api-08-advanced-bola

api-08-advanced-bola is a skill for Claude Code, Codex from vigilantshield/Claude-HunterKit. It costs 61 tokens per session (965 once invoked), scanned B, original, no licence file.

A guide to testing authorization flaws where changing an object ID may expose another user’s data, often called BOLA or IDOR. It focuses on advanced ways to enumerate IDs and detect access through timing, caches, gRPC, or bulk exports.

In plain words
What is it for?
Use it for authorized security testing of APIs, including batch ID probing, response-timing checks, CDN cache-key tests, gRPC or Protocol Buffer ID changes, and bulk-export abuse.
Why use it?
It helps security testers investigate these flaws when ordinary ID checks are hidden by web filters or request limits.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it for authorized security testing of APIs, including batch ID probing, response-timing checks, CDN cache-key tests, gRPC or Protocol Buffer ID changes, and bulk-export abuse.

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Install with agentmods
npx agentmods add skills/vigilantshield/claude-hunterkit/api-08-advanced-bola
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 vigilantshield/Claude-HunterKit --skill api-08-advanced-bola
Clone the repo
git clone --depth 1 https://github.com/vigilantshield/Claude-HunterKit

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 api-08-advanced-bola

README.md
[![agentmods](https://agentmods.dev/badge/skills/vigilantshield/claude-hunterkit/api-08-advanced-bola/github.svg)](https://agentmods.dev/skills/vigilantshield/claude-hunterkit/api-08-advanced-bola)
Your own site
<a href="https://agentmods.dev/skills/vigilantshield/claude-hunterkit/api-08-advanced-bola"><img src="https://agentmods.dev/badge/skills/vigilantshield/claude-hunterkit/api-08-advanced-bola/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 api-08-advanced-bola

Your own site · 80×15
<a href="https://agentmods.dev/skills/vigilantshield/claude-hunterkit/api-08-advanced-bola"><img src="https://agentmods.dev/badge/skills/vigilantshield/claude-hunterkit/api-08-advanced-bola.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 965 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00061 $0.00965
Opus 5 $0.00030 $0.00483
Sonnet 5 $0.00012 $0.00193
Haiku 4.5 $0.00006 $0.00097

Measured 9d ago against content hash 88cd9e7d0456, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade B, and why

api-08-advanced-bola scanned grade B 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 9d 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.

Sends data to an external URLmediumData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

grpcurl -d '{"user_id": 456}' target:443 api.UserService/GetUser

Makes network callslowCapability

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

- curl / httpx
skills/api/api-08-advanced-bola/SKILL.md · 135 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

1 file 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. 9d ago First seen · 135 lines · 61 tokens per session scan B 88cd9e7d0456

Subscribe to this mod's changes

api-08-advanced-bola is a skill published in the GitHub repository vigilantshield/Claude-HunterKit (5 stars, last pushed 1mo ago), with no licence file. It adds 61 tokens to every session and 965 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 2 findings (sends data to an external url, 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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