# clm_D5755C4D94C5

subject: OpenAI (/record/openai.md)  
predicate: feature_added  
value: native sandbox execution  
valid_from: 2026-04-15  
valid_to: null  
published: 2026-04-15  
recorded: 2026-11-01  
confidence: 0.70  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-01  
checked: 2026-11-01 · its source page states the value and the date (its publisher's feed entry for the page)  

> OpenAI updates the Agents SDK with native sandbox execution and a model-native harness, helping developers build secure, long-running agents across files and tools

What https://openai.com/index/the-next-evolution-of-the-agents-sdk says, word for word.

## Sources

- https://openai.com/index/the-next-evolution-of-the-agents-sdk (primary, OpenAI, published 2026-04-15)

---

AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.
