utils/ts_config/eslint/playwright.js
Krzysztof kuhy Rudnicki 128ede438e ts_config: @kuhyx/ts-config, the one lint/TS bar every TypeScript repo extends
Evil Martians' "ten anti-AI-slop moves" as a package: strict tsconfig base
(noUncheckedIndexedAccess, exactOptionalPropertyTypes), type-checked
typescript-eslint strict+stylistic, unicorn/sonarjs/perfectionist, behaviour
rules for tests (expect-expect, no-focused-tests), React (hooks, @eslint-react,
jsx-a11y strict, you-might-not-need-an-effect), Playwright, and layer
boundaries via eslint-plugin-boundaries 7 with the article's default policies.
Knip / jscpd / Stryker bases; Stryker carries no break threshold on purpose.

Plugins are dependencies, not devDependencies: a flat config imports them from
this package's own node_modules, so a consumer installing from the git tag
gets them or the lint cannot run. No build step, so the tag needs no prepare.

test/fixture is a mini repo with one planted violation per rule family;
test/expected.js names the rule that must catch each, and the suite runs the
real CLI over it (in a child process -- v8 coverage merges natively-loaded
and transformed copies of the same module into "uncovered"). 35 tests, 100%
branch coverage on the factories.

eslint/fast.js is the type-free subset for a per-edit hook: 0.52 s cold on
one file, measured against 1.28 s for base() without types -- importing a
plugin is the cost, so it loads none, nor base.js which imports them.

Probed under ESLint 10: jsx-a11y 6.10.2 (peer says <=9) and boundaries 7.2.0
both run; the fixture pins that.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DnAYyNH1Sm4iJNidfYbrZJ
2026-09-16 21:40:08 +02:00

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JavaScript

// End-to-end specs. No kuhyx repo had Playwright on 2026-09-16; the preset
// ships so the first one that does gets the same bar without inventing it.
//
// The rules that matter most for model-written e2e: a conditional inside a
// test (the test passes whichever branch runs), a forgotten `await` on an
// async matcher (the assertion never fires), and `.only`.
import playwright from "eslint-plugin-playwright";
/** @type {import("eslint").Linter.Config[]} */
export const playwrightConfig = [
{
...playwright.configs["flat/recommended"],
files: ["**/e2e/**", "**/*.e2e.{ts,js}", "**/*.pw.{ts,js}"],
rules: {
...playwright.configs["flat/recommended"].rules,
"playwright/missing-playwright-await": "error",
"playwright/no-conditional-in-test": "error",
"playwright/no-focused-test": "error",
"playwright/no-skipped-test": "error",
},
},
];