What this skill does
Use CodexBar CLI local cost usage to summarize per-model usage for Codex or Claude, including the current (most recent) model or a full model breakdown. Trigger when asked for model-level usage/cost data from codexbar, or when you need a scriptable per-model summary from codexbar cost JSON.
Model Usage is part of the Developer Tools category — developer tools that help your agent write, review, debug, and ship code. You can install it on its own or alongside other developer tools skills from the OpenClaw catalog.
How to install Model Usage
The easiest path is via the OpenClaw Easy desktop app — one click, no terminal required:
- Download OpenClaw Easy for macOS or Windows (free, one-click installer, ~30 seconds).
- Open the in-app Skills panel.
- Search for
model-usageand click Install. - The skill activates automatically when an incoming message matches its description.
Install from the command line
If you already run the OpenClaw CLI, add Model Usage with a single command:
openclaw skills add model-usage
This pulls model-usage from ClawHub and installs it into ~/.openclaw/skills/model-usage/. Restart the OpenClaw gateway afterwards so the new skill is discovered.
How to use Model Usage
Once installed, Model Usage activates on its own: when an incoming message on WhatsApp, Telegram, Slack, Discord, Feishu or Line matches the skill's description, your OpenClaw agent loads it and runs the workflow. You can also trigger it explicitly by describing the task in chat. No extra configuration is required after install.
Manual install (advanced)
If you prefer manual installation:
- Click the Download .zip button above to grab
model-usage-1.0.0.zipdirectly from our S3 mirror. - Unzip into
~/.openclaw/skills/model-usage/(create the directory if it does not exist). - Restart OpenClaw Easy (or the OpenClaw CLI gateway) so the new skill is discovered.
Frequently asked questions
How do I install Model Usage?
Install Model Usage in the OpenClaw Easy desktop app by opening the Skills panel, searching for model-usage, and clicking Install. From a terminal you can run: openclaw skills add model-usage. Either way the skill is placed in ~/.openclaw/skills/model-usage/.
Is Model Usage free?
Yes. Model Usage is free and open-source, distributed under the Apache-2.0 license through ClawHub. No account or payment is required to download or run it.
What does Model Usage do?
Use CodexBar CLI local cost usage to summarize per-model usage for Codex or Claude, including the current (most recent) model or a full model breakdown. Trigger when asked for model-level usage/cost data from codexbar, or when you need a scriptable per-model summary from codexbar cost JSON.
Related: more developer tools skills
If Model Usage looks useful, you may also want to check out other developer tools skills in the OpenClaw catalog:
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Free, open-source · Apache-2.0 · Works with Claude, ChatGPT, Gemini, or local Ollama models