Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add mcw-wellness/ai-dev-blueprint --skill ai-usagegit clone --depth 1 https://github.com/mcw-wellness/ai-dev-blueprintWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/mcw-wellness/ai-dev-blueprint/ai-usage)<a href="https://agentmods.dev/skills/mcw-wellness/ai-dev-blueprint/ai-usage"><img src="https://agentmods.dev/badge/skills/mcw-wellness/ai-dev-blueprint/ai-usage/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/mcw-wellness/ai-dev-blueprint/ai-usage"><img src="https://agentmods.dev/badge/skills/mcw-wellness/ai-dev-blueprint/ai-usage.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00080 | $0.00555 |
| Opus 5.5 | $0.00032 | $0.00222 |
| Sonnet 5.5 | $0.00016 | $0.00111 |
| Haiku 4.5 | $0.00008 | $0.00056 |
Grade A, and why
ai-usage scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
AI usage across profiles
Run:
python3 ~/.claude/skills/ai-usage/ai-usage.py
It discovers every Claude profile (~/.claude, ~/.claude-*) and Codex profile (~/.codex,
~/.codex-*) on this machine and, per profile, prints: logged-in email and plan, login expiry,
and each limit's % used with its reset time (session 5h, weekly, per-model weekly such as Fable,
Codex primary/secondary windows, credits, extra usage).
Answering
- Answer the question asked from the output — don't paste the whole dump. A table per product (profile · account · used % · resets · login expiry) is usually right.
- Surface what needs action: a limit ≥ 90% or reached, an expired or missing login, a login expiring within a week.
- Point out profiles that share one account (same email) — they share one quota, so "switching profile" to escape a limit won't work.
- "Token consumption" here means % of each limit used; raw per-token counts are not available from this script.
Behaviour and limits
- Read-only. It never refreshes tokens — refreshing would rotate them out from under the CLI.
An expired access token is reported with the fix (run
claude/codexin that profile once). - Unofficial endpoints (
api.anthropic.com/api/oauth/usage,chatgpt.com/backend-api/wham/usage) — the same ones/usageand CodexBar use. If they change, the script printsERRORfor the profile and exits 1; report that rather than guessing numbers. - macOS only for Claude: credentials are read from the Keychain item
Claude Code-credentials[-<sha256(config dir)[:8]>]. Codex homes needcli_auth_credentials_store = "file"(credentials inauth.json). - First run may trigger a Keychain access prompt per profile — "Always Allow".
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 44 lines · 80 tokens per session scan A dcb19ec3bfc2
ai-usage is a skill published in the GitHub repository mcw-wellness/ai-dev-blueprint (2 stars, last pushed 2d ago), licensed MIT. It adds 80 tokens to every session and 555 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-11-09.
ai-usage compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| ai-usagemcw-wellness/ai-dev-blueprint | Skill | 2 | 2d ago | MIT | A | 80 | Claude Code |
| orbit-notionnexu-io/open-design | Skill | 107k | today | Apache-2.0 | A | 117 | Claude Code, Codex |
| agentmailpaperclipai/paperclip | Skill | 113k | today | MIT | A | 30 | Claude Code, Codex |
| rowboat-spacesrowboatlabs/rowboat | Skill | 18k | today | Apache-2.0 | A | 60 | Claude Code, Codex |
| Cortexdanielmiessler/LifeOS | Skill | 20k | 6d ago | MIT | A | 184 | Claude Code |
| pinchtab-mcppinchtab/pinchtab | Skill | 11k | today | MIT | A | 52 | Claude Code, Codex |
| feishuHmbown/CodeWhale | Skill | 41k | 3d ago | MIT | A | 33 | Claude Code, Codex |