Install
AgentHub ships as a single marketplace plugin that works on both Claude Code and OpenAI Codex. Pick your platform below.
Pick your platform
VS Code / Cursor extension
- Press / in the Claude Code sidebar → Manage Plugins → Marketplace
- Paste
https://github.com/SKB3002/agenthuband confirm - Go to Plugins, search hub, and click Install
- Press Ctrl+Shift+P → Reload Window
Run /hub:help to verify — it will list all 17 commands, 20 agents, and 42 skills. Or press / and manually check the newly loaded commands in the palette.
Updating
Open Manage Plugins → Marketplace and click Update next to agenthub. Reload the window to pick up the new release.
CLI install
# 1. Install the Codex CLI (if you haven't already)
npm install -g @openai/codex
# 2. Register the AgentHub marketplace (either command works)
codex plugin marketplace add https://github.com/SKB3002/agenthub
# or the older short form:
codex marketplace add https://github.com/SKB3002/agenthub
# 3. Start Codex in PowerShell (or your terminal)
codexInside Codex: type /plugin → search hub → Install.
Verify
Type @hub help in the composer. Codex should return the full capability index.
Always use@hubin Codex, never/hub:. The/prefix is reserved for Codex built-ins, so/hub:debugwill be rejected. Always type@hub debug,@hub plan, etc.
Updating
Re-run codex plugin marketplace add https://github.com/SKB3002/agenthub to pull the latest release manifest, then re-install from /plugin.
Platform differences at a glance
| Thing | Claude Code | OpenAI Codex |
|---|---|---|
| Invocation | /hub:<command> | @hub <workflow> |
| Manifest | .claude-plugin/plugin.json | plugins/hub/.codex-plugin/plugin.json |
| Session protocol | claude/PROTOCOL.md | plugins/hub/AGENTS.md |
| Skills shared? | Yes — all 42 skills live in skills/ and mirror into the Codex plugin. | |
Troubleshooting
Claude Code: “invalid manifest” on install
Make sure you're on the latest release. Pre-v0.4.4 manifests included fields Claude Code no longer accepts. Update the marketplace and retry.
Codex: 0 skills / 0 agents after install
Pre-v0.4.4 shipped the Codex plugin with a Windows junction for the skills folder, which didn't replicate over git. v0.4.4+ vendors all 42 skills + 20 agents + 17 commands as real files inside the plugin. Run codex marketplace add https://github.com/SKB3002/agenthub again to pull the fix.
Codex suggests /hub: commands back to me
Update to the latest release — v0.4.4+ explicitly tells the model to translate /hub: mentions (which appear in shared skill files) to @hub when replying to users.