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When to use incremental tool updates instead of legacy streaming?

Thắng Đoàn
Thắng Đoàn

If your Codex setup on Google Cloud Vertex AI relied on legacy batched tool updates, the new incremental default changes that behavior. One config.toml flag reverts to the old mode if you need it.

What it is

Codex now sends tool updates incrementally by default on Google Cloud Vertex AI, so updates stream as they happen instead of via the legacy behavior. Developers can opt out through a feature flag in config.toml.

Applied case

A developer running Codex against Google Cloud Vertex AI gets incremental tool updates automatically after this release, with no action required. If their setup depends on the legacy update behavior, they add the opt-out flag under [features] in config.toml. The release notes attribute the change to pull requests 60617 and 60848 in the Codex repo.

  • Incremental tool updates on Vertex AI are now the default; one config flag reverts to legacy

When to use it

Use when you run Codex on Vertex AI and want tool updates streamed incrementally. Skip when a pipeline depends on the legacy update behavior.

[features]
incremental_tools_legacy_gcp = false

Read more

Codex 0.167.2 release notes

PR 60617

PR 60848

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