Harnesses

Coding-agent tools with instruction-file guidance, context handling, permissions, and cautions. Harness behavior stays separate from model behavior.

Aider
Aider · active
aider
Aider is a terminal-native AI pair-programming harness. This entry covers its repository context, conventions, edit, and verification workflows, not the behavior of the model selected for a session.
No declared filesCurrent · verified Sep 17, 2026
Claude Code
Anthropic · active
claude-code
Claude Code is Anthropic's coding-agent harness. These notes describe the tool environment, not the underlying Claude model.
CLAUDE.mdCurrent · verified Sep 7, 2026
Codex
OpenAI · active
codex
Codex is OpenAI's coding-agent harness. This entry covers harness behavior rather than behavior of any underlying model.
AGENTS.mdCurrent · verified Sep 7, 2026
Cursor
Cursor · active
cursor
Cursor is an editor and CLI coding-agent harness. These notes cover its rules, context, and permission behavior rather than the underlying model.
AGENTS.mdCLAUDE.md.cursorrulesCurrent · verified Sep 17, 2026
Gemini CLI
Google · active
gemini-cli
Gemini CLI is Google's terminal coding-agent harness. This entry describes its context-file behavior, not behavior inherent to the underlying Gemini model.
GEMINI.mdCurrent · verified Sep 8, 2026
GitHub Copilot CLI
GitHub · active
github-copilot-cli
GitHub Copilot CLI is a terminal-native coding-agent harness. This entry covers its instruction discovery, session controls, and permissions, not the behavior of whichever model it runs.
AGENTS.mdCLAUDE.mdGEMINI.mdCurrent · verified Sep 17, 2026
OpenCode
OpenCode · active
opencode
OpenCode is a terminal-native coding-agent harness. This entry covers its instruction loading, agent modes, and permission boundaries, not the behavior of the model selected for a session.
AGENTS.mdCurrent · verified Sep 17, 2026