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## What changed - Share a lazily registered runtime across threads, model discovery, and extension clients when `runtime_agent_instances` is enabled, while honoring each thread's authentication mode and credential owner. - Bind model catalogs to the effective provider and authentication context while preserving cache policy and live API-key discovery settings. - Resolve credentials, routing, and transport policy together for each request. Preserve proxy and TLS settings, validate runtime account selectors, and prevent pooled connections from crossing runtime identities. - Accept supported ChatGPT subdomains when selecting the registration environment. ## Testing Add integration coverage for shared runtime registration, dual-header and assertion-only modes, disabled and third-party providers, credential replacement, subagents, and delegated review. Add coverage for catalog cache policy and runtime-aware connection reuse. GitOrigin-RevId: 99dd9d987c29c93597a648f6586f98ac6a932c3c
ThreadManager Sample
Small one-shot binary that starts a Codex thread with ThreadManager from
codex-core-api, submits a single user turn, and prints the final assistant
message.
Authentication uses the configured credential storage under CODEX_HOME, including
cli_auth_credentials_store, mcp_oauth_credentials_store, and
features.secret_auth_storage. Local managed authentication requirements and auth
routing settings are respected. This also applies to cargo run builds. Other
execution settings remain the sample's built-in configuration.
cargo run -p codex-thread-manager-sample -- "Say hello"
Use --model to override the configured default model:
cargo run -p codex-thread-manager-sample -- --model gpt-5.2 "Say hello"
The prompt can also be piped through stdin:
printf 'Say hello\n' | cargo run -p codex-thread-manager-sample