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OpenCode (Unofficial) — AI Coding Assistant for VS Code

OpenCode — an open-source, community-built VS Code client for the opencode CLI agent.

Plugin by koarthur

IndexedMIT★ 15
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Install

Works with VS Code, Cursor, Windsurf, VSCodium. Read the repository before you give any tool access to your data.

code --install-extension koarthur.opencode-harness

Or search "koarthur.opencode-harness" in the Extensions view. Page: https://open-vsx.org/extension/koarthur/opencode-harness

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About

OpenCode — an open-source, community-built VS Code client for the opencode CLI agent. Chat, refactor, debug, and write code with Claude, GPT, Gemini, and models from 75+ providers in a multi-tab chat panel: side-by-side diffs, permission modes, checkpoint rollback, cost and rate-limit tracking, local voice input, and CLI theme parity. Free to use — you pay only your AI provider. Not developed by, affiliated with, or endorsed by the OpenCode team.

Use cases: ai, chat, machine-learning, programming-languages, code-generation, refactoring, debugging

Reviews

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Permissions

What this plugin can do and what it asks for, from its plugin files. Checked Oct 25, 2026.

Tools
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Secrets
None asked for
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What's inside

An editor extension; its features are described by the publisher above.

Built for
VS Code
Install name
koarthur.opencode-harness
Downloads
10,696 on Open VSX

Signals

Stars
15
Forks
2
Open issues
0
Last commit
Sep 14, 2026 (1 month ago)

From GitHub (fetched Oct 24, 2026).

Details

Version
0.4.73
License
MIT
Repository
github.com/K-Arthur/opencode-harness
Website
github.com/K-Arthur/opencode-harness#readme
First seen
Oct 24, 2026
Last checked
Oct 25, 2026
Source
Open VSXgithub-graphql
Cite this page

OpenCode (Unofficial) — AI Coding Assistant for VS Code VS Code extension. Agent Mart. https://agentmart.dev/plugins/opencode-harness-koarthur-vscode (last updated 2026-10-25)