# 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/commands/plan.md` for the execution workflow.

## Summary

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

## Technical Context

**Language/Version**: Python 3.9+ (Backend), Node.js 18+ (Frontend)
**Primary Dependencies**: FastAPI, SvelteKit, Tailwind CSS, Pydantic, Superset API
**Storage**: N/A (Superset API integration - read-only for metadata)
**Testing**: pytest (Backend), vitest (Frontend - inferred)
**Target Platform**: Linux server / Containerized
**Project Type**: web application (Backend + Frontend)
**Performance Goals**: Client-side filtering < 200ms for 100+ items
**Constraints**: Must handle large lists via pagination (Client-side). Spec says "Client-side (Fetch all, filter locally)" and "Pagination (e.g., 20 per page)". *RESOLVED: Fetch all, paginate locally.*
**Scale/Scope**: ~100s of dashboards per environment.

## Constitution Check

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

- [x] **Causal Validity**: Contracts (API/Data Model) defined before implementation.
- [x] **Immutability**: Module headers (`[DEF]`) preserved/added.
- [x] **Semantic Format**: All new code uses `[DEF]` anchors and metadata.
- [x] **Fractal Complexity**: New components (Grid) kept modular; `SupersetClient` extensions are small methods.

**Status**: PASSED

## Project Structure

### Documentation (this feature)

```text
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)

```text
backend/
├── src/
│   ├── api/
│   │   └── routes/
│   │       └── environments.py  # Update to support dashboard fetching
│   ├── core/
│   │   └── superset_client.py   # Update to fetch extended dashboard metadata
│   └── models/
│       └── dashboard.py         # New model for Dashboard metadata
└── tests/
    └── test_superset_client.py

frontend/
├── src/
│   ├── components/
│   │   ├── DashboardGrid.svelte # New component
│   │   └── Pagination.svelte    # New component (if not exists)
│   ├── routes/
│   │   └── migration/
│   │       └── +page.svelte     # Update to use DashboardGrid
│   └── types/
│       └── dashboard.ts         # New type definitions
```

**Structure Decision**: Standard Web Application structure. Backend updates to `SupersetClient` and API routes to serve dashboard metadata. Frontend updates to include a new `DashboardGrid` component and integrate it into the migration flow.

## 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] |