Release v0.13.1

package-lock.json

@@ -6459,7 +6459,7 @@
 		},
 		"packages/agent": {
 			"name": "@mariozechner/pi-agent-core",
-			"version": "0.13.0",
+			"version": "0.13.1",
 			"license": "MIT",
 			"dependencies": {
 				"@mariozechner/pi-ai": "^0.13.0",
@@ -6493,7 +6493,7 @@
 		},
 		"packages/ai": {
 			"name": "@mariozechner/pi-ai",
-			"version": "0.13.0",
+			"version": "0.13.1",
 			"license": "MIT",
 			"dependencies": {
 				"@anthropic-ai/sdk": "^0.61.0",
@@ -6534,7 +6534,7 @@
 		},
 		"packages/coding-agent": {
 			"name": "@mariozechner/pi-coding-agent",
-			"version": "0.13.0",
+			"version": "0.13.1",
 			"license": "MIT",
 			"dependencies": {
 				"@mariozechner/pi-agent-core": "^0.13.0",
@@ -6576,7 +6576,7 @@
 		},
 		"packages/mom": {
 			"name": "@mariozechner/pi-mom",
-			"version": "0.13.0",
+			"version": "0.13.1",
 			"license": "MIT",
 			"dependencies": {
 				"@anthropic-ai/sandbox-runtime": "^0.0.16",
@@ -6619,7 +6619,7 @@
 		},
 		"packages/pods": {
 			"name": "@mariozechner/pi",
-			"version": "0.13.0",
+			"version": "0.13.1",
 			"license": "MIT",
 			"dependencies": {
 				"@mariozechner/pi-agent-core": "^0.13.0",
@@ -6635,7 +6635,7 @@
 		},
 		"packages/proxy": {
 			"name": "@mariozechner/pi-proxy",
-			"version": "0.13.0",
+			"version": "0.13.1",
 			"dependencies": {
 				"@hono/node-server": "^1.14.0",
 				"hono": "^4.6.16"
@@ -6651,7 +6651,7 @@
 		},
 		"packages/tui": {
 			"name": "@mariozechner/pi-tui",
-			"version": "0.13.0",
+			"version": "0.13.1",
 			"license": "MIT",
 			"dependencies": {
 				"@types/mime-types": "^2.1.4",
@@ -6695,7 +6695,7 @@
 		},
 		"packages/web-ui": {
 			"name": "@mariozechner/pi-web-ui",
-			"version": "0.13.0",
+			"version": "0.13.1",
 			"license": "MIT",
 			"dependencies": {
 				"@lmstudio/sdk": "^1.5.0",
@@ -6721,7 +6721,7 @@
 		},
 		"packages/web-ui/example": {
 			"name": "pi-web-ui-example",
-			"version": "1.1.0",
+			"version": "1.1.1",
 			"dependencies": {
 				"@mariozechner/mini-lit": "^0.2.0",
 				"@mariozechner/pi-ai": "file:../../ai",

packages/agent/package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@mariozechner/pi-agent-core",
-	"version": "0.13.0",
+	"version": "0.13.1",
 	"description": "General-purpose agent with transport abstraction, state management, and attachment support",
 	"type": "module",
 	"main": "./dist/index.js",
@@ -18,8 +18,8 @@
 		"prepublishOnly": "npm run clean && npm run build"
 	},
 	"dependencies": {
-		"@mariozechner/pi-ai": "^0.13.0",
+		"@mariozechner/pi-ai": "^0.13.1",
-		"@mariozechner/pi-tui": "^0.13.0"
+		"@mariozechner/pi-tui": "^0.13.1"
 	},
 	"keywords": [
 		"ai",

packages/ai/package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@mariozechner/pi-ai",
-	"version": "0.13.0",
+	"version": "0.13.1",
 	"description": "Unified LLM API with automatic model discovery and provider configuration",
 	"type": "module",
 	"main": "./dist/index.js",

packages/coding-agent/CHANGELOG.md

@@ -2,6 +2,12 @@
 
 ## [Unreleased]
 
+## [0.13.1] - 2025-12-06
+
+### Added
+
+- **Flexible Windows shell configuration**: The bash tool now supports multiple shell sources beyond Git Bash. Resolution order: (1) custom `shellPath` in settings.json, (2) Git Bash in standard locations, (3) any bash.exe on PATH. This enables Cygwin, MSYS2, and other bash environments. Configure with `~/.pi/agent/settings.json`: `{"shellPath": "C:\\cygwin64\\bin\\bash.exe"}`.
+
 ### Fixed
 
 - **Windows binary detection**: Fixed Bun compiled binary detection on Windows by checking for URL-encoded `%7EBUN` in addition to `$bunfs` and `~BUN` in `import.meta.url`. This ensures the binary correctly locates supporting files (package.json, themes, etc.) next to the executable.

packages/coding-agent/README.md

@@ -2,11 +2,12 @@
 
 A radically simple and opinionated coding agent with multi-model support (including mid-session switching), a simple yet powerful CLI for headless coding tasks, and many creature comforts you might be used to from other coding agents.
 
-Works on Linux, macOS, and Windows (barely tested, needs Git Bash running in the "modern" Windows Terminal).
+Works on Linux, macOS, and Windows (needs a bash shell, see [Windows Shell Configuration](#windows-shell-configuration)).
 
 ## Table of Contents
 
 - [Installation](#installation)
+- [Windows Shell Configuration](#windows-shell-configuration)
 - [Quick Start](#quick-start)
 - [API Keys](#api-keys)
 - [OAuth Authentication (Optional)](#oauth-authentication-optional)
@@ -81,6 +82,29 @@ npm run build:binary
 ./dist/pi
 ```
 
+## Windows Shell Configuration
+
+On Windows, pi requires a bash shell. The following locations are checked in order:
+
+1. **Custom shell path** from `~/.pi/agent/settings.json` (if configured)
+2. **Git Bash** in standard locations (`C:\Program Files\Git\bin\bash.exe`)
+3. **bash.exe on PATH** (Cygwin, MSYS2, WSL, etc.)
+
+For most users, installing [Git for Windows](https://git-scm.com/download/win) is sufficient.
+
+### Custom Shell Path
+
+If you use Cygwin, MSYS2, or have bash in a non-standard location, add the path to your settings:
+
+```json
+// ~/.pi/agent/settings.json
+{
+  "shellPath": "C:\\cygwin64\\bin\\bash.exe"
+}
+```
+
+Alternatively, ensure your bash is on the system PATH.
+
 ## Quick Start
 
 ```bash

packages/coding-agent/package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@mariozechner/pi-coding-agent",
-	"version": "0.13.0",
+	"version": "0.13.1",
 	"description": "Coding agent CLI with read, bash, edit, write tools and session management",
 	"type": "module",
 	"piConfig": {
@@ -28,9 +28,9 @@
 		"prepublishOnly": "npm run clean && npm run build"
 	},
 	"dependencies": {
-		"@mariozechner/pi-agent-core": "^0.13.0",
+		"@mariozechner/pi-agent-core": "^0.13.1",
-		"@mariozechner/pi-ai": "^0.13.0",
+		"@mariozechner/pi-ai": "^0.13.1",
-		"@mariozechner/pi-tui": "^0.13.0",
+		"@mariozechner/pi-tui": "^0.13.1",
 		"chalk": "^5.5.0",
 		"diff": "^8.0.2",
 		"glob": "^11.0.3"

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

@@ -17,6 +17,7 @@ export interface Settings {
 	theme?: string;
 	compaction?: CompactionSettings;
 	hideThinkingBlock?: boolean;
+	shellPath?: string; // Custom shell path (e.g., for Cygwin users on Windows)
 }
 
 export class SettingsManager {
@@ -153,4 +154,13 @@ export class SettingsManager {
 		this.settings.hideThinkingBlock = hide;
 		this.save();
 	}
+
+	getShellPath(): string | undefined {
+		return this.settings.shellPath;
+	}
+
+	setShellPath(path: string | undefined): void {
+		this.settings.shellPath = path;
+		this.save();
+	}
 }

packages/coding-agent/src/tools/bash.ts

@@ -1,13 +1,57 @@
 import type { AgentTool } from "@mariozechner/pi-ai";
 import { Type } from "@sinclair/typebox";
-import { spawn } from "child_process";
+import { spawn, spawnSync } from "child_process";
 import { existsSync } from "fs";
+import { SettingsManager } from "../settings-manager.js";
+
+let cachedShellConfig: { shell: string; args: string[] } | null = null;
 
 /**
- * Get shell configuration based on platform
+ * Find bash executable on PATH (Windows)
+ */
+function findBashOnPath(): string | null {
+	try {
+		const result = spawnSync("where", ["bash.exe"], { encoding: "utf-8", timeout: 5000 });
+		if (result.status === 0 && result.stdout) {
+			const firstMatch = result.stdout.trim().split(/\r?\n/)[0];
+			if (firstMatch && existsSync(firstMatch)) {
+				return firstMatch;
+			}
+		}
+	} catch {
+		// Ignore errors
+	}
+	return null;
+}
+
+/**
+ * Get shell configuration based on platform.
+ * Resolution order:
+ * 1. User-specified shellPath in settings.json
+ * 2. On Windows: Git Bash in known locations
+ * 3. Fallback: bash on PATH (Windows) or sh (Unix)
  */
 function getShellConfig(): { shell: string; args: string[] } {
+	if (cachedShellConfig) {
+		return cachedShellConfig;
+	}
+
+	const settings = new SettingsManager();
+	const customShellPath = settings.getShellPath();
+
+	// 1. Check user-specified shell path
+	if (customShellPath) {
+		if (existsSync(customShellPath)) {
+			cachedShellConfig = { shell: customShellPath, args: ["-c"] };
+			return cachedShellConfig;
+		}
+		throw new Error(
+			`Custom shell path not found: ${customShellPath}\n` + `Please update shellPath in ~/.pi/agent/settings.json`,
+		);
+	}
+
 	if (process.platform === "win32") {
+		// 2. Try Git Bash in known locations
 		const paths: string[] = [];
 		const programFiles = process.env.ProgramFiles;
 		if (programFiles) {
@@ -20,16 +64,29 @@ function getShellConfig(): { shell: string; args: string[] } {
 
 		for (const path of paths) {
 			if (existsSync(path)) {
-				return { shell: path, args: ["-c"] };
+				cachedShellConfig = { shell: path, args: ["-c"] };
+				return cachedShellConfig;
 			}
 		}
 
+		// 3. Fallback: search bash.exe on PATH (Cygwin, MSYS2, WSL, etc.)
+		const bashOnPath = findBashOnPath();
+		if (bashOnPath) {
+			cachedShellConfig = { shell: bashOnPath, args: ["-c"] };
+			return cachedShellConfig;
+		}
+
 		throw new Error(
-			`Git Bash not found. Please install Git for Windows from https://git-scm.com/download/win\n` +
+			`No bash shell found. Options:\n` +
-				`Searched in:\n${paths.map((p) => `  ${p}`).join("\n")}`,
+				`  1. Install Git for Windows: https://git-scm.com/download/win\n` +
+				`  2. Add your bash to PATH (Cygwin, MSYS2, etc.)\n` +
+				`  3. Set shellPath in ~/.pi/agent/settings.json\n\n` +
+				`Searched Git Bash in:\n${paths.map((p) => `  ${p}`).join("\n")}`,
 		);
 	}
-	return { shell: "sh", args: ["-c"] };
+
+	cachedShellConfig = { shell: "sh", args: ["-c"] };
+	return cachedShellConfig;
 }
 
 /**

packages/mom/package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@mariozechner/pi-mom",
-	"version": "0.13.0",
+	"version": "0.13.1",
 	"description": "Slack bot that delegates messages to the pi coding agent",
 	"type": "module",
 	"bin": {
@@ -21,8 +21,8 @@
 	},
 	"dependencies": {
 		"@anthropic-ai/sandbox-runtime": "^0.0.16",
-		"@mariozechner/pi-agent-core": "^0.13.0",
+		"@mariozechner/pi-agent-core": "^0.13.1",
-		"@mariozechner/pi-ai": "^0.13.0",
+		"@mariozechner/pi-ai": "^0.13.1",
 		"@sinclair/typebox": "^0.34.0",
 		"@slack/socket-mode": "^2.0.0",
 		"@slack/web-api": "^7.0.0",

packages/pods/package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@mariozechner/pi",
-	"version": "0.13.0",
+	"version": "0.13.1",
 	"description": "CLI tool for managing vLLM deployments on GPU pods",
 	"type": "module",
 	"bin": {
@@ -34,7 +34,7 @@
 		"node": ">=20.0.0"
 	},
 	"dependencies": {
-		"@mariozechner/pi-agent-core": "^0.13.0",
+		"@mariozechner/pi-agent-core": "^0.13.1",
 		"chalk": "^5.5.0"
 	},
 	"devDependencies": {}

packages/proxy/package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@mariozechner/pi-proxy",
-	"version": "0.13.0",
+	"version": "0.13.1",
 	"type": "module",
 	"description": "CORS and authentication proxy for pi-ai",
 	"main": "dist/index.js",

packages/tui/package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@mariozechner/pi-tui",
-	"version": "0.13.0",
+	"version": "0.13.1",
 	"description": "Terminal User Interface library with differential rendering for efficient text-based applications",
 	"type": "module",
 	"main": "dist/index.js",

packages/web-ui/example/package.json

@@ -1,6 +1,6 @@
 {
   "name": "pi-web-ui-example",
-  "version": "1.1.0",
+  "version": "1.1.1",
   "private": true,
   "type": "module",
   "scripts": {

packages/web-ui/package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@mariozechner/pi-web-ui",
-	"version": "0.13.0",
+	"version": "0.13.1",
 	"description": "Reusable web UI components for AI chat interfaces powered by @mariozechner/pi-ai",
 	"type": "module",
 	"main": "dist/index.js",
@@ -18,8 +18,8 @@
 	},
 	"dependencies": {
 		"@lmstudio/sdk": "^1.5.0",
-		"@mariozechner/pi-ai": "^0.13.0",
+		"@mariozechner/pi-ai": "^0.13.1",
-		"@mariozechner/pi-tui": "^0.13.0",
+		"@mariozechner/pi-tui": "^0.13.1",
 		"docx-preview": "^0.3.7",
 		"jszip": "^3.10.1",
 		"lucide": "^0.544.0",