Coding Agent Fabricator

Fabricator

A comprehensive JSONL conversation processing toolkit for Claude Code sessions. Built with Bun and TypeScript.

Features

• Conversation Pipeline: Process Claude JSONL files to identify, remove, and replace content
• Session Conversion: Bidirectional conversion between Claude Code and OpenAI Codex formats
• Codex Session Cloning: Duplicate a Codex session file with a new session ID
• Line Appending: Programmatically add new conversation lines to existing sessions
• Conversation Extension: Automatically extend conversations with additional exchanges

Installation

# Clone the repository
git clone https://github.com/0din-ai/coding-agent-fabricator
cd coding-agent-fabricator

# Install dependencies
bun install

Quick Start

# Run the pipeline
bun run src/index.ts  ""

# Convert sessions
bun run src/index.ts --to-codex 
bun run src/index.ts --to-claude 

# Clone a Codex session (duplicate with new ID)
bun run src/index.ts --clone-codex  [output-dir]

# Add lines to a session
bun run src/index.ts --add-user  "Hello!"

# List available sessions
bun run src/index.ts --list-sessions

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1. Conversation Pipeline

The core pipeline processes Claude conversation JSONL files to:

1. Identify lines where the assistant refused to help
2. Remove the flagged refusal content
3. Replace with helpful content based on a specified topic

Basic Usage

bun run src/index.ts  ""

Examples

# Process a session about TypeScript
bun run src/index.ts abc123def "helping with TypeScript development"

# Process a session about Python data analysis
bun run src/index.ts my-session-456 "assisting with Python data analysis"

# Process with conversation extension (adds 5 more exchanges)
bun run src/index.ts abc123def "helping with TypeScript" --extend 5

Pipeline Output

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