ci: probe Claude project scope on Windows

.github/workflows/claude-project-scope-probe.yml

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+name: Claude project scope probe
+
+on:
+  workflow_dispatch:
+  pull_request:
+    branches: [next]
+
+permissions:
+  contents: read
+
+jobs:
+  windows:
+    if: github.event_name == 'workflow_dispatch' || github.head_ref == 'chore/claude-windows-scope-probe'
+    runs-on: windows-latest
+    defaults:
+      run:
+        shell: bash
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
+        with:
+          node-version: "22"
+      - run: npm install -g @anthropic-ai/claude-code
+      - run: node scripts/probe-claude-project-scope.cjs

scripts/probe-claude-project-scope.cjs

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+#!/usr/bin/env node
+const { spawnSync } = require("node:child_process");
+const fs = require("node:fs");
+const os = require("node:os");
+const path = require("node:path");
+
+const root = fs.mkdtempSync(path.join(os.tmpdir(), "aidd-claude-scope-"));
+const project = path.join(root, "project-a");
+const otherProject = path.join(root, "project-b");
+const home = path.join(root, "home");
+const env = { ...process.env, HOME: home, CLAUDE_CONFIG_DIR: path.join(home, ".claude") };
+
+function run(args) {
+  const result = spawnSync("claude", args, {
+    cwd: project,
+    env,
+    encoding: "utf8",
+    timeout: 120000,
+    // npm exposes Claude as claude.cmd on Windows. The production adapter uses cmd.exe too.
+    shell: process.platform === "win32",
+  });
+  if (result.error || result.status !== 0) {
+    throw new Error(`claude ${args.join(" ")} failed: ${result.stderr || result.error?.message || result.status}`);
+  }
+}
+
+try {
+  fs.mkdirSync(project, { recursive: true });
+  fs.mkdirSync(otherProject, { recursive: true });
+  run(["plugin", "marketplace", "add", process.cwd(), "--scope", "local"]);
+  run(["plugin", "install", "aidd-context@aidd-framework", "--yes", "--scope", "local"]);
+
+  const settings = path.join(project, ".claude", "settings.local.json");
+  if (!fs.existsSync(settings)) throw new Error("project scope wrote no .claude/settings.local.json");
+  const enabled = JSON.parse(fs.readFileSync(settings, "utf8")).enabledPlugins;
+  if (enabled?.["aidd-context@aidd-framework"] !== true) {
+    throw new Error("project settings do not enable aidd-context@aidd-framework");
+  }
+  if (fs.existsSync(path.join(otherProject, ".claude", "settings.local.json"))) {
+    throw new Error("a second project received the local plugin settings");
+  }
+  console.log("Claude project-scope install is isolated: project A enabled, project B untouched.");
+} finally {
+  fs.rmSync(root, { recursive: true, force: true });
+}