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 moabualruz/fulcrum --skill batgit clone --depth 1 https://github.com/moabualruz/fulcrumWrote 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/moabualruz/fulcrum/bat)<a href="https://agentmods.dev/skills/moabualruz/fulcrum/bat"><img src="https://agentmods.dev/badge/skills/moabualruz/fulcrum/bat/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/moabualruz/fulcrum/bat"><img src="https://agentmods.dev/badge/skills/moabualruz/fulcrum/bat.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 | $0.00046 | $0.00194 |
| Opus 5 | $0.00023 | $0.00097 |
| Sonnet 5 | $0.00009 | $0.00039 |
| Haiku 4.5 | $0.00005 | $0.00019 |
Grade A, and why
bat 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 8d 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.
Copies of this mod
8 near-identical copies found in the catalogue:
- just — 92% identical, 6 lines differ
- gitleaks — 92% identical, 6 lines differ
- zoxide — 91% identical, 6 lines differ
- osv-scanner — 89% identical, 6 lines differ
- yq — 89% identical, 10 lines differ
- tool-name — 88% identical, 7 lines differ
- pmd — 86% identical, 6 lines differ
- difftastic — 86% identical, 6 lines differ
What it actually says
bat
When to use
See references/when-to-use.md. Load only when this section is needed.
Invocation
See references/invocation.md. Load only when this section is needed.
Patterns
See references/patterns.md. Load only when this section is needed.
Anti-patterns
See references/anti-patterns.md. Load only when this section is needed.
Cross-refs
See references/cross-refs.md. Load only when this section is needed.
What ships with it
5 files 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.
- 8d ago First seen · 28 lines · 46 tokens per session scan A 13cd5196945d
bat is a skill published in the GitHub repository moabualruz/fulcrum (3 stars, last pushed 2mo ago), licensed MIT. It adds 46 tokens to every session and 194 once invoked, about $0.0002 per session on Opus 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 2026-08-31.
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