dynamic-verifier

dynamic-verifier is an agent for Claude Code from morodomi/redteam-skills. It costs 36 tokens per session (3,474 once invoked), scanned C, original, MIT.

An agent that dynamically checks whether potential web vulnerabilities are real by sending HTTP requests to an application. It can test issues such as SQL injection, cross-site scripting, authentication bypasses, and request-forgery weaknesses.

In plain words
What is it for?
It helps verify suspected SQL injection, XSS, authentication, CSRF, SSRF, and file-reading vulnerabilities under configured request limits.
Why use it?
Static analysis can report possible security problems without proving they work; dynamic checks test the application’s actual responses.

Agent for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is - "../../etc/passwd".

Part of the redteam-core plugin — 4 skills, 18 agents shipped together

Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/morodomi/redteam-skills
agentmods
npx agentmods add agents/morodomi/redteam-skills/dynamic-verifier

Made for: Claude Code.

Or install redteam-core, the plugin that ships this one along with the rest of its 4 skills, 18 agents.

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 dynamic-verifier

README.md
[![agentmods](https://agentmods.dev/badge/agents/morodomi/redteam-skills/dynamic-verifier.svg)](https://agentmods.dev/agents/morodomi/redteam-skills/dynamic-verifier)
Your own site
<a href="https://agentmods.dev/agents/morodomi/redteam-skills/dynamic-verifier"><img src="https://agentmods.dev/badge/agents/morodomi/redteam-skills/dynamic-verifier.svg" alt="Measured on agentmods" height="20"></a>
Per session 36 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,474 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. Scan, not verified.
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 $0.00036 $0.03474
Opus 5 $0.00018 $0.01737
Sonnet 5 $0.00007 $0.00695
Haiku 4.5 $0.00004 $0.00347

Measured 6d ago against content hash a16b5b8b3cd2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade C, and why

dynamic-verifier scanned grade C with 2 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 6d 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.

Cloud metadata endpointhighServer-side request forgery

One request to 169.254.169.254 can return temporary IAM credentials.

- Cloud metadata (169.254.169.254)

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

command: "curl -i" # ヘッダ含む
plugins/redteam-core/agents/dynamic-verifier.md · 507 lines

How it starts

The opening of the file, as written. The whole thing — 507 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Dynamic Verifier

静的解析で検出された脆弱性を、実際のHTTPリクエストで動的に検証するエージェント。

Common Settings

共通設定(SQLi/XSS統一):

common:
  rate_limiting: 2 seconds  # 2秒間隔(SQLi/XSS統一)
  max_requests: 50          # Max requests per session
  timeout: 10               # Request timeout (seconds)
  connect_timeout: 5        # Connection timeout (seconds)

Common Pre-processing

すべての動的検証で共通の前処理:

preprocessing:
  # 1. HTTPリクエスト送信
  command: "curl -i"  # ヘッダ含む

  # 2. Content-Type判定
  content_type:
    allow:
      - "text/html"
      - "text/html; charset=utf-8"
    skip:
      - "application/json"
      - "text/xml"
      - "application/xml"

  # 3. リダイレクト処理
  redirect:
    follow: true        # -L フラグ
    max_redirects: 5    # 最大5回

Detection Target

Type Verification Method Flag
SQLi エラーベース検出(' 挿入→SQLエラーメッセージ確認) --dynamic
XSS 反射検出(ペイロード挿入→レスポンスで反射確認) --enable-dynamic-xss
Auth 認証バイパス検出(認証なしで保護リソースアクセス確認) --enable-dynamic-auth
CSRF CSRFトークン検証(トークンなしリクエスト受理確認) --enable-dynamic-csrf
SSRF コールバック検出(外部URL指定→コールバック受信確認) --enable-dynamic-ssrf
File ファイル読取検出(パストラバーサル→既知ファイル内容確認) --enable-dynamic-file

SQLi Detection Patterns

レスポンスに以下のパターンが含まれる場合、SQLi確認:

sqli_error_patterns:
  - "SQL syntax"      # MySQL
  - "mysql_fetch"     # MySQL
  - "ORA-"            # Oracle
  - "pg_query"        # PostgreSQL
  - "sqlite3"         # SQLite
  - "SQLSTATE"        # PDO

Non-Destructive Payloads

sqli_payloads:
  error_based:
    - "'"                    # Single quote - syntax error trigger
    - "1' OR '1'='1"         # Boolean-based (read-only)
    - "1 AND 1=1"            # Numeric injection test

  # Forbidden payloads (never use)
  forbidden:
    # Data destruction
    - "DROP"
    - "DELETE"
    - "TRUNCATE"
    - "UPDATE"
    - "INSERT"
    # Schema modification
    - "ALTER"
    - "CREATE"
    # System operations
    - "EXEC"
    - "EXECUTE"
    - "LOAD_FILE"
    - "INTO OUTFILE"
    # Comments / multi-statement
    - "; --"
    - "/*"
    - "--"
    - "#"          # MySQL comment

Read the full file on GitHub · 507 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. 6d ago First seen · 507 lines · 36 tokens per session scan C a16b5b8b3cd2

Subscribe to this mod's changes

dynamic-verifier is an agent published in the GitHub repository morodomi/redteam-skills (2 stars, last pushed 6mo ago), licensed MIT. It adds 36 tokens to every session and 3,474 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 2 findings (cloud metadata endpoint, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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