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.
git clone --depth 1 https://github.com/SummerSec/SumSec-SkillsWrote 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.
[](https://agentmods.dev/plugins/summersec/sumsec-skills/plugin-dev)<a href="https://agentmods.dev/plugins/summersec/sumsec-skills/plugin-dev"><img src="https://agentmods.dev/badge/plugins/summersec/sumsec-skills/plugin-dev/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.
<a href="https://agentmods.dev/plugins/summersec/sumsec-skills/plugin-dev"><img src="https://agentmods.dev/badge/plugins/summersec/sumsec-skills/plugin-dev.svg" alt="Reviewed on agentmods" width="80" height="20"></a>Grade A, and why
plugin-dev 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.
What it actually says
{
"name": "plugin-dev",
"version": "1.0.47",
"description": "Claude Code 插件开发工具箱:7 个核心 skill(agent/command/hook/skill/MCP/插件结构与设置)+ 3 个 agent(agent-creator、plugin-validator、skill-reviewer)+ /plugin-dev:create-plugin 引导式工作流。",
"author": {
"name": "Anthropic",
"email": "[email protected]"
}
}
What it installs
The manifest is a name and a version. 7 skills, 1 command, 3 agents travel with it, and installing the plugin installs all of them — 1,391 tokens a session between them. Each is measured on its own page, and each can be installed alone.
- Skill skill-development A 63 tokens
- Skill command-development A 99 tokens
- Skill hook-development A 117 tokens
- Skill agent-development A 80 tokens
- Skill plugin-structure A 93 tokens
- Skill mcp-integration B 98 tokens
- Skill plugin-settings B 81 tokens
- Command create-plugin A 16 tokens
- Agent agent-creator A 254 tokens
- Agent plugin-validator A 241 tokens
- Agent skill-reviewer A 249 tokens
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.
- 1mo ago Changed fd1560f8c97b
- 1mo ago Changed f739ea5c60f6
- 1mo ago First seen · 10 lines scan A 5e6162d2f496
plugin-dev is a plugin published in the GitHub repository SummerSec/SumSec-Skills (8 stars, last pushed 1mo ago), licensed Apache-2.0. 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.
Other plugins, from other repositories
causal-memory
Persistent causal memory for Claude Code — decisions, outcomes, and lessons that survive compaction. Same-context counterfactuals (natural experiments), a falsifiable prediction ledger, and an activation skill that teaches when to recall and record.
helloagents
HelloAGENTS — The orchestration kernel that makes any AI CLI smarter. Adds intelligent routing, unified QA gates, safety guards, and notifications.
coding-coach
A collection of skills for non-developers who want to turn an idea into a launched product. It covers engineering, product work, interface design, writing, and deployment.
semantic-linter
Semantic-Linter detects semantic trap words in LLM instruction files (Skill/Prompt/Agent). Identifies wide-boundary vocabulary that may cause hallucination or scope creep.
humanizer
Rewrite AI-sounding text so it reads like the writer without changing what it says.
nextjs
Official Next.js skills: adopt and optimize Cache Components, adopt Partial Prefetching, and verify runtime behavior against a running dev server.