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fix(anthropic): merge consecutive assistant messages with mixed content types

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When two consecutive assistant messages had mixed content types (one
string, one list), the merge logic just replaced the earlier message
entirely with the later one (fixed[-1] = m), silently dropping the
earlier message's content.

Apply the same normalization pattern used in the tool_use merge path
(lines 952-956): convert both to list format before concatenating.
This preserves all content from both messages.
This commit is contained in:
teknium1 2026-03-17 03:48:55 -07:00
parent 56e0c90445
commit 8b411b234d
1 changed files with 6 additions and 2 deletions
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8
agent/anthropic_adapter.py
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@ -963,8 +963,12 @@ def convert_messages_to_anthropic(
elif isinstance(prev_blocks, str) and isinstance(curr_blocks, str):
fixed[-1]["content"] = prev_blocks + "\n" + curr_blocks
else:
# Keep the later message
fixed[-1] = m
# Mixed types — normalize both to list and merge
if isinstance(prev_blocks, str):
prev_blocks = [{"type": "text", "text": prev_blocks}]
if isinstance(curr_blocks, str):
curr_blocks = [{"type": "text", "text": curr_blocks}]
fixed[-1]["content"] = prev_blocks + curr_blocks
else:
fixed.append(m)
result = fixed