sc-clickjacking

sc-clickjacking is a skill for Claude Code from fatihkan/badi. It costs 24 tokens per session (793 once invoked), scanned A, a copy of sc-clickjacking, MIT.

A security checker for clickjacking, where a malicious website places another site inside a hidden or misleading frame to trick users into clicking it. It checks browser headers and frame restrictions.

In plain words
What is it for?
Use it to review X-Frame-Options, the Content-Security-Policy frame-ancestors rule, and JavaScript frame-blocking code in web applications.
Why use it?
It helps prevent users from unknowingly performing actions on an embedded application. Missing frame protections can make sensitive buttons or forms easier to abuse.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Part of the badi plugin — 81 skills, 86 commands, 30 agents, 7 hooks shipped together

Good fit Use it to review X-Frame-Options, the Content-Security-Policy frame-ancestors rule, and JavaScript frame-blocking code in web applications.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/fatihkan/badi/sc-clickjacking
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 fatihkan/badi --skill sc-clickjacking
Clone the repo
git clone --depth 1 https://github.com/fatihkan/badi

Made for: Claude Code.

Or install badi, the plugin that ships this one along with the rest of its 81 skills, 86 commands, 30 agents, 7 hooks.

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 sc-clickjacking

README.md
[![agentmods](https://agentmods.dev/badge/skills/fatihkan/badi/sc-clickjacking.svg)](https://agentmods.dev/skills/fatihkan/badi/sc-clickjacking)
Your own site
<a href="https://agentmods.dev/skills/fatihkan/badi/sc-clickjacking"><img src="https://agentmods.dev/badge/skills/fatihkan/badi/sc-clickjacking.svg" alt="Measured on agentmods" height="20"></a>
Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 793 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.
Origin 98% copy Near-identical to another mod 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 $0.00024 $0.00793
Opus 5 $0.00012 $0.00396
Sonnet 5 $0.00005 $0.00159
Haiku 4.5 $0.00002 $0.00079

Measured yesterday against content hash 5b80656f7fdf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

sc-clickjacking 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 yesterday.

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.

Origin

This is a copy

98% identical to sc-clickjacking — 1 line differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/skills-vault/security-check/sc-clickjacking/SKILL.md · 93 lines

How it starts

The opening of the file, as written. The whole thing — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SC: Clickjacking / UI Redressing

Purpose

Detects clickjacking vulnerabilities where applications can be embedded in iframes on malicious sites, tricking users into clicking hidden elements. Checks for missing X-Frame-Options header, missing Content-Security-Policy frame-ancestors directive, and framebusting bypass vulnerabilities.

Activation

Called by sc-orchestrator during Phase 2 when web applications serving HTML are detected.

Phase 1: Discovery

Keyword Patterns to Search

"X-Frame-Options", "frame-ancestors", "DENY", "SAMEORIGIN",
"helmet", "frameguard", "X_FRAME_OPTIONS",
"SECURE_BROWSER_XSS_FILTER", "clickjack"

Checks

  1. Is X-Frame-Options header set? (DENY or SAMEORIGIN)
  2. Is Content-Security-Policy: frame-ancestors set?
  3. Are both missing? (Clickjacking possible)
  4. Is there JavaScript-based framebusting that can be bypassed?

Configuration Examples

// VULNERABLE: No frame protection headers
app.get('/', (req, res) => {
  res.send('<html>...');  // Can be iframed by any site
});

// SAFE: Using helmet
const helmet = require('helmet');
app.use(helmet.frameguard({ action: 'deny' }));
// Or CSP
app.use(helmet.contentSecurityPolicy({
  directives: { frameAncestors: ["'self'"] }
}));
# Django settings.py
X_FRAME_OPTIONS = 'DENY'  # SAFE
# If missing → VULNERABLE
// SAFE: Set header in middleware
func securityHeaders(next http.Handler) http.Handler {
    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
        w.Header().Set("X-Frame-Options", "DENY")
        w.Header().Set("Content-Security-Policy", "frame-ancestors 'none'")
        next.ServeHTTP(w, r)
    })
}

Severity Classification

  • Critical: Missing frame protection on pages with sensitive actions (transfers, settings)
  • High: Missing frame protection on authenticated pages
  • Medium: Missing frame protection on public pages with forms
  • Low: Missing CSP frame-ancestors when X-Frame-Options is set (defense in depth)

Read the full file on GitHub · 93 lines

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. yesterday First seen · 93 lines · 24 tokens per session scan A 5b80656f7fdf

Subscribe to this mod's changes

sc-clickjacking is a skill published in the GitHub repository fatihkan/badi (7 stars, last pushed 2d ago), licensed MIT. It adds 24 tokens to every session and 793 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 98% identical to sc-clickjacking, differing in 1 line, and is treated as a copy.

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