Codex 2.0 Migration

Codex 2.0 redesigns data access around validated chunked snapshots, catalog APIs, and local-only Streamable HTTP.

Load validated snapshots

Load and validate snapshot data through the 2.0 snapshot APIs before serving or querying it. Use loadSnapshot and validateSnapshot for snapshot boundaries; use the parsing helpers for individual snapshot parts.

Query through catalogs

Replace direct document-data access with SnapshotCatalog and the Catalog API. Catalog methods provide the supported package, content, and search access paths.

Use local-only HTTP hosting

Move Streamable HTTP integrations to startHttpHost. Configure it for loopback use only; do not expose Codex's HTTP host on public interfaces.

Review the Usage Guide and API Reference for 2.0 snapshot, catalog, server, and HTTP contracts.