From 84628f670a87f733c2dbdd4a760224844e90029e Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 22 Sep 2026 17:40:41 +0000
Subject: [PATCH 1/3] Initial plan


From f81855168b241cbefdf88ea72f1610b0fbb78343 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 22 Sep 2026 17:46:02 +0000
Subject: [PATCH 2/3] Fix use-baseline schema stack overflow

Co-authored-by: nzakas <38546+nzakas@users.noreply.github.com>
---
 src/rules/use-baseline.js   | 30 ++++++++++--------------------
 tests/plugin/eslint.test.js | 36 ++++++++++++++++++++++++++++++++++++
 2 files changed, 46 insertions(+), 20 deletions(-)

diff --git a/src/rules/use-baseline.js b/src/rules/use-baseline.js
index 1107a170..e1c340e3 100644
--- a/src/rules/use-baseline.js
+++ b/src/rules/use-baseline.js
@@ -543,26 +543,16 @@ export default /** @satisfies {UseBaselineRuleDefinition} */ ({
 					},
 					allowPropertyValues: {
 						type: "object",
-						properties: Object.fromEntries(
-							Array.from(properties.keys()).map(prop => {
-								const values = new Set([
-									...globalKeywords.keys(),
-									...(propertyValues.get(prop)?.keys() ?? []),
-								]);
-
-								return [
-									prop,
-									{
-										type: "array",
-										items: {
-											enum: Array.from(values),
-										},
-										uniqueItems: true,
-									},
-								];
-							}),
-						),
-						additionalProperties: false,
+						propertyNames: {
+							enum: Array.from(properties.keys()),
+						},
+						additionalProperties: {
+							type: "array",
+							items: {
+								type: "string",
+							},
+							uniqueItems: true,
+						},
 					},
 					allowSelectors: {
 						type: "array",
diff --git a/tests/plugin/eslint.test.js b/tests/plugin/eslint.test.js
index 8c60fec0..f62c2f02 100644
--- a/tests/plugin/eslint.test.js
+++ b/tests/plugin/eslint.test.js
@@ -12,6 +12,7 @@ import ESLintAPI from "eslint";
 const { ESLint } = ESLintAPI;
 
 import assert from "node:assert";
+import { execFileSync } from "node:child_process";
 
 //-----------------------------------------------------------------------------
 // Tests
@@ -71,6 +72,41 @@ describe("Plugin", () => {
 			);
 			assert.strictEqual(results[0].messages[0].messageId, "emptyBlock");
 		});
+
+		it("use-baseline config should compile with limited stack space", () => {
+			const pluginUrl = new URL("../../src/index.js", import.meta.url).href;
+			const output = execFileSync(
+				process.execPath,
+				[
+					"--stack_size=100",
+					"--input-type=module",
+					"--eval",
+					`
+						import css from ${JSON.stringify(pluginUrl)};
+						import ESLintAPI from "eslint";
+
+						const { ESLint } = ESLintAPI;
+						const eslint = new ESLint({
+							overrideConfigFile: true,
+							overrideConfig: {
+								files: ["**/*.css"],
+								plugins: { css },
+								language: "css/css",
+								rules: {
+									"css/use-baseline": "error",
+								},
+							},
+						});
+
+						await eslint.calculateConfigForFile("test.css");
+						process.stdout.write("ok");
+					`,
+				],
+				{ encoding: "utf8", cwd: process.cwd() },
+			);
+
+			assert.strictEqual(output, "ok");
+		});
 	});
 
 	describe("languageOptions", () => {

From 69bb161823912b09f0e273bbe9187bacd148747b Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Wed, 23 Sep 2026 13:29:39 +0000
Subject: [PATCH 3/3] Fix bun CI for use-baseline regression test

Co-authored-by: nzakas <38546+nzakas@users.noreply.github.com>
---
 tests/plugin/eslint.test.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tests/plugin/eslint.test.js b/tests/plugin/eslint.test.js
index f62c2f02..3b7d55d5 100644
--- a/tests/plugin/eslint.test.js
+++ b/tests/plugin/eslint.test.js
@@ -74,9 +74,13 @@ describe("Plugin", () => {
 		});
 
 		it("use-baseline config should compile with limited stack space", () => {
-			const pluginUrl = new URL("../../src/index.js", import.meta.url).href;
+			const pluginUrl = new URL("../../src/index.js", import.meta.url)
+				.href;
+			const nodeExecutable = process.versions.bun
+				? "node"
+				: process.execPath;
 			const output = execFileSync(
-				process.execPath,
+				nodeExecutable,
 				[
 					"--stack_size=100",
 					"--input-type=module",