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CodexBar read. Provider usage, limits, credits, config health. JSON. No writes.
Passed 15 of 18 test cases with the skill, and 7 of 18 without it.
and 6 more in the full report
9 fixed9 passed either way4 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 9 test cases the skill fixed. Same model, same prompt, with and without the skill.
If `CODEX_HOME` is not set in my shell environment, what default path does the wrapper script construct to find `$skill/scripts/codexbar`?
| Checked | Without skill | With skill |
|---|---|---|
| Identifies `$HOME/.codex/skills/codexbar` as the default base path. | Missed | Passed |
The instructions your model reads when the skill loads.
Read CodexBar. Never mutate config/auth.
skill="${CODEX_HOME:-$HOME/.codex}/skills/codexbar"
"$skill/scripts/codexbar" doctor
"$skill/scripts/codexbar" providers
"$skill/scripts/codexbar" usage
"$skill/scripts/codexbar" usage --provider codex
"$skill/scripts/codexbar" usage --all
All stdout: JSON. Upstream CodexBar shape kept. Less drift, fewer tokens.
doctor when install/config unknown.usage reads enabled providers. Prefer this.usage --provider ID reads one provider.usage --all expensive; use only when needed.--include-identities only when user explicitly needs them.CODEXBAR_TIMEOUT (default 120 seconds).Auto-find: CODEXBAR_BIN, PATH, app bundle, Homebrew cask. If missing: open CodexBar, Preferences > Advanced > Install CLI; or set CODEXBAR_BIN.
Each stdout/stderr stream capped at 1 MiB while fully drained. Timeout kills process group.
test cases passed, vs 7 / 18 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.