Sosumi plugin

Sosumi makes Apple Developer documentation readable by AI agents. This plugin connects your agent to Sosumi's remote MCP server and adds a skill that tells the agent when and how to use it.

What's included

MCP server sosumi at https://sosumi.ai/mcp (Streamable HTTP). It needs no account, API key, or sign-in. It provides four read-only tools:
- searchAppleDocumentation searches Apple Developer documentation.
- fetchAppleDocumentation reads API reference and Human Interface Guidelines pages as Markdown.
- fetchAppleVideoTranscript reads WWDC and other Apple video transcripts.
- fetchExternalDocumentation reads public Swift-DocC pages on other hosts.
Skill sosumi, which tells the agent to look up Apple APIs with Sosumi instead of relying on memory.

Install

Claude Code

/plugin marketplace add NSHipster/sosumi.ai
/plugin install sosumi@sosumi-ai

Other clients

This folder has a manifest for each supported client:

Client	Manifest	MCP configuration
Claude Code	`.claude-plugin/plugin.json`	`mcpServers` in that manifest
Cursor	`.cursor-plugin/plugin.json`	`mcpServers` in that manifest
ChatGPT, Codex, and other Agent Plugins clients	`plugin.json`	`mcp.json`

All of them load the skill from skills/sosumi/SKILL.md.

To connect only the MCP server, see the client instructions at https://sosumi.ai/#mcp.

Usage

Ask about any Apple API, and the agent fetches the current documentation. For example:

"How do I use NavigationStack in SwiftUI? Check Apple's documentation."
"What do the Human Interface Guidelines say about color?"
"Summarize the WWDC21 session about protecting mutable state with Swift actors."

Configuration

The plugin has no settings.

Support

Report problems: https://github.com/NSHipster/sosumi.ai/issues
Support: https://sosumi.ai/support
Privacy policy: https://sosumi.ai/privacy
Terms of use: https://sosumi.ai/terms

Sosumi is an unofficial, independent project and is not affiliated with or endorsed by Apple Inc.

License

MIT. See LICENSE.