What is vector-store-isolation-test?

A test for access control in a multi-user or multi-tenant retrieval-augmented generation (RAG) system. It checks whether each user or organization can retrieve only its own documents.

Use it to validate per-user and per-tenant authorization in the retrieval layer of a RAG application.

It helps find data-isolation failures that could let one user access another user's information through search or AI retrieval.

vector-store-isolation-test — Skill for Claude Code by jassics

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 jassics/awesome-claude-security --skill vector-store-isolation-test

Clone the repo

git clone --depth 1 https://github.com/jassics/awesome-claude-security

Made for: Claude Code.

Or install rag-security, the plugin that ships this one along with the rest of its 3 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/jassics/awesome-claude-security/vector-store-isolation-test.svg)](https://agentmods.dev/skills/jassics/awesome-claude-security/vector-store-isolation-test)

Your own site

<a href="https://agentmods.dev/skills/jassics/awesome-claude-security/vector-store-isolation-test"><img src="https://agentmods.dev/badge/skills/jassics/awesome-claude-security/vector-store-isolation-test.svg" alt="Measured on agentmods" height="20"></a>

Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 484 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 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.

Model	Per session	Once invoked
Fable 5.1	$0.00052	$0.00484
Opus 5	$0.00026	$0.00242
Sonnet 5	$0.00010	$0.00097
Haiku 4.5	$0.00005	$0.00048

Measured 4d ago against content hash eda6cacb7069, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

vector-store-isolation-test 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 4d 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.

plugins/rag-security/skills/vector-store-isolation-test/SKILL.md · 53 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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.

4d ago First seen · 53 lines · 52 tokens per session scan A eda6cacb7069

Subscribe to this mod's changes

vector-store-isolation-test is a skill published in the GitHub repository jassics/awesome-claude-security (6 stars, last pushed 1mo ago), licensed GPL-3.0. It adds 52 tokens to every session and 484 once invoked, about $0.0003 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 2026-09-03.

Claude Code Data and AI RAG and vectors Security agentic-ai-security claude-code-plugin genai-security vibe-coding-security

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