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Research, ideas, and updates.

Research

Searching a billion tokens of agent data

How our data agent uses evals-as-indexes for better, faster, cheaper search.

Fixes Without EvidenceDetects coding sessions where edits and final claims are not grounded in observed repository/test evidence.Past 7 DaysFilter traces.../3224168006/30 8pm7/1 2pm7/2 8am7/3 2am7/3 8pm7/4 2pm7/5 8am7/6 2am7/6 8pmTimestampAa NameInputOutput2026-07-07 20:08:23Claude_AgentNow look for any adjacent edge cases ...{"content":[{"text":"##2026-07-07 20:08:23Claude_AgentAdd coverage for the edge case you ...{"content":[{"text":"Per2026-07-07 20:08:22Claude_AgentThis todo_list module is used by other...{"content":[{"text":"Und2026-07-07 20:08:21Claude_AgentRun the full test suite and report ...{"content":[{"text":"Fai2026-07-07 20:08:21Claude_AgentCheck for a regression around empty ...{"content":[{"text":"**

Product

A Missing Primitive for AI Agent Improvement

How labels make production traces useful for agent improvement.

Research

Agent Judge: Solving Long-Horizon Evals for Production Agents

Why long-horizon agents need agentic judges that can search, verify, and adapt.

Company

Announcing $32M in Funding Led by Greenoaks and Lightspeed

Infrastructure for improving AI agents from production data.

Perspective

Climbing the Hills That Matter

Exploring the challenges with current evaluation methods and proposing a new approach grounded in production data.