Add agent graph store interface#19229
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rasmusrygaard merged 4 commits intomainfrom Apr 29, 2026
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Apr 24, 2026
| .upsert_thread_spawn_edge(parent_thread_id, child_thread_id, to_state_status(status)) | ||
| .await | ||
| .map_err(internal_error) | ||
| } |
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Implementation should match what's already in the repo. Will point those callers at this code eventually
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Summary
Persisted subagent parent/child topology currently leaks through
StateRuntime's SQLite-specific thread-spawn helpers. This PR introduces a narrowAgentGraphStoreboundary so follow-up work can route graph operations through a local or remote store without coupling orchestration code directly to the state DB graph API.Changes
codex-agent-graph-storecrate.AgentGraphStoretrait for the v1 graph surface: upsert edge, set edge status, list direct children, and list descendants.ThreadSpawnEdgeStatus,AgentGraphStoreError, andAgentGraphStoreResult.LocalAgentGraphStoreon top of an existingcodex_state::StateRuntime, preserving today's SQLite-backedthread_spawn_edgesbehavior.This PR only adds the local contract and implementation; call-site migration and the remote gRPC store are left to the follow-up PRs in the stack.
Testing
cargo test -p codex-agent-graph-storeThe new unit tests cover local parity with the existing
StateRuntimegraph methods,Open/Closedfiltering, status updates, and stable breadth-first descendant ordering.