Kazuhiro Sera
seratch@openai.com
90d · built 2026-05-28
90-day totals
- Commits
- 344
- Grow
- 16.3
- Maintenance
- 33.9
- Fixes
- 22.4
- Total ETV
- 72.6
Where this dev ranks
Percentile against the global top-100 leaderboard (all-time totals).
- By commits
- Top 13 %
- By Growth share
- Top 78 %
30-day trajectory
Last 30 days vs. the 30 days before. Up arrows on Growth and ETV mean improvement; up arrow on Fixes share means more time on fixes (worse).
Daily performance
Daily ETV, stacked by Growth, Maintenance and Fixes.
Work-mix over time
Share of Growth / Maintenance / Fixes over a rolling 7-day window. Reads as 'where is effort flowing right now'.
Bug flow over time
Monthly bug flow attributed to this developer. The left bar (red) is bug impact this dev authored that was addressed in the given month — combining bugs others fixed for them and bugs they fixed themselves. The right bar is fixes they personally shipped that month, split between self-fixes (overlap with the red bar) and fixes done for someone else. X-axis is fix-time, not introduction-time — the Navigara API attributes bugs backward to the author at the moment the fix lands.
- Self-fix share
- 31%
- Bugs you introduced
- 16.3
- Bugs you fixed
- 39.9
Repository spread
Where this developer's commits land. Concentrated work (top1 > 80%) vs polymath spread (top1 < 30%).
| Repo | Commits | ETV |
|---|---|---|
| openai-agents-js | 172 | 40.9 |
| openai-agents-python | 156 | 31.7 |
Most impactful commits
Top 20 by ETV in the 90-day window.
- 3.5ETVfeat: add opt-in model retry policies (#2651)github.com-openai-openai-agents-python · 3a526734 · 2026-03-12
- 3.2ETVfix: isolate parallel function tool failures (#2584)github.com-openai-openai-agents-python · 933a3a93 · 2026-03-03
- 2.9ETVfeat: #855 add opt-in model retry policies (#1083)github.com-openai-openai-agents-js · 9bcc3f3b · 2026-03-12
- 2.6ETVfix: preserve duplicate-name agent identity in RunState serialization (#1243)github.com-openai-openai-agents-js · dde10375 · 2026-05-06
- 2.0ETVfix: align sandbox mounts with Python and protect rclone credentials (#1228)github.com-openai-openai-agents-js · 00b40324 · 2026-05-05
- 1.9ETVfix: serialize SQLite session writes with shared file locks (#2843)github.com-openai-openai-agents-python · 6a89f1b5 · 2026-04-04
- 1.8ETVfix: #2962 normalize sandbox paths and add Windows CI (#2963)github.com-openai-openai-agents-python · cc57bb16 · 2026-04-20
- 1.7ETVfix(mcp): resolve MCP server wrapper issues (#1118)github.com-openai-openai-agents-js · 05dd5132 · 2026-03-22
- 1.3ETVfix(realtime): defer response.create until the previous turn finishes (#1127)github.com-openai-openai-agents-js · 36a368b7 · 2026-03-25
- 1.3ETVfeat: add any-llm model support with responses-compatible routing (#2706)github.com-openai-openai-agents-python · 1c0ff599 · 2026-03-25
- 1.1ETVfix(agents-core): rehydrate custom client tool_search runtime tools on resume (#1067)github.com-openai-openai-agents-js · b2e52364 · 2026-03-06
- 1.1ETVfix: support sandbox filesystem runAs across providers (#1224)github.com-openai-openai-agents-js · 2d2501ae · 2026-05-04
- 0.9ETVfix: include sandbox provider error details (#3326)github.com-openai-openai-agents-python · 94ba76de · 2026-05-10
- 0.9ETVfix: migrate ComputerTool to the GA computer tool (#1073)github.com-openai-openai-agents-js · 4e6b3fbd · 2026-03-07
- 0.9ETVfeat: expose agent tool invocation metadata on run results (#1040)github.com-openai-openai-agents-js · e9f701e1 · 2026-03-02
- 0.7ETVfeat: align local MCP config with the Python SDK (#1255)github.com-openai-openai-agents-js · 06301082 · 2026-05-06
- 0.7ETVfeat: add opt-in recovery for missing function tools (#1336)github.com-openai-openai-agents-js · 1ce54042 · 2026-05-21
- 0.7ETVfix: make tracing shutdown best-effort on process exit (#1306)github.com-openai-openai-agents-js · 2d398010 · 2026-05-11
- 0.7ETVfix: add configurable sandbox archive extraction limits (#1299)github.com-openai-openai-agents-js · 8e59259a · 2026-05-10
- 0.7ETVfeat: #2228 persist tool origin metadata in run items (#2654) Co-authored-by: Hassan Abu Alhaj <136383052+habema@users.noreply.github.com>github.com-openai-openai-agents-python · 47ecb38d · 2026-04-15