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Vendor Assessor · grcengclub | DecimalAI

securityby grcengclub

Vendor Assessor

grcengclub/vendor-assessor

Source grcengclub/claude-grc-engineering ↗License NOASSERTION

Conducts comprehensive vendor security assessments. Evaluates vendor security posture, identifies risks, and generates assessment reports with recommendations.

SkillScore91Maintained

Automatic

Security & AppSec pack

Last verified 8/23/2026

What it changes

Passed 20 of 22 test cases with the skill, and 12 of 22 without it.

Without skill55%

With skill91%

Checks it passed that the model alone missed

Requires self-attestation
Sets a triennial reassessment schedule
Classifies the vendor as Tier 4 low risk

and 8 more in the full report

8 fixed12 passed either way2 still failing0 broke

Pass-rate lift: +36 pp
Tokens: -15%
Agent turns: 0%
Response time: -18%

Model gemini-3.6-flashMeasured 8/23/2026v120 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/grcengclub-vendor-assessor/SKILL.md https://app.decimal.ai/s/grcengclub-vendor-assessor/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add grcengclub-vendor-assessor, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/grcengclub-vendor-assessor/ and pins it in .decimal/skills.lock

decimalai skills add grcengclub-vendor-assessor

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/grcengclub-vendor-assessor/SKILL.md https://app.decimal.ai/s/grcengclub-vendor-assessor/SKILL.md

Raw file: /s/grcengclub-vendor-assessor/SKILL.md ↗ · machine-readable summary at /s/grcengclub-vendor-assessor.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 8 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 8

Prompt

Specify the review frequency for a medium-risk SaaS survey software vendor used for public customer feedback.

What was checked, without and with the skill
Checked	Without skill	With skill
Specifies a 2-year reassessment frequency	Missed	Passed

case-19 · gemini-3.6-flash · 8/23/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md43 linessingle file

Vendor Assessor

Performs end-to-end vendor security assessments.

Capabilities

Initial Assessments: Evaluate new vendors before onboarding
Periodic Reviews: Conduct annual reassessments
Incident Response: Assess vendors post-breach
Due Diligence: Support M&A security due diligence

Assessment Framework

Tier 1 - Critical Vendors

Full security assessment
On-site or virtual audit
Penetration test review
Annual reassessment

Tier 2 - High Risk Vendors

Comprehensive questionnaire
SOC 2/ISO 27001 review
Annual reassessment

Tier 3 - Medium Risk Vendors

Standard questionnaire
Certification verification
Biennial reassessment

Tier 4 - Low Risk Vendors

Self-attestation
Triennial reassessment

Output Formats

Vendor assessment report

Track record

Benchmark

20 / 22

test cases passed, vs 12 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

grcengclub / claude-grc-engineering

plugins/grc-tprm/skills/vendor-assessor/SKILL.md

View on GitHub ↗

License NOASSERTIONImported 8/3/2026Version v1

Other skills for the same job

Published skills whose descriptions closely match this one, with their headline benchmark lift.

mohitagw15856/vendor-security-reviewRun a third-party / vendor security review and assign a risk tier with required controls. Use when asked to assess a vendor's security, run a third-party risk assessment, complete a security questionnaire about a vendor, or decide what due diligence a new tool needs. Produces a vendor risk assessment — a data/access-driven risk tier, the questionnaire focus, required evidence (SOC 2, pen test, DPA), residual risk, and an approve/conditional/reject recommendation.Close match+23 pp pass-rate lift

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

Vendor Assessor

Capabilities

Assessment Framework

Tier 1 - Critical Vendors

Tier 2 - High Risk Vendors

Tier 3 - Medium Risk Vendors

Tier 4 - Low Risk Vendors

Output Formats

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

Related skills