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* fix(utils): return empty text for content-less messages message_content_to_text fell through to str(content), so a message whose content is None yielded the truthy literal "None". Two call sites already work around it with a local `or ""` and name the helper in the comment; the subagent executor's `text if text else "No response generated"` fallback and the archive's `if not text: continue` skip cannot work around it, so a content-less terminal turn was reported as an answer of "None" and a content-less LLM error fallback surfaced "None" instead of its error_detail. * test(utils): cover non-None content compatibility and document fallbacks * test(utils): cover contentless task history and refresh guard comments --------- Co-authored-by: Lengshuang <90967079+Lesereingrape@users.noreply.github.com> Co-authored-by: JasonH <4430962+yang0228@users.noreply.github.com> Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
21 lines
1.6 KiB
Markdown
21 lines
1.6 KiB
Markdown
### Message Text Extraction
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`message_content_to_text` takes raw message content and treats `None` as empty
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text so downstream empty-result, error-detail, and archive-skip fallbacks work.
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Keep its other conversions unchanged, including newline-separated list blocks
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and literal strings such as `"None"`. Do not replace it with `message_to_text`,
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which takes a whole message and uses different list/mapping semantics.
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Regression coverage lives in `tests/test_utils_messages.py`,
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`tests/test_subagent_executor.py`, and `tests/test_task_continuity.py`.
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### Agent / Tool Assembly Off-Load
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Tool and agent assembly re-enters `get_available_tools()` and may block on MCP discovery, so the four async assembly entry points — `run_agent`'s `agent_factory` call, `task_tool`, durable batch `_execute_item`, and `abuild_checkpoint_state_accessor` — dispatch through `deerflow.utils.assembly_io.run_assembly`, a dedicated ContextVar-preserving bounded executor (`DEER_FLOW_ASSEMBLY_WORKERS`, default 8) rather than the loop's default executor; a hung MCP server therefore parks an assembly worker instead of queueing unrelated default-executor work, and the pool logs a warning when pending assemblies exceed the worker count. `tests/blocking_io/test_tool_assembly_offloop.py` pins all four offloads plus the ContextVar propagation.
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### Uploaded Document Summaries
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`file_outline.py` reads outlines and fallback previews as `utf-8-sig` so an
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optional leading UTF-8 BOM cannot hide a first-line heading or code fence, or
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occupy a preview line. Preserve physical line numbers, embedded U+FEFF
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characters, and the original file bytes.
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