diff --git a/packages/coding-agent/src/cli/tiny-models-cli.ts b/packages/coding-agent/src/cli/tiny-models-cli.ts
index ce7f29009..02a3be475 100644
--- a/packages/coding-agent/src/cli/tiny-models-cli.ts
+++ b/packages/coding-agent/src/cli/tiny-models-cli.ts
@@ -38,7 +38,10 @@ export function resolveModels(model: string | undefined): TinyLocalModelKey[] {
 	if (!model) return [DEFAULT_TINY_TITLE_LOCAL_MODEL_KEY];
 	// `all` is a prefetch convenience: skip models that fail before load (unsupported
 	// runtime), so the bulk download stays green when every *usable* model succeeds.
-	if (model === "all") return TINY_LOCAL_MODELS.filter(spec => !spec.unsupportedReason).map(spec => spec.key);
+	if (model === "all")
+		return TINY_LOCAL_MODELS.filter(spec => !("unsupportedReason" in spec) || !spec.unsupportedReason).map(
+			spec => spec.key,
+		);
 	if (!isTinyLocalModelKey(model)) {
 		const values = TINY_LOCAL_MODELS.map(spec => spec.key).join(", ");
 		throw new Error(`Unknown tiny local model: ${model}. Expected one of: ${values}, all`);
diff --git a/packages/coding-agent/test/tiny-models-cli.test.ts b/packages/coding-agent/test/tiny-models-cli.test.ts
index 8cd61a9f3..c81e49006 100644
--- a/packages/coding-agent/test/tiny-models-cli.test.ts
+++ b/packages/coding-agent/test/tiny-models-cli.test.ts
@@ -4,19 +4,23 @@ import { TINY_LOCAL_MODELS } from "@oh-my-pi/pi-coding-agent/tiny/models";
 
 describe("tiny-models download model resolution", () => {
 	it("excludes load-blocked models from `all` so the bulk prefetch stays green", () => {
-		const unsupported = TINY_LOCAL_MODELS.filter(spec => spec.unsupportedReason).map(spec => spec.key);
+		const unsupported = TINY_LOCAL_MODELS.filter(spec => "unsupportedReason" in spec && spec.unsupportedReason).map(
+			spec => spec.key,
+		);
 		// Guard: keep this regression meaningful — at least one registry entry must be load-blocked.
 		expect(unsupported.length).toBeGreaterThan(0);
 
 		const all = resolveModels("all");
 		for (const key of unsupported) expect(all).not.toContain(key);
 
-		const usable = TINY_LOCAL_MODELS.filter(spec => !spec.unsupportedReason).map(spec => spec.key);
+		const usable = TINY_LOCAL_MODELS.filter(spec => !("unsupportedReason" in spec) || !spec.unsupportedReason).map(
+			spec => spec.key,
+		);
 		for (const key of usable) expect(all).toContain(key);
 	});
 
 	it("still resolves an explicitly requested unsupported model (only `all` is filtered)", () => {
-		const blocked = TINY_LOCAL_MODELS.find(spec => spec.unsupportedReason);
+		const blocked = TINY_LOCAL_MODELS.find(spec => "unsupportedReason" in spec && spec.unsupportedReason);
 		expect(blocked).toBeDefined();
 		if (!blocked) return;
 		expect(resolveModels(blocked.key)).toEqual([blocked.key]);