Can I run tasks in the background?

Yes, the skill defaults to background mode, which allows Claude to monitor progress via a JSONL transcript while performing other duties.

What is the Codex Agent skill?

It is a specialized capability for Claude that allows it to delegate background tasks to Codex models using the Synaptic Canvas framework.

Which models does this skill support?

The skill supports various Codex models including gpt-5.2-codex, gpt-5.1-codex-max, and gpt-5.1-codex-mini.

What is the primary benefit of using this agent?

It enables high-concurrency development by allowing Claude to manage long-running AI tasks as background processes.

How do I monitor task progress?

Progress is tracked via a specific output file and a unique agentId, which allows for polling of the task status without blocking the terminal.

Codex Task Agent

Name: Codex Task Agent
Author: randlee

byrandlee

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Productivity & Workflow

Delegates complex, long-running development tasks to specialized Codex models via the Synaptic Canvas runner.

About

The Codex Agent skill empowers Claude to offload intensive coding work to specialized sub-agents, facilitating a more efficient multi-tasking workflow. By leveraging the ai_cli runner, it allows Claude to initiate asynchronous background tasks that can be monitored via JSONL transcripts while the main session remains active. This skill is particularly useful for handling time-consuming refactoring, code generation, or analysis jobs using various GPT-5 Codex model variants, ensuring high-productivity development within the Synaptic Canvas ecosystem.

Key Features

Support for multiple model tiers including GPT-5 Codex, Codex-Max, and Codex-Mini
Standardized JSON interface for precise task delegation and sub-agent control
1 GitHub stars
Asynchronous background task execution with real-time progress monitoring
Automated schema validation and centralized logging for task reliability
Flexible execution modes supporting both background and blocking operations

Use Cases

Offloading large-scale code refactoring to background sub-agents
Managing parallel development workflows within the Synaptic Canvas environment
Executing complex code generation jobs while continuing other work in Claude

About

Key Features

Support for multiple model tiers including GPT-5 Codex, Codex-Max, and Codex-Mini
Standardized JSON interface for precise task delegation and sub-agent control
1 GitHub stars
Asynchronous background task execution with real-time progress monitoring
Automated schema validation and centralized logging for task reliability
Flexible execution modes supporting both background and blocking operations

Use Cases

Offloading large-scale code refactoring to background sub-agents
Managing parallel development workflows within the Synaptic Canvas environment
Executing complex code generation jobs while continuing other work in Claude