state, $derived)
│   │   └── api/           # API client modules
│   └── i18n/              # Internationalization
└── tests/                 # vitest tests

docker/                     # Docker configurations

Structure Decision: This is a web application with separate backend/ (Python/FastAPI) and frontend/ (SvelteKit) directories. Docker Compose orchestrates both services plus PostgreSQL.

Semantic Contract Guidance

Use this section to drive Phase 1 artifacts, especially contracts/modules.md.

Classify each planned module/component with @COMPLEXITY: 1..5.
Use comment-anchor syntax appropriate for each context:
- Python: # [DEF:id:Type]
- Svelte markup: 
- Svelte script: // [DEF:id:Type]
Match contract density to complexity:
- Complexity 1: anchors only (DTOs, simple constants)
- Complexity 2: @PURPOSE (utility functions, pure helpers)
- Complexity 3: @PURPOSE, @RELATION; Svelte components also @UX_STATE
- Complexity 4: @PURPOSE, @RELATION, @PRE, @POST, @SIDE_EFFECT; Python also belief_scope/reason/reflect markers; Svelte also @UX_FEEDBACK, @UX_RECOVERY, @UX_REACTIVITY
- Complexity 5: level 4 + @DATA_CONTRACT, @INVARIANT + @RATIONALE/@REJECTED decision memory
Write relations only in canonical form: @RELATION PREDICATE -> TARGET_ID
If any relation target, DTO, or contract dependency is unknown, emit [NEED_CONTEXT: target] instead of inventing placeholders.

Complexity Tracking

Fill ONLY if Constitution Check has violations that must be justified

Violation	Why Needed	Simpler Alternative Rejected Because
[e.g., 4th plugin]	[current need]	[why 3 plugins insufficient]
[e.g., Service layer pattern]	[specific problem]	[why direct ORM access insufficient]

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