Citadel plugin
An operating layer for Claude Code and Codex: one /do entry point, project memory across sessions, safety hooks, cost telemetry and parallel agents
- 929 ★ on the repository
- Last commit
- MIT
Broad access
Why this level
- Runs step-by-step workflows and hooks that execute commands and modify files in the repository
- Coordinates parallel agents working on the codebase
Install
- Works in
In your terminal, with SkillFoxx CLI
npx skillfoxx add plugins/citadelDetects the agents on your machine, shows the access level and pins the version.
Other ways to install
Access and checks
How we reviewBroad accessThe tool can change data, run commands or handle secrets.
- Runs step-by-step workflows and hooks that execute commands and modify files in the repository
- Coordinates parallel agents working on the codebase
This is third-party code. Review the repository files before installing.
What it does
Citadel installs as a plugin into the Claude Code or Codex marketplace and adds a single /do entry point that parses a request and routes it to the right step-by-step workflow. Project state, plans, execution receipts and session handoffs are stored inside the repository, so the agent keeps context across restarts. The bundle ships dozens of skills, hooks and several MCP servers for codebase memory, state and context compression. Installation is pinned to a specific release and scoped to one repository, and every change is reversible.
Who it is for. For developers on Claude Code or Codex who need project memory, guardrails and coordination of parallel agent work.
Good fit when
- You need to keep project state and plans across agent sessions
- You want a single /do command with verification and resume
- You need to coordinate several agents working in parallel
- You want safety hooks and cost telemetry around your usual agent
Not a fit when
- You need a one-off request without installing a plugin and repo state
- Your agent is neither Claude Code nor Codex
Example request
/do review README.md and suggest fixesLimitations
It needs Claude Code or Codex, Node.js 22 or newer and a git repository. There is no separate npm package; installation goes through the runtime's plugin marketplace and is pinned to a release tag, with a signed release archive for offline install. Citadel state lives inside the repository, so it falls under version control.
How to disable. Remove the plugin via the runtime's plugin command (claude plugin remove citadel or codex plugin remove citadel) and delete the Citadel state directories created in the project.
FAQ
Does it work with Codex, not only Claude Code?
Yes, both runtimes are supported; the install commands differ: for Codex use codex plugin marketplace add and codex plugin add.
Is there an npm package?
No. Install goes through the plugin marketplace pinned to a release tag, with a signed release archive and checksum verification for offline use.
Discussion
No questions or reviews yet.
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Comparison with similar tools
Cards that share the main search query, and how they differ.
| Tool | Official | Repository stars | Main difference |
|---|---|---|---|
| Citadel (this card) | no | 929 | |
| Project Cairn | no | 252 | A skill that has the agent keep a project's log, plan and conclusions in files and move verified lessons into Obsidian, Notion or Lark |
| vibecosystem | no | 547 | a kit of 138 agents |
| Claude Dynamic Workflows on Codex | no | 330 | the /codex-workflows skill |
README in short
The README presents Citadel as an open operating layer on top of Claude Code and Codex. It routes requests through /do, keeps repository state across sessions, coordinates parallel work, applies safeguards and leaves plans, receipts and handoffs as evidence. Installation runs through the runtime's built-in plugin marketplace pinned to the v1.4.3 release, with a detailed offline path that verifies checksums. It spells out a trust boundary: the runtime owns code delivery and execution, Citadel owns project state and recovery. MIT licensed.