Canonical AI event

Sandboxed agents now support repository pinning and edits across sessions.

Sandboxed agents now support private repositories with GITHUB_READ_TOKEN authentication.

19 Oct 20261 verified claims1 sources1 observations
What happened

The official source reports this update: v3.1.5. Changelog New Features: Repositories for Sandboxed Agents : A sandboxed ClaudeAgent or CodexAgent takes repository=Repository(url, branch="main") and starts every session in that repository at /workspace/repository . The first turn pins the exact commit, later turns keep the pin and the engineer's edits across warm reuse and checkpoint restore, and private repositories authenticate with GITHUB_READ_TOKEN from the sandbox environment. See cookbook . ( #11121 ) S3 Checkpoint Store : S3CheckpointStore(bucket, prefix=..., endpoint_url=...)

Why it matters

This official update documents a development concerning v3.1.5. Its practical significance depends on the scope and evidence stated by the source.

What to watch next

Read the official source update and verify its stated scope, evidence and timing before acting on it.

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