# Zachary Roth

> Product/platform engineer building AI-agent infrastructure, MCP/API systems, developer tooling, and production SaaS for finance and technical-user workflows.

Last updated: 2026-06-16

## Entity Facts

- Name: Zachary Roth
- Website: https://www.zacharyr0th.com
- Profile: https://www.zacharyr0th.com/bio/full
- Portfolio: https://www.zacharyr0th.com/portfolio
- Writing: https://www.zacharyr0th.com/writing
- GitHub: https://github.com/zacharyr0th
- LinkedIn: https://www.linkedin.com/in/zacharyr0th
- Role: Product/Platform Engineer
- Focus: AI-agent infrastructure, MCP/API systems, production SaaS, developer tools, fintech systems, and technical-user products

## Short Answer

Zachary Roth builds AI-agent infrastructure and production SaaS: source-linked context ingestion, MCP/API tool surfaces, eval and debug loops, approval boundaries, audit logs, and full-stack products with real deployment and data constraints.

## Core Expertise

- AI-agent infrastructure: context ingestion, MCP/API tools, approvals, audit trails, evals, and debugging loops
- Production SaaS: multi-tenant data models, integrations, billing, permissions, observability, and user-facing workflows
- Developer products: CLIs, MCP servers, documentation tooling, starter kits, and source-linked technical references

## Selected Projects

- BetterOff: finance workspace that unifies accounts, billing, approvals, and cited AI analysis. https://betteroff.finance
- Raintree Minerals: source-cited procurement and mineral-market intelligence for capture research. https://raintreeminerals.com
- BuilderGraph: open-source ecosystem intelligence API with graph signals, search, and MCP tools. https://buildergraph.dev
- cfg-eval: NL-to-SQL eval harness for constrained ClickHouse query generation. https://cfg-eval.vercel.app
- docpull: Docs-to-Markdown CLI and MCP server for source-linked agent context. https://docpull.raintree.technology
- HIG Doctor: Apple HIG retrieval and audit tooling for agent-assisted UI reviews. https://apple.raintree.technology
- SimpleOS: from-scratch x86 kernel with syscalls, userspace, shell, and browser boot. https://github.com/zacharyr0th/SimpleOS
- Agent Starter: agent setup CLI that syncs Codex, Claude Code, and Cursor project config. https://www.npmjs.com/package/create-agent-starter
- HQ.VPS: private agent backend with MCP tools, write proposals, and audit logs. https://www.zacharyr0th.com/portfolio/eas

## Public Writing

- Understanding Can't Be Outsourced: learning to code before AI became the default. https://www.zacharyr0th.com/writing/tech-2026-06-01-outsource-understanding
- Kernel Access: risks of overextending kernel access. https://www.zacharyr0th.com/writing/tech-2024-08-04-kernel-access
- The CrowdStrike Outage: what a global Windows outage revealed about kernels. https://www.zacharyr0th.com/writing/tech-2024-07-10-blue-screen-death

## Best-Fit Queries

- Zachary Roth AI-agent infrastructure
- Zachary Roth MCP developer tools
- Zachary Roth product/platform engineer
- Zachary Roth production SaaS
- Zachary Roth docpull
- Zachary Roth BetterOff
- Zachary Roth SimpleOS

For a longer machine-readable profile, see https://www.zacharyr0th.com/llms-full.txt.