{
  "schema": "codex-model-info",
  "latest": {
    "tag": "rust-v0.163.0",
    "url": "https://data.cp.dev/v1/schema/codex-model-info/latest.json"
  },
  "verified_tags": [
    {
      "tag": "rust-v0.148.0",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.148.0.json"
    },
    {
      "tag": "rust-v0.149.0",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.149.0.json"
    },
    {
      "tag": "rust-v0.150.0",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.150.0.json"
    },
    {
      "tag": "rust-v0.151.0",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.151.0.json"
    },
    {
      "tag": "rust-v0.152.0",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.152.0.json"
    },
    {
      "tag": "rust-v0.153.1",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.153.1.json"
    },
    {
      "tag": "rust-v0.153.4",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.153.4.json"
    },
    {
      "tag": "rust-v0.154.0",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.154.0.json"
    },
    {
      "tag": "rust-v0.155.0",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.155.0.json"
    },
    {
      "tag": "rust-v0.155.1",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.155.1.json"
    },
    {
      "tag": "rust-v0.156.0",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.156.0.json"
    },
    {
      "tag": "rust-v0.156.1",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.156.1.json"
    },
    {
      "tag": "rust-v0.157.0",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.157.0.json"
    },
    {
      "tag": "rust-v0.157.1",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.157.1.json"
    },
    {
      "tag": "rust-v0.158.0",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.158.0.json"
    },
    {
      "tag": "rust-v0.159.0",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.159.0.json"
    },
    {
      "tag": "rust-v0.159.1",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.159.1.json"
    },
    {
      "tag": "rust-v0.159.2",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.159.2.json"
    },
    {
      "tag": "rust-v0.159.3",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.159.3.json"
    },
    {
      "tag": "rust-v0.160.0",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.160.0.json"
    },
    {
      "tag": "rust-v0.160.1",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.160.1.json"
    },
    {
      "tag": "rust-v0.161.0",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.161.0.json"
    },
    {
      "tag": "rust-v0.162.0",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.162.0.json"
    },
    {
      "tag": "rust-v0.162.1",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.162.1.json"
    },
    {
      "tag": "rust-v0.163.0",
      "url": "https://data.cp.dev/v1/schema/codex-model-info/rust-v0.163.0.json"
    }
  ],
  "source_files": [
    "codex-rs/protocol/src/openai_models.rs",
    "codex-rs/protocol/src/openai_models/access_programs.rs",
    "codex-rs/protocol/src/openai_models/incremental_tools.rs",
    "codex-rs/protocol/src/openai_models/guardian.rs",
    "codex-rs/protocol/src/openai_models/guardian_v2.rs",
    "codex-rs/protocol/src/openai_models/reasoning_effort.rs",
    "codex-rs/protocol/src/config_types.rs"
  ],
  "notes": [
    "One schema covers every verified tag: all struct changes across them are additive with serde defaults, so a response valid for 0.148.0 is valid for 0.153.4 and vice versa as far as the client's rejection rules go.",
    "rust-v0.149.0: ModelMessages gained guardian_v2.",
    "rust-v0.150.0: ConfigShellToolType collapsed from five variants (default, local, unified_exec, disabled, shell_command) to unified_exec | disabled with the other three as aliases of unified_exec — same accepted spellings.",
    "rust-v0.151.0: ModelInfo gained multi_agent_reasoning_effort; ModelMessages gained persistent_instructions and confirmation_policies; ReasoningEffort gained persistent.",
    "rust-v0.152.0: ModelMessages gained tools.",
    "rust-v0.153.1 and rust-v0.153.4: openai_models.rs byte-identical to each other; no struct changes since 0.152.0.",
    "rust-v0.154.0: ModelInfo gained guardian (GuardianModelPolicy) and supports_experimental_context. openai_models.rs now declares submodules under openai_models/ (guardian.rs, reasoning_effort.rs; guardian_v2.rs has existed since 0.149.0); snapshots vendor them from this tag on.",
    "rust-v0.155.0 and rust-v0.155.1: sources byte-identical to rust-v0.154.0 (snapshot_aliases).",
    "rust-v0.156.0: ModelInfo gained available_access_programs (ModelAccessPrograms; `cyber` is required when the object is present) and supports_reasoning_effort_updates. ModelMessages.tools gained multi_agent; ToolMessage gained parameters. GuardianModelPolicy dropped code_mode and gained other_tools, unscored_action, initial_cua_call and sandboxed_exec_commands. Personality selection was removed: supports_personality is always false and instructions_variables is deprecated (still decoded). config_types.rs: comment-only change.",
    "rust-v0.157.0: ModelMessages.tools gained code_mode (CodeModeToolMessages).",
    "rust-v0.158.0: ModelMessages.tools gained indirect_description_prefixes and mcp_resources; tools.multi_agent gained the channel tools (create_channel … post). rust-v0.159.0 … rust-v0.159.3: byte-identical to rust-v0.158.0.",
    "rust-v0.160.0: ModelMessages gained content_filter_guidance. rust-v0.160.1: byte-identical.",
    "rust-v0.161.0: GuardianV2ModelConfig gained async_classifier_mode (closed enum: snapshot | conversation) and async_classifier_conversation_token_limit; ModelAccessPrograms gained helper methods only.",
    "rust-v0.162.0: ModelMessages dropped instructions_variables (and the ModelInstructionsVariables struct); catalogs that still send it are accepted because the key is ignored. supports_personality and instructions_template: comment-only changes. rust-v0.162.1: byte-identical.",
    "rust-v0.163.0: ModelMessages.tools gained incremental_tools (IncrementalToolMessages: five optional notice strings; over 512 bytes uses the bundled text) and functions_namespace_functions_description_prefixes (map of string; the 256-byte budget fails the turn, not the catalog). Both decode as optional, so older catalogs stay valid.",
    "Tags after rust-v0.153.4 are vendored by scripts/sync-codex-tags.mjs: a tag whose sources are byte-identical to the previous snapshot is recorded in snapshot_aliases instead of stored again.",
    "Every stored snapshot keeps the client's own bundled catalog (codex-rs/models-manager/models.json at that tag) as a test vector; validate.mjs checks the schema against all of them. The catalogs carry keys the struct does not have (supports_parallel_tool_calls, prefer_websockets, requires_sandboxed_review, supports_reasoning_summaries, available_in_plans, minimal_client_version); the client ignores them."
  ],
  "license": {
    "schema": "CC-BY-4.0",
    "derived_from": "openai/codex (Apache-2.0); source snapshots in the repository under data/codex-schema/sources/"
  }
}