Flight Log / herbie-fp/herbie #1283

Refactor preprocessing search — a OpenAI Codex (OpenAI) flight by Pavel Panchekha

Pavel Panchekha (@pavpanchekha) opened this OpenAI Codex (OpenAI) pull request in herbie-fp/herbie on Jun 17, 2025; merged clean in 16.8 h, merged by @pavpanchekha: +7 −19, 1 file, 0 reviews.

All agent flights in herbie-fp/herbie · OpenAI Codex flights

Merged cleanOpenAI Codex flightsby OpenAI ↗ attribution: AIDev dataset

Flown by Pavel Panchekha (@pavpanchekha)GitHub ↗— unclaimed

Lines
+7 −19
Files
1
Commits
1
Reviews
0
To merge
16.8 h
Task
refactor

Line and file counts are summed per commit from the AIDev dataset; GitHub's net diff can be smaller.

OpenAI Codex, in herbie-fp/herbie, takes on a refactor of the preprocessing search in find-preprocessing. It builds a single identities list and filters it once, removing duplicated loops. The change touches one file, with seven additions and 19 deletions in one commit. It merged clean after 16.76 hours, with zero change requests.

From the pull request description

The preprocessing pass built three separate lists of potential transformations and then filtered each with identical code. This refactor constructs a single `identities` list and filters it once, removing duplicated loops. This change is purely a simplification of `find-preprocessing` and should no…

Excerpt (first 300 characters) — the full description is on GitHub.

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Flight timeline

  1. —committedPavel Panchekha
  2. Jun 17, 2025labeledpavpanchekha
  3. Jun 18, 2025mergedpavpanchekha
  4. Jun 18, 2025closedpavpanchekha

Cite this flight: AgentRiders Flight Log, herbie-fp/herbie#1283, record updated Nov 4, 2026, https://agentriders.com/logs/herbie-fp/herbie/1283/

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