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.
npx skills add cenconq25/claude-code-app-studio --skill security-auditgit clone --depth 1 https://github.com/cenconq25/claude-code-app-studioWrote 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.
[](https://agentmods.dev/skills/cenconq25/claude-code-app-studio/security-audit)<a href="https://agentmods.dev/skills/cenconq25/claude-code-app-studio/security-audit"><img src="https://agentmods.dev/badge/skills/cenconq25/claude-code-app-studio/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.
<a href="https://agentmods.dev/skills/cenconq25/claude-code-app-studio/security-audit"><img src="https://agentmods.dev/badge/skills/cenconq25/claude-code-app-studio/security-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00056 | $0.02201 |
| Opus 5 | $0.00028 | $0.01100 |
| Sonnet 5 | $0.00011 | $0.00440 |
| Haiku 4.5 | $0.00006 | $0.00220 |
Grade A, and why
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.
How it starts
The opening of the file, as written. The whole thing — 302 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Security Audit
A scoped security pass anchored on OWASP MASVS. Each check has a detection method, an impact rating, and a remediation suggestion. Output is a prioritised P0-P3 backlog, plus a written report.
Phase 1: Read Project Context
Read in parallel:
.claude/docs/technical-preferences.md— framework, target platforms, forbidden patterns.CLAUDE.md— project context.docs/architecture/— relevant ADRs (auth, storage, network).- Dependency manifests:
package.json,pubspec.yaml,Podfile,Package.swift,build.gradle*.
Confirm scope with the user. If --scope=all, run every check.
Phase 2: Insecure Storage (MASVS-STORAGE)
Goal: nothing sensitive lives outside the platform's secure store.
Grep the codebase for:
- iOS:
UserDefaultsorNSUserDefaultsstoring tokens, IDs, PII. - Android:
SharedPreferencesstoring credentials, tokens, biometric state. - React Native:
AsyncStorage,MMKVwithout encryption,react-native-keychainmisuse. - Flutter:
shared_preferences, raw SQLite without SQLCipher. - Cross: hardcoded strings in source that resemble keys, tokens, JWTs, or test passwords.
For each hit, classify the data:
- Auth tokens, refresh tokens, OAuth creds, biometric state -> P0 unless in Keychain / Keystore.
- PII (email, phone, name) -> P1 unless required and minimised.
- Feature flags, UI prefs -> P3.
Recommended remediation: Keychain (iOS) / Keystore (Android) / EncryptedSharedPreferences / SecureStore (Expo) / flutter_secure_storage.
Phase 3: Network and TLS (MASVS-NETWORK)
Look for:
- HTTP (not HTTPS) URLs in source.
- iOS
NSAllowsArbitraryLoadsset to true inInfo.plist. - Android
usesCleartextTraffic="true"or a permissivenetwork_security_config.xml. - Custom
TrustManager/URLSessionDelegate/HostnameVerifierthat accept any cert (man-in-the-middle vector). - Missing certificate pinning on auth endpoints.
- React Native fetch without
cache-controlconfiguration leaving sensitive responses in disk caches.
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.
- 5d ago First seen · 302 lines · 56 tokens per session scan A 2c11e43947c6
security-audit is a skill published in the GitHub repository cenconq25/claude-code-app-studio (40 stars, last pushed 4mo ago), licensed MIT. It adds 56 tokens to every session and 2,201 once invoked, about $0.0003 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.
Other skills, from other repositories
systematic-debugging
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.
local-ai-agents
Build local-first AI agents that run entirely on a developer workstation with Microsoft Foundry Local and Qwen function-calling models. Covers Small Language Models (SLMs), the OpenAI-compatible local endpoint, sandboxed local tools, local RAG with Chroma, local MCP servers, hybrid cloud/local routing, and the…
next-cache-components-adoption
Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces. Use when the user wants to enable, adopt, or migrate to Cache Components, flip the cacheComponents flag, work through a flood of blocking-prerender / instant validation errors, run the cache-components-instant-false codemod, or…
insight-error-page
Write or audit an insight-kind error page for the Next.js dev overlay. Use when creating a new errors/ .mdx page, auditing an existing one, or checking that a page matches the framework fix cards. Covers page structure, title alignment, FixCard cards with Copy prompt button, code snippets, terminology verification…
next-cache-components-optimizer
Drive a Next.js route to instant navigation by setting up an agentic loop, under Cache Components / PPR, on initial load (hard navigation) and client-side navigation (soft navigation). Encode the goal as a failing @next/playwright instant() e2e and work it to green, one verified route at a time; the shipped test then…
next-partial-prefetching-adoption
Turn on Partial Prefetching in a Next.js app and work through the insights it surfaces. Use when the user wants to enable or adopt Partial Prefetching, flip the partialPrefetching flag, opt routes in with export const prefetch = 'partial', audit Link prefetch={true} behavior, preserve existing prefetched UI with…