# SatSim docs index

Primary design and task documents:

- `ARCHITECTURE.md`
- `TASKS_GEO_ENGINE.md`
- `TASKS_IMNET.md`
- `TASKS_ORCHESTRATOR.md`
- `TASKS_TESTSUITE_GEOENGINE.md`

Locked design decisions (2026-02-18):

- Control-plane tick authority is `StreamLinkDeltas` (streaming-driven orchestration).
- Event stream alignment is being standardized with request `dt`/`selector` and event `tick_index`.
- Orchestrator error handling includes `NOT_FOUND`, `INVALID_ARGUMENT`, `FAILED_PRECONDITION`, and `RESOURCE_EXHAUSTED`.
- Scenario translation to Geo/RF `ScenarioSpec` is fail-fast.
- Python workflows are `uv`-managed; OMNeT++/INET workflows are `opp_env`-managed.