AJV JSON Validator

Purpose & User Intent: The tool validates JSON data against a JSON Schema using AJV, addressing backend developers, API engineers, and data engineers who require runtime conformance checks before processing, persisting, or contracting API responses. It is used when data payloads must adhere to a defined schema to ensure reliability, data quality, and contract testing.\n\nCore Logic & Features: Core capabilities include loading a schema, compiling with AJV, validating data, and returning structured errors. Required features: support for multiple AJV draft versions, proper $ref resolution, allErrors option, and strict mode. Optional/advanced features: custom keywords, formats, asynchronous validation, schema caching, and integration with external schemas.\n\nInputs & Outputs: Inputs: schema (JSON object), data (any), options (object with AJV options such as strict, coerceTypes, allErrors). Outputs: valid (boolean); errors (array of objects with dataPath, schemaPath, keyword, message, params).\n\nAlgorithms & Calculations: Uses AJV to compile the schema and run validate(data). When allErrors is enabled, collects all violations; error objects are normalized to a consistent schema; path fields map to the JSON data structure; performance is improved by schema pre-compilation; supports format checks as per the schema.\n\nError & Edge Cases: Invalid or circular schemas trigger compile errors; data with extra properties may fail in strict mode; missing inputs or non-JSON content fail gracefully with a descriptive error in the output structure; unresolved $ref to external schemas may require pre-fetching or dedicated loader; very large schemas may need streaming or chunking.\n\nIndustry/Region & Localization: Aligns with JSON Schema standards (draft-07/2013, 2019-09); no locale-specific formatting; outputs and messages are JSON-native for downstream consumption.\n\nAssumptions & Exclusions: Assumes inputs are valid JSON objects; does not perform UI rendering, data transformation, or storage; not a data generation tool; does not enforce business rules beyond the schema.