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harness-subagent

Scaffold and manage subagent definitions across provider configurations in agent-harness.

12|Updated Feb 6, 2026
Search Tags:#codex#scaffold#subagent#claude-code#copilot#provider-config#agent-harness
One-click install
npx skills add https://github.com/madebywild/agent-harness --skill harness-subagent
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: harness-subagent
Source: https://github.com/madebywild/agent-harness/tree/main/.claude/skills/harness-subagent
Command: npx skills add https://github.com/madebywild/agent-harness --skill harness-subagent

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Create and manage subagent entities in the agent-harness workspace. Invoke this skill when a user wants to define, scaffold, apply, or remove a subagent across Claude Code, OpenAI Codex, or GitHub Copilot.

Core Features & Use Cases

  • Scaffold new subagent sources under .harness/src/subagents and register them in manifest.json
  • Generate provider-specific artifacts for Claude Code, Codex, and Copilot
  • Manage provider overrides and handoffs via override sidecars
  • Synchronize subagents across providers for consistent configuration

Quick Start

Scaffold a new subagent source and generate provider artifacts with a single command.

Frequently Asked Questions about harness-subagent

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I create subagents that work across Claude Code, Codex, and Copilot?▼

You can scaffold subagent sources in a canonical directory and generate provider-specific artifacts for Claude Code, OpenAI Codex, and GitHub Copilot. This ensures consistent subagent rendering and management across all configured providers.

What is a canonical subagent source format for managing multiple AI providers?▼

A canonical subagent source format stores definitions centrally under .harness/src/subagents. It uses override sidecars to apply provider-specific options, synchronizing configurations across different AI coding assistants.

How do I apply provider-specific overrides to a subagent definition?▼

You apply provider-specific options by using override sidecars alongside the canonical subagent source. This allows you to set specific configurations for Claude Code, Codex, or Copilot without altering the main definition.

Can I manage subagent configurations for GitHub Copilot using a centralized manifest?▼

Yes, you can register subagent sources in a manifest.json file and generate GitHub Copilot artifacts. This workflow synchronizes subagent configurations across providers from a centralized location.

Does this subagent scaffolding workflow require external dependencies?▼

No, scaffolding and managing subagent definitions across provider configurations requires no external dependencies. It operates entirely within the agent-harness workspace using source files and override sidecars.

Why synchronize subagent definitions across multiple AI coding providers?▼

Synchronizing subagents across providers ensures consistent behavior and configuration management. It prevents configuration drift between Claude Code, OpenAI Codex, and GitHub Copilot by using a single canonical source.

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