skill-plus

skill-plus is a plugin for Claude Code from osouthgate/agent-plus. Its manifest loads nothing; the 1 skill it bundles cost 104 tokens per session together, scanned A, original, MIT.

A local tool for turning repeated work patterns in Claude Code session records into project-specific skills, checking existing skills, and collecting feedback about them. Claude Code is a coding assistant that can use instructions called skills.

In plain words
What is it for?
Use it to create skills from repeated sessions, review their quality, collect local ratings and friction notes, and promote frequently used skills to a marketplace.
Why use it?
It helps turn recurring instructions into reusable guidance and shows where existing skills cause problems, without sending the records to an online service.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest. Also seen: reads .claude/ paths; mentions Claude Code.

Good fit Use it to create skills from repeated sessions, review their quality, collect local ratings and friction notes, and promote frequently used skills to a marketplace.

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Install in Claude Code
/plugin marketplace add osouthgate/agent-plus
/plugin install skill-plus
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/osouthgate/agent-plus

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 skill-plus

README.md
[![agentmods](https://agentmods.dev/badge/plugins/osouthgate/agent-plus/skill-plus/github.svg)](https://agentmods.dev/plugins/osouthgate/agent-plus/skill-plus)
Your own site
<a href="https://agentmods.dev/plugins/osouthgate/agent-plus/skill-plus"><img src="https://agentmods.dev/badge/plugins/osouthgate/agent-plus/skill-plus/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 skill-plus

Your own site · 80×15
<a href="https://agentmods.dev/plugins/osouthgate/agent-plus/skill-plus"><img src="https://agentmods.dev/badge/plugins/osouthgate/agent-plus/skill-plus.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 1 skill cost 104 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 original No closer match found in the catalogue.
Security

Grade A, and why

skill-plus 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 1mo 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.

skill-plus/.claude-plugin/plugin.json · 14 lines

What it actually says

{
  "name": "skill-plus",
  "description": "The fifth universal primitive of the agent-plus framework. Mines real Claude Code session transcripts to surface repeated tool-use patterns, scaffolds them into project-scoped Claude skills (`.claude/skills/<name>/`), audits existing skills against a quality contract, and closes the loop with a cross-source feedback aggregator that joins explicit skill-feedback ratings against implicit session-mining failure signals. Stdlib Python, local-only, no network. Promote skills you keep using to your `<user>/agent-plus-skills` marketplace with one command.",
  "version": "0.7.1",
  "author": {
    "name": "Oliver Southgate",
    "url": "https://github.com/osouthgate"
  },
  "homepage": "https://github.com/osouthgate/agent-plus",
  "repository": "https://github.com/osouthgate/agent-plus",
  "license": "MIT",
  "keywords": ["skills", "scaffolding", "session-mining", "telemetry", "agent-tooling", "self-improvement", "claude-code"]
}
Contents

What it installs

The manifest is a name and a version. 1 skill travel with it, and installing the plugin installs all of them — 104 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. 1mo ago First seen · 14 lines scan A b283b1b1b9ba

Subscribe to this mod's changes

skill-plus is a plugin published in the GitHub repository osouthgate/agent-plus (4 stars, last pushed 3mo ago), licensed MIT. 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 2026-08-31.