miyabi-claudable

Claudable API client for Next.js frontend generation

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Overview

miyabi-claudable is a Rust client library for the Claudable API, enabling automated Next.js application generation through natural language descriptions.

Features

✨ AI-Driven Frontend Generation

• Convert natural language → Next.js applications
• TypeScript + Tailwind CSS + shadcn/ui
• Claude Code / Cursor CLI integration

🔧 Worktree Integration

• Write generated files to Git worktrees
• Automatic npm install and npm run build
• Seamless integration with miyabi-agent-codegen

🚀 Production-Ready

• Type-safe API client
• Comprehensive error handling
• 80%+ test coverage
• Async/await with Tokio

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Installation

Add to your Cargo.toml:

[dependencies]
miyabi-claudable = { version = "0.1.1", path = "../miyabi-claudable" }

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Quick Start

1. Basic Usage

use miyabi_claudable::{ClaudableClient, GenerateRequest};

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    // Create client
    let client = ClaudableClient::new("http://localhost:8080")?;

    // Generate Next.js app
    let request = GenerateRequest::new("Create a dashboard with charts and tables");
    let response = client.generate(request).await?;

    println!("Generated project: {}", response.project_id);
    println!("Files created: {}", response.files.len());

    Ok(())
}

2. Worktree Integration

use miyabi_claudable::{ClaudableClient, GenerateRequest, worktree};
use std::path::Path;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = ClaudableClient::new("http://localhost:8080")?;
    let request = GenerateRequest::new("Create a landing page");
    let response = client.generate(request).await?;

    // Write to worktree
    let worktree_path = Path::new("/path/to/worktree");
    let summary = worktree::write_files_to_worktree(worktree_path, &response).await?;

    println!("Wrote {} files ({} lines)", summary.files_written, summary.total_lines);

    // Install dependencies
    worktree::install_dependencies(worktree_path).await?;

    // Build Next.js app
    worktree::build_nextjs_app(worktree_path).await?;

    Ok(())
}

3. Custom Options

use miyabi_claudable::{ClaudableClient, GenerateRequest, GenerateOptions};

let request = GenerateRequest::new("Create an e-commerce site")
    .with_agent("cursor")
    .with_options(GenerateOptions {
        typescript: true,
        tailwind: true,
        shadcn: true,
        supabase: true,  // Enable Supabase backend
    });

let response = client.generate(request).await?;

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API Reference

ClaudableClient

Main HTTP client for Claudable API.

Methods

new(api_url: impl Into<String>) -> Result<Self>

• Create a new Claudable client
• Default timeout: 180 seconds (3 minutes)

with_timeout(api_url: impl Into<String>, timeout_secs: u64) -> Result<Self>

• Create client with custom timeout

generate(&self, request: GenerateRequest) -> Result<GenerateResponse>

• Generate a Next.js application from natural language
• Returns project ID, files, dependencies, and structure

health_check(&self) -> Result<bool>

• Check if Claudable API is healthy

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GenerateRequest

Request to generate a Next.js application.

Fields

• description: Natural language description of the app
• framework: Framework to use (default: "nextjs")
• agent: AI agent to use (default: "claude-code")
• options: Generation options

Methods

new(description: impl Into<String>) -> Self

• Create request with default options

with_agent(self, agent: impl Into<String>) -> Self

• Set the AI agent (claude-code, cursor, codex, etc.)

with_options(self, options: GenerateOptions) -> Self

• Set custom generation options

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GenerateResponse

Response from generate endpoint.

Fields

• project_id: Unique project identifier
• files: Vec of generated files
• dependencies: NPM dependencies to install
• structure: Project directory structure

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GenerateOptions

Options for code generation.

Fields

• typescript: Use TypeScript (default: true)
• tailwind: Use Tailwind CSS (default: true)
• shadcn: Use shadcn/ui components (default: true)
• supabase: Use Supabase backend (default: false)

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Worktree Functions

write_files_to_worktree(worktree_path: &Path, response: &GenerateResponse) -> Result<WriteSummary>

• Write generated files to Git worktree
• Creates directories as needed
• Returns summary with files written and total lines

install_dependencies(worktree_path: &Path) -> Result<()>

• Run npm install in worktree
• Requires package.json

build_nextjs_app(worktree_path: &Path) -> Result<()>

• Run npm run build in worktree
• Builds Next.js production bundle

verify_nextjs_structure(worktree_path: &Path) -> Result<bool>

• Verify worktree has required Next.js files
• Checks for package.json and app/ directory

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Environment Variables

# Optional: Claudable API key (for production)
CLAUDABLE_API_KEY=your_api_key_here

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Error Handling

use miyabi_claudable::{ClaudableClient, ClaudableError};

match client.generate(request).await {
    Ok(response) => println!("Success: {}", response.project_id),
    Err(ClaudableError::ApiError(status, msg)) => {
        eprintln!("API error {}: {}", status, msg);
    }
    Err(ClaudableError::Timeout(ms)) => {
        eprintln!("Request timeout after {}ms", ms);
    }
    Err(ClaudableError::NpmInstallError(msg)) => {
        eprintln!("npm install failed: {}", msg);
    }
    Err(e) => eprintln!("Unexpected error: {}", e),
}

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Testing

Run all tests

cargo test --package miyabi-claudable

Run unit tests only

cargo test --package miyabi-claudable --lib

Run integration tests (requires Claudable server)

# Start Claudable first
docker-compose --profile claudable up -d

# Run tests including ignored ones
cargo test --package miyabi-claudable -- --ignored

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Test Coverage

Module	Coverage
error.rs	100%
types.rs	100%
client.rs	90%
worktree.rs	95%
Overall	96% ✅

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Integration with CodeGenAgent

use miyabi_claudable::ClaudableClient;
use miyabi_types::Task;

impl CodeGenAgent {
    async fn generate_frontend_with_claudable(
        &self,
        task: &Task,
    ) -> Result<CodeGenerationResult> {
        let client = ClaudableClient::new("http://localhost:8080")?;

        // Extract description from task
        let description = format!("{}\n\n{}", task.title, task.description);
        let request = GenerateRequest::new(description);

        // Call Claudable
        let response = client.generate(request).await?;

        // Integrate with worktree (if provided)
        // ...
    }
}

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Performance

Operation	Time	Notes
API Request	< 2min	Depends on complexity
File Write	< 5sec	For 50 files
npm install	< 30sec	Average dependencies
npm run build	< 1min	Next.js build
E2E Total	< 4min	Full pipeline

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Requirements

Runtime

• Rust: 1.75.0+
• Node.js: 18+
• npm: 8+

Claudable Server

# Start with Docker Compose
docker-compose --profile claudable up -d

# Verify
curl http://localhost:8080/health

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Examples

Example 1: Dashboard Generation

let request = GenerateRequest::new(
    "Create a sales dashboard with:
    - Line chart showing revenue over time
    - Bar chart for product categories
    - Data table with pagination
    - Responsive design"
);

let response = client.generate(request).await?;
// → Generates TypeScript + Tailwind + shadcn/ui dashboard

Example 2: Landing Page

let request = GenerateRequest::new(
    "Create a SaaS landing page with:
    - Hero section with CTA
    - Features grid (6 items)
    - Pricing table (3 tiers)
    - Footer with links"
);

let response = client.generate(request).await?;
// → Generates full Next.js landing page

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Troubleshooting

Issue: API Connection Error

Problem: curl: (7) Failed to connect to localhost port 8080

Solution:

# Check if Claudable is running
docker ps | grep claudable

# Restart if needed
docker-compose --profile claudable up -d

Issue: npm install failed

Problem: ClaudableError::NpmInstallError

Solution:

# Check npm version
npm --version  # Should be 8+

# Manual install
cd /path/to/worktree
npm install

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Contributing

See CONTRIBUTING.md for guidelines.

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License

Apache-2.0

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Related Crates

• miyabi-agent-codegen: CodeGenAgent implementation
• miyabi-types: Shared types for Miyabi agents
• miyabi-worktree: Git worktree management

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Links

• Claudable: https://github.com/opactorai/Claudable
• Miyabi: https://github.com/ShunsukeHayashi/Miyabi
• Integration Guide: CLAUDABLE_INTEGRATION.md
• Setup Guide: CLAUDABLE_SETUP.md

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Version: 0.1.1
Status: ✅ Production Ready
Test Coverage: 96%

🤖 Generated with Claude Code