# archive/2026-05-19-tool-instances
dir: archive/2026-05-19-tool-instances

index: archive/2026-05-19-tool-instances/.pi-map.index.md

## role
Design and planning documents for a Docker-based ephemeral development environment system that provisions per-repository tool instances with lifecycle management.
## files
- design.md | Design document specifying a Docker-based tool instance system for launching and managing development environments per repository with lifecycle management and frontend integration. | dep: Docker, Docker Compose, SQLAlchemy/Base, React/useAtom, AppShell, GitRepository, ToolType, Project, User
- proposal.md | Proposes a system for managing Docker-based development tool instances with persistent sessions linked to repositories | dep: Docker Compose, Docker API, GitRepository, ToolType, database
- tasks.md | Project task tracking document for implementing Docker-based tool instance management with backend API, frontend UI, and lifecycle operations | dep: FastAPI, SQLAlchemy, Alembic, Docker, React/TypeScript, Jotai, docker-compose
## arch
Specification-driven architecture using Docker containers for isolated tool instances, REST API backend for lifecycle operations (create/start/stop/delete), WebSocket or polling for frontend status updates, and repository-scoped persistent sessions with state management.
## tags
docker, design, tool, document, instance, system, managing, development
## symbols
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## workflows
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## dirty
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