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 Orizon-eu/claude-code-pentest --skill vuln-chain-composergit clone --depth 1 https://github.com/Orizon-eu/claude-code-pentestWrote 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/orizon-eu/claude-code-pentest/vuln-chain-composer)<a href="https://agentmods.dev/skills/orizon-eu/claude-code-pentest/vuln-chain-composer"><img src="https://agentmods.dev/badge/skills/orizon-eu/claude-code-pentest/vuln-chain-composer/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/orizon-eu/claude-code-pentest/vuln-chain-composer"><img src="https://agentmods.dev/badge/skills/orizon-eu/claude-code-pentest/vuln-chain-composer.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 | $0.00098 | $0.01735 |
| Opus 5 | $0.00049 | $0.00868 |
| Sonnet 5 | $0.00020 | $0.00347 |
| Haiku 4.5 | $0.00010 | $0.00173 |
Grade A, and why
vuln-chain-composer scanned grade A with 1 finding 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 10d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
3. **curl command sequence** for manual reproduction How it starts
The opening of the file, as written. The whole thing — 222 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Vuln Chain Composer
The strategic brain. Correlates individual vulnerabilities into devastating multi-step exploit chains.
Important
CRITICAL: This skill produces offensive security analysis. Only use with explicit authorization on the target systems.
Instructions
Step 1: Import Findings
Accept vulnerability data from:
- JSON output from webapp-exploit-hunter, api-breaker, cloud-pivot-finder
- Manual finding descriptions from the user
- Attack tree data from attack-path-architect
- Mixed sources - consolidate everything
python scripts/import_findings.py --input {findings_dir_or_files}
Normalize all findings to a common format:
- Vulnerability type (SQLi, XSS, SSRF, IDOR, etc.)
- Location (domain, URL, parameter)
- Severity (standalone)
- PoC (if available)
- Prerequisites (authentication level, specific conditions)
Step 2: Cross-Domain Correlation
python scripts/correlate.py --findings {normalized_findings}
Analyze relationships between findings:
Same-Origin Chains:
- XSS on subdomain A + sensitive cookies scoped to parent domain = session hijack on all subdomains
- SSRF on subdomain B + internal API access = data exfiltration via internal endpoints
- Open redirect on auth endpoint + OAuth callback = token theft
Trust-Based Chains:
- Subdomain takeover + same cookie scope = full session hijack
- CI/CD access + deployment pipeline = production RCE
- Cloud metadata via SSRF + IAM overprivilege = full cloud compromise
Credential-Based Chains:
- SQL injection + password hashes = credential cracking + account takeover
- .env file exposure + database credentials = direct data access
- IDOR on user profile + email exposure = targeted phishing + account takeover
Escalation Chains:
- Low-privilege IDOR + mass assignment = privilege escalation to admin
- Self-XSS + CSRF = weaponized stored XSS affecting other users
- Rate limit bypass + brute-force + OTP bypass = authentication bypass
Step 3: Chain Construction
What ships with it
6 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.
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.
- 10d ago First seen · 222 lines · 98 tokens per session scan A 469cb686e608
vuln-chain-composer is a skill published in the GitHub repository Orizon-eu/claude-code-pentest (25 stars, last pushed 6mo ago), licensed MIT. It adds 98 tokens to every session and 1,735 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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