Harness / IDE
Runtime surface (Claude Code, Cursor, custom backend).
Claude Code
Anthropic's official agentic CLI; plugins, skills, hooks, MCP, subagents.
used in
4
commercial
subscription
Aider
OSS AI pair programmer for the terminal; multi-model, git-native.
used in
1
open source
free
Amp
Frontier coding agent originally built at Sourcegraph, now developed by the independent Amp Frontier Corporation.
used in
0
commercial
usage
Cline
Open-source coding agent that runs as an IDE extension and CLI with bring-your-own-key model access.
used in
0
hybrid
freemium
OpenAI Codex CLI
OpenAI's official terminal coding agent; adopts the SKILL.md standard.
used in
0
open source
freemium
Cursor
AI-native code editor (VS Code fork) with agent mode, codebase indexing.
used in
0
commercial
subscription
Devin
Cognition's autonomous cloud software engineer that plans, codes, tests, and opens pull requests on its own.
used in
0
commercial
freemium
Factory
Agent-native software development platform from Factory AI, powered by its Droid agents in the terminal, desktop, and web.
used in
0
commercial
subscription
GitHub Copilot
GitHub's AI pair programmer with an in-IDE agent mode and a cloud coding agent that turns assigned issues into pull requests.
used in
0
commercial
subscription
Goose
Open-source, on-machine AI agent created by Block, now hosted at the Linux Foundation's Agentic AI Foundation.
used in
0
open source
free
Jules
Google's asynchronous coding agent that takes GitHub tasks, proposes a plan, and delivers pull requests.
used in
0
commercial
freemium
OpenCode
Open-source AI coding agent for the terminal, IDE, and desktop, maintained by Anomaly.
used in
0
hybrid
freemium
OpenHands
Open-source, model-agnostic platform for running autonomous software engineering agents, formerly known as OpenDevin.
used in
0
hybrid
freemium
Windsurf (now Devin Desktop)
Agentic AI IDE acquired by Cognition in 2025 and rebranded Devin Desktop in June 2026.
used in
0
commercial
freemium