OpenSpec

Spec-driven development toolkit for AI coding assistants: propose, iterate, and archive change artifacts with slash-commands that work across Claude, Cursor, Codex, and other agent tools.

Connects to: Claude, Cursor, Codex, GitHub Copilot, npm · · MIT 69,104★

Use it with an AI agent

Loadbay is an MCP server, so an agent can search the catalog and find this harness:

claude mcp add --transport http loadbay https://loadbay.xyz/api/mcp

• Source: https://github.com/Fission-AI/OpenSpec
• This harness as JSON: /api/harnesses/openspec
• Agent setup: /setup.md
• Browse all 780+ harnesses on Loadbay