Individual skill
custom-ai-router-assessment
Assess self-hosted AI API routers/gateways built on CUSTOM web stacks (Next.js App Router class — Custom AI Router, 9router-style), as opposed to New API/One API forks. Use when target shows x-powered-by Next.js + /_next/static/chunks bundles, an AI-gateway product description, /subscription customer portal, /maintainer admin panel, or OpenAI-compatible /v1/* endpoints. Covers chunk route-mining, panel discovery via redirects, auth-gate probing with fake IDs, embedded-key verification (Firebase/OAuth), login rate-limit testing, common finding patterns, and non-destructive PoC discipline.
skills/custom-ai-router-assessment/SKILL.md
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- Last checked
- Nov 4, 2026
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- Nov 5, 2026
- License
- Apache-2.0
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- ai-agent Repository topic
- appsec Repository topic
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- cybersecurity Repository topic
- devsecops Repository topic
- exploit-validation Repository topic
- hermes-agent Repository topic
- infosec Repository topic
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- testing Derived category
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SKILL.mdcore · 6,132 bytesSKILL.mdcore · 6,132 bytesSKILL.mdcore · 6,132 bytesreferences/custom-router-case.mddoc · 4,791 bytes
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# Custom AI Router Assessment (Next.js-class self-hosted gateways)
Companion to `security/ai-api-gateway-security` (which covers New API/One API forks and is manually authored — do not expect to edit it; extend THIS skill instead when learning applies to custom-stack routers).
## 1. Fingerprint
| Signal | Meaning |
|---|---|
| `x-powered-by: Next.js`, `x-nextjs-cache: HIT`, `x-nextjs-prerender` | Next.js App Router behind CDN |
| Bundles at `/_next/static/chunks/<hash>.js` (Turbopack names, no `index.<hash>.js`) | route mining target |
| `/subscription` portal + Google Identity Services | customer commerce built-in (no separate topup.* storefront) |
| `/maintainer` → 307 `/maintainer/login` | separate admin panel, username/password auth |
**Panels hide from HTML links — discover them by following redirect targets.** Probe likely paths (`/admin`, `/dashboard`, `/login`, `/maintainer`) and read each 307's `Location`; that is how `/maintainer/login` surfaces even when no page links to it.
