security-auditor

A security checker for KrakenD, a tool that turns backend services into APIs. It reviews configuration for authentication, authorization, exposure, and other security problems.

In plain words
What is it for?
Use it to audit KrakenD configuration, review login and access controls, find vulnerabilities, and prepare fixes with their locations.
Why use it?
It helps find unsafe API settings and explains how to correct them before deployment or after configuration changes.

Skill for Claude CodeCodex

Part of the krakend-ai-assistant plugin — 5 skills, 1 agent, 1 MCP server shipped together

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.

agentmods
npx agentmods add skills/krakend/claude-code-plugin/security-auditor
Any agent
npx skills add krakend/claude-code-plugin --skill security-auditor
Clone the repo
git clone --depth 1 https://github.com/krakend/claude-code-plugin

Made for: Claude Code, Codex.

Or install krakend-ai-assistant, the plugin that ships this one along with the rest of its 5 skills, 1 agent, 1 MCP server.

Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 834 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 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 $0.00030 $0.00834
Opus 5 $0.00015 $0.00417
Sonnet 5 $0.00006 $0.00167
Haiku 4.5 $0.00003 $0.00083

Measured 3d ago against content hash fccd2246d573, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

security-auditor 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 3d 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/security-auditor/SKILL.md · 58 lines

How it starts

The opening of the file, as written. The whole thing — 58 lines — stays where its author put it; the contents beside it link to each section on GitHub.

KrakenD Security Auditor

Purpose

Performs comprehensive security audits using native krakend audit with intelligent fallback and automatic Flexible Configuration support. Identifies authentication gaps, authorization issues, exposure risks, and security violations with actionable remediation.

When to activate

  • User asks to audit security: "check security", "security audit", "is this secure"
  • User mentions security concerns: "secure my api", "security issues", "vulnerabilities"
  • User wants to review authentication/authorization: "check auth", "review authentication"
  • User wants to find security problems: "security scan", "find security issues"
  • After configuration changes to verify security posture
  • Before production deployment (proactively suggest)

What this skill does

Performs comprehensive security audit using smart three-tier approach (native → Docker → basic checks), auto-detects Flexible Configuration (CE and EE variants), categorizes issues by severity (Critical → High → Medium → Low → Info), provides specific remediation with exact location/fix instructions/config examples/documentation links, and checks common vulnerabilities (authentication, authorization, exposure, DoS protection, security headers, encryption, injection).

KrakenD-Specific Quirks

Flexible Configuration: CE uses .tmpl files with Go templates (requires FC_ENABLE=1, FC_SETTINGS env vars). EE uses flexible_config.json (auto-detected, no env vars). Schema: Always use versionless https://www.krakend.io/schema/krakend.json Docker/Edition: CE uses krakend image, EE uses krakend/krakend-ee image (requires LICENSE file) Audit Methods: Native krakend audit (most comprehensive) > Docker > Basic checks

Dynamic Sources

  • Security Documentation: Search KrakenD documentation for security best practices and hardening guides
  • Features & Edition Matrix: https://www.krakend.io/features/ for CE vs EE security features
  • Runtime Detection: ALWAYS call detect_runtime_environment tool BEFORE running any KrakenD command. Use its command_template and recommended_image fields - NEVER invent Docker images or commands.
  • KrakenD MCP Tools: Use the available tools for security auditing, validation, and documentation search

Read the full file on GitHub · 58 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. 3d ago First seen · 58 lines · 30 tokens per session scan A fccd2246d573

Subscribe to this mod's changes

security-auditor is a skill published in the GitHub repository krakend/claude-code-plugin (3 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 30 tokens to every session and 834 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 2026-08-31.

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