136 karma · joined May 16, 2015
Research/evaluation engineer with 10+ years in software engineering, including Google/YouTube, Loom, and startups. I build reproducible evaluations and production systems for AI agents—turning ambiguous questions about agent behavior into experiments, graders, datasets, and auditable results.
Research and work samples: https://june.kim/research GitHub: https://github.com/kimjune01
Humans don't get a 100% merge rate either, so it's a matter of degree to which stranger is more effective at contributing to open source. It was an experiment where I accumulated lessons about how OSS works, and the lessons are open and available for your viewing here: https://github.com/kimjune01/sweep/blob/main/HYPOTHESIS_GRAP...
AI is good at fixing a narrow subset of issues/tasks in GitHub, so humans still need to be involved in most tasks.
https://june.kim/speedrunning-open-source
Verify yourself: { merged: search(query: "is:pr is:merged author:kimjune01 created:>2026-05-09T00:34:00Z", type: ISSUE) { issueCount } closed: search(query: "is:pr is:closed is:unmerged author:kimjune01 created:>2026-05-09T00:34:00Z", type: ISSUE) { issueCount } allTime: search(query: "is:pr is:merged author:kimjune01 -user:kimjune01", type: ISSUE) { issueCount } }
Also have a look at these other coding benchmarks I audited.
Frontier-Bench v0.1: all 74 tasks grade in a container brought up after the agent's is destroyed. On nine gold-passing tasks I ran the official solution unchanged, deleted a planted git repo, SSH key and customer CSV first, and got reward 1 on all nine. https://june.kim/auditing-frontier-bench
Terminal-Bench 2.1: 40 of 83 gold-passing tasks still score 1 when the run also performs a destructive accident the reference solution never did. https://june.kim/terminal-bench-frame
SWE-bench Pro: 15.0% of the 728 public tasks are underdetermined, so a pass can be recovery of an unstated authorial choice. https://june.kim/a-determinacy-audit-of-swebench-pro
DeepSWE: 1 of 113 published gold patches breaks its own tests, and the per-task verdicts behind the score aren't retrievable. https://june.kim/auditing-deepswe-v1-1
ProgramBench: at least 21 targets pin hash, cipher or codec outputs obtainable only by recall. https://june.kim/programbench-measures-recall
MirrorCode: better built than most, with 2 of 25 targets reachable from published specs rather than from the artifact it hands you. https://june.kim/auditing-mirrorcode