Field notes / Writing

Notes from the workbench.

Decisions, trade-offs, and implementation details from the AI agents, MCP servers, and real-time systems I build.

01May 18, 2026Real-Time Voice for an Agentic AssistantNotes on building full-duplex voice for Quanta — a custom PCM16 AudioWorklet, Gemini Live, and bridging Twilio's µ-law audio into the same pipeline.02March 2, 2026Hand-Rolling PKCE OAuth for an MCP ServerWhy we implemented RFC 6749 + RFC 7636 PKCE OAuth from scratch for Rectify's HTTP MCP server instead of reaching for a library, and what RFC 9728 metadata bought us.