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

# Cortex documentation

> Guides for every Cortex application: Chat, Code, Bot, the CLI, Design and Security, plus accounts, plans, settings and reference.

Cortex is a set of applications that share one account on `cortex.foundation`. **Cortex Chat** answers questions and does research, **Cortex Code** works inside your repositories, **Cortex Bot** runs on a computer of its own, **Cortex CLI** drives Code from a terminal, **Cortex Design** holds canvases, and **Cortex Security** reviews pull requests where they already live. The same sign-in opens all of them.

This is the product documentation. It explains what each application does, what you can do without an account, what signing in adds, and where every control lives. Start with the card for the application you came here for, or take the quickstart if you have never opened Cortex at all.

## Pick an application

<CardGroup cols={3}>
  <Card title="Cortex Chat" icon="comments" href="/chat/index">
    Ask, research and create. Conversations, projects, Library, memory, tools, images and scheduled tasks. The only application that works before you sign in.
  </Card>

  <Card title="Cortex Code" icon="code" href="/code/index">
    Agents in your repositories. Sessions, isolated runtimes, approvals, changes, tickets and pull-request review. Not a chat with a different icon.
  </Card>

  <Card title="Cortex Bot" icon="robot" href="/bot/index">
    A teammate with a computer. A bot browses, clicks and works on a desktop you can watch, and parks consequential steps for your approval.
  </Card>

  <Card title="Cortex CLI" icon="terminal" href="/cli/index">
    Cortex Code in the terminal. Install, sign in, run sessions, use local and remote hosts, script headless runs and wire it into continuous integration.
  </Card>

  <Card title="Cortex Design" icon="pen-ruler" href="/design/index">
    Canvases hosted from Chat or Code and edited in the Cortex Design desktop app. Versions, a reusable library and export.
  </Card>

  <Card title="Cortex Security" icon="shield-halved" href="/security/index">
    Pull-request review without pasting a diff. The change stays in the repository and Cortex reads it there, then writes a check run and a summary.
  </Card>
</CardGroup>

## Which one do I need?

| You want to | Open |
| - | - |
| Ask a question, write, research, work with documents or pictures | [Cortex Chat](/chat/index) |
| Change a repository, run tests, open a pull request | [Cortex Code](/code/index) |
| Hand ongoing work to an agent that browses and clicks on its own desktop | [Cortex Bot](/bot/index) |
| Drive the same Code sessions from your terminal, a script or a pipeline | [Cortex CLI](/cli/index) |
| Lay out a board of frames, components and notes | [Cortex Design](/design/index) |
| Review changes in the repository where they already live | [Cortex Security](/security/index) |

For the long version, with what each one needs before it will open, read [Which product do I need?](/getting-started/choose-a-product).

<Note>
  Chat is never gated. Everything else is for signed-in accounts, and Cortex Code and Cortex Bot are in closed beta, so a signed-in account that has not been invited sees a dialog offering to continue in Chat. See [Accounts and sign-in](/getting-started/accounts).
</Note>

## First steps

<CardGroup cols={2}>
  <Card title="Quickstart" icon="rocket" href="/getting-started/quickstart">
    From an open browser tab to a first answer, then sign in and open the rest.
  </Card>

  <Card title="What is Cortex" icon="circle-info" href="/getting-started/what-is-cortex">
    The applications, the models, the one account, and which hostname serves what.
  </Card>

  <Card title="Which product do I need?" icon="signs-post" href="/getting-started/choose-a-product">
    A task table that maps what you want to do to the application that does it.
  </Card>

  <Card title="Accounts and sign-in" icon="user" href="/getting-started/accounts">
    What a guest can do, what signing in adds, and how the member-only gates read.
  </Card>

  <Card title="Plans and quotas" icon="credit-card" href="/getting-started/plans">
    Guest, Free, Go, Plus and Pro, the two message windows, and how a limit resets.
  </Card>

  <Card title="Ways to run Cortex" icon="download" href="/getting-started/downloads">
    The browser, the desktop app and the command line, and what only the last two can do.
  </Card>
</CardGroup>

## Settings and your data

<CardGroup cols={2}>
  <Card title="Settings" icon="gear" href="/getting-started/settings">
    The seven Settings tabs and every control inside them, plus the search across tabs.
  </Card>

  <Card title="Data and privacy" icon="user-shield" href="/getting-started/data-and-privacy">
    Cookie consent, Global Privacy Control, memory, export and permanent deletion.
  </Card>

  <Card title="Two-factor authentication" icon="lock" href="/getting-started/two-factor">
    Enrol an authenticator app, and the confirmation that export and deletion require.
  </Card>

  <Card title="Interface language" icon="language" href="/getting-started/language">
    The eight interface languages, how to switch, and what stays in English.
  </Card>
</CardGroup>

## Reference and help

<CardGroup cols={3}>
  <Card title="Troubleshooting" icon="life-ring" href="/getting-started/troubleshooting">
    What a message means across Chat, Code and Bot: gates, quotas, reconnects, maintenance.
  </Card>

  <Card title="Limits and quotas" icon="gauge-high" href="/reference/limits">
    Every user-facing limit in one table.
  </Card>

  <Card title="Models" icon="microchip" href="/reference/models">
    The models Cortex serves today and what each one is for.
  </Card>

  <Card title="Errors" icon="triangle-exclamation" href="/reference/errors">
    How a failure is reported, and the catalogue of problem codes behind it.
  </Card>

  <Card title="Problem catalog" icon="list" href="/problems/index">
    One page per problem code, with what it means and what to do.
  </Card>

  <Card title="Security and privacy" icon="user-shield" href="/reference/security-and-privacy">
    What Cortex stores, what it never stores, and what this deployment does not certify.
  </Card>

  <Card title="System status" icon="signal" href="/reference/status">
    Live availability, incidents and maintenance windows.
  </Card>

  <Card title="Cortex Bounty" icon="coins" href="/bounty/index">
    Pair a hotkey, file a report, and how verdicts are scored.
  </Card>

  <Card title="Changelog" icon="clock-rotate-left" href="/changelog">
    What shipped, dated, with the surface it changed.
  </Card>
</CardGroup>

## Related

* [Quickstart](/getting-started/quickstart)
* [What is Cortex](/getting-started/what-is-cortex)
* [Which product do I need?](/getting-started/choose-a-product)
* [Frequently asked questions](/getting-started/faq)
* [Glossary](/getting-started/glossary)
* [Troubleshooting](/getting-started/troubleshooting)


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