fix: show native Claude CLI usage as unpriced

src/agent/claude-code/constants.ts

@@ -1,4 +1,4 @@
-export const CLAUDE_CODE_PROVIDER = "claude-code";
+export { CLAUDE_CODE_PROVIDER } from "../../core/contracts/claude-code.ts";
 
 export const CLAUDE_CODE_API = "claude-code-cli";
 

src/agent/claude-code/provider.ts

@@ -7,8 +7,8 @@ const SHARED_MODEL_FIELDS = {
 	provider: CLAUDE_CODE_PROVIDER,
 	baseUrl: "",
 	input: ["text", "image"],
-	// Placeholder rates, not a billing guarantee: the CLI's own auth/routing
-	// determines charges. Cost presentation remains a separate product decision.
+	// Pi-required placeholders, not prices: the CLI's own auth/routing
+	// determines charges. Server pricing and the client catalog report unpriced.
 	cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
 	reasoning: true,
 	// The CLI has no thinking-off switch; effort low is the floor.

src/core/contracts/claude-code.ts

@@ -1,3 +1,5 @@
+export const CLAUDE_CODE_PROVIDER = "claude-code";
+
 /** Installation/version only. Never an authentication, quota, or billing verdict. */
 export interface ClaudeCodeStatus {
 	state: "not-found" | "meets-minimum" | "update-required" | "version-unchecked";

src/core/contracts/models.ts

@@ -21,7 +21,8 @@ export interface ModelCatalogEntry {
 	 * thinkingLevelMap — e.g. GLM-5.3-flash: low|high|max). The thinking
 	 * picker lists exactly these; anything else is a lie. */
 	supportedLevels: ThinkingLevel[];
-	cost: { input: number; output: number; cacheRead: number; cacheWrite: number };
+	/** Null when LearnHarness cannot estimate prices for this connection. */
+	cost: { input: number; output: number; cacheRead: number; cacheWrite: number } | null;
 	contextWindow: number;
 	maxTokens: number;
 }

src/core/index.ts

@@ -54,7 +54,7 @@ export type { ChatGPTStatus, ChatGPTControlBridge } from "./contracts/chatgpt.ts
 export { NATIVE_SUBSCRIPTIONS } from "./contracts/subscriptions.ts";
 export type { NativeSubscriptionProviderId, NativeSubscriptionLogicalId, NativeSubscriptionStatus, NativeSubscriptionSnapshot, NativeSubscriptionScope, NativeSubscriptionControlBridge, SubscriptionInteraction, SubscriptionPrompt } from "./contracts/subscriptions.ts";
 export * from "./cost-summary.ts";
-export { CLAUDE_CODE_MINIMUM_VERSION, type ClaudeCodeStatus } from "./contracts/claude-code.ts";
+export { CLAUDE_CODE_PROVIDER, CLAUDE_CODE_MINIMUM_VERSION, type ClaudeCodeStatus } from "./contracts/claude-code.ts";
 export * from "./fuzzy.ts";
 // settings.ts + settings-resolution.ts (settings-storage wave, 2026-09-19):
 // the user-settings record's shape/sanitizer (pure) and its fully-resolved

src/server/model-catalog.ts

@@ -164,7 +164,7 @@ export function toModelDto(model: Model<Api>): ModelDto {
 		reasoning: model.reasoning,
 		input: [...model.input],
 		supportedLevels: getSupportedThinkingLevels(model),
-		cost: {
+		cost: model.provider === CLAUDE_CODE_PROVIDER ? null : {
 			input: model.cost.input,
 			output: model.cost.output,
 			cacheRead: model.cost.cacheRead,

src/server/pricing.ts

@@ -4,12 +4,15 @@
  */
 import { calculateCost, type Usage } from "@earendil-works/pi-ai";
 import { piModels } from "../agent/models.ts";
+import { CLAUDE_CODE_PROVIDER } from "../core/contracts/claude-code.ts";
 import type { CallUsage, ChatRecord, JobRecord, TurnUsage } from "../core/contracts.ts";
 import { isSubscriptionModel, sessionCost as foldSessionCost, turnCost as foldTurnCost, jobCost as foldJobCost } from "../core/prices.ts";
 
 function catalogModel(id: string) {
 	const colon = id.indexOf(":");
-	if (colon < 0 || isSubscriptionModel(id)) return undefined;
+	// Native CLI routing determines billing. Adapter zero-rate placeholders
+	// must never become an apparent $0 estimate or subscription classification.
+	if (colon < 0 || isSubscriptionModel(id) || id.slice(0, colon) === CLAUDE_CODE_PROVIDER) return undefined;
 	return piModels().getModel(id.slice(0, colon), id.slice(colon + 1));
 }