[FEATURE]

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

System tool definitions consume ~17k tokens (8.5% of 200k context) before any user interaction begins. For users working with:

• Large codebases requiring maximum context for code
• Focused workflows (e.g., code review only, no git operations)
• Cost-sensitive use cases
• Disabling tool use still loads the definitions

Proposed Solution

Add configuration to disable or slim down tool definitions:

{
"toolProfile": "lite" // or "full", "minimal", "custom"
}

Profiles:

• full - Current behavior (all tools, verbose descriptions)
• lite - All tools, condensed descriptions (~8k tokens)
• minimal - Core tools only (Read, Edit, Write, Bash, Grep, Glob)
• custom - User specifies which tools to load

Alternative Solutions

_No response_

Priority

Low - Nice to have

Feature Category

Configuration and settings

Use Case Example

1. Large monorepo navigation - Need maximum context for code, minimal tool overhead
2. Code review workflows - Only need Read, Grep, Glob - no Edit/Write/Bash
3. Documentation tasks - Don't need Bash, NotebookEdit, WebSearch
4. Cost optimization - Reduce input tokens per request

Additional Context

_No response_