we reached 97% of the 3.5K original Enzyme files
Charles Covey-BrandtAuthor of the Airbnb engineering blog post on LLM test migration (role not stated on the page) · Practitioner, 
Airbnb
Post: Accelerating Large-Scale Test Migration with LLMs, Airbnb engineering blog, March 2025.
Charles Covey-Brandt, Author of the Airbnb engineering blog post on LLM test migration (role not stated on the page). Wrote the post describing the migration the employer carried out, so the account is first-hand; it is also Airbnb's own account of its project.
Checked against the source by a first reader, then confirmed independently by a second reader who fetched the source without seeing the first reader's notes (Independent review agent (Claude Sonnet), blind second pass from passage text and citation only, no repository access, 2026-10-31).
Raw HTML matched exactly: 'After four days of prompt and script refinement using the "sample, tune, and sweep" strategy, we reached 97% of the 3.5K original Enzyme files.' The post's byline text names Covey-Brandt, and the sentence uses 'we', so I read it as the author's own words.
Charles Covey-Brandt (Airbnb), “Accelerating Large-Scale Test Migration with LLMs”, Airbnb engineering blog, 2025-03. https://airbnb.tech/?p=366 Archived at https://the-ai-record.com/passages/airbnb-reached-97-3-5k-original-enzyme-files-2025
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