omnicursor: Skill for Claude Code

.cursor/skills/onex-hostile-reviewer/SKILL.md

onex-hostile-reviewer is a skill for Claude Code, Cursor from Julian0444/omnicursor. It costs 8 tokens per session (6,246 once invoked), scanned A, original, no licence file.

A review skill for deliberately challenging architecture and the places where requests are dispatched in an application. Architecture is the system's overall structure; a dispatch surface is where requests are routed to handlers.

In plain words
What is it for?
Use it for adversarial reviews of architecture, request routing, and related descriptions.
Why use it?
It helps expose design weaknesses that a routine review may overlook.

Skill for Claude CodeCursor

Written for Claude Code and Cursor: disable-model-invocation in frontmatter, but also shipped in a Cursor plugin.

This is Julian0444/omnicursor's own configuration. It tells Claude Code and Cursor how to work on omnicursor itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything omnicursor configures →

Part of the omnicursor plugin — 17 skills shipped together

Reuse

Borrowing it

Nothing to install: this file belongs to Julian0444/omnicursor. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Julian0444/omnicursor/main/.cursor/skills/onex-hostile-reviewer/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Julian0444/omnicursor

Made for: Claude Code, Cursor.

Or install omnicursor, the plugin that ships this one along with the rest of its 17 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.

agentmods badge for onex-hostile-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/skills/julian0444/omnicursor/onex-hostile-reviewer/github.svg)](https://agentmods.dev/skills/julian0444/omnicursor/onex-hostile-reviewer)
Your own site
<a href="https://agentmods.dev/skills/julian0444/omnicursor/onex-hostile-reviewer"><img src="https://agentmods.dev/badge/skills/julian0444/omnicursor/onex-hostile-reviewer/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 onex-hostile-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/skills/julian0444/omnicursor/onex-hostile-reviewer"><img src="https://agentmods.dev/badge/skills/julian0444/omnicursor/onex-hostile-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 8 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,246 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00008 $0.06246
Opus 5 $0.00004 $0.03123
Sonnet 5 $0.00002 $0.01249
Haiku 4.5 $0.00001 $0.00625

Measured 11d ago against content hash ec8a02465dea, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

onex-hostile-reviewer 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 11d 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.

.cursor/skills/onex-hostile-reviewer/SKILL.md · 600 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

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. 11d ago First seen · 600 lines · 8 tokens per session scan A ec8a02465dea

Subscribe to this mod's changes

onex-hostile-reviewer is a skill published in the GitHub repository Julian0444/omnicursor (2 stars, last pushed 4d ago), with no licence file. It adds 8 tokens to every session and 6,246 once invoked, about $0.0000 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 2026-08-31.