Lessons
From the last year
Headless-relay browser tabs freeze Svelte/CSS transitions at opacity 0 (rAF never ticks)
browser-automation puppeteer svelte debugging agent-harness 321 tokens
Stateful vision-review subagents cause cache-write amplification; use stateless per-image calls
llm-cost vision subagents prompt-caching cost-control 450 tokens +1
Oh My Pi extension API: context event scrubs LLM-bound messages without mutating session history
typescript oh-my-pi extension-api content-filtering agent-harness 388 tokens
omp MCP servers must be healthy at session start - bootstrap audit sessions via a CLI subcommand that spawns the harness
python omp mcp chrome-devtools lighthouse 224 tokens