iso-27001

iso-27001 is a skill for Claude Code, Codex from grcwarlock/compliance-as-code. It costs 72 tokens per session (823 once invoked), scanned A, original, MIT.

An engineering-focused guide for implementing ISO/IEC 27001:2022, an information-security standard used to manage risks and prepare for certification audits. It treats security policies, risks, controls, and evidence as data and working systems.

In plain words
What is it for?
Use it to design an information security management system, map controls, maintain risk registers, instrument Annex A controls, and build evidence pipelines for Stage 1 and Stage 2 audits.
Why use it?
It helps teams avoid maintaining security documentation only in stale spreadsheets or documents. It supports continuous evidence collection instead of last-minute audit preparation.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/grcwarlock/compliance-as-code/iso-27001
Any agent
npx skills add grcwarlock/compliance-as-code --skill iso-27001
Clone the repo
git clone --depth 1 https://github.com/grcwarlock/compliance-as-code

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for iso-27001

README.md
[![agentmods](https://agentmods.dev/badge/skills/grcwarlock/compliance-as-code/iso-27001.svg)](https://agentmods.dev/skills/grcwarlock/compliance-as-code/iso-27001)
Your own site
<a href="https://agentmods.dev/skills/grcwarlock/compliance-as-code/iso-27001"><img src="https://agentmods.dev/badge/skills/grcwarlock/compliance-as-code/iso-27001.svg" alt="Measured on agentmods" height="20"></a>
Per session 72 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 823 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00072 $0.00823
Opus 5 $0.00036 $0.00411
Sonnet 5 $0.00014 $0.00165
Haiku 4.5 $0.00007 $0.00082

Measured 5d ago against content hash fa2df55cf164, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

iso-27001 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 5d 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.

skills/iso-27001/SKILL.md · 49 lines

How it starts

The opening of the file, as written. The whole thing — 49 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ISO 27001 Skill (engineer-voice)

You are an expert on ISO/IEC 27001:2022 implementation from an engineering perspective. You help engineers and security teams build an ISMS that runs on systems and code — not Word documents that go stale between annual audits.

When to use

  • Designing an ISMS so its artifacts (risk register, Statement of Applicability, evidence) are queryable data rather than PDFs
  • Instrumenting Annex A controls so evidence is generated by normal operation
  • Mapping existing controls (often built for SOC 2 first) onto Annex A 2022
  • Preparing for Stage 1 (documentation review) and Stage 2 (effectiveness) certification audits
  • Maintaining the ISMS continuously, not in pre-audit fire drills

Core knowledge (load on demand)

  • Annex A engineer's view (4 themes, 93 controls) — see references/annex-a-engineer-view.md
  • ISMS-as-code (Clauses 4 through 10 implemented as systems and pipelines) — see references/isms-as-code.md
  • Risk register schema — see references/risk-register-schema.md
  • Evidence pipeline design — see references/evidence-pipeline.md

Working style

  1. Cite Annex A controls precisely (e.g., A.5.15 Access control, A.8.2 Privileged access rights). Annex A 2022 has 93 controls grouped into 4 themes (Organisational, People, Physical, Technological).
  2. Treat ISMS artifacts as data. The risk register is a typed list with referential integrity. The Statement of Applicability is a join of Annex A controls × applicability decisions × evidence pointers. Do not accept "in a Word doc" as the system of record.
  3. Reuse ruthlessly across frameworks. If the user already runs SOC 2, most CC6/CC7 evidence covers Annex A access and operations controls — surface the mapping rather than ask them to redo work.
  4. Anchor risk treatment to evidence. Every accepted, mitigated, or transferred risk must point to a control, and every control must point to an evidence source.
  5. Route certification work out. A certification body (UKAS-accredited, ANAB-accredited, etc.) issues the certificate. Recommend involving them once internal audit and management review records exist.

Read the full file on GitHub · 49 lines

Files

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.

Changes

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.

  1. 5d ago First seen · 49 lines · 72 tokens per session scan A fa2df55cf164

Subscribe to this mod's changes

iso-27001 is a skill published in the GitHub repository grcwarlock/compliance-as-code (2 stars, last pushed 4mo ago), licensed MIT. It adds 72 tokens to every session and 823 once invoked, about $0.0004 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.

Related

Other skills, from other repositories

GRC & Compliance

Governance, risk, and compliance — risk assessment and scoring, control mapping across NIST CSF 2.0 / ISO 27001:2022 / SOC 2 / CIS Controls v8, gap analysis, audit evidence preparation, and security policy generation.

Masriyan/Claude-Code-CyberSecurity-Skill · 58 tokens

trestle-compliance-pipeline

Use this skill for end-to-end compliance pipelines with Compliance Trestle. Topics include GRC personas, artifact ownership, multi-repository coordination, two-phase component definition authoring, CI/CD pipeline integration, and the Compliance-to-Policy (C2P) bridge. Use it for compliance pipelines, personas…

oscal-compass-lab/compliance-trestle-skills · 103 tokens

trestle-control-implementation

Use this skill to write control implementation responses, rules, parameters, and component-level responses. Use it for inheritance and leveraged SSPs in Compliance Trestle. Use it for control responses, implementation status, rules, parameters, component definitions, SSP implementation details, or compliance…

oscal-compass-lab/compliance-trestle-skills · 64 tokens

trestle-task-system

Use this skill for the Compliance Trestle task system for data conversion and transformation. Use it for CSV import, XLSX import, XCCDF results, Tanium results, and CIS benchmarks. Use it for config.ini task configuration, trestle tasks, or conversion of scan results to assessment results.

oscal-compass-lab/compliance-trestle-skills · 68 tokens

trestle-validation

Use this skill for Compliance Trestle validation, common errors, and troubleshooting. Use it for validation errors, trestle validate failures, and OSCAL schema checks. Use it to fix compliance document issues or to troubleshoot trestle problems.

oscal-compass-lab/compliance-trestle-skills · 54 tokens

trestle-authoring-workflow

Use this skill for the Compliance Trestle authoring workflow. The workflow is the generate-edit-assemble cycle that converts OSCAL documents to markdown and back. Use it for authoring catalogs, profiles, SSPs, or component definitions. Use it for editing control markdown, YAML headers, or the roundtrip workflow…

oscal-compass-lab/compliance-trestle-skills · 76 tokens