Finding / grok-build
2026-10-13-grok-build-the-binary-documents-a-cursor-worker-whose-implementation-is-absent-from-the-public-mirror
The binary documents a Cursor worker whose implementation is absent from the public mirror. The shipped artifacts expose a packaging/source discrepancy and a documented execution-backend capability for Cursor Cloud Agents. Private Cursor and Grove paths are absent from public history. Source-location strings do not prove every path is reachable. The probes do not establish when this capability was introduced or that no code changed during the window.
Channel: tagged-release (text and source-location strings in inspected 1.0.45, 1.0.46, 1.0.50 and 1.0.52 artifacts); account-gated and off by default. Half: both. Date: 2026-10-13 (packaging observation, not an introduction date).
Operator consequence: Leave worker startup off on credential-bearing hosts until its authority is understood. Leaving any_repo off alone does not establish a repository allowlist because of the documented clone-pool door. Verify both doors and actual command confinement before enabling the worker. Public permission crates are readable, but they are not a complete account of the installed binary.
Receipt
- https://github.com/xai-org/grok-build/blob/2bdd1d6a6369de0e8c68132ea4539e9abd9e14a8/crates/codegen/xai-grok-shell/src/leader/cursor_worker_stub.rs#L1-L24
- https://github.com/xai-org/grok-build/blob/2bdd1d6a6369de0e8c68132ea4539e9abd9e14a8/crates/codegen/xai-grok-shell/src/leader/mod.rs#L54-L55
- https://storage.googleapis.com/grok-build-public-artifacts/cli/grok-1.0.45-linux-x86_64?generation=1790661872193104
- https://storage.googleapis.com/grok-build-public-artifacts/cli/grok-1.0.52-linux-x86_64?generation=1791762841427964
- https://github.com/xai-org/grok-build/blob/2bdd1d6a6369de0e8c68132ea4539e9abd9e14a8/README.md#L31-L35
Finding metadata
Run: 2026-10-13-profile-refresh-2026-09-21_2026-10-13-frontier-v0
Finding ID: 2026-10-13-grok-build-the-binary-documents-a-cursor-worker-whose-implementation-is-absent-from-the-public-mirror
Profile citations
- grok-build / claim / cursor-worker-private-source
Source links
Primary links, including exact changelog lines when available.
- tagged commit file2026-10-13-grok-build-the-binary-documents-a-cursor-worker-whose-implementation-is-absent-from-the-public-mirrorxai-org/grok-build / crates/codegen/xai-grok-shell/src/leader/cursor_worker_stub.rs#L1-L24tagged commit file2026-10-13-grok-build-the-binary-documents-a-cursor-worker-whose-implementation-is-absent-from-the-public-mirrorxai-org/grok-build / crates/codegen/xai-grok-shell/src/leader/mod.rs#L54-L55official docs2026-10-13-grok-build-the-binary-documents-a-cursor-worker-whose-implementation-is-absent-from-the-public-mirrorstorage.googleapis.com/grok-build-public-artifacts/cli/grok-1.0.45-linux-x86_64official docs2026-10-13-grok-build-the-binary-documents-a-cursor-worker-whose-implementation-is-absent-from-the-public-mirrorstorage.googleapis.com/grok-build-public-artifacts/cli/grok-1.0.52-linux-x86_64tagged commit file2026-10-13-grok-build-the-binary-documents-a-cursor-worker-whose-implementation-is-absent-from-the-public-mirrorxai-org/grok-build / README.md#L31-L35