[HN Gopher] Show HN: Gigacode - Use OpenCode's UI with Claude Co...
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Show HN: Gigacode - Use OpenCode's UI with Claude Code/Codex/Amp
Gigacode is an experimental, just-for-fun project that makes
OpenCode's TUI + web + SDK work with Claude Code, Codex, and Amp.
It's not a fork of OpenCode. Instead, it implements the OpenCode
protocol and just runs `opencode attach` to the server that
converts API calls to the underlying agents. We build this to
scratch our itch of being able to rapidly switch between coding
agents based on the task at hand. For example, we find that: -
Claude Code is the best executor & fast iterator - Codex (high) is
the best for complex or long-running tasks - OpenCode for fine-
tuned, do-exactly-as-I-say edits I personally believe that
harnesses matter almost as much as the models in 2026. OpenCode
lets you swap out models already, but the CC & Codex harnesses +
system prompts make a big difference in practice. Under the hood,
this is all powered by our Sandbox Agent SDK: - Sandbox Agent SDK
provides a universal HTTP API for controlling Claude Code, Codex,
and Amp - Sandbox Agent SDK exposes an OpenCode-compatible endpoint
so OpenCode can talk to any agent - OpenCode connects to Sandbox
Agent SDK via attach I want to emphasize: the Anomaly folks are
doing awesome work with OpenCode agent + Zen + Black. I use OC
regularly alongside CC & Codex depending on the task. Gigacode is
only possible because OpenCode is insanely flexible, hackable, and
well documented. Give it a try: $ curl -fsSL
https://releases.rivet.dev/sandbox-agent/latest/gigacode-ins... |
sh Check out the project, architecture, and other install options:
https://github.com/rivet-dev/sandbox-agent/tree/main/gigacod...
Author : NathanFlurry
Score : 5 points
Date : 2026-02-06 13:38 UTC (9 hours ago)
(HTM) web link (github.com)
(TXT) w3m dump (github.com)
| vercantez wrote:
| > I personally believe that harnesses matter almost as much as
| the models in 2026.
|
| Agreed. Great work
| NathanFlurry wrote:
| Thanks!
| phromo wrote:
| Spontaneously I would like a protocol between agents and the
| clients and that's exactly what agentclientprotocol.com is. I
| wonder if you shuffle acp over https is it then similar to
| sandbox api used here?
| NathanFlurry wrote:
| Yes. We want to support ACP. They have a spec for HTTP
| transport in the works, but there is nothing public on it.
| Trying to backchannel to the right folks.
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(page generated 2026-02-06 23:00 UTC)