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 GRCEngClub/claude-grc-engineering --skill iso-expertgit clone --depth 1 https://github.com/GRCEngClub/claude-grc-engineeringWrote 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/grcengclub/claude-grc-engineering/iso-expert)<a href="https://agentmods.dev/skills/grcengclub/claude-grc-engineering/iso-expert"><img src="https://agentmods.dev/badge/skills/grcengclub/claude-grc-engineering/iso-expert/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/grcengclub/claude-grc-engineering/iso-expert"><img src="https://agentmods.dev/badge/skills/grcengclub/claude-grc-engineering/iso-expert.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 | $0.00033 | $0.00310 |
| Opus 5 | $0.00016 | $0.00155 |
| Sonnet 5 | $0.00007 | $0.00062 |
| Haiku 4.5 | $0.00003 | $0.00031 |
Grade A, and why
iso-expert 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 7d 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.
The source is not reproduced here
A licence we could not identify
The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.
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.
- 7d ago First seen · 54 lines · 33 tokens per session scan A 6d600a801946
iso-expert is a skill published in the GitHub repository GRCEngClub/claude-grc-engineering (398 stars, last pushed 4d ago), with no licence file. It adds 33 tokens to every session and 310 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 2026-09-03.
Other skills, from other repositories
fedramp-moderate-baseline
Implements FedRAMP Moderate baseline assessments using NIST SP 800-53 Revision 5 controls—authorization boundary definition, System Security Plan (SSP), Plan of Action and Milestones (POA&M), and continuous monitoring (ConMon)—with Cloud Service Provider (CSP) and agency customer responsibility matrices. Trigger when…
ccpa-cpra-privacy-rights
Implements California Consumer Privacy Act (CCPA) as amended by the California Privacy Rights Act (CPRA)—Cal. Civ. Code §1798.100 et seq.—covering consumer rights to know, delete, correct, opt-out of sale/share, and limit use of sensitive personal information, plus DSAR workflows, privacy notices, and service provider…
cmmc-nist-800-171
Implements CMMC 2.0 Level 2 assessments aligned to NIST SP 800-171 Revision 2 (110 security requirements across 14 families) for Controlled Unclassified Information (CUI) protection in the Defense Industrial Base (DIB), including SPRS score self-assessment, POA&M management, and government contract flow-down…
glba-ffiec-financial-privacy
Implements Gramm-Leach-Bliley Act (GLBA) Safeguards Rule (16 CFR Part 314) and Privacy Rule (16 CFR Part 313) compliance aligned to FFIEC IT Examination Handbook modules for financial institutions—customer information protection, risk assessments, access controls, vendor oversight, and GLBA privacy notices (initial…
hipaa-privacy-minimum-necessary
Implements HIPAA Privacy Rule minimum necessary standard—45 CFR §164.502(b)—plus §164.514 de-identification, Limited Data Sets, and patient rights to access and amend records, with agent prompt minimization, role-based PHI exposure, and integration with the Presidio redaction pipeline. Trigger when designing LLM/agent…
iso27001-annex-a-controls
Implements ISO/IEC 27001:2022 Annex A control assessment—93 controls across Organizational, People, Physical, and Technological themes—covering Statement of Applicability (SoA), risk treatment, and implementation evidence. Trigger when building or auditing an ISMS, mapping Annex A to existing controls, preparing ISO…