# Codex as a subagent of Claude Code, and the other way round > In Shuriken 5.3 the agent in any chat can start background agents and chats on Codex, Gemini CLI and your other providers, each with hot swapping. Source: https://shuriken.sh/blog/agents-on-every-provider In Shuriken 5.3 the agent in any chat can start background agents and chats on Codex, Gemini CLI and your other providers, each with hot swapping. [Update](https://shuriken.sh/blog) By Shuriken Updated 8 November 2026 2 min read **Contents** In Shuriken 5.3 you can use Codex as a subagent of Claude Code by asking for it. The agent in any chat can start background agents and new chats on any provider you have, and Codex or Gemini CLI can do the same with Claude Code. Each agent it starts is a Shuriken chat on one of your accounts, with [hot swapping](https://shuriken.sh/features/source-switching) like any chat you open. ## What was missing before 5.3 # Before 5.3, the agent in a chat could open a new chat for you, on another provider too, once you confirmed a card. It could not start work in the background, hear when that work was done, or read what came back. Claude Code's own subagents run inside its session, on Claude, so handing a part of a task to Codex meant opening a second chat and pasting the context into it yourself. 5.3 gives every agent in a Shuriken chat list_providers, start_agents, read_result, continue_chat and adopt_result, next to the new_chat it already had. The [feature page](https://shuriken.sh/features/agents-on-any-provider) has a table of what each one does. ## What you can use it for # We don't prescribe a workflow. These are requests the tools can carry out: - "Have Codex write the tests for this module while you finish the UI." - "Ask Gemini to review this diff." - "Run the data migration on Codex in the background and tell me when it's done." - "Claude is at its weekly limit. Carry this chat on in Codex." - "Try this on three providers, each on its own branch, and merge the one whose tests pass." The agent first asks Shuriken what this computer can run: which agents are installed, their models, and how much of each of your accounts' 5-hour and weekly limits is used. It can start up to 8 agents in one call, listed under the chat that asked. They work in that chat's folder, like its own subagents, unless it gives each a branch of its own. When one finishes, the chat hears about it and can read its last answer. Shuriken's Activity panel shows every subagent, background command and monitor a chat runs, live. [Try Shuriken](https://shuriken.sh/) ## Handing a chat to another provider # An agent can also hand the chat it is in to another provider. It writes a handover (the goal, what was decided and done, what is left), and a new chat on, say, Codex starts from it, linked back to the Claude Code chat it came from. The old chat stays as it was. [Claude Code and Codex in one project](https://shuriken.sh/blog/claude-and-codex-together) covers doing that switch by hand. ## The limits we put on it # Only a chat you are in can start agents, and one chat starts at most 24 chats an hour. The agent never sees a sign-in, a key or an e-mail address, only the names you gave your accounts and how much each has left. Everything it starts is a normal chat on your own plans: hot swapping moves it to another of your accounts when one nears its limit, and when a provider has no account with room it waits for the reset. [Try Shuriken](https://shuriken.sh/) Share [X](https://x.com/intent/post?url=https%3A%2F%2Fshuriken.sh%2Fblog%2Fagents-on-every-provider&text=Codex%20as%20a%20subagent%20of%20Claude%20Code%2C%20and%20the%20other%20way%20round)[LinkedIn](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Fshuriken.sh%2Fblog%2Fagents-on-every-provider)[Hacker News](https://news.ycombinator.com/submitlink?u=https%3A%2F%2Fshuriken.sh%2Fblog%2Fagents-on-every-provider&t=Codex%20as%20a%20subagent%20of%20Claude%20Code%2C%20and%20the%20other%20way%20round)[Reddit](https://www.reddit.com/submit?url=https%3A%2F%2Fshuriken.sh%2Fblog%2Fagents-on-every-provider&title=Codex%20as%20a%20subagent%20of%20Claude%20Code%2C%20and%20the%20other%20way%20round)[E-mail](mailto:?subject=Codex%20as%20a%20subagent%20of%20Claude%20Code%2C%20and%20the%20other%20way%20round&body=https%3A%2F%2Fshuriken.sh%2Fblog%2Fagents-on-every-provider) ## Frequently asked questions **Do I need an account with every provider?** Only with the ones you want it to use. The agent sees which providers on that computer are installed and have an account in Shuriken, and picks among those. **Does it cost more usage?** Every agent it starts runs its own turns on one of your plans, the same as if you had opened that chat yourself. The agent can see how much each account has left before it starts. **Can I stop it from starting agents?** Yes. Turn off Settings › Agents › Let agents ask to act, and no agent starts a chat or an agent for you. Activity Every agent, step and shell, live. Subagents, workflow phases, background commands and monitors in one panel, while the chat runs. [Try Shuriken](https://shuriken.sh/) [How it works](https://shuriken.sh/features/activity) ## Keep reading - [Claude Code agent view: run background sessions: Guide 27 Oct 2026 8 min read Claude Code's agent view (claude agents) lists every background session. They survive a closed terminal and sleep; a reboot stops them until you reply.](https://shuriken.sh/guides/claude-code-agent-view) - [Claude Code background tasks: dev servers and Ctrl+B: Guide 27 Oct 2026 7 min read Ask Claude Code to run a dev server in the background, or press Ctrl+B while it runs. List and stop it with /tasks; exiting Claude Code stops it.](https://shuriken.sh/guides/claude-code-background-tasks) - [Every plan and key you own, working as one: Story 27 Oct 2026 4 min read Add your Claude, ChatGPT, Gemini and other plans and API keys to Shuriken as sources. When one runs out, your chats move to the next.](https://shuriken.sh/blog/what-is-a-source) - [Ollama and LM Studio as sources: Update 7 Nov 2026 4 min read Use LM Studio or Ollama with Claude Code or Codex: add a local model as a source in Shuriken in three steps and test it. It runs on your own computer.](https://shuriken.sh/blog/local-models-ollama-lm-studio) - [MCP servers, set up once for chosen projects: Update 3 Nov 2026 3 min read Turn an MCP server on for every project or only the ones you pick. Your agents' chats there get it, and one sign-in covers them all.](https://shuriken.sh/blog/mcps-for-chosen-projects) ## Free tools - [Claude limit reset tracker](https://shuriken.sh/tools/limit-resets/claude) - [Codex limit reset tracker](https://shuriken.sh/tools/limit-resets/codex)