chore(vendor): import pi 1.3.0

Imported as a linear vendor commit so forge rebases do not replay the upstream root tree.

git-subtree-dir: third_party/pi

git-subtree-split: 71023aec1546d6d677a65669c5665c0927ce0dd0

third_party/pi/packages/ai/scripts/openrouter-catalog.ts

@@ -0,0 +1,105 @@
+import { type OpenRouterModel, openRouterCost } from "../src/providers/openrouter-api.ts";
+import type { ClassifierModel, ImageModel, Model } from "../src/types.ts";
+import { getOpenRouterThinkingLevelMap, type OpenRouterReasoningMetadata } from "./openrouter-reasoning-options.ts";
+
+export interface OpenRouterModelListItem extends OpenRouterModel {
+	name: string;
+	supported_parameters?: string[];
+	architecture?: { modality?: string; input_modalities?: string[]; output_modalities?: string[] };
+	reasoning?: OpenRouterReasoningMetadata;
+}
+
+export interface OpenRouterCatalog {
+	chat: Model<"anthropic-messages" | "openai-completions">[];
+	images: ImageModel<"openrouter-images">[];
+	classifiers: ClassifierModel<"typesafe-system-one">[];
+}
+
+function modalities(values: string[] | undefined): ("text" | "image")[] {
+	return Array.from(
+		new Set((values ?? []).filter((value): value is "text" | "image" => value === "text" || value === "image")),
+	);
+}
+
+/**
+ * Build the OpenRouter catalog from the default listing and the
+ * `output_modalities=image` and `output_modalities=decisions` listings. The
+ * default listing omits image-only and decision models, so those come from
+ * the other listings. An upstream model may appear in several results; it then
+ * gets separate entries per operation.
+ */
+export function buildOpenRouterCatalog(
+	listed: readonly OpenRouterModelListItem[],
+	imageListed: readonly OpenRouterModelListItem[],
+	decisionListed: readonly OpenRouterModelListItem[],
+): OpenRouterCatalog {
+	const chat: OpenRouterCatalog["chat"] = [];
+
+	for (const model of listed) {
+		// Only include models that support tools
+		if (!model.supported_parameters?.includes("tools")) continue;
+		// Parse input modalities
+		const input: ("text" | "image")[] = ["text"];
+		if (model.architecture?.modality?.includes("image")) {
+			input.push("image");
+		}
+
+		const thinkingLevelMap = getOpenRouterThinkingLevelMap(model.reasoning);
+		const useAnthropicMessages = /^anthropic\//.test(model.id) && !model.id.endsWith(":batch");
+		chat.push({
+			type: "chat",
+			id: model.id,
+			name: model.name,
+			api: useAnthropicMessages ? "anthropic-messages" : "openai-completions",
+			baseUrl: useAnthropicMessages ? "https://openrouter.ai/api" : "https://openrouter.ai/api/v1",
+			provider: "openrouter",
+			reasoning: model.supported_parameters?.includes("reasoning") || false,
+			...(thinkingLevelMap && { thinkingLevelMap }),
+			input,
+			cost: openRouterCost(model.pricing),
+			contextWindow: model.top_provider?.context_length || model.context_length || 4096,
+			maxTokens: model.top_provider?.max_completion_tokens || 4096,
+		});
+	}
+
+	const images: OpenRouterCatalog["images"] = [];
+	for (const model of imageListed) {
+		if (images.some((entry) => entry.id === model.id)) continue;
+		const output = modalities(model.architecture?.output_modalities);
+		if (!output.includes("image")) continue;
+		const input = modalities(model.architecture?.input_modalities);
+		images.push({
+			type: "image",
+			id: model.id,
+			name: model.name,
+			api: "openrouter-images",
+			provider: "openrouter",
+			baseUrl: "https://openrouter.ai/api/v1",
+			input: input.length > 0 ? input : ["text"],
+			output,
+			cost: openRouterCost(model.pricing),
+		});
+	}
+
+	// Decision models such as TypeSafe's Jev are served through OpenRouter's
+	// TypeSafe-compatible System One endpoint.
+	const classifiers: OpenRouterCatalog["classifiers"] = [];
+	for (const model of decisionListed) {
+		if (classifiers.some((entry) => entry.id === model.id)) continue;
+		if (!model.architecture?.output_modalities?.includes("decisions")) continue;
+		const input = modalities(model.architecture.input_modalities);
+		classifiers.push({
+			type: "classifier",
+			id: model.id,
+			name: model.name,
+			api: "typesafe-system-one",
+			provider: "openrouter",
+			baseUrl: "https://openrouter.ai/api/v1",
+			input: input.length > 0 ? input : ["text"],
+			cost: openRouterCost(model.pricing),
+			contextWindow: model.top_provider?.context_length || model.context_length || 4096,
+		});
+	}
+
+	return { chat, images, classifiers };
+}