ExtremeRouter: Skill for Claude Code

.agents/skills/extreme-router-code-audit/SKILL.md

extreme-router-code-audit is a skill for Claude Code, Codex from rsalmn/ExtremeRouter. It costs 125 tokens per session (1,451 once invoked), scanned A, original, MIT.

A code-review procedure for ExtremeRouter, a self-hosted gateway that controls access to AI models. It requires careful reasoning and an audit whenever the code is changed.

In plain words
What is it for?
It is for modifying, refactoring, or fixing ExtremeRouter code, including API routes, middleware, model access rules, monitoring, circuit breakers, and database schemas.
Why use it?
Changes to authentication, routing, access controls, or the database can expose models or break request handling. The procedure helps find the underlying problem and consider security risks before editing.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is rsalmn/ExtremeRouter's own configuration. It tells Claude Code and Codex how to work on ExtremeRouter itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything ExtremeRouter configures →

Reuse

Borrowing it

Nothing to install: this file belongs to rsalmn/ExtremeRouter. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/rsalmn/ExtremeRouter/main/.agents/skills/extreme-router-code-audit/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/rsalmn/ExtremeRouter

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 extreme-router-code-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/rsalmn/extremerouter/extreme-router-code-audit.svg)](https://agentmods.dev/skills/rsalmn/extremerouter/extreme-router-code-audit)
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<a href="https://agentmods.dev/skills/rsalmn/extremerouter/extreme-router-code-audit"><img src="https://agentmods.dev/badge/skills/rsalmn/extremerouter/extreme-router-code-audit.svg" alt="Measured on agentmods" height="20"></a>
Per session 125 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,451 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 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 $0.00125 $0.01451
Opus 5 $0.00063 $0.00726
Sonnet 5 $0.00025 $0.00290
Haiku 4.5 $0.00013 $0.00145

Measured 7d ago against content hash 72e1612c1178, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

extreme-router-code-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 7d 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.

.agents/skills/extreme-router-code-audit/SKILL.md · 103 lines

How it starts

The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ExtremeRouter — Critical Thinking & Mandatory Code Audit

Konteks: ExtremeRouter (alias 9Router) adalah self-hosted AI gateway, dibangun dari base 9Router sebagai starting point. Stack: Next.js 16, React 19, Node.js 20+, SQLite. Kode sudah tersedia di folder lokal — jangan cari/reference ke GitHub.

Mode Berpikir yang Wajib Dipakai

  1. Jangan langsung nulis kode. Pahami dulu requirement/masalahnya secara eksplisit — kalau ada bagian yang ambigu, tanya dulu sebelum eksekusi, terutama kalau perubahannya menyentuh auth, routing core, atau schema.
  2. Cari root cause, bukan gejala. Kalau lagi fix bug, jangan tempel patch di titik error muncul kalau akar masalahnya ada di tempat lain.
  3. Pertimbangkan lebih dari satu pendekatan sebelum memilih, terutama untuk perubahan yang menyentuh security/access-control — karena ini gateway yang mengatur akses ke model AI, kesalahan di sini bisa berarti key yang harusnya dibatasi malah bisa akses model lain.
  4. Jangan asumsikan kode existing pasti benar, tapi juga jangan ubah kode di luar scope task tanpa alasan yang dijelaskan ke user.
  5. Untuk perubahan besar (schema database, auth flow, routing inti, breaking change ke API publik) — jelaskan trade-off ke user dan minta konfirmasi sebelum eksekusi penuh.

Fitur Paling Kritis: Per-Key Model Access Control

  • Kontrol granular model AI mana yang boleh diakses tiap API key — ini TIDAK ada di base 9Router dan jadi core value project ini.
  • Setiap perubahan yang menyentuh layer routing, auth, atau middleware WAJIB dicek: apakah aturan akses per-key masih dihormati? Adakah path baru yang berpotensi bypass access control (endpoint baru yang lupa dipasangi guard yang sama)?
  • Fitur target lain (belum semua selesai): Playground, Health Monitor, Circuit Breaker.

ATURAN WAJIB: Audit Setelah Setiap Perubahan Kode

Sebelum bilang "selesai" ke user, jalankan audit ini setiap kali selesai menulis, mengubah, menambah, atau refactor kode. Ini bukan opsional, dan berlaku juga untuk bug fix sekecil apapun.

Read the full file on GitHub · 103 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. 7d ago First seen · 103 lines · 125 tokens per session scan A 72e1612c1178

Subscribe to this mod's changes

extreme-router-code-audit is a skill published in the GitHub repository rsalmn/ExtremeRouter (30 stars, last pushed yesterday), licensed MIT. It adds 125 tokens to every session and 1,451 once invoked, about $0.0006 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 2026-08-30.

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