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* fix(auto-memory): serialize session transcript writes per session _save_session_messages ran its read-merge-write on the per-session JSONL transcript without any lock. Concurrent HTTP requests saving the same session could interleave: two writers both appending against a stale snapshot write overlapping history twice, and an append racing a full rewrite can be overwritten by the rewriter's stale merge, losing messages. Hold get_path_lock(path) across the whole read, merge, and write, consistent with the existing session image handling in the same file. Merge, ordering, and can_append logic are unchanged. Add deterministic regression tests that gate one writer's read between snapshot capture and write: concurrent appends must merge disjoint messages in created_at order, and an appended message must survive a concurrent full rewrite. Both tests fail without the lock. Closes #622 * test(auto-memory): make session-lock regression tests deterministic Replace fixed sleeps with explicit synchronization: a shared operation log records lock/read/write progress per writer, and writer A holds its post-read pause until writer B is queued on the transcript lock. The tests now assert the serialization order from the log (B reads only after A's write completed) in addition to transcript content, so they no longer depend on IO timing. Also fix pylint findings from CI: use from-import for the auto_memory module and drop unused tmp_path parameters. |
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| .. | ||
| common | ||
| evolve | ||
| file_io | ||
| index | ||
| transfer | ||
| __init__.py | ||
| base_step.py | ||