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cybersecurity

OSS-only security for OWASP Top 10, pentest, vuln testing (XSS, SSRF, CSRF, business-logic, Host header), threat modeling (STRIDE, ATT&CK), Sigma rules, SAST, code audit, AI/LLM red-team, or replacing paid tools (Burp, Nessus, Splunk) with OSS.

59

Quality

74%

Does it follow best practices?

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SecuritybySnyk

Low

Low-risk findings worth noting

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tessl review fix ./plugins/cybersecurity/skills/cybersecurity/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

77%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.

The body is a well-engineered router/dispatcher skill: the authorization gate workflow and progressive-disclosure structure are exemplary, with explicit checkpoints, refusal paths, and a real, verifiable bundle layout. Its main cost is token redundancy — the OSS-only pledge, dot routing graph, and quick-reference table substantially duplicate content already present in the Overview and routing table.

Suggestions

Cut the standalone 'OSS-only pledge' section — it repeats the Overview's paid-tools paragraph nearly verbatim; one statement suffices.

Drop the dot digraph in favor of the routing table alone (or vice versa) — they encode the same decision flow twice in ~40 extra lines.

Merge the 'Quick reference' table into the routing table (add Track/Capability columns there) instead of listing all 15 references twice.

DimensionReasoningScore

Conciseness

The body avoids explaining concepts Claude already knows, but carries notable redundancy: the 'OSS-only pledge' section repeats the Overview's paid-tools sentence nearly verbatim ("Paid tools (Burp Suite, Nessus, Splunk, CrowdStrike, SonarQube, DOM Invader, Hackvertor) appear only as 'if you already have it' notes"), the ~40-line dot routing graph duplicates the routing table, and the 'Quick reference' table re-lists all 15 references already enumerated in the routing table. This fits 'mostly efficient but includes some unnecessary explanation or could be tightened' (3) better than 4, where only minor instances would need trimming.

3 / 5

Actionability

Guidance is highly concrete and executable for an instruction-only skill: a numbered dispatch contract pinning exact model tiers ("preferred `gpt-5.6 sol` (pinned); fallback `claude-opus-4.x max` or `opus 5 max`"), a routing table mapping task phrasing to exact reference paths, and explicit ack semantics ("Ack for `staging.example.com` does not authorize `prod.example.com`"). It stops short of 5 because the fan-out section depends on an external convention ("per `superpowers:dispatching-parallel-agents`") not present in the bundle, and the threat-model caveat in gate item 5 ('NOT defense in depth...') is analysis commentary rather than instruction.

4 / 5

Workflow Clarity

The multi-step orchestration is clearly sequenced with explicit validation checkpoints: the authorization gate fires before dispatch ('The gate is safety-critical and runs in main context first'), ack must precede any live-target action ('Proceed only after ack. No ack → no live-target action'), scope changes force re-confirmation, sub-agents refuse on missing ack_state, and there are error-recovery paths ('If the user declines... the orchestrator stops, explains why, and offers Track A alternatives') plus checklists ('Common mistakes', 'Never do'). This matches the 5 anchor: clear sequence, explicit validation, feedback loops, and checklists — the batch fan-out is also gated up front, so the destructive/batch cap does not apply.

5 / 5

Progressive Disclosure

SKILL.md is a pure router: all 15 referenced files (`references/authorization-disclaimer.md` through `references/aradotso-ai-security.md`) exist in the bundle, each is signaled with explicit 'SEE: references/<doc>.md' pointers, and cross-links inside references point only to siblings at the same tier (one level deep, no nested chains). The body explicitly forbids inlining reference bodies ('The main context never inlines a reference doc's body') and provides a quick-reference index table, matching the 5 anchor for clear, well-signaled, one-level-deep navigation.

5 / 5

Total

17

/

20

Passed

Description

62%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.

The description is dense with natural, specific security trigger terms and clearly signals an OSS-only offensive/testing niche. Its main weaknesses are the complete absence of a 'Use when...' trigger clause and unaddressed overlap with the repo's five existing defensive plugins.

Suggestions

Add an explicit 'Use when...' clause, e.g. 'Use when testing for vulnerabilities, threat-modeling a feature, auditing code for security flaws, or replacing a paid security tool with an OSS alternative.'

Signal the find-vs-fix split in the description to reduce conflict with the defensive plugins, e.g. 'finds and analyzes vulnerabilities (for fixes, see the defensive plugins)' instead of bare 'XSS, SSRF, CSRF'.

Add a few natural synonym triggers users actually say — 'security audit', 'ethical hacking', 'vulnerability assessment' — to improve trigger recall.

DimensionReasoningScore

Specificity

The description lists many concrete capability areas — "pentest, vuln testing (XSS, SSRF, CSRF, business-logic, Host header), threat modeling (STRIDE, ATT&CK), Sigma rules, SAST, code audit, AI/LLM red-team, or replacing paid tools (Burp, Nessus, Splunk) with OSS" — which matches the anchor 'lists several specific actions; minor gaps in coverage'. It falls short of the 5 anchor because capabilities are enumerated as noun phrases rather than explicit actions (the verbs 'analyze, test, and harden' appear only in the body, not the description), so the 'what it does' is partly implied.

4 / 5

Completeness

The 'what' is clear (OSS-only security skill covering the listed domains), but there is no 'Use when...' clause or equivalent explicit trigger guidance, so per the judging guidelines completeness is capped at 3 ('what' clear, 'when' missing or only weakly implied by the domain list).

3 / 5

Trigger Term Quality

Trigger coverage is strong and natural: users would genuinely say "OWASP Top 10", "pentest", "XSS", "SSRF", "CSRF", "threat modeling", "STRIDE", "code audit", "Sigma rules", and tool names "Burp, Nessus, Splunk". This fits 'good keyword coverage; a few natural terms missing' (4) rather than 5, since common variations like 'ethical hacking', 'security audit/review', 'vulnerability assessment', and 'web app security' are absent.

4 / 5

Distinctiveness Conflict Risk

The offensive/testing framing ("pentest", "vuln testing", "red-team") is somewhat distinct, but terms like "XSS", "CSRF", and "code audit" overlap heavily with this repo's existing defensive plugins (xss-prevention, csrf-protection, etc.) and the description gives no signal distinguishing finding-vs-fixing. This matches anchor 3, 'somewhat specific but could still overlap with similar skills', rather than 4 because the overlap with closely related skills is more than minor.

3 / 5

Total

14

/

20

Passed

Validation

87%

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

Validation — 14 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_version

'metadata.version' is missing

Warning

metadata_field

'metadata' should map string keys to string values

Warning

Total

14

/

16

Passed

Repository

secondsky/claude-skills

Path

plugins/cybersecurity/skills/cybersecurity/SKILL.md

Reviewed

Table of Contents

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