executive-mentor

executive-mentor is a plugin for Claude Code from SebastianLuser/claude-code-arcane. Its manifest loads nothing; the 6 skills it bundles cost 222 tokens per session together, scanned A, original, no licence file.

An adversarial thinking partner for founders and executives. It challenges plans, board preparation, difficult decisions, and post-mortems to expose weaknesses.

In plain words
What is it for?
Use it to stress-test plans, prepare for board meetings, navigate difficult choices, and review what went wrong.
Why use it?
It helps leaders prepare for scrutiny and examine important decisions from a more critical viewpoint.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit Use it to stress-test plans, prepare for board meetings, navigate difficult choices, and review what went wrong.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add SebastianLuser/claude-code-arcane/plugin install executive-mentor
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.

Clone the repo
git clone --depth 1 https://github.com/SebastianLuser/claude-code-arcane

Made for: Claude Code.

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 executive-mentor

README.md
[![agentmods](https://agentmods.dev/badge/plugins/sebastianluser/claude-code-arcane/executive-mentor/github.svg)](https://agentmods.dev/plugins/sebastianluser/claude-code-arcane/executive-mentor)
Your own site
<a href="https://agentmods.dev/plugins/sebastianluser/claude-code-arcane/executive-mentor"><img src="https://agentmods.dev/badge/plugins/sebastianluser/claude-code-arcane/executive-mentor/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 executive-mentor

Your own site · 80×15
<a href="https://agentmods.dev/plugins/sebastianluser/claude-code-arcane/executive-mentor"><img src="https://agentmods.dev/badge/plugins/sebastianluser/claude-code-arcane/executive-mentor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 6 skills cost 222 tokens a session between them.
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.
Security

Grade A, and why

executive-mentor 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 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.

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.

skills/executive-mentor/.claude-plugin/plugin.json · 13 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Contents

What it installs

The manifest is a name and a version. 6 skills travel with it, and installing the plugin installs all of them — 222 tokens a session between them. Each is measured on its own page, and each can be installed alone.

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 · 13 lines scan A fa9b0bc22fd1

Subscribe to this mod's changes

executive-mentor is a plugin published in the GitHub repository SebastianLuser/claude-code-arcane (2 stars, last pushed 2d ago), with no licence file. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.