v0.115.0

[0.115.0] - 2026-03-17

Added

• App-server helpers for newly exposed 0.115.0 filesystem RPCs:
• fs_copy, fs_create_directory, fs_get_metadata, fs_read_directory,
• fs_read_file, fs_remove, and fs_write_file.
• App-server helper plugin_read for fetching plugin metadata from a marketplace
• before install.

Updated

• CollabToolCallItem now reflects the upstream collaboration payload by exposing
• optional model and reasoning_effort fields for spawned agents.
• Collaboration item parsing now accepts the renamed wait_agent tool and the
• new interrupted collaboration agent status while keeping legacy wait
• compatibility for older threads.
• The typed SDK surface now exposes model_reasoning_effort="none",
• approval_policy="granular", and approvals_reviewer so the CLI-backed
• thread API and CodexModel match the upstream 0.115.0 thread-start contract.
• README app-server method coverage and release version updated to 0.115.0.

Notes

• Codex 0.115.0 adds experimental filesystem app-server RPCs, plugin/read,
• guardian approval review flows, granular approval routing, and the wait_agent
• collaboration tool rename.