Auto-detect and prefer user-installed CLI tools over built-in

[mcodilla]

Describe the feature or problem you'd like to solve

The agent has no mechanism to discover equivalent tools on PATH to either opt for them first or use them as a fallback. It continues with a failing or inferior tool

Proposed solution

• Reduces friction
• Reduces wasted turns
• It uses the tools that I use so I can easily trace what happened

Example prompts or workflows

• "Find all usages of interface across this repo"
• "Lint all the modified typescript files"
• "Search this project for todo comments and summarize them"
• "Run tests for this module/component. Iterate until they pass"
• "Find all files larger than 1 mb in this directory and sub directories

Additional context

No response