CSV Schema Profiler

Data Validator & Profiler — CSV JSON XML schema inference

perryay/data-validator-profiler

Validate and profile CSV, JSON, and XML datasets. Auto-detects schema (column types, null ratios, uniqueness), flags anomalies (mixed types, high nulls), and produces a detailed profile report. Supports batch mode for multiple datasets.

Profile CSV, JSON and JSONL files for missing fields, duplicates, mixed types, cardinality and numeric/string statistics.

CSV Join Quality Checker

junipr/csv-join-quality-checker

Check whether two CSV files are safe to join by analyzing key coverage, null keys, duplicates, type mismatches, whitespace/case drift, cardinality, unmatched rows, and likely row multiplication.

Schema.org Vocabulary Drift Monitor

defenestrator/schema-org-vocabulary-drift-monitor

Monitor the official Schema.org JSON-LD vocabulary for watched term changes, replacements, removals, and release drift.

Dataset QA Auditor

junipr/dataset-qa-auditor

Validate Apify dataset rows for schema drift, null spikes, duplicate keys, type mismatches, and delivery-readiness issues. Outputs row-level QA results plus a summary report.

Check authorized GET endpoints against an OpenAPI contract and report machine-readable schema drift in one run.

Chrome Web Store Permission Drift Monitor

zentrafoundry/chrome-web-store-permission-drift-monitor

Watch extensions for permission drift, manifest/version drift, rating shocks, category movement, and listing removals.

Dataset Schema Guard — Validate & Quarantine Records

orangepinlabs/dataset-schema-guard

Validate any Apify dataset with required fields, types, ranges, regex, allowed values, lengths, uniqueness, and unexpected-field checks. Separate valid records from rejected records with exact failure reasons.

Monitor Google's public Discovery API directory and selected discovery documents for API version, preferred flag, revision, schema, and method-surface drift.