@geoql/doctor-core

@geoql/doctor-core

The audit engine behind @geoql/vue-doctor and @geoql/nuxt-doctor.

This is the library that does the work. The two CLIs are thin cac wrappers; everything real lives here: the hybrid scan, scoring, reporters, config loading, and project detection. You usually depend on a CLI, not on this package directly. Reach for doctor-core only when you're embedding the audit into your own tool.

What it does

doctor-core runs a hybrid two-pass scan over a Vue 3 or Nuxt 4 project, as locked in docs/SPEC.md §10:

• Pass 1 — template AST. Parses .vue SFCs with @vue/compiler-sfc and walks the template AST in-process. This is the only pass that can see the template, so template-shaped rules (v-for missing :key, v-if/v-for on the same node, inline object props in lists) live here.
• Pass 2 — script ESTree. Spawns oxlint as a subprocess against a generated .oxlintrc.json that turns on oxlint's native vue plugin plus the doctor JS plugins (@geoql/oxlint-plugin-vue-doctor, @geoql/oxlint-plugin-nuxt-doctor). oxlint only hands JS plugins the extracted <script>, so all script-level rules run here.

Diagnostics from both passes are merged and deduped on (file, line, column, ruleId), then collapsed into a deterministic 0–100 score. Scoring uses fixed severity weights (error = 5, warn = 2, info = 0.5) with √-decay on repeat offenders so one noisy rule can't tank the whole score. Same code in, same score out: no randomness, no config-tunable weights.

It also owns the pieces the CLIs surface: the config loader (doctor.config.ts via c12), project/capability detection used to gate rules, the rule registry, and every reporter format.

Install

npm i @geoql/doctor-core

Published on npm and JSR with provenance. ESM-only. knip and oxlint are peer dependencies (the dead-code and script passes shell out to them).

API

The main entry is audit(). It returns a report carrying diagnostics, the numeric score, the score breakdown, detected project info, and a process exit code.

import { audit, format } from '@geoql/doctor-core';

const report = await audit({
  rootDir: process.cwd(),
  include: ['**/*.vue', '**/*.ts'],
  exclude: ['node_modules', 'dist', '.nuxt', '.output'],
  failOn: 'error',
});

for (const d of report.diagnostics) {
  console.log(
    `${d.file}:${d.line}:${d.column} ${d.severity} ${d.ruleId}: ${d.message}`,
  );
}

console.log(`Score: ${report.score}/100`);
console.log(`Exit code: ${report.exitCode}`);

// Render any reporter format. `format()` takes a ReporterInput,
// which you assemble from the report.
process.stdout.write(
  format(
    {
      toolName: '@geoql/vue-doctor',
      toolVersion: '0.1.0',
      rootDirectory: report.rootDir,
      analyzedFileCount: report.filesScanned,
      elapsedMs: report.elapsedMs,
      diagnostics: report.diagnostics,
      score: report.scoreResult,
      projectInfo: report.projectInfo,
    },
    'agent',
  ),
);

Severity is error | warn | info throughout. failOn accepts error | warn | none.

Key exports

Types ship alongside (AuditConfig, AuditReport, Diagnostic, Severity, ReporterFormat, ProjectInfo, ScoreResult, and more).

Scope

Vue 3 and Nuxt 4 only. Nuxt detection expects the app/ directory layout with compatibilityVersion: 4.

Architecture

See docs/SPEC.md §10 for the full two-pass design, the empirical oxlint findings that shaped it, and the canonical Diagnostic shape.

License

MIT © Vinayak Kulkarni