plan-security-audit

plan-security-audit is a skill for Claude Code, Codex from kensaurus/cursor-kenji. It costs 85 tokens per session (1,396 once invoked), scanned A, original, MIT.

A security-audit planning guide based on the OWASP Top 10, a list of common web-application risks, with extra focus on Supabase. It reviews application code, authentication, database access, dependencies, and exposed secrets without changing code.

In plain words
What is it for?
Use it to inventory vulnerabilities, map them to OWASP risks, rank their severity, and create a phased hardening plan.
Why use it?
It helps reveal security weaknesses and organize their fixes before they lead to data exposure, account bypasses, or leaked keys.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to inventory vulnerabilities, map them to OWASP risks, rank their severity, and create a phased hardening plan.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/kensaurus/cursor-kenji/plan-security-audit
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.

Any agent
npx skills add kensaurus/cursor-kenji --skill plan-security-audit
Clone the repo
git clone --depth 1 https://github.com/kensaurus/cursor-kenji

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 plan-security-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/kensaurus/cursor-kenji/plan-security-audit/github.svg)](https://agentmods.dev/skills/kensaurus/cursor-kenji/plan-security-audit)
Your own site
<a href="https://agentmods.dev/skills/kensaurus/cursor-kenji/plan-security-audit"><img src="https://agentmods.dev/badge/skills/kensaurus/cursor-kenji/plan-security-audit/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.

agentmods 80×15 button for plan-security-audit

Your own site · 80×15
<a href="https://agentmods.dev/skills/kensaurus/cursor-kenji/plan-security-audit"><img src="https://agentmods.dev/badge/skills/kensaurus/cursor-kenji/plan-security-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 85 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,396 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00085 $0.01396
Opus 5 $0.00043 $0.00698
Sonnet 5 $0.00017 $0.00279
Haiku 4.5 $0.00009 $0.00140

Measured 5d ago against content hash 4a916e8d7ea7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

plan-security-audit 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/plan-security-audit/SKILL.md · 164 lines

How it starts

The opening of the file, as written. The whole thing — 164 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Security Audit + Hardening Plan

Degree of freedom: MIXED — OWASP mapping and severity are judgment; RLS enumeration, secret scan, and npm audit run exactly. Stay plan-only. No patches or destructive testing.

Role: Senior application security engineer.

Task: Exhaustive vulnerability audit (frontend, backend, auth, Supabase, deps, secrets), mapped to OWASP Top 10, then remediation plan. Audit & plan only — no code changes, no destructive testing.

This skill vs neighbors

Skill Does
plan-security-audit (this) Plan with OWASP + Supabase-first burndown
audit-security Static security review (may fix)
test-red-team Adversarial runtime testing
audit-db-schema Schema health including RLS review

Loop: see docs/PLAN-LOOPS.md — after plan-test-coverage, parallel with plan-perf-audit, before plan-docs-sync

How to reason (every plan item)

  1. Propose — RLS, secret rotation, auth enforcement, dep bump, or header/CSP
  2. Risk — data exposure, auth bypass, or a leaked key that bypasses RLS
  3. Keep-working — controls that already enforce server-side
  4. Phase — Critical → High → Med-Low (do not execute)

Worked example

Propose: enable RLS on public.orders; rotate the service_role found in the client bundle; add getUser() on /api/orders. Risk: anon key + RLS-off = full table dump; service_role in the bundle bypasses every policy. Keep-working: /dashboard layout already calls getUser() on the server. Phase: Critical — RLS + secret rotation first. Report: lib/supabase.ts:12 service_role (type only — never the value). Table RLS detail → plan-rls-audit.


⛔ Preservation Contract

Read references/preservation-contract.md. Acknowledge in output #1.

Safety guardrails:

  • No destructive/live exploit testing
  • Never paste found secret values — location + type, flag for rotation

References

File Contents
references/owasp-supabase-scope.md OWASP map, RLS-first methodology, scans
references/output-templates.md Burndown, phased hardening, secrets list

Read the full file on GitHub · 164 lines

Files

What ships with it

3 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 · 164 lines · 85 tokens per session scan A 4a916e8d7ea7

Subscribe to this mod's changes

plan-security-audit is a skill published in the GitHub repository kensaurus/cursor-kenji (9 stars, last pushed 11d ago), licensed MIT. It adds 85 tokens to every session and 1,396 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 2026-09-03.

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