api-04-bola

api-04-bola is a skill for Claude Code, Codex from vigilantshield/Claude-HunterKit. It costs 60 tokens per session (1,155 once invoked), scanned A, original, no licence file.

A skill for testing Broken Object Level Authorization, a security flaw where changing an object identifier can expose or alter another user’s data. It covers REST, GraphQL, and gRPC APIs.

In plain words
What is it for?
Testing object-ID changes, horizontal or vertical privilege escalation, predictable UUIDs, extra-parameter assignment, and indirect object references in APIs.
Why use it?
It helps find cases where an API checks that a request is valid but fails to check whether the caller may access the specific object.

Skill for Claude CodeCodex

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

Good fit Testing object-ID changes, horizontal or vertical privilege escalation, predictable UUIDs, extra-parameter assignment, and indirect object references in APIs.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vigilantshield/claude-hunterkit/api-04-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-04-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-04-bola

README.md
[![agentmods](https://agentmods.dev/badge/skills/vigilantshield/claude-hunterkit/api-04-bola.svg)](https://agentmods.dev/skills/vigilantshield/claude-hunterkit/api-04-bola)
Your own site
<a href="https://agentmods.dev/skills/vigilantshield/claude-hunterkit/api-04-bola"><img src="https://agentmods.dev/badge/skills/vigilantshield/claude-hunterkit/api-04-bola.svg" alt="Measured on agentmods" height="20"></a>
Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,155 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00060 $0.01155
Opus 5 $0.00030 $0.00577
Sonnet 5 $0.00012 $0.00231
Haiku 4.5 $0.00006 $0.00115

Measured 8d ago against content hash 93d8a0d2135c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

api-04-bola scanned grade A with 1 finding 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.

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-04-bola/SKILL.md · 153 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. 8d ago First seen · 153 lines · 60 tokens per session scan A 93d8a0d2135c

Subscribe to this mod's changes

api-04-bola is a skill published in the GitHub repository vigilantshield/Claude-HunterKit (5 stars, last pushed 1mo ago), with no licence file. It adds 60 tokens to every session and 1,155 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (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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