Brian Sparker: AI agents, MCP servers & macOS apps

Product @ You.com. I build open-source AI-agent infrastructure, MCP (Model Context Protocol) tools, and native macOS utilities for people who want their software to feel faster, cheaper, and more useful.

My work clusters around two ideas: making AI agents more capable and portable, and removing everyday friction from the software people use all day.

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⭐ Featured projects

you.md Stop reintroducing yourself to AI. An open protocol for portable AI context: one human-readable Markdown file that tells Claude, Cursor, Windsurf, Codex, Gemini, and any AGENTS.md agent how you think, work, and want to be helped. Local-first, user-owned, versioned in Git. ~/.you.md ─┬─ MCP ────→ Claude · Cursor · Windsurf └─ export ─→ CLAUDE.md · AGENTS.md · GEMINI.md npm i -g @brainsparker/you-md you-md init -i ~/.you.md && you-md skill install

SuperPaste Press ⌥V. The right text appears wherever you're typing. A native macOS AI paste app. One hotkey captures the active window, generates the right reply (a Slack message, an email, the next line of code), and pastes it at your cursor. No app switching, no prompting. cursor in any text field → ⌥V → active window captured → AI writes the reply → pasted in place Bring your own key (Anthropic, OpenAI, OpenRouter, or local models via Ollama / LM Studio) and it's free. No telemetry.

🔭 Also building

Project	What it does
YouAgent	CLI-first, open-source AI agent framework with A2A agent cards, You.com web search, and knowledge graphs
frugal	Open routing layer for AI tools: an MCP server that routes agent tool calls (search, extract, browse) across 8 providers by cost, latency, and policy, with failover. One Go binary, BYOK
MCP-Profiles	Context-aware web search MCP server that reads your project's AGENTS.md and turns it into agent-shaped queries (npx -y @brainsparker/you-aware)
PromptLens	Lightweight open-source prompt & LLM agent evaluation tool
youcom-haystack	You.com web search component for Haystack RAG pipelines, with a keyless free tier
skills	Claude skills for product builders: GTM positioning, messaging & narrative
free-mail-merge	Upload a CSV → get a mail-merged PDF (great for mailing labels)

🧪 You.com API examples

Small MIT-licensed apps and starters for building with the You.com Search and Research APIs. Start with you-101: seven runnable, zero-dependency scripts in Node and Python.

you-deep-research · you-chat · you-fact-checker · you-sheets · you-company-researcher · you-market-researcher · you-news-brief · you-site-research · you-meeting-prep · you-app-template

🧰 Mostly working in