Skills › AI & Agent Engineering › Local & model ops
model-usage
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.
The full skill
—
name: model-usage
description: 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.
metadata:
{
"openclaw":
{
"emoji": "📊",
"os": ["darwin"],
"requires": { "bins": ["codexbar"] },
"install":
[
{
"id": "brew-cask",
"kind": "brew",
"formula": "steipete/tap/codexbar",
"bins": ["codexbar"],
"label": "Install CodexBar (brew cask)",
},
],
},
}
—
# Model usage
## Overview
Get per-model usage cost from CodexBar's local cost logs. Supports "current model" (most recent daily entry) or "all models" summaries for Codex or Claude.
TODO: add Linux CLI support guidance once CodexBar CLI install path is documented for Linux.
## Quick start
1. Fetch cost JSON via CodexBar CLI or pass a JSON file.
2. Use the bundled script to summarize by model.
“`bash
python {baseDir}/scripts/model_usage.py –provider codex –mode current
python {baseDir}/scripts/model_usage.py –provider codex –mode all
python {baseDir}/scripts/model_usage.py –provider claude –mode all –format json –pretty
“`
## Current model logic
– Uses the most recent daily row with `modelBreakdowns`.
– Picks the model with the highest cost in that row.
– Falls back to the last entry in `modelsUsed` when breakdowns are missing.
– Override with `–model <name>` when you need a specific model.
## Inputs
– Default: runs `codexbar cost –format json –provider <codex|claude>`.
– File or stdin:
“`bash
codexbar cost –provider codex –format json > /tmp/cost.json
python {baseDir}/scripts/model_usage.py –input /tmp/cost.json –mode all
cat /tmp/cost.json | python {baseDir}/scripts/model_usage.py –input – –mode current
“`
## Output
– Text (default) or JSON (`–format json –pretty`).
– Values are cost-only per model; tokens are not split by model in CodexBar output.
## References
– Read `references/codexbar-cli.md` for CLI flags and cost JSON fields.