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brainsparker/README.md

Hi, I'm Brian πŸ‘‹

Product @ you.com. I build open-source tools for the AI-agent stack β€” MCP infrastructure, LLM cost routing, and the small dev utilities I wish already existed.

My work clusters around two ideas: making agents cheaper and more portable to run, and removing everyday friction for the people building them.

πŸ”­ What I'm building now

  • frugal β€” a cost-optimized MCP server + proxy router that picks the cheapest model and toolchain for each task. Drop-in, single Go binary.
  • MCP-Profiles β€” reusable, model-independent identity for AI agents: an MCP gateway that re-exposes downstream tools per profile. Same model, different agents.
  • you.md β€” an open protocol for portable user preferences and context across AI-assisted dev tools.

πŸ“¦ More open source

Project What it does
PromptLens Lightweight prompt & agent evaluation tool
superpaste Makes the macOS clipboard great again
free-mail-merge Upload a CSV β†’ get a mail-merged PDF
skills GTM skills for product builders β€” positioning, messaging & narrative

🧰 Mostly working in

Go Β· TypeScript Β· Python Β· MCP Β· LLM tooling

πŸ”— Elsewhere

sparker.co Β Β·Β  @PeerReview on X Β Β·Β  building at you.com

Brian's GitHub stats

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  1. skills skills Public

    GTM skills for product builders β€” Claude skills for positioning, messaging, and narrative work.

    1

  2. frugal frugal Public

    Cost-optimized MCP server and proxy router for Claude, Cursor, and any agent. Picks the cheapest model + toolchain per use case. Drop-in, Go binary, BUSL-1.1.

    Go 1 1

  3. MCP-Profiles MCP-Profiles Public

    Reusable, model-independent identity for AI agents β€” an MCP gateway that re-exposes downstream MCP tools per profile. Same model, different agents.

    TypeScript

  4. you.md you.md Public

    an open protocol for portable user preferences and context across AI-assisted development tools

    TypeScript 2