AgentStack: Skill for Claude Code

.github/skills/plugin-settings/SKILL.md

Plugin Settings is a skill for Claude Code, Codex from ssdeanx/AgentStack. It costs 81 tokens per session (3,117 once invoked), scanned B, original, no licence file.

A guide to storing settings for a plugin. It covers local Markdown files with YAML frontmatter, which is a small configuration section at the top of a file, and project-specific plugin state.

In plain words
What is it for?
Use it to add user or project settings, read .local.md configuration files, and store plugin state.
Why use it?
It helps make plugin behavior configurable without hard-coding every choice into the plugin.

Skill for Claude CodeCodex

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

This is ssdeanx/AgentStack's own configuration. It tells Claude Code and Codex how to work on AgentStack 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 AgentStack configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ssdeanx/AgentStack. 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/ssdeanx/AgentStack/main/.github/skills/plugin-settings/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/ssdeanx/AgentStack

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 Plugin Settings

README.md
[![agentmods](https://agentmods.dev/badge/skills/ssdeanx/agentstack/plugin-settings/github.svg)](https://agentmods.dev/skills/ssdeanx/agentstack/plugin-settings)
Your own site
<a href="https://agentmods.dev/skills/ssdeanx/agentstack/plugin-settings"><img src="https://agentmods.dev/badge/skills/ssdeanx/agentstack/plugin-settings/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 Plugin Settings

Your own site · 80×15
<a href="https://agentmods.dev/skills/ssdeanx/agentstack/plugin-settings"><img src="https://agentmods.dev/badge/skills/ssdeanx/agentstack/plugin-settings.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 81 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,117 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 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 $0.00081 $0.03117
Opus 5.5 $0.00032 $0.01247
Sonnet 5.5 $0.00016 $0.00623
Haiku 4.5 $0.00008 $0.00312

Measured 1mo ago against content hash b0c7d9f303dc, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

Plugin Settings scanned grade B 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 1mo ago.

The scan reads SKILL.md. This mod also ships 3 executable files (examples/read-settings-hook.sh, scripts/parse-frontmatter.sh, scripts/validate-settings.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

- Readable by user only (`chmod 600`)
.github/skills/plugin-settings/SKILL.md · 566 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

7 files 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. 1mo ago First seen · 566 lines · 81 tokens per session scan B b0c7d9f303dc

Subscribe to this mod's changes

Plugin Settings is a skill published in the GitHub repository ssdeanx/AgentStack (45 stars, last pushed 6mo ago), with no licence file. It adds 81 tokens to every session and 3,117 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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