Laravel Mass Assignment and Authorization Review

Laravel Mass Assignment and Authorization Review is a skill for Claude Code from s977043/river-review. It costs 35 tokens per session (1,007 once invoked), scanned A, original, MIT.

A Laravel security review for unsafe model updates and missing permission checks on actions that change or delete data.

In plain words
What is it for?
It checks model creation and updates for unrestricted request data and reviews mutating controller actions for authorization through policies, gates, or middleware.
Why use it?
It helps prevent mass assignment, where unexpected user-supplied fields can change protected values, and prevents users from modifying records they are not allowed to change.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the river-review plugin — 138 skills, 18 commands, 5 agents, 3 hooks shipped together

Good fit It checks model creation and updates for unrestricted request data and reviews mutating controller actions for authorization through policies, gates, or middleware.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/s977043/river-review/laravel-mass-assignment
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 s977043/river-review --skill laravel-mass-assignment
Clone the repo
git clone --depth 1 https://github.com/s977043/river-review

Made for: Claude Code.

Or install river-review, the plugin that ships this one along with the rest of its 138 skills, 18 commands, 5 agents, 3 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 Laravel Mass Assignment and Authorization Review

README.md
[![agentmods](https://agentmods.dev/badge/skills/s977043/river-review/laravel-mass-assignment/github.svg)](https://agentmods.dev/skills/s977043/river-review/laravel-mass-assignment)
Your own site
<a href="https://agentmods.dev/skills/s977043/river-review/laravel-mass-assignment"><img src="https://agentmods.dev/badge/skills/s977043/river-review/laravel-mass-assignment/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.

agentmods 80×15 button for Laravel Mass Assignment and Authorization Review

Your own site · 80×15
<a href="https://agentmods.dev/skills/s977043/river-review/laravel-mass-assignment"><img src="https://agentmods.dev/badge/skills/s977043/river-review/laravel-mass-assignment.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,007 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 $0.00035 $0.01007
Opus 5 $0.00017 $0.00504
Sonnet 5 $0.00007 $0.00201
Haiku 4.5 $0.00003 $0.00101

Measured 8d ago against content hash cce21ac32548, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

Laravel Mass Assignment and Authorization Review 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 8d 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.

skills/midstream/laravel-mass-assignment/SKILL.md · 77 lines

What it actually says

Pattern declaration

Primary pattern: Reviewer Secondary patterns: Inversion Why: mass assignment 脆弱性と認可漏れをチェックリスト型で検査する

Goal / 目的

  • create($request->all()) 等による mass assignment 脆弱性(公式が is_admin 注入による権限昇格を例示)を検出する。
  • 更新・削除系コントローラアクションの認可チェック漏れを検出する。

Non-goals / 扱わないこと

  • クエリ効率(laravel-eloquent-nplus1 のスコープ)。
  • バリデーションルールの網羅性(要件依存のため一律指摘しない)。
  • Gate と Policy の使い分けの強制(公式が混在を許容)。

Pre-execution Gate / 実行前ゲート

このスキルは以下の条件がすべて満たされない限りNO_REVIEWを返す。

  • 差分にモデルの create / update / fill、またはコントローラの mutating アクションの追加変更が含まれている
  • diff コンテキストが利用可能である

ゲート不成立時の出力: NO_REVIEW: laravel-mass-assignment — 対象操作の変更なし

False-positive guards / 抑制条件

  • $request->all() でも直後に手動フィルタ / 明示カラム指定があれば安全。
  • CLI / seeder / 内部処理での forceFill / unguard は、ユーザー入力でなければ脆弱性ではない。
  • authorize(): true は認可を controller / middleware 側で実施していれば正当。
  • before() filter(admin 一括許可)がある場合、個別 policy メソッドに admin 分岐がないことを指摘しない。
  • Gate を使っていること自体は指摘しない(公式が Gate / Policy 混在を許容)。

Rule / ルール

  • ユーザー入力からのモデル作成・更新は $request->validated() / $request->safe()->only([...]) を使う($request->all() 直渡しを避ける)。
  • $guarded = [](全 unguarded)でユーザー入力を直接渡していないか確認する。
  • 更新・削除系アクションに認可(Gate::authorize / $user->can / can middleware / FormRequest authorize() のいずれか)があるか確認する。
  • 複雑・再利用される validation は FormRequest 化を推奨する。

Evidence / 根拠の取り方

  • 指摘は <file>:<line> で差分に紐づけ、公式規約(laravel.com/docs/12.x/eloquent#mass-assignment / authorization)を 1 行で添える。
  • 認可が diff 外の middleware にある可能性がある場合は断定せず questions で返す。

Output / 出力(短文版の推奨)

コメントは日本語で返す。

  • Finding: mass assignment / 認可漏れのどちらか(1文)
  • Impact: 権限昇格 / 不正データ更新
  • Fix: validated() / safe()->only() / 認可追加の最小案

Sources / 出典

Files

What ships with it

3 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.

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. 8d ago First seen · 77 lines · 35 tokens per session scan A cce21ac32548

Subscribe to this mod's changes

Laravel Mass Assignment and Authorization Review is a skill published in the GitHub repository s977043/river-review (3 stars, last pushed today), licensed MIT. It adds 35 tokens to every session and 1,007 once invoked, about $0.0002 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.