Mason Daugherty 8bc96308d0 fix(core): accept sequence tool error content (#38005) ...

`handle_tool_error` callables can now return structured message content
as any valid sequence, not just a mutable `list`. Valid structured
sequences are normalized to the `ToolMessage` content shape at the tool
output boundary, while invalid content still falls back to
stringification.

## Changes
- Widened `ToolExceptionHandlerOutput` from `list[str | dict[str, Any]]`
to `Sequence[MessageContentBlock]` so handlers returning `list[dict[str,
Any]]` or tuple content blocks type-check cleanly.
- Added `_normalize_message_content` to validate structured message
content and convert valid non-string sequences to the `list` shape
expected by `ToolMessage`.
- Preserved existing stringification behavior for invalid structured
content blocks instead of treating failed normalization as `None`.
- Removed the now-unused `_is_message_content_type` helper; output
formatting validates content directly through
`_normalize_message_content`.

2026-06-09 22:35:33 -04:00

..

benchmarks

chore(deps): bump mypy to v1.19 and ruff to v1.14 (#34521)

2025-12-29 18:07:55 -06:00

integration_tests

core: Add ruff rules for PIE (#26939)

2024-09-27 12:08:35 -04:00

unit_tests

fix(core): accept sequence tool error content (#38005)

2026-06-09 22:35:33 -04:00

__init__.py

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