fix(tools): browser handlers TypeError on unexpected LLM params + fuzzy_match docstring - #1735
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1. browser_tool.py: Replace **args spread on browser_click, browser_type, and browser_scroll handlers with explicit parameter extraction. The **args pattern passed all dict keys as keyword arguments, causing TypeError if the LLM sent unexpected parameters. Now extracts only the expected params (ref, text, direction) with safe defaults. 2. fuzzy_match.py: Update module docstring to match actual strategy order in code. Block anchor was listed as #3 but is actually #7. Multi-occurrence is not a separate strategy but a flag. Updated count from 9 to 8.
angelburgosrosado
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Apr 27, 2026
…er-safety fix(tools): browser handlers TypeError on unexpected LLM params + fuzzy_match docstring
02356abc
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May 14, 2026
…er-safety fix(tools): browser handlers TypeError on unexpected LLM params + fuzzy_match docstring
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…er-safety fix(tools): browser handlers TypeError on unexpected LLM params + fuzzy_match docstring
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…er-safety fix(tools): browser handlers TypeError on unexpected LLM params + fuzzy_match docstring
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Summary
1. Browser tool handler safety (browser_tool.py)
browser_click,browser_type, andbrowser_scrollhandlers used**argsspread which passed ALL dict keys as keyword arguments. If the LLM sent unexpected parameters (e.g.{"ref": "@e5", "timeout": 10}), the spread would cause aTypeError: unexpected keyword argument.Fix: Extract only the expected parameters with
.get()and safe defaults, matching the pattern used by all other browser tool handlers (navigate, snapshot, vision, etc.).2. Fuzzy match docstring (fuzzy_match.py)
The module docstring listed block_anchor as strategy #3, but it's actually #7 in the code. Multi-occurrence was listed as strategy #9 but is just the
replace_allflag. Updated to match actual code order.Test plan
python -m pytest tests/tools/test_fuzzy_match.py -n0 -q→ 9 passed ✔