Occ Diagnose

Community

ruvnet

occ-diagnose

Diagnose Open Claude Code installation, provider authentication, skill discovery, and CLI failures. Use when OCC fails to start, returns errors, or cannot find an installed skill.

Overview

Publisher	ruvnet
Repository	`open-claude-code`
Skill name	`occ-diagnose`
Stars	526
Forks	163
Bundled files	Instructions only
License	MIT
Links	Skill source Repository Homepage

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
Self-contained
Everything the model needs lives in the instructions — no extra files to sync.
Open source
Published by ruvnet on GitHub. Read the source before you install it.

Installation

Install the Occ Diagnose AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
https://github.com/ruvnet/open-claude-code/tree/main/skills/occ-diagnose
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/ruvnet/open-claude-code.git /tmp/open-claude-code
mkdir -p .claude/skills
cp -r /tmp/open-claude-code/skills/occ-diagnose .claude/skills/occ-diagnose

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Occ Diagnose in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Occ Diagnose on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Occ Diagnose is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Diagnose Open Claude Code

Capture the failing command, exit status, Node version, and OCC version. Redact credentials and sensitive provider response bodies.
Require Node 20 or newer. Verify npx --yes @ruvnet/open-claude-code@2.1.3 --version and --help before a provider call.
For authentication failures, check only whether the required environment variable is present. Never print its value. Match ANTHROPIC_API_KEY to Anthropic or OPENAI_API_KEY to an OpenAI compatible endpoint. Routing depends on the model name: use --model gpt-4.1-mini for an OpenAI compatible route. Check base URL and model selection without exposing credentials.
For a newly published npm version returning ETARGET or E404, retry metadata/install with a fresh cache and prefer-online for at most five minutes. Do not treat authentication, integrity, or behavioral failures as propagation delays.
For missing skills, inspect project .claude/skills/<name>/SKILL.md and user ~/.claude/skills/<name>/SKILL.md. OCC 2.1.2 follows directory symlinks; project skills override user skills. A broken symlink is ignored.
Claude Code plugins and OCC's custom PluginLoader are different contracts. This repository's native plugin supplies skills to Claude Code; it does not make OCC support every third party Claude plugin.
Reproduce with the smallest allowed tool set, retain sanitized evidence, and propose a targeted fix. Do not delete user configuration or rotate secrets without authorization.

Frequently asked questions

What does the Occ Diagnose AI skill do?

Diagnose Open Claude Code installation, provider authentication, skill discovery, and CLI failures. Use when OCC fails to start, returns errors, or cannot find an installed skill.

Why use Occ Diagnose on TypingMind?

Because you install it once and use it with any model. Occ Diagnose is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Occ Diagnose in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/ruvnet/open-claude-code/tree/main/skills/occ-diagnose. TypingMind reads its SKILL.md and installs it as a skill you can enable per chat.

Which AI models can use Occ Diagnose?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Occ Diagnose?

As many as you like. As long as a model supports skills, you can use Occ Diagnose with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Occ Diagnose AI skill free?

Yes. It is published on GitHub by ruvnet under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

Diagnose Open Claude Code

Frequently asked questions

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