fix: handle Windows paths in session directory generation

- Replace backslashes in addition to forward slashes
- Remove colons from Windows drive letters (C:, D:, etc)
- Fixes ENOENT error on Windows when creating session directories

packages/ai/src/models.generated.ts

@@ -4728,23 +4728,6 @@ export const MODELS = {
 			contextWindow: 200000,
 			maxTokens: 8192,
 		} satisfies Model<"openai-completions">,
-		"mistralai/ministral-8b": {
-			id: "mistralai/ministral-8b",
-			name: "Mistral: Ministral 8B",
-			api: "openai-completions",
-			provider: "openrouter",
-			baseUrl: "https://openrouter.ai/api/v1",
-			reasoning: false,
-			input: ["text"],
-			cost: {
-				input: 0.09999999999999999,
-				output: 0.09999999999999999,
-				cacheRead: 0,
-				cacheWrite: 0,
-			},
-			contextWindow: 131072,
-			maxTokens: 4096,
-		} satisfies Model<"openai-completions">,
 		"mistralai/ministral-3b": {
 			id: "mistralai/ministral-3b",
 			name: "Mistral: Ministral 3B",
@@ -4762,6 +4745,23 @@ export const MODELS = {
 			contextWindow: 131072,
 			maxTokens: 4096,
 		} satisfies Model<"openai-completions">,
+		"mistralai/ministral-8b": {
+			id: "mistralai/ministral-8b",
+			name: "Mistral: Ministral 8B",
+			api: "openai-completions",
+			provider: "openrouter",
+			baseUrl: "https://openrouter.ai/api/v1",
+			reasoning: false,
+			input: ["text"],
+			cost: {
+				input: 0.09999999999999999,
+				output: 0.09999999999999999,
+				cacheRead: 0,
+				cacheWrite: 0,
+			},
+			contextWindow: 131072,
+			maxTokens: 4096,
+		} satisfies Model<"openai-completions">,
 		"qwen/qwen-2.5-7b-instruct": {
 			id: "qwen/qwen-2.5-7b-instruct",
 			name: "Qwen: Qwen2.5 7B Instruct",
@@ -4966,23 +4966,6 @@ export const MODELS = {
 			contextWindow: 128000,
 			maxTokens: 16384,
 		} satisfies Model<"openai-completions">,
-		"meta-llama/llama-3.1-8b-instruct": {
-			id: "meta-llama/llama-3.1-8b-instruct",
-			name: "Meta: Llama 3.1 8B Instruct",
-			api: "openai-completions",
-			provider: "openrouter",
-			baseUrl: "https://openrouter.ai/api/v1",
-			reasoning: false,
-			input: ["text"],
-			cost: {
-				input: 0.02,
-				output: 0.03,
-				cacheRead: 0,
-				cacheWrite: 0,
-			},
-			contextWindow: 131072,
-			maxTokens: 16384,
-		} satisfies Model<"openai-completions">,
 		"meta-llama/llama-3.1-405b-instruct": {
 			id: "meta-llama/llama-3.1-405b-instruct",
 			name: "Meta: Llama 3.1 405B Instruct",
@@ -5017,6 +5000,23 @@ export const MODELS = {
 			contextWindow: 131072,
 			maxTokens: 4096,
 		} satisfies Model<"openai-completions">,
+		"meta-llama/llama-3.1-8b-instruct": {
+			id: "meta-llama/llama-3.1-8b-instruct",
+			name: "Meta: Llama 3.1 8B Instruct",
+			api: "openai-completions",
+			provider: "openrouter",
+			baseUrl: "https://openrouter.ai/api/v1",
+			reasoning: false,
+			input: ["text"],
+			cost: {
+				input: 0.02,
+				output: 0.03,
+				cacheRead: 0,
+				cacheWrite: 0,
+			},
+			contextWindow: 131072,
+			maxTokens: 16384,
+		} satisfies Model<"openai-completions">,
 		"mistralai/mistral-nemo": {
 			id: "mistralai/mistral-nemo",
 			name: "Mistral: Mistral Nemo",
@@ -5034,9 +5034,9 @@ export const MODELS = {
 			contextWindow: 131072,
 			maxTokens: 16384,
 		} satisfies Model<"openai-completions">,
-		"openai/gpt-4o-mini-2024-07-18": {
+		"openai/gpt-4o-mini": {
-			id: "openai/gpt-4o-mini-2024-07-18",
+			id: "openai/gpt-4o-mini",
-			name: "OpenAI: GPT-4o-mini (2024-07-18)",
+			name: "OpenAI: GPT-4o-mini",
 			api: "openai-completions",
 			provider: "openrouter",
 			baseUrl: "https://openrouter.ai/api/v1",
@@ -5051,9 +5051,9 @@ export const MODELS = {
 			contextWindow: 128000,
 			maxTokens: 16384,
 		} satisfies Model<"openai-completions">,
-		"openai/gpt-4o-mini": {
+		"openai/gpt-4o-mini-2024-07-18": {
-			id: "openai/gpt-4o-mini",
+			id: "openai/gpt-4o-mini-2024-07-18",
-			name: "OpenAI: GPT-4o-mini",
+			name: "OpenAI: GPT-4o-mini (2024-07-18)",
 			api: "openai-completions",
 			provider: "openrouter",
 			baseUrl: "https://openrouter.ai/api/v1",
@@ -5476,23 +5476,6 @@ export const MODELS = {
 			contextWindow: 16385,
 			maxTokens: 4096,
 		} satisfies Model<"openai-completions">,
-		"openai/gpt-4-0314": {
-			id: "openai/gpt-4-0314",
-			name: "OpenAI: GPT-4 (older v0314)",
-			api: "openai-completions",
-			provider: "openrouter",
-			baseUrl: "https://openrouter.ai/api/v1",
-			reasoning: false,
-			input: ["text"],
-			cost: {
-				input: 30,
-				output: 60,
-				cacheRead: 0,
-				cacheWrite: 0,
-			},
-			contextWindow: 8191,
-			maxTokens: 4096,
-		} satisfies Model<"openai-completions">,
 		"openai/gpt-4": {
 			id: "openai/gpt-4",
 			name: "OpenAI: GPT-4",
@@ -5527,5 +5510,22 @@ export const MODELS = {
 			contextWindow: 16385,
 			maxTokens: 4096,
 		} satisfies Model<"openai-completions">,
+		"openai/gpt-4-0314": {
+			id: "openai/gpt-4-0314",
+			name: "OpenAI: GPT-4 (older v0314)",
+			api: "openai-completions",
+			provider: "openrouter",
+			baseUrl: "https://openrouter.ai/api/v1",
+			reasoning: false,
+			input: ["text"],
+			cost: {
+				input: 30,
+				output: 60,
+				cacheRead: 0,
+				cacheWrite: 0,
+			},
+			contextWindow: 8191,
+			maxTokens: 4096,
+		} satisfies Model<"openai-completions">,
 	},
 } as const;

packages/coding-agent/src/session-manager.ts

@@ -78,7 +78,8 @@ export class SessionManager {
 
 	private getSessionDirectory(): string {
 		const cwd = process.cwd();
-		const safePath = "--" + cwd.replace(/^\//, "").replace(/\//g, "-") + "--";
+		// Replace all path separators and colons (for Windows drive letters) with dashes
+		const safePath = "--" + cwd.replace(/^[/\\]/, "").replace(/[/\\:]/g, "-") + "--";
 
 		const configDir = resolve(process.env.CODING_AGENT_DIR || join(homedir(), ".pi/agent/"));
 		const sessionDir = join(configDir, "sessions", safePath);