Audit Harness Usage
Audit token usage and estimated API-equivalent cost across local agent harness traces from Codex CLI, Claude Code, Gemini CLI, and Cursor usage exports, plus quota-window status from a running Google Antigravity app, IDE, or CLI. Ships a read-only, standard-library Python scanner that normalizes incompatible cache/input/output semantics, deduplicates streaming records, implements CodexBar-derived lineage-aware Codex accounting locally, preserves Cursor list cost separately from charged cost, reports pricing coverage, renders self-contained HTML dashboards with improvement signals, and never copies prompt or response content into output. USE WHEN: the user asks how CodexBar or ccusage-style accounting works; wants token or cost statistics across coding agents; wants to find expensive models, cache efficiency, usage concentration, anomalous spikes, or unpriced models; says "token usage", "agent costs", "CodexBar cost", "Claude usage", "Gemini stats", "Antigravity quota", "Cursor usage export", "compare harnesses", or "what did my agents cost", "HTML usage report", or "usage dashboard". NOT FOR: provider invoices, non-Antigravity subscription quota windows, remote API metering, prompt-content analysis, or scraping credentials.
Security AStatic scan found no risk patternsHow grading works ›
From the source SKILL.md
Treat every number as one of three different things:
What this skill does
Audit Harness Usage is a community-contributed Claude Code skill in the identity-access sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/audit-harness-usage/ and loads when your prompt matches the skill's trigger.
When to invoke it: USE WHEN: the user asks how CodexBar or ccusage-style accounting works; wants token or cost statistics across coding agents; wants to find expensive models, cache efficiency, usage concentration, anomalous spikes, or unpriced models; says "token usage", "agent costs", "CodexBar cost", "Claude usage", "Gemini stats", "Antigravity quota", "Cursor usage export", "compare harnesses", or "what did my agents cost", "HTML usage report", or "usage dashboard". NOT FOR: provider invoices, non-Antigravity subscription quota windows, remote API metering, prompt-content analysis, or scraping credentials.
Who uses this skill
The Audit Harness Usage Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 191,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
How to install
Free
Manual install (2 steps)
mkdir -p ~/.claude/skills/audit-harness-usage
curl -L https://claudskills.com/skills/audit-harness-usage/SKILL.md \
-o ~/.claude/skills/audit-harness-usage/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/audit-harness-usage/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/audit-harness-usage/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\audit-harness-usage\SKILL.md on Windows. See the full install guide for step-by-step instructions.
Telegram
📱 Install from your phone or desktop Telegram
Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →
Pro
One-click install via the desktop app
The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.
Pro
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
Frequently asked questions
How do I install the Audit Harness Usage Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy
SKILL.md from the source repository to
~/.claude/skills/audit-harness-usage/SKILL.md and restart Claude Code. Both flows are detailed at
claudskills.com/install/.
What does the Audit Harness Usage skill do?
Audit token usage and estimated API-equivalent cost across local agent harness traces from Codex CLI, Claude Code, Gemini CLI, and Cursor usage exports, plus quota-window status from a running Google Antigravity app, IDE, or CLI. Ships a read-only, standard-library Python scanner that normalizes incompatible cache/input/output semantics, deduplicates streaming records, implements CodexBar-derived lineage-aware Codex accounting locally, preserves Cursor list cost separately from charged cost, reports pricing coverage, renders self-contained HTML dashboards with improvement signals, and never copies prompt or response content into output. USE WHEN: the user asks how CodexBar or ccusage-style accounting works; wants token or cost statistics across coding agents; wants to find expensive models, cache efficiency, usage concentration, anomalous spikes, or unpriced models; says "token usage", "agent costs", "CodexBar cost", "Claude usage", "Gemini stats", "Antigravity quota", "Cursor usage export", "compare harnesses", or "what did my agents cost", "HTML usage report", or "usage dashboard". NOT FOR: provider invoices, non-Antigravity subscription quota windows, remote API metering, prompt-content analysis, or scraping credentials.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Audit Harness Usage skill?
Use Audit Harness Usage when your Claude Code task falls under the Security category — specifically in the identity access area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Audit Harness Usage" or describe the task and let Claude pick). Browse related skills at
/category/security/.
What is a Claude Code skill and how does the Audit Harness Usage skill fit in?
A Claude Code skill is a
SKILL.md file that lives under
~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Audit Harness Usage is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at
/learn/what-is-a-claude-skill/.
Attribution & license
Cite this skill
If you reference this skill in a blog post, paper, or documentation, you can cite it as:
APA
broomva. (2026). Audit Harness Usage [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/audit-harness-usage/
BibTeX
@misc{audit-harness-usage-2026,
author = {broomva},
title = {Audit Harness Usage [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/audit-harness-usage/}
}Embed this skill
Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →
Badge
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Security scan
Grade A · scanned 2026-08-26 — free static scan against the OWASP Agentic Skills Top 10.
The scan flagged 1 of 10 categories (network), including lower-severity patterns. Patterns shown inside code fences are weighted as examples rather than instructions — read the grading methodology for what this does and does not guarantee.
- ✓ Prompt injection
- ✓ Data exfiltration
- ✓ Supply chain
- ✓ Reverse shell
- ✓ Credentials
- ✓ Execution
- ✓ Filesystem
- ✓ Persistence
- ✓ Obfuscation
- ⚠ Network
Show this grade on your repo (click to copy):
[](https://claudskills.com/skills/audit-harness-usage/#security)
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Browse all Security skills in the ClaudSkills registry, or explore these other picks from the same category:
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