> ## Documentation Index
> Fetch the complete documentation index at: https://docs.keinsaas.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Chat Customization

> Tune the Navigator chat experience for your working style.

Chat customization covers the model, tools, prompts, files, visual preferences, and interaction mode used in a thread.

## Common customizations

<AccordionGroup>
  <Accordion title="Model selection" icon="brain">
    Choose a model based on reasoning quality, latency, cost, or provider availability.
  </Accordion>

  <Accordion title="Tool presets" icon="sliders">
    Save groups of tools for common tasks such as research, browser testing, or account management.
  </Accordion>

  <Accordion title="System preferences" icon="message-square">
    Set personal instructions for tone, language, formatting, and how much detail the assistant should provide.
  </Accordion>

  <Accordion title="Theme and interface" icon="palette">
    Use the available app preferences to match the workspace to your daily setup.
  </Accordion>
</AccordionGroup>

## A practical setup

<Steps>
  <Step title="Pick a default model">
    Start with the model you trust most for general reasoning.
  </Step>

  <Step title="Create one research preset">
    Include web search, URL extraction, and table/chart tools.
  </Step>

  <Step title="Create one action preset">
    Include MCP tools that touch external systems, and keep Tool Choice Mode on manual.
  </Step>

  <Step title="Write personal instructions">
    Add short preferences for style, language, source handling, and output format.
  </Step>
</Steps>

<Tip>
  If a thread starts behaving unpredictably, reduce the active tools first. A smaller tool set usually makes routing clearer.
</Tip>