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

# AI and tooling

> Understand KilatKoding's runtime AI features and the repository files that make it friendly to AI coding assistants.

## The two AI layers in KilatKoding

KilatKoding includes two different AI layers:

* AI features for your product,
* AI coding assistant configuration for your development workflow.

## AI features for your product

### Available routes

| Route              | Purpose                  |
| ------------------ | ------------------------ |
| `/api/ai/chat`     | Streaming chat           |
| `/api/ai/generate` | One-shot text generation |

### Core files

| File                   | Purpose                                              |
| ---------------------- | ---------------------------------------------------- |
| `lib/ai/provider.ts`   | Selects the provider and model                       |
| `lib/ai/middleware.ts` | Handles auth check, provider check, and usage limits |
| `lib/ai/usage.ts`      | Tracks token usage and plan limits                   |
| `hooks/use-ai-chat.ts` | Client hook for chat UI                              |

### Supported providers

| Provider  | Required env        | Default model as of March 19, 2026 |
| --------- | ------------------- | ---------------------------------- |
| OpenAI    | `OPENAI_API_KEY`    | `gpt-4o`                           |
| Anthropic | `ANTHROPIC_API_KEY` | `claude-sonnet-4-20250514`         |

### Token limits by plan

| Plan       | Monthly token limit |
| ---------- | ------------------- |
| `FREE`     | `0`                 |
| `BASIC`    | `10_000`            |
| `PRO`      | `100_000`           |
| `ULTIMATE` | Unlimited           |

### AI request rate limits

| Plan       | Request limit             |
| ---------- | ------------------------- |
| `FREE`     | 10 requests per 5 minutes |
| `BASIC`    | 20 requests per 5 minutes |
| `PRO`      | 40 requests per 5 minutes |
| `ULTIMATE` | 80 requests per 5 minutes |

## How to disable AI

If your product does not need AI yet:

```env theme={null}
NEXT_PUBLIC_ENABLE_AI=false
```

This keeps the repository simpler to operate without deleting the AI files or routes.

## AI tooling for developers

The repository also includes context files for several AI coding tools:

| File                              | Tool                                           |
| --------------------------------- | ---------------------------------------------- |
| `AGENTS.md`                       | General agent guidance and repository workflow |
| `CLAUDE.md`                       | Claude Code                                    |
| `.github/copilot-instructions.md` | GitHub Copilot                                 |
| `.cursorrules`                    | Cursor                                         |
| `.windsurfrules`                  | Windsurf                                       |

These files exist to provide accurate context about the stack, structure, and working rules, so AI output is more relevant and less likely to suggest the wrong patterns.

## When you should touch this area

* you want to enable AI features for end users,
* you want to change the default provider,
* you want to adjust token limits by plan,
* you want to update the instructions used by your team’s AI coding assistants.

## When you can ignore this area

* you do not need AI features in the product yet,
* you are only changing branding, content, or marketing pages.

<Tip>
  If you are focused on shipping the MVP quickly, AI can stay disabled at first. KilatKoding is still valuable even without turning the AI layer on.
</Tip>