fix(tools): add serde alias for Grep tool head_limit parameter #63
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echobt
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Feb 4, 2026
This PR consolidates the following tools fixes: - #53: Add serde alias for Glob tool folder parameter - #62: Align tool handler names with registration names - #63: Add serde alias for Grep tool head_limit parameter Key changes: - Added serde aliases for backward compatibility - Fixed mismatched handler names to match tool registration - Improved tool parameter handling consistency
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Consolidated into #75 - fix(tools): consolidated tools parameter aliases and handler name fixes |
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Problem
The Grep tool handler uses a parameter named
max_resultsinternally, but the tool definition exposed to models useshead_limitas the parameter name. This inconsistency can cause models to send incorrect parameter names, resulting in the limit not being applied correctly.Solution
Added a serde alias
#[serde(alias = "head_limit")]to themax_resultsfield in theGrepArgsstruct. This allows the handler to accept both parameter names:max_results(internal name)head_limit(tool definition name)Testing
cargo check -p cortex-engine