api-09-tenancy-isolation

api-09-tenancy-isolation is a skill for Claude Code, Codex from vigilantshield/Claude-HunterKit. It costs 62 tokens per session (1,067 once invoked), scanned A, original, no licence file.

A guide for testing whether a SaaS or cloud API keeps each customer’s data and resources separated. It checks whether changing tenant identifiers or shared-resource behavior can cross those boundaries.

In plain words
What is it for?
It is for checking tenant IDs in tokens, headers, and request bodies; testing cross-tenant server requests; and probing shared-resource and cloud-boundary weaknesses.
Why use it?
It helps find cases where one customer could view, change, or affect another customer’s data or cloud resources.

Skill for Claude CodeCodex

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

Good fit It is for checking tenant IDs in tokens, headers, and request bodies; testing cross-tenant server requests; and probing shared-resource and cloud-boundary weaknesses.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vigilantshield/claude-hunterkit/api-09-tenancy-isolation
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-09-tenancy-isolation
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-09-tenancy-isolation

README.md
[![agentmods](https://agentmods.dev/badge/skills/vigilantshield/claude-hunterkit/api-09-tenancy-isolation.svg)](https://agentmods.dev/skills/vigilantshield/claude-hunterkit/api-09-tenancy-isolation)
Your own site
<a href="https://agentmods.dev/skills/vigilantshield/claude-hunterkit/api-09-tenancy-isolation"><img src="https://agentmods.dev/badge/skills/vigilantshield/claude-hunterkit/api-09-tenancy-isolation.svg" alt="Measured on agentmods" height="20"></a>
Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,067 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 $0.00062 $0.01067
Opus 5 $0.00031 $0.00534
Sonnet 5 $0.00012 $0.00213
Haiku 4.5 $0.00006 $0.00107

Measured 8d ago against content hash 2e202f5f2e9a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

api-09-tenancy-isolation 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-09-tenancy-isolation/SKILL.md · 146 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 · 146 lines · 62 tokens per session scan A 2e202f5f2e9a

Subscribe to this mod's changes

api-09-tenancy-isolation is a skill published in the GitHub repository vigilantshield/Claude-HunterKit (5 stars, last pushed 1mo ago), with no licence file. It adds 62 tokens to every session and 1,067 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.

Related

Other skills, from other repositories

graphql-audit

GraphQL security hunting — introspection abuse, field suggestion enumeration (clairvoyance), batching DoS, IDOR via aliasing, auth bypass, injection via arguments, subscription abuse, depth/complexity bombs, and WAF bypass. Covers graphw00f fingerprinting, gqlmap, graphql-cop, and inql. Use when a target exposes a…

Awarexone/Agentic-Bug-Hunter · 92 tokens

hunt-api-misconfig

Hunt API security misconfiguration — mass assignment, prototype pollution, HTTP verb tampering. Mass assignment: send {isadmin:true, role:admin, verified:true} on profile/account/reset endpoints — server blindly applies. JWT signature/crypto forging (alg:none, key confusion, kid/jku) is owned by hunt-jwt-crypto; this…

elementalsouls/Claude-BugHunter · 207 tokens

hunt-auth-bypass

Hunting skill for auth bypass vulnerabilities. Built from 12 public bug bounty reports across SAML XSW / parser-differential (GitHub Enterprise CVE-2025-25291/25292), SAML signature stripping (Uber, Rocket.Chat, samlify CVE-2025-47949), SAML domain enforcement bypass via control characters (HackerOne 2024)…

uphiago/recon-skills · 172 tokens

pwnote-engagement-file

Create or validate a pwnote engagement import/export JSON file. Use when the user wants to generate, edit, or verify a pwnote engagement file for data transfer between pwnote instances. The file bundles an entire pentest engagement — metadata, notebook documents, code/host/credential blocks, findings with…

Pwnote/skills · 113 tokens

pwnote-cve-research

Use whenever the user is doing vulnerability research aimed at a CVE/advisory — tracking a responsible disclosure timeline, drafting a vendor notification, requesting a CVE ID from MITRE or a CNA, writing a public security advisory, or mapping a finding to a CWE. Trigger on "CVE", "CNA", "MITRE", "advisory"…

Pwnote/skills · 107 tokens

pwnote-offsec-osai

Use whenever the user is working on Offsec's OSAI / AI Red Teaming certification track, or on AI/LLM/agentic security engagements generally — prompt injection findings, tool-use abuse, agent trajectory documentation, or writing up AI-specific security findings that don't map cleanly to traditional CVSS. Trigger on…

Pwnote/skills · 108 tokens