Harness Adapters | AI SDK 日本語

Harness adapters connect HarnessAgent to a specific agent runtime. They are the harness equivalent of AI SDK model providers: each adapter wraps one runtime and normalizes its sessions, stream events, tools, usage, lifecycle state, and configuration into the harness contract.

AI SDK Harness Adapters

The AI SDK includes the following harness adapters:

Claude Code (@ai-sdk/harness-claude-code)
Cline (@ai-sdk/harness-cline)
Codex (@ai-sdk/harness-codex)
Cursor (@ai-sdk/harness-cursor)
Deep Agents (@ai-sdk/harness-deepagents)
fx (@ai-sdk/harness-fx)
GitHub Copilot (@ai-sdk/harness-github-copilot)
Grok Build (@ai-sdk/harness-grok-build)
OpenCode (@ai-sdk/harness-opencode)
Pi (@ai-sdk/harness-pi)

Coming Soon

Amp (@ai-sdk/harness-amp)
Goose (@ai-sdk/harness-goose)
Mastra (@ai-sdk/harness-mastra)

Adapter Capabilities

Adapter	Runtime location	Custom tools	Custom skills	Structured output	Built-in tool approval	Built-in tool filtering	Image input	History access
Claude Code	Sandbox bridge	✓	✓	✓	✓	✓	✓	✗
Cline	Host process	✓	✓	✓	✓	✓	✓	✗
Codex	Sandbox bridge	✓	✓	✓	✗	✗	✓	✗
Cursor	Sandbox via ACP	✓	✓	✗	✗	✗	✓	✗
Deep Agents	Sandbox bridge	✓	✓	✓	✓	✓ via auto-rejection	✓	✗
fx	Host process	✓	✓	✓	✓	✓	✓	✗
GitHub Copilot	Sandbox via ACP	✓	✓	✗	✗	✗	✓	✗
Grok Build	Sandbox via ACP	✓	✓	✓	✗	✗	✓	✗
OpenCode	Sandbox bridge	✓	✓	✓	✓	✓	✓	✗
Pi	Host process	✓	✓	✗	✓	✓	✓	✗