claude-plugin-converter

claude-plugin-converter is a skill for Claude Code from moonlight-lupin/agent-skills. It costs 21 tokens per session (3,457 once invoked), scanned A, original, MIT.

A converter that turns Claude Code plugins into self-contained Hermes Agent plugins. It first checks what can be converted, then creates an installable Hermes plugin.

In plain words
What is it for?
Use it with a Claude plugin folder, Git URL, or marketplace entry to bundle its skills, hooks, and MCP settings into one Hermes plugin directory.
Why use it?
It helps when a plugin made for Claude Code needs to work in Hermes Agent. The initial check also shows possible conversion limits before files are generated.

Skill for Claude Code

Written for Claude Code: ${CLAUDE_PLUGIN_ROOT} variable. Also seen: mentions Claude Code.

Runs only inside a plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else, and the catalogue could not identify which plugin ships it.

Good fit Use it with a Claude plugin folder, Git URL, or marketplace entry to bundle its skills, hooks, and MCP settings into one Hermes plugin directory.

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Install

Getting it into your agent

There is no command for this one: it runs only inside a plugin, and the catalogue could not identify which plugin ships it. The source is linked below.

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 claude-plugin-converter

README.md
[![agentmods](https://agentmods.dev/badge/skills/moonlight-lupin/agent-skills/claude-plugin-converter/github.svg)](https://agentmods.dev/skills/moonlight-lupin/agent-skills/claude-plugin-converter)
Your own site
<a href="https://agentmods.dev/skills/moonlight-lupin/agent-skills/claude-plugin-converter"><img src="https://agentmods.dev/badge/skills/moonlight-lupin/agent-skills/claude-plugin-converter/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 claude-plugin-converter

Your own site · 80×15
<a href="https://agentmods.dev/skills/moonlight-lupin/agent-skills/claude-plugin-converter"><img src="https://agentmods.dev/badge/skills/moonlight-lupin/agent-skills/claude-plugin-converter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,457 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original 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 $0.00021 $0.03457
Opus 5 $0.00010 $0.01729
Sonnet 5 $0.00004 $0.00691
Haiku 4.5 $0.00002 $0.00346

Measured 11d ago against content hash b361025f9f50, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

claude-plugin-converter scanned grade A 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 11d ago.

The scan reads SKILL.md. This mod also ships 3 executable files (scripts/analyze.py, scripts/convert.py, tests/test_converter.py), 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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

**Only convert plugins from sources you trust.** The converter reads shell commands, Python hooks, and MCP server configurations from the source plugin and reproduces them in the Hermes output. Converted hooks may execut
agent-ops/claude-plugin-converter/SKILL.md · 246 lines

How it starts

The opening of the file, as written. The whole thing — 246 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Claude Plugin Converter

Convert a Claude Code plugin (.claude-plugin/plugin.json manifest + components) into a self-contained, installable Hermes plugin (plugin.yaml + __init__.py + bundled skills/hooks).

When to Use

  • User wants to use a Claude Code plugin with Hermes Agent
  • User says "convert this Claude plugin" or "make this work with Hermes"
  • User provides a Claude plugin directory, git URL, or marketplace reference

Overview

Two-phase workflow:

  1. Discovery — analyze the Claude plugin, report what can/can't be converted
  2. Conversion — generate a complete Hermes plugin directory the user can install with hermes plugins enable <name>

The output is a single self-contained Hermes plugin — skills, hooks, and MCP config all bundled inside one ~/.hermes/plugins/<name>/ directory. Not scattered artifacts.

⚠️ Security & Trust Boundary

Only convert plugins from sources you trust. The converter reads shell commands, Python hooks, and MCP server configurations from the source plugin and reproduces them in the Hermes output. Converted hooks may execute shell commands from the source plugin via subprocess.run(..., shell=True, ...).

Before enabling a converted plugin:

  • Review hooks.py — inspect every subprocess.run call and _CMD_* variable for dangerous commands
  • Review __init__.py — check what's registered (tools, hooks, slash commands)
  • Review mcp_config.yaml — verify MCP server commands and env vars are safe
  • Review MANUAL_STEPS.md — understand what the converter couldn't automate

Do not blindly convert and enable plugins from untrusted GitHub repos or marketplaces without reviewing the generated output first.

Phase 1: Discovery

Run the analysis script:

python3 {SKILL_DIR}/scripts/analyze.py <claude_plugin_dir> --output <output_dir>/analysis.json

The script reads .claude-plugin/plugin.json and all component directories, producing structured JSON with convertibility assessments for each component.

Read the full file on GitHub · 246 lines

Files

What ships with it

4 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. 11d ago First seen · 246 lines · 21 tokens per session scan A b361025f9f50

Subscribe to this mod's changes

claude-plugin-converter is a skill published in the GitHub repository moonlight-lupin/agent-skills (62 stars, last pushed 4d ago), licensed MIT. It adds 21 tokens to every session and 3,457 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.