What is analyzing-api-gateway-access-logs?

A log-analysis guide for API gateways such as AWS API Gateway, Kong, and Nginx. It uses request records to spot patterns linked to common API attacks.

Use it to investigate API misuse and create detection rules for attacks such as IDOR/BOLA, credential scanning, injection attempts, unusual HTTP methods, and rate-limit bypasses.

It helps turn large collections of gateway requests into evidence of abuse, such as attempts to access other users’ records or bypass limits. This reduces the need to inspect suspicious requests one by one.

analyzing-api-gateway-access-logs — Skill for Claude Code by killvxk

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 killvxk/cybersecurity-skills-zh --skill analyzing-api-gateway-access-logs

Clone the repo

git clone --depth 1 https://github.com/killvxk/cybersecurity-skills-zh

Made for: Claude Code.

Or install cybersecurity-skills-zh, the plugin that ships this one along with the rest of its 58 skills.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/killvxk/cybersecurity-skills-zh/analyzing-api-gateway-access-logs/github.svg)](https://agentmods.dev/skills/killvxk/cybersecurity-skills-zh/analyzing-api-gateway-access-logs)

Your own site

<a href="https://agentmods.dev/skills/killvxk/cybersecurity-skills-zh/analyzing-api-gateway-access-logs"><img src="https://agentmods.dev/badge/skills/killvxk/cybersecurity-skills-zh/analyzing-api-gateway-access-logs/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/killvxk/cybersecurity-skills-zh/analyzing-api-gateway-access-logs"><img src="https://agentmods.dev/badge/skills/killvxk/cybersecurity-skills-zh/analyzing-api-gateway-access-logs.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 85 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 404 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.

Model	Per session	Once invoked
Fable 5.1	$0.00085	$0.00404
Opus 5	$0.00043	$0.00202
Sonnet 5	$0.00017	$0.00081
Haiku 4.5	$0.00009	$0.00040

Measured 10d ago against content hash 7a2e36f3f0bc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

analyzing-api-gateway-access-logs 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 10d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/agent.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/analyzing-api-gateway-access-logs/SKILL.md · 44 lines

What it actually says

分析 API 网关访问日志

使用说明

解析 API 网关访问日志，识别攻击模式，包括对象级别授权缺失（BOLA）、过度数据暴露和注入尝试。

import pandas as pd

df = pd.read_json("api_gateway_logs.json", lines=True)
# 检测 BOLA：同一用户访问大量不同资源 ID
bola = df.groupby(["user_id", "endpoint"]).agg(
    unique_ids=("resource_id", "nunique")).reset_index()
suspicious = bola[bola["unique_ids"] > 50]

关键检测模式：

BOLA/IDOR：顺序资源 ID 枚举
通过 Header 操纵绕过速率限制
凭据扫描（单一来源的 401 激增）
查询参数中的 SQL/NoSQL 注入
只读端点上的异常 HTTP 方法（DELETE、PATCH）

示例

# 检测 401 激增，指示凭据扫描
auth_failures = df[df["status_code"] == 401]
scanner_ips = auth_failures.groupby("source_ip").size()
scanners = scanner_ips[scanner_ips > 100]

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.

10d ago First seen · 44 lines · 85 tokens per session scan A 7a2e36f3f0bc

Subscribe to this mod's changes

analyzing-api-gateway-access-logs is a skill published in the GitHub repository killvxk/cybersecurity-skills-zh (44 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 85 tokens to every session and 404 once invoked, about $0.0004 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.

Analytics and metrics Security access analyzing api gateway