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kami d26f20c316 docs(dox): build out the DOX AGENTS.md hierarchy
Root Child DOX Index assembled, plus a per-module AGENTS.md across the tree
(core/*, infrastructure/*, apps/*, testing/*, and docs/examples/frontend/etc),
each following the DOX section shape: Purpose, Ownership, Local Contracts,
Work Guidance, Verification, Child DOX Index.
2026-06-28 20:43:27 +04:00

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core/transitions — AGENTS.md

Purpose

FSM/workflow graph execution: defines the WorkflowGraph (stages and transition edges), resolves which transition to take at each step, executes stages, and detects cycles.

Ownership

CORREX kernel team.

Local Contracts

  • WorkflowGraph — the workflow DAG: stages (StageConfig) connected by TransitionEdges.
  • TransitionResolver / DefaultTransitionResolver — evaluates TransitionConditions against EvaluationContext to pick the next stage.
  • TransitionCondition — sealed interface for conditions. Built-in: AlwaysTrue, VariableEquals, ArtifactFieldEquals, ArtifactConditions, and composites (Composites).
  • StageExecutor — executes a single stage given a StageExecutionRequest; returns StageExecutionResult.
  • StageExecutionEventMapper / DefaultStageExecutionEventMapper — maps stage execution results to domain events.
  • TransitionDecision / TransitionOrdering — decision and ordering types.
  • EvaluationContext — runtime context for condition evaluation.
  • PromptResolver — resolves prompt templates for a stage from config.
  • CycleExtractor / CycleDfs / DetectedCycle / CycleCanonicalizer — detect and canonicalize cycles in the workflow graph (used by core:validation).
  • DeterministicAdjacencyBuilder / GraphOrdering — deterministic graph traversal for consistent ordering.
  • VisitState — DFS traversal state.

Work Guidance

  • DefaultTransitionResolver is stateless per call — it reads EvaluationContext, not persisted state.
  • Stage events are recorded by DefaultStageExecutionEventMapper; the mapper must emit events for every outcome (success, failure, skip).
  • WorkflowGraph is built from config/TOML at session start; it is immutable during a session.
  • Cycle detection (CycleExtractor) runs during graph validation (core:validation), not at runtime.

Verification

./gradlew :core:transitions:test --rerun-tasks

Tests in testing/transitions/ (DefaultTransitionResolverTest, TransitionFuzzTest, TransitionEventSerializationTest) and testing/replay/ (TransitionReplayIntegrationTest).

Child DOX Index

No child AGENTS.md (leaf module).