v1.15.3 - Pi Parameter Validation Fix

Fixed

• Pi Custom Tools: Parameter Handling - Fixed parameter validation and default values
  • Added validation for all required parameters (file, target, section, etc.)
  • Added explicit default value handling using ?? operator for optional parameters
  • Prevents tools from failing when Pi doesn't pass parameter values
  • Solves critical issue where tools failed with missing parameters:
    • Root cause: TypeBox default values not automatically populated in params object
    • Pi may call tools without passing values, even for required parameters
  • All 9 tools now validate inputs and handle defaults correctly
  • Clear error messages guide LLM to provide required parameters

Example

Before this fix, Pi might call invar_sig() without a target parameter, causing:

Failed to get signatures: undefined

After this fix, the tool validates and provides clear feedback:

Missing required parameter: target (file path or file::symbol)