# Workspace Runtime Package `molecule-ai-workspace-runtime` is the shared Python runtime consumed by workspace template images and by external MCP integrations. ## Source Of Truth The source of truth is the standalone Gitea repo: ```text https://git.moleculesai.app/molecule-ai/molecule-ai-workspace-runtime ``` Do not add runtime source back under `molecule-core/workspace/`. The core repo owns the platform server, canvas, provisioning, and tests around the installed runtime package. ## Package Registry The runtime package is published to the Molecule AI Gitea package registry: ```text https://git.moleculesai.app/api/packages/molecule-ai/pypi/simple/ ``` PyPI is intentionally not part of the critical path. Template Dockerfiles, external-runtime snippets, and CI install checks should use the Gitea registry. ## Release Flow 1. Land a reviewed PR in `molecule-ai-workspace-runtime`. 2. Bump `version =` in that repo's `pyproject.toml`. 3. Tag `runtime-vX.Y.Z` on the runtime repo. 4. The runtime repo's `publish-runtime` workflow builds the wheel and sdist, publishes to the Gitea registry, verifies install from that registry, then cascades `.runtime-version` pins to workspace template repos. ## Core Repo Contract `molecule-core` must not ship editable runtime code. Its responsibilities are: - Test platform behavior against the installed runtime contract. - Keep MCP/registry/TenantGuard behavior compatible with the runtime package. - Fail CI if `workspace/` or legacy build-from-workspace scripts are restored.