Research

Engineering and research deep-dives from the team building Viktor.

How We Built Viktor Around Prompt Caching

How Viktor's thread engine is designed around prompt caching: SDK instead of tool loading, append-only threads, in-cache compaction, and an 80% cost cut.

June 8, 2026Toni Albert

What Breaks When Your Agent Has 100,000 Tools

Most AI agents demo well and fall apart in production. Here's what we learned about tool use, context windows, memory, and UX while building an AI coworker that connects to 3,000+ integrations.

March 3, 2026Peter Albert