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isms-audit-expert

Information Security Management System (ISMS) audit expert for ISO 27001 compliance verification, security control assessment, and certification support. Use when the user mentions ISO 27001, ISMS audit, Annex A controls, Statement of Applicability (SOA), gap analysis, nonconformity management, internal audit, surveillance audit, or security certification preparation. Helps review control implementation evidence, document audit findings, classify nonconformities, generate risk-based audit plans, map controls to Annex A requirements, prepare Stage 1 and Stage 2 audit documentation, and support corrective action workflows.

93

1.25x
Quality

90%

Does it follow best practices?

Impact

97%

1.25x

Average score across 6 eval scenarios

SecuritybySnyk

Passed

No findings from the security scan

The canonical home for this skill is isms-audit-expert in alirezarezvani/claude-skills

SKILL.md
Quality
Evals
Security

Quality

Content

85%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A well-organized, lean operational playbook with strong sequencing and explicit validation checkpoints throughout. Its critical flaw is that every cross-file reference — three reference documents and the audit scheduler script — points to files missing from the bundle, breaking progressive disclosure and undermining the otherwise executable guidance.

Suggestions

Ship the referenced bundle files (references/iso27001-audit-methodology.md, references/security-control-testing.md, references/cloud-security-audit.md, scripts/isms_audit_scheduler.py) or remove the references — every cross-file link in SKILL.md currently points to a nonexistent file.

Inline a minimal self-contained version of the control-testing procedure in SKILL.md so the core workflow remains usable when reference files are unavailable.

Verify the documented script flags (the table shows --format markdown while the example shows --output audit_plan.json) against the script's actual CLI once it exists.

DimensionReasoningScore

Conciseness

The body is composed almost entirely of dense tables, numbered procedures, and templates with zero concept-explanation padding; it assumes Claude's competence and every section carries operational specifics (frequencies, SLA response times, sample checklists).

5 / 5

Actionability

Provides concrete script commands ("python scripts/isms_audit_scheduler.py --year 2025 --format markdown"), a fill-in finding documentation template, and severity/response-time tables. However, the commands target a script that is not present in the bundle, and detailed testing procedures are deferred to a reference file that also does not exist, so the guidance cannot be fully executed as shipped.

4 / 5

Workflow Clarity

Every major workflow ends with an explicit bolded validation checkpoint ("Validation: Audit plan covers all Annex A controls", "Validation: All documentation received and reviewed before opening meeting", "Validation: Root cause addressed, recurrence prevented"), plus Stage 1/Stage 2 checklists and a corrective-action verification loop — matching the top anchor's pattern of validation steps, checklists, and feedback loops.

5 / 5

Progressive Disclosure

In-file structure is good (TOC, clear sections, references clearly signaled and one level deep), but the actual bundle contains no references/ or scripts/ directories — all four referenced files (iso27001-audit-methodology.md, security-control-testing.md, cloud-security-audit.md, isms_audit_scheduler.py) are dead links, so cross-file navigation is entirely nonfunctional.

3 / 5

Total

17

/

20

Passed

Description

96%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong description: third-person voice, a clear domain framing, a comprehensive set of concrete capabilities, and an explicit 'Use when' clause with natural trigger terms. The only weakness is a few generic compliance terms that could collide with non-ISO-27001 audit skills.

DimensionReasoningScore

Specificity

Lists seven-plus concrete actions ("review control implementation evidence, document audit findings, classify nonconformities, generate risk-based audit plans, map controls to Annex A requirements, prepare Stage 1 and Stage 2 audit documentation, support corrective action workflows") — comprehensive coverage with no vague filler.

5 / 5

Completeness

Explicitly answers both 'what' (compliance verification, control assessment, certification support with a detailed action list) and 'when' ("Use when the user mentions ISO 27001, ISMS audit, Annex A controls…") with concrete trigger phrases.

5 / 5

Trigger Term Quality

"ISO 27001, ISMS audit, Annex A controls, Statement of Applicability (SOA), gap analysis, nonconformity management, internal audit, surveillance audit, security certification preparation" comprehensively covers the natural phrases a user would say when needing this skill.

5 / 5

Distinctiveness Conflict Risk

The ISO 27001/ISMS audit niche is clear and mostly distinct, but generic terms in the use-when list ("gap analysis", "internal audit", "security certification preparation") also apply to other compliance frameworks (SOC 2, ISO 9001), creating overlap risk slightly beyond 'minimal'.

4 / 5

Total

19

/

20

Passed

Validation

81%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 13 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

relative_links

Relative link issues: 4 missing

Warning

referenced_paths_exist

Referenced path issues: 7 missing

Warning

Total

13

/

16

Passed

Repository

alirezarezvani/claude-skills

Path

.gemini/skills/isms-audit-expert/SKILL.md

Reviewed

Table of Contents

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