migrate_v1_to_v2
Analyze Pydantic v1 code to identify migration issues for v2 and optionally apply fixes.
Instructions
Analyze a snippet or model source for common Pydantic v1-to-v2 migration issues.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| code | No | ||
| target | No | ||
| apply_fixes | No |
Output Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| result | No | ||
| artifacts | No | ||
| diagnostics | No | ||
| resolved_target | No |
Implementation Reference
- src/pydantic_mcp/tools.py:239-268 (handler)The main handler function for migrate_v1_to_v2 which processes code or target model for migration issues.
def migrate_v1_to_v2( code: str | None = None, target: str | None = None, apply_fixes: bool = False, ) -> ToolResponse: """Analyze a snippet or model source for common Pydantic v1-to-v2 migration issues.""" if code is None and target is None: return make_response( diagnostics=[ Diagnostic( level="error", message="Provide either `code` or `target`.", code="missing_input", ) ], result={"findings": [], "risk_level": "none", "updated_code": None}, ) if code is None and target is not None: runtime_target = resolve_target( target, registry=REGISTRY, settings=SERVER_SETTINGS, ) code = inspect.getsource( runtime_target.model_class or runtime_target.annotation ) response = migration_report(code, apply_fixes=apply_fixes) response.resolved_target = runtime_target.resolved return response return migration_report(code or "", apply_fixes=apply_fixes) - src/pydantic_mcp/server.py:20-50 (registration)Registration of the migrate_v1_to_v2 tool in the server module.
migrate_v1_to_v2 = _tools.migrate_v1_to_v2 parse_partial_json = _tools.parse_partial_json generate_model_from_json = _tools.generate_model_from_json server_capabilities = _resources.server_capabilities models_index = _resources.models_index model_metadata = _resources.model_metadata model_schema = _resources.model_schema model_examples = _resources.model_examples reference_overview = _resources.reference_overview project_settings = _resources.project_settings project_import_roots = _resources.project_import_roots recent_errors = _resources.recent_errors migration_rules = _resources.migration_rules changed_models = _resources.changed_models __all__ = [ "SERVER_NAME", "SERVER_SETTINGS", "SERVER_VERSION", "build_capabilities", "changed_models", "compare_validation_modes", "create_example_payload", "explain_model", "generate_json_schema", "generate_model_from_json", "inspect_type", "list_models", "main", "mcp", "migrate_v1_to_v2",