Codex and Claude Code browsers are being used to run mini apps as live agent tools
RileyRalmuto · x · 2026-07-28
The author describes a workflow where Codex and Claude Code browser sessions can run mini apps as live tools inside the browser.
Their example, Polychat, is a quick app that connects Claude, Codex, Kimi, Grok, and other agent harnesses into a group chat. The author also uses session-context selection so an agent can be dropped into a project or open session, review specs, discuss implementation, and keep iterating until agreement is reached.
The core idea is that the browser becomes a programmable layer for multi-agent collaboration, not just a chat surface.
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