pip install goldencheck

pip install goldencheck[llm]

pip install goldencheck[baseline]

pip install goldencheck[baseline,semantic]

npm install goldencheck

import { scanData, TabularData } from "goldencheck/core";

import { readFile, scanData } from "goldencheck/node";

# Scan a file — discovers issues, launches interactive TUI
goldencheck data.csv

# CLI-only output (no TUI)
goldencheck data.csv --no-tui

# With LLM enhancement (requires API key)
goldencheck data.csv --llm-boost --no-tui

# Validate against saved rules (for CI/pipelines)
goldencheck validate data.csv

# JSON output for CI integration
goldencheck data.csv --no-tui --json

# Learn baseline (one-time, deep analysis)
goldencheck baseline data.csv

# Scan with drift detection (fast, uses saved baseline)
goldencheck scan new_data.csv

// Scan an array of records (edge-safe — works anywhere)
import { scanData, TabularData, Severity } from "goldencheck";

const data = new TabularData([
  { id: 1, email: "alice@example.com", age: 30, status: "active" },
  { id: 2, email: "bob@test.com", age: -5, status: "inactive" },
  { id: 3, email: "not-an-email", age: 25, status: "active" },
]);

const { findings, profile } = scanData(data);
for (const f of findings) {
  console.log(`[${f.severity === Severity.ERROR ? "ERROR" : "WARNING"}] ${f.column}: ${f.message}`);
}

// Scan a CSV file (Node.js)
import { readFile, scanData, applyConfidenceDowngrade, healthScore } from "goldencheck/node";

const data = readFile("data.csv");
const result = scanData(data, { domain: "healthcare" });
const findings = applyConfidenceDowngrade(result.findings, false);

// Health score
const byCol = {};
for (const f of findings) {
  if (f.severity >= 2) {
    byCol[f.column] ??= { errors: 0, warnings: 0 };
    byCol[f.column][f.severity === 3 ? "errors" : "warnings"]++;
  }
}
const { grade, points } = healthScore(byCol);
console.log(`Health: ${grade} (${points}/100)`);

// Validate against pinned rules
import { readFile, scanData, validateConfig, validateData } from "goldencheck/node";
import { readFileSync } from "node:fs";
import YAML from "yaml";

const config = validateConfig(YAML.parse(readFileSync("goldencheck.yml", "utf-8")));
const data = readFile("data.csv");
const findings = validateData(data, config);

// Create baseline and detect drift
import { readFile, createBaseline, serializeBaseline, scanData } from "goldencheck/node";
import { runDriftChecks, deserializeBaseline } from "goldencheck";
import { writeFileSync, readFileSync } from "node:fs";

// Learn baseline
const data = readFile("reference.csv");
const baseline = createBaseline(data);
writeFileSync("baseline.json", serializeBaseline(baseline));

// Later: detect drift
const newData = readFile("production.csv");
const saved = deserializeBaseline(readFileSync("baseline.json", "utf-8"));
const driftFindings = runDriftChecks(newData, saved);

// LLM-enhanced scanning (edge-safe)
import { scanData, TabularData, callLlm, parseLlmResponse, mergeLlmFindings, buildSampleBlocks } from "goldencheck";

const data = new TabularData(records);
const result = scanData(data, { returnSample: true });
const blocks = buildSampleBlocks(result.sample, result.findings);
const { text } = await callLlm("anthropic", JSON.stringify(blocks));
const llmResponse = parseLlmResponse(text);
if (llmResponse) {
  const enhanced = mergeLlmFindings(result.findings, llmResponse);
}

1. SCAN     →  goldencheck data.csv
                GoldenCheck profiles your data and discovers what "healthy" looks like

2. REVIEW   →  Interactive TUI shows findings sorted by severity
                Each finding has: description, affected rows, sample values

3. PIN      →  Press Space to promote findings into permanent rules
                Dismiss false positives — they won't come back

4. EXPORT   →  Press F2 to save rules to goldencheck.yml
                Human-readable YAML with your pinned rules

5. VALIDATE →  goldencheck validate data.csv
                Enforce rules in CI with exit codes (0 = pass, 1 = fail)