Remove case-colliding duplicate model files and add a CI guard

.github/scripts/check-case-collisions.ts

@@ -0,0 +1,53 @@
+import { execSync } from 'child_process';
+import path from 'path';
+
+const REPO_ROOT = path.resolve(__dirname, '..', '..');
+
+function getTrackedPaths(): string[] {
+  const output = execSync('git ls-files', {
+    cwd: REPO_ROOT,
+    encoding: 'utf-8',
+  });
+  return output.split('\n').filter((line) => line.length > 0);
+}
+
+function findCaseCollisions(paths: string[]): string[][] {
+  const byLowerCasePath = new Map<string, string[]>();
+
+  for (const filePath of paths) {
+    const key = filePath.toLowerCase();
+    const group = byLowerCasePath.get(key);
+    if (group) {
+      group.push(filePath);
+    } else {
+      byLowerCasePath.set(key, [filePath]);
+    }
+  }
+
+  return [...byLowerCasePath.values()].filter((group) => group.length > 1);
+}
+
+function main(): void {
+  const paths = getTrackedPaths();
+  const collisions = findCaseCollisions(paths);
+
+  if (collisions.length > 0) {
+    console.error(
+      `Found ${collisions.length} path(s) that collide when compared case-insensitively:\n`,
+    );
+    for (const group of collisions) {
+      console.error(`  - ${group.join('\n  - ')}`);
+    }
+    console.error(
+      '\nTracked paths that differ only by letter case break `git clone`/`git checkout` on ' +
+        'case-insensitive filesystems (macOS, Windows) and can make CI (Linux, case-sensitive) ' +
+        'silently ship duplicate or divergent records for the same file. Rename or remove one ' +
+        'path from each group above so every tracked path is unique case-insensitively.',
+    );
+    process.exit(1);
+  }
+
+  console.log(`Checked ${paths.length} tracked paths, no case collisions found.`);
+}
+
+main();

.github/workflows/validate.yml

@@ -36,3 +36,22 @@ jobs:
       - name: Run validation
         run: ./.github/test/validate.sh
 
+  check-case-collisions:
+    name: Check for case-colliding paths
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run check
+        run: npm run check:case-collisions
+

package.json

@@ -5,6 +5,7 @@
   "private": true,
   "scripts": {
     "validate": "./.github/test/validate.sh",
+    "check:case-collisions": "ts-node --project .github/scripts/tsconfig.json .github/scripts/check-case-collisions.ts",
     "generate:types": "ts-node --project .github/scripts/tsconfig.json .github/scripts/generate-types.ts",
     "build:json": "ts-node --project .github/scripts/tsconfig.json .github/scripts/build-unified-json.ts",
     "lint:yaml": "yamllint -c .yamllint.yml providers/",

providers/wafer/deepseek-v4-pro.yaml

@@ -7,6 +7,11 @@ features:
     - function_calling
 limits:
     context_window: 1000000
+modalities:
+    input:
+        - text
+    output:
+        - text
 mode: chat
 model: deepseek-v4-pro
 params: