Implementation Plan: Project Launch Script

Branch: 003-project-launch-script | Date: 2025-12-20 | Spec: specs/003-project-launch-script/spec.md Input: Feature specification from /specs/003-project-launch-script/spec.md

Summary

Create a root-level bash script (run.sh) to automate the setup and concurrent execution of the backend (FastAPI) and frontend (Svelte/Vite) development servers. The script will handle dependency checks, installation, and graceful termination of both processes.

Technical Context

Language/Version: Python 3.9+, Node.js 18+
Primary Dependencies: uvicorn, npm, bash
Storage: N/A
Testing: Manual verification of service availability; pytest for backend logic if any.
Target Platform: Linux
Project Type: Web application (frontend + backend)
Performance Goals: Services accessible within 30 seconds.
Constraints: Must handle SIGINT (Ctrl+C) to kill all child processes.
Scale/Scope: Developer utility script.

Constitution Check

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

Gate	Status	Rationale
Python 3.9+	PASS	Backend uses Python 3.9+
Node.js 18+	PASS	Frontend uses Node.js 18+
Project Structure	PASS	Follows `backend/`, `frontend/` structure
Executable from root	PASS	Planned as `./run.sh`

Post-Design Re-evaluation: Design artifacts (research, data-model, contracts) confirm compliance with all project principles. No violations found.

Project Structure

Documentation (this feature)

specs/003-project-launch-script/
├── plan.md              # This file
├── research.md          # Phase 0 output
├── data-model.md        # Phase 1 output
├── quickstart.md        # Phase 1 output
├── contracts/           # Phase 1 output
└── tasks.md             # Phase 2 output

Source Code (repository root)

run.sh                   # New launch script

backend/
├── src/
│   └── app.py
└── requirements.txt

frontend/
├── src/
└── package.json

Structure Decision: Option 2: Web application. The script will reside in the root to orchestrate both directories.

Complexity Tracking

Fill ONLY if Constitution Check has violations that must be justified

Violation	Why Needed	Simpler Alternative Rejected Because
None	-	-

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