refactor: finish canonical provider identifier audit

packages/types/src/__tests__/provider-settings.test.ts

@@ -1,107 +1,124 @@
-import { getApiProtocol } from "../provider-settings.js"
+import { ANTHROPIC_API_PROTOCOL, getApiProtocol, OPENAI_API_PROTOCOL, providerIdentifiers } from "../index.js"
 
 describe("getApiProtocol", () => {
 	describe("Anthropic-style providers", () => {
 		it("should return 'anthropic' for anthropic provider", () => {
-			expect(getApiProtocol("anthropic")).toBe("anthropic")
-			expect(getApiProtocol("anthropic", "gpt-4")).toBe("anthropic")
+			expect(getApiProtocol(providerIdentifiers.anthropic)).toBe(ANTHROPIC_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.anthropic, "gpt-4")).toBe(ANTHROPIC_API_PROTOCOL)
 		})
 
 		it("should return 'anthropic' for bedrock provider", () => {
-			expect(getApiProtocol("bedrock")).toBe("anthropic")
-			expect(getApiProtocol("bedrock", "gpt-4")).toBe("anthropic")
-			expect(getApiProtocol("bedrock", "claude-3-opus")).toBe("anthropic")
+			expect(getApiProtocol(providerIdentifiers.bedrock)).toBe(ANTHROPIC_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.bedrock, "gpt-4")).toBe(ANTHROPIC_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.bedrock, "claude-3-opus")).toBe(ANTHROPIC_API_PROTOCOL)
 		})
 	})
 
 	describe("Vertex provider with Claude models", () => {
 		it("should return 'anthropic' for vertex provider with claude models", () => {
-			expect(getApiProtocol("vertex", "claude-3-opus")).toBe("anthropic")
-			expect(getApiProtocol("vertex", "Claude-3-Sonnet")).toBe("anthropic")
-			expect(getApiProtocol("vertex", "CLAUDE-instant")).toBe("anthropic")
-			expect(getApiProtocol("vertex", "anthropic/claude-3-haiku")).toBe("anthropic")
+			expect(getApiProtocol(providerIdentifiers.vertex, "claude-3-opus")).toBe(ANTHROPIC_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.vertex, "Claude-3-Sonnet")).toBe(ANTHROPIC_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.vertex, "CLAUDE-instant")).toBe(ANTHROPIC_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.vertex, "anthropic/claude-3-haiku")).toBe(ANTHROPIC_API_PROTOCOL)
 		})
 
 		it("should return 'openai' for vertex provider with non-claude models", () => {
-			expect(getApiProtocol("vertex", "gpt-4")).toBe("openai")
-			expect(getApiProtocol("vertex", "gemini-pro")).toBe("openai")
-			expect(getApiProtocol("vertex", "llama-2")).toBe("openai")
+			expect(getApiProtocol(providerIdentifiers.vertex, "gpt-4")).toBe(OPENAI_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.vertex, "gemini-pro")).toBe(OPENAI_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.vertex, "llama-2")).toBe(OPENAI_API_PROTOCOL)
 		})
 
 		it("should return 'openai' for vertex provider without model", () => {
-			expect(getApiProtocol("vertex")).toBe("openai")
+			expect(getApiProtocol(providerIdentifiers.vertex)).toBe(OPENAI_API_PROTOCOL)
 		})
 	})
 
 	describe("Vercel AI Gateway provider", () => {
+		it("uses canonical gateway identifiers for Anthropic model protocol selection", () => {
+			expect(getApiProtocol(providerIdentifiers.vercelAiGateway, "anthropic/claude-3-opus")).toBe(
+				ANTHROPIC_API_PROTOCOL,
+			)
+			expect(getApiProtocol(providerIdentifiers.zooGateway, "anthropic/claude-3-opus")).toBe(
+				ANTHROPIC_API_PROTOCOL,
+			)
+		})
+
 		it("should return 'anthropic' for vercel-ai-gateway provider with anthropic models", () => {
-			expect(getApiProtocol("vercel-ai-gateway", "anthropic/claude-3-opus")).toBe("anthropic")
-			expect(getApiProtocol("vercel-ai-gateway", "anthropic/claude-3.5-sonnet")).toBe("anthropic")
-			expect(getApiProtocol("vercel-ai-gateway", "ANTHROPIC/claude-sonnet-4")).toBe("anthropic")
-			expect(getApiProtocol("vercel-ai-gateway", "anthropic/claude-opus-4.1")).toBe("anthropic")
+			expect(getApiProtocol(providerIdentifiers.vercelAiGateway, "anthropic/claude-3-opus")).toBe(
+				ANTHROPIC_API_PROTOCOL,
+			)
+			expect(getApiProtocol(providerIdentifiers.vercelAiGateway, "anthropic/claude-3.5-sonnet")).toBe(
+				ANTHROPIC_API_PROTOCOL,
+			)
+			expect(getApiProtocol(providerIdentifiers.vercelAiGateway, "ANTHROPIC/claude-sonnet-4")).toBe(
+				ANTHROPIC_API_PROTOCOL,
+			)
+			expect(getApiProtocol(providerIdentifiers.vercelAiGateway, "anthropic/claude-opus-4.1")).toBe(
+				ANTHROPIC_API_PROTOCOL,
+			)
 		})
 
 		it("should return 'openai' for vercel-ai-gateway provider with non-anthropic models", () => {
-			expect(getApiProtocol("vercel-ai-gateway", "openai/gpt-4")).toBe("openai")
-			expect(getApiProtocol("vercel-ai-gateway", "google/gemini-pro")).toBe("openai")
-			expect(getApiProtocol("vercel-ai-gateway", "meta/llama-3")).toBe("openai")
-			expect(getApiProtocol("vercel-ai-gateway", "mistral/mixtral")).toBe("openai")
+			expect(getApiProtocol(providerIdentifiers.vercelAiGateway, "openai/gpt-4")).toBe(OPENAI_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.vercelAiGateway, "google/gemini-pro")).toBe(OPENAI_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.vercelAiGateway, "meta/llama-3")).toBe(OPENAI_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.vercelAiGateway, "mistral/mixtral")).toBe(OPENAI_API_PROTOCOL)
 		})
 
 		it("should return 'openai' for vercel-ai-gateway provider without model", () => {
-			expect(getApiProtocol("vercel-ai-gateway")).toBe("openai")
+			expect(getApiProtocol(providerIdentifiers.vercelAiGateway)).toBe(OPENAI_API_PROTOCOL)
 		})
 	})
 
 	describe("Opencode Go provider", () => {
 		it("should return 'anthropic' for opencode-go Anthropic-format models (Qwen/MiniMax)", () => {
-			expect(getApiProtocol("opencode-go", "qwen3.7-max")).toBe("anthropic")
-			expect(getApiProtocol("opencode-go", "qwen3.7-plus")).toBe("anthropic")
-			expect(getApiProtocol("opencode-go", "qwen3.6-plus")).toBe("anthropic")
-			expect(getApiProtocol("opencode-go", "minimax-m3")).toBe("anthropic")
-			expect(getApiProtocol("opencode-go", "minimax-m2.7")).toBe("anthropic")
-			expect(getApiProtocol("opencode-go", "minimax-m2.5")).toBe("anthropic")
+			expect(getApiProtocol(providerIdentifiers.opencodeGo, "qwen3.7-max")).toBe(ANTHROPIC_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.opencodeGo, "qwen3.7-plus")).toBe(ANTHROPIC_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.opencodeGo, "qwen3.6-plus")).toBe(ANTHROPIC_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.opencodeGo, "minimax-m3")).toBe(ANTHROPIC_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.opencodeGo, "minimax-m2.7")).toBe(ANTHROPIC_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.opencodeGo, "minimax-m2.5")).toBe(ANTHROPIC_API_PROTOCOL)
 		})
 
 		it("should return 'openai' for opencode-go OpenAI-format models (GLM/DeepSeek/etc.)", () => {
-			expect(getApiProtocol("opencode-go", "glm-5.2")).toBe("openai")
-			expect(getApiProtocol("opencode-go", "deepseek-v4-pro")).toBe("openai")
-			expect(getApiProtocol("opencode-go", "kimi-k2.5")).toBe("openai")
-			expect(getApiProtocol("opencode-go", "mimo-v2.5")).toBe("openai")
+			expect(getApiProtocol(providerIdentifiers.opencodeGo, "glm-5.2")).toBe(OPENAI_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.opencodeGo, "deepseek-v4-pro")).toBe(OPENAI_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.opencodeGo, "kimi-k2.5")).toBe(OPENAI_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.opencodeGo, "mimo-v2.5")).toBe(OPENAI_API_PROTOCOL)
 		})
 
 		it("should return 'openai' for opencode-go without a model", () => {
-			expect(getApiProtocol("opencode-go")).toBe("openai")
+			expect(getApiProtocol(providerIdentifiers.opencodeGo)).toBe(OPENAI_API_PROTOCOL)
 		})
 
 		it("should return 'openai' for opencode-go with an unknown model id", () => {
-			expect(getApiProtocol("opencode-go", "some-future-model")).toBe("openai")
+			expect(getApiProtocol(providerIdentifiers.opencodeGo, "some-future-model")).toBe(OPENAI_API_PROTOCOL)
 		})
 	})
 
 	describe("Other providers", () => {
 		it("should return 'openai' for non-anthropic providers regardless of model", () => {
-			expect(getApiProtocol("openrouter", "claude-3-opus")).toBe("openai")
-			expect(getApiProtocol("openai", "claude-3-sonnet")).toBe("openai")
-			expect(getApiProtocol("litellm", "claude-instant")).toBe("openai")
-			expect(getApiProtocol("ollama", "claude-model")).toBe("openai")
+			expect(getApiProtocol(providerIdentifiers.openrouter, "claude-3-opus")).toBe(OPENAI_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.openai, "claude-3-sonnet")).toBe(OPENAI_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.litellm, "claude-instant")).toBe(OPENAI_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.ollama, "claude-model")).toBe(OPENAI_API_PROTOCOL)
 		})
 	})
 
 	describe("Edge cases", () => {
 		it("should return 'openai' when provider is undefined", () => {
-			expect(getApiProtocol(undefined)).toBe("openai")
-			expect(getApiProtocol(undefined, "claude-3-opus")).toBe("openai")
+			expect(getApiProtocol(undefined)).toBe(OPENAI_API_PROTOCOL)
+			expect(getApiProtocol(undefined, "claude-3-opus")).toBe(OPENAI_API_PROTOCOL)
 		})
 
 		it("should handle empty strings", () => {
-			expect(getApiProtocol("vertex", "")).toBe("openai")
+			expect(getApiProtocol(providerIdentifiers.vertex, "")).toBe(OPENAI_API_PROTOCOL)
 		})
 
 		it("should be case-insensitive for claude detection", () => {
-			expect(getApiProtocol("vertex", "CLAUDE-3-OPUS")).toBe("anthropic")
-			expect(getApiProtocol("vertex", "claude-3-opus")).toBe("anthropic")
-			expect(getApiProtocol("vertex", "ClAuDe-InStAnT")).toBe("anthropic")
+			expect(getApiProtocol(providerIdentifiers.vertex, "CLAUDE-3-OPUS")).toBe(ANTHROPIC_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.vertex, "claude-3-opus")).toBe(ANTHROPIC_API_PROTOCOL)
+			expect(getApiProtocol(providerIdentifiers.vertex, "ClAuDe-InStAnT")).toBe(ANTHROPIC_API_PROTOCOL)
 		})
 	})
 })

packages/types/src/provider-settings.ts

@@ -29,6 +29,10 @@ import {
 	minimaxModels,
 	mimoModels,
 	isOpencodeGoAnthropicFormatModel,
+	ANTHROPIC_API_PROTOCOL,
+	ANTHROPIC_MODEL_ID_PREFIX,
+	CLAUDE_MODEL_ID_FRAGMENT,
+	OPENAI_API_PROTOCOL,
 } from "./providers/index.js"
 
 /**
@@ -581,25 +585,39 @@ export const modelIdKeysByProvider: Record<TypicalProvider, ModelIdKey> = {
  */
 
 // Providers that use Anthropic-style API protocol.
-export const ANTHROPIC_STYLE_PROVIDERS: ProviderName[] = ["anthropic", "bedrock", "minimax"]
+export const ANTHROPIC_STYLE_PROVIDERS: ProviderName[] = [
+	providerIdentifiers.anthropic,
+	providerIdentifiers.bedrock,
+	providerIdentifiers.minimax,
+]
+
+const ANTHROPIC_MODEL_GATEWAY_PROVIDERS: ProviderName[] = [
+	providerIdentifiers.vercelAiGateway,
+	providerIdentifiers.zooGateway,
+]
 
 export const getApiProtocol = (provider: ProviderName | undefined, modelId?: string): "anthropic" | "openai" => {
 	if (provider && ANTHROPIC_STYLE_PROVIDERS.includes(provider)) {
-		return "anthropic"
+		return ANTHROPIC_API_PROTOCOL
 	}
 
-	if (provider && provider === "vertex" && modelId && modelId.toLowerCase().includes("claude")) {
-		return "anthropic"
+	if (
+		provider &&
+		provider === providerIdentifiers.vertex &&
+		modelId &&
+		modelId.toLowerCase().includes(CLAUDE_MODEL_ID_FRAGMENT)
+	) {
+		return ANTHROPIC_API_PROTOCOL
 	}
 
 	// Vercel AI Gateway and Zoo Gateway use the anthropic protocol for anthropic models.
 	if (
 		provider &&
-		["vercel-ai-gateway", "zoo-gateway"].includes(provider) &&
+		ANTHROPIC_MODEL_GATEWAY_PROVIDERS.includes(provider) &&
 		modelId &&
-		modelId.toLowerCase().startsWith("anthropic/")
+		modelId.toLowerCase().startsWith(ANTHROPIC_MODEL_ID_PREFIX)
 	) {
-		return "anthropic"
+		return ANTHROPIC_API_PROTOCOL
 	}
 
 	// Opencode Go routes a subset of its models (Qwen, MiniMax) through the
@@ -609,11 +627,16 @@ export const getApiProtocol = (provider: ProviderName | undefined, modelId?: str
 	// models must use the anthropic protocol so token/cost aggregation adds the
 	// cache tokens back into the input total — otherwise the cached prefix is
 	// dropped from `contextTokens`, undercounting context-window usage.
-	if (provider && provider === "opencode-go" && modelId && isOpencodeGoAnthropicFormatModel(modelId)) {
-		return "anthropic"
+	if (
+		provider &&
+		provider === providerIdentifiers.opencodeGo &&
+		modelId &&
+		isOpencodeGoAnthropicFormatModel(modelId)
+	) {
+		return ANTHROPIC_API_PROTOCOL
 	}
 
-	return "openai"
+	return OPENAI_API_PROTOCOL
 }
 
 /**

packages/types/src/providers/anthropic.ts

@@ -5,6 +5,9 @@ import type { ModelInfo } from "../model.js"
 
 export type AnthropicModelId = keyof typeof anthropicModels
 export const anthropicDefaultModelId: AnthropicModelId = "claude-sonnet-4-5"
+export const ANTHROPIC_API_PROTOCOL = "anthropic"
+export const ANTHROPIC_MODEL_ID_PREFIX = "anthropic/"
+export const CLAUDE_MODEL_ID_FRAGMENT = "claude"
 
 export const anthropicModels = {
 	"claude-sonnet-4-6": {

packages/types/src/providers/openai.ts

@@ -3,6 +3,7 @@ import type { ModelInfo } from "../model.js"
 // https://openai.com/api/pricing/
 export type OpenAiNativeModelId = keyof typeof openAiNativeModels
 
+export const OPENAI_API_PROTOCOL = "openai"
 export const openAiNativeDefaultModelId: OpenAiNativeModelId = "gpt-5.6-sol"
 
 export const openAiNativeModels = {

src/shared/__tests__/checkExistApiConfig.spec.ts

@@ -1,6 +1,6 @@
 // npx vitest run src/shared/__tests__/checkExistApiConfig.spec.ts
 
-import type { ProviderSettings } from "@roo-code/types"
+import { providerIdentifiers, type ProviderSettings } from "@roo-code/types"
 
 import { checkExistKey } from "../checkExistApiConfig"
 
@@ -66,16 +66,20 @@ describe("checkExistKey", () => {
 		expect(checkExistKey(config)).toBe(true)
 	})
 
+	it("recognizes keyless providers through their canonical identifiers", () => {
+		expect(checkExistKey({ apiProvider: providerIdentifiers.fakeAi })).toBe(true)
+	})
+
 	it("should return true for openai-codex provider without API key", () => {
 		const config: ProviderSettings = {
-			apiProvider: "openai-codex",
+			apiProvider: providerIdentifiers.openaiCodex,
 		}
 		expect(checkExistKey(config)).toBe(true)
 	})
 
 	it("should return true for qwen-code provider without API key", () => {
 		const config: ProviderSettings = {
-			apiProvider: "qwen-code",
+			apiProvider: providerIdentifiers.qwenCode,
 		}
 		expect(checkExistKey(config)).toBe(true)
 	})
@@ -95,6 +99,10 @@ describe("checkExistKey", () => {
 		expect(checkExistKey(config)).toBe(true)
 	})
 
+	it("recognizes OAuth authentication through the canonical Kimi Code identifier", () => {
+		expect(checkExistKey({ apiProvider: providerIdentifiers.kimiCode, kimiCodeAuthMethod: "oauth" })).toBe(true)
+	})
+
 	it("should return true for kimi-code provider without auth method (defaults to OAuth)", () => {
 		const config: ProviderSettings = {
 			apiProvider: "kimi-code",
@@ -128,6 +136,10 @@ describe("checkExistKey", () => {
 		expect(checkExistKey(config, false)).toBe(false)
 	})
 
+	it("recognizes session authentication through the canonical Zoo Gateway identifier", () => {
+		expect(checkExistKey({ apiProvider: providerIdentifiers.zooGateway }, true)).toBe(true)
+	})
+
 	it("should return true for zoo-gateway when profile has zooSessionToken", () => {
 		const config: ProviderSettings = {
 			apiProvider: "zoo-gateway",

src/shared/checkExistApiConfig.ts

@@ -1,4 +1,4 @@
-import { SECRET_STATE_KEYS, GLOBAL_SECRET_KEYS, ProviderSettings } from "@roo-code/types"
+import { SECRET_STATE_KEYS, GLOBAL_SECRET_KEYS, providerIdentifiers, ProviderSettings } from "@roo-code/types"
 
 /**
  * Returns whether a provider profile is sufficiently configured to leave the
@@ -14,17 +14,22 @@ export function checkExistKey(config: ProviderSettings | undefined, zooCodeIsAut
 	}
 
 	// Special case for fake-ai, openai-codex, and qwen-code providers which don't need any configuration.
-	if (config.apiProvider && ["fake-ai", "openai-codex", "qwen-code"].includes(config.apiProvider)) {
+	const configurationFreeProviders: ProviderSettings["apiProvider"][] = [
+		providerIdentifiers.fakeAi,
+		providerIdentifiers.openaiCodex,
+		providerIdentifiers.qwenCode,
+	]
+	if (config.apiProvider && configurationFreeProviders.includes(config.apiProvider)) {
 		return true
 	}
 
-	if (config.apiProvider === "kimi-code" && (config.kimiCodeAuthMethod ?? "oauth") === "oauth") {
+	if (config.apiProvider === providerIdentifiers.kimiCode && (config.kimiCodeAuthMethod ?? "oauth") === "oauth") {
 		return true
 	}
 
 	// Zoo Gateway uses session auth (profile token and/or global Zoo Code login),
 	// not a traditional API key listed in SECRET_STATE_KEYS.
-	if (config.apiProvider === "zoo-gateway") {
+	if (config.apiProvider === providerIdentifiers.zooGateway) {
 		return Boolean(config.zooSessionToken) || Boolean(zooCodeIsAuthenticated)
 	}