Concepts

Themis has one public mental model now: benchmark authoring on the write side, projection-backed analysis on the read side.

Core Split

Layer	Main types
Authoring	ProjectSpec, BenchmarkSpec, SliceSpec, PromptVariantSpec, ParseSpec, ScoreSpec
Runtime extension	DatasetProvider, InferenceEngine, Extractor, Metric, JudgeService, PipelineHook
Read side	BenchmarkResult, RecordTimelineView, themis-quickcheck

Start Here

• Architecture for the end-to-end flow
• Specs and Records for the public object model
• Plugins and Hooks for extension boundaries
• Storage and Resume for persistence and reuse
• Statistical Comparisons for aggregation semantics