ai-agent-book 精选快照（<2MB 代码与文档，来自 github.com/bojieli/ai-agent-book）

chapter9/hermes-self-evolution/review_task_3.md

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+# Third independent review: persistence boundary
+
+The second correction still overclaims multimodal support. Inspection of the
+actual persistence boundary found:
+
+- `hermes_state.py` types `api_content` as `Optional[str]` and writes non-string
+  values as `None` (around lines 5632–5750 and 6078–6106);
+- `run_agent.py` discards non-string `_row_api_content` during flush (around
+  lines 2104–2110);
+- `agent/turn_context.py` exposes string-only sidecar helpers.
+
+Thus a list sidecar is replayed within the in-memory loop but disappears after
+persistence/resume, invalidating the claimed durable byte stability. Make the
+smallest compatible correction: fail closed for non-string content and do not
+attach the model status on unsupported multimodal/list messages. Do not widen
+the database schema or persistence contract in this experiment.
+
+Update tests to assert list, empty, mapping, and numeric values are rejected by
+the same production helper, and that string sidecars remain stable across
+three requests. Remove any multimodal-support claim from code comments and the
+report. Run the focused tests, the existing replay/cache regression set,
+compilation, and `git diff --check`; update the report with exact results.
+
+Do not edit the book, commit, push, or claim downstream task improvement.