Matt Polly

Software Engineer
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Systems Engineering from First Principles

A first-principles treatment of software systems engineering — reasoning from fundamentals rather than inherited patterns to arrive at clearer mental models for architecture, reliability, and design tradeoffs.

A clinical intake agent that guides users through a symptom questionnaire and surfaces supplement recommendations backed by PubMed citations. Built on a supplement knowledge graph and iDISK, with a privacy-preserving session model — no conversation data is stored.

Rust Knowledge Graph LLM Clinical NLP

Infrastructure-as-code patterns and examples from real-world AWS deployments.

AWS Terraform Infrastructure
OpenClaw Skills

Two privacy-first skills for the OpenClaw agent platform. Both run entirely locally, require no npm dependencies, and are built on Node.js built-in modules — no build step, no supply chain risk.


Fraud Filter

A community trust network for AI agent payment endpoints. Downloads nightly satisfaction scores, verifies endpoints before transactions, and submits anonymous outcome reports. Endpoint URLs are SHA-256 hashed; amounts are bucketed into ranges — no transaction details leave the machine.

Spend Ledger

A tamper-evident local ledger that tracks payments made through OpenClaw wallet tools. Detects payments via hook integration, records them in a hash-chained JSONL log, and surfaces spending history through a localhost-only dashboard. Includes loop detection and chain integrity verification.

Node.js Privacy-first Agent Infrastructure Zero Dependencies
PractitionerNotes 2012–2016

An EHR and patient portal for complementary medicine practitioners. Features customizable SOAP notes, treatment and billing code libraries, superbill generation, and patient-facing iOS/Android apps — built for acupuncturists and CAM providers underserved by Western-medicine EHR systems.

Healthcare EHR HIPAA iOS/Android