Plugins for Coding Agents
Install the official skills as plugins through the Claude Code, Cursor, and Codex marketplaces.
Overview
Confident AI's Agent Skills also ship as plugins — the packaging format Claude Code, Cursor, and Codex use to distribute skills through their plugin marketplaces. A plugin is a thin wrapper: a manifest in the SDK repository that points at its skills/ folder, so installing the plugin installs every skill in the repo at once and your client keeps it updated through its marketplace.
If you already installed the skills individually (for example with npx skills add), you don't need the plugins too — they deliver the same SKILL.md files. Plugins are the better choice when you want one-command installs, team-wide distribution, or your client's built-in update flow.
Available Plugins
| Plugin | Repository | Bundles | Claude Code | Cursor | Codex |
|---|---|---|---|---|---|
confident-trace | confident-ai/confident-trace | confident-tracing, confident-otel | Yes | Yes | Yes |
confident-client | confident-ai/confident-client | confident-client | Yes | Yes | Yes |
deepeval | confident-ai/deepeval | deepeval plus legacy tracing and OTel skills | Yes | Yes | No |
Each repository doubles as its own plugin marketplace — confident-trace-plugins for Confident Trace, deepeval-plugins for DeepEval, and confident-ai-plugins for the Admin SDK — so you add the repo as a marketplace source once, then install by plugin name.
Claude Code
Add the repo as a marketplace, install the plugin, and reload:
/plugin marketplace add confident-ai/confident-trace
/plugin install confident-trace@confident-trace-plugins
/reload-plugins/plugin marketplace add confident-ai/deepeval
/plugin install deepeval@deepeval-plugins
/reload-plugins/plugin marketplace add confident-ai/confident-client
/plugin install confident-client@confident-ai-plugins
/reload-pluginsRun /plugins afterwards to confirm the plugin appears under your installed plugins.
Cursor
All three repositories carry a Cursor plugin manifest (.cursor-plugin/plugin.json). Install one by pasting its repository URL into the plugin search in Cursor's Customize panel, or from the chat with the same marketplace commands Claude Code uses:
/plugin marketplace add https://github.com/confident-ai/confident-traceSwap in the DeepEval or Confident Client repository URL for those plugins. Once installed, Cursor discovers every skill in the repo's skills/ folder automatically — the agent activates them on matching prompts, or you can invoke one explicitly by typing / followed by the skill name.
Codex
The confident-trace repository ships a Codex plugin manifest (.codex-plugin/plugin.json) that points at its skills/ folder, so Codex discovers both tracing skills when the plugin is installed. You can also copy a skill folder directly into .agents/skills/:
git clone https://github.com/confident-ai/confident-trace
mkdir -p .agents/skills/
cp -r confident-trace/skills/confident-tracing .agents/skills/The confident-client repository ships its own Codex marketplace file (.agents/plugins/marketplace.json). Register the repo as a marketplace source, then install by name — or browse for it in the /plugins picker inside the Codex TUI:
codex plugin marketplace add confident-ai/confident-client
codex plugin add confident-clientThe DeepEval repo doesn't ship a Codex plugin yet — install its evaluation skill on Codex with the Skills CLI:
npx skills add confident-ai/deepeval --skill "deepeval"FAQs
I already installed the skills — do I need the plugins too?
No. Plugins deliver the same SKILL.md files the Skills CLI does, so
installing both just duplicates them. Pick plugins for one-command
installs and marketplace updates; pick the Skills CLI for installing a
single skill or for clients without a plugin system.
How do plugin updates work?
Your client tracks the repository as a marketplace source, so updates flow
through its own mechanism — Claude Code and Cursor refresh from the
marketplace, and Codex re-fetches with codex plugin marketplace upgrade.
Skills installed by copy or CLI are static snapshots by comparison.
Why isn't there a Codex plugin for deepeval?
The DeepEval repo doesn't ship a Codex plugin manifest yet — only
confident-trace and confident-client do. On Codex, install the DeepEval skill with the
Skills CLI (npx skills add confident-ai/deepeval --skill "deepeval")
until it lands.
Is installing straight from a GitHub repo safe?
Installing from a repo URL means trusting that repo rather than a curated marketplace review. Here the repos are the same public, Apache-2.0 Confident AI repositories the SDKs ship from, and every instruction the skills give your agent is readable in the repo before you install.
Next Steps
A plugin only delivers the skills — each skill still has its own prerequisites (the confident-trace, deepeval, or confidentai package, and the right API key). See the individual skill pages for what to set up and example prompts:
Agent Skills Overview
What each skill does, which API key it needs, and every install method side by side.
MCP Server
Pair the plugins with live access to your project's traces, datasets, and evals.
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