box by Simular: plugins

box gives your AI agent a computer of its own: a cloud Linux desktop with Chrome and a shell that it drives over MCP, while your own computer stays free. You can watch it live and take over at https://box.simular.ai/box.

Most agents need no plugin: add the MCP server https://mcp.box.simular.ai/mcp and sign in once (see https://box.simular.ai/install). This repository holds a package for each agent that installs box its own way. Each folder stands alone and is released through that agent's channel.

Agent	Folder	Sign-in	Install
Claude Code and Cowork	claude/	OAuth, once in the browser	/plugin marketplace add simular-ai/box-plugin, then /plugin install simular-box@simular-box
DeepSeek Harness (dsh)	dsh/	Personal key (cb_...), pasted on the plugin's page in Plugins	dsh/README.md
OpenClaw	openclaw/	OAuth, once from the plugin's page in Settings	openclaw plugins install @simular-ai/openclaw-box
Any of Claude Code, Codex, Cursor, OpenCode, Gemini CLI, Hermes, OpenClaw, VS Code (and steps for Claude Desktop)	@simular-ai/box (the box CLI, from simular-ai/box-cli)	OAuth; personal key with --auth key for Hermes and OpenClaw	npx @simular-ai/box connect (check with npx @simular-ai/box doctor)
Hermes Agent	hermes/	Personal key (cb_...) in MCP_BOX_API_KEY; OAuth optional	hermes/README.md
ChatGPT and Codex (OpenAI plugin directory)	openai/	OAuth, once in the browser	Listed by OpenAI after review; build the upload with openai/build-zip.sh (openai/README.md)

Offload: move a coding task into your box and back

Going offline in the middle of a task? In Claude Code with the plugin, /simular-box:offload hands the task to a fresh Claude Code (or Codex, Cursor) session in your box, which keeps working while you are away; /simular-box:back brings its commits and its written hand-over home and merges them. Any other agent or a plain terminal uses npx @simular-ai/box offload and npx @simular-ai/box back. Setup and details: the CLI's README.

Adding an agent

Add a folder named after the agent with its own manifest, MCP config and, where the agent supports skills, a copy of claude/skills/box/SKILL.md. Point it at https://mcp.box.simular.ai/mcp. Use OAuth sign-in where the agent supports it; otherwise read a personal key from an environment variable or the agent's own credentials store, never from a file in the package. Add a row above.

Releasing

• claude/: bump version in claude/.claude-plugin/plugin.json. Claude Code doesn't auto-update third-party marketplaces: users get it with /plugin marketplace update simular-box and /plugin update simular-box@simular-box, or with npx @simular-ai/box connect.
• openclaw/: bump version in openclaw/package.json and openclaw/openclaw.plugin.json, then npm run build and clawhub package publish . from openclaw/.
• dsh/: bump version in dsh/package.json, then push a tag dsh-vX.Y.Z. The release workflow attaches dsh-box.tgz.
• openai/: bump version in openai/plugin.json and publication.release_notes, run openai/build-zip.sh, upload the ZIP at platform.openai.com/plugins.
• hermes/: bump version in hermes/plugin.json. Users copy the folder by hand until box is in the Hermes plugin catalog.
• The Claude plugin's CLI pin: since 1.0.0, @simular-ai/box on npm is the Rust CLI released from simular-ai/box-cli. To move the plugin to a new CLI release, change the exact pin npx -y @simular-ai/box@X.Y.Z in claude/skills/box-offload/SKILL.md and bump version in claude/.claude-plugin/plugin.json in one PR (CI fails unless every pin under claude/ names the same exact version and that version is on npm; never a range, because the Claude directory review requires that what runs is what it read).
• The box CLI (@simular-ai/box on npm) is released from simular-ai/box-cli, not from here. e2e/ tests the pinned version against each real client (versions in e2e/clients.json); see .github/workflows/ci.yml.