added small repo warning + custom instructions

src/core/webview/webviewMessageHandler.ts

@@ -1904,6 +1904,8 @@ export const webviewMessageHandler = async (
 				const addToGitignore = message.addToGitignore || false
 				const alwaysAllowWriteProtected = message.alwaysAllowWriteProtected || false
 				const apiConfigName = message.apiConfigName
+				const includeCustomRules = message.includeCustomRules || false
+				const customRulesText = message.customRulesText || ""
 
 				// Save current API config to restore later
 				const currentApiConfig = getGlobalState("currentApiConfigName")
@@ -1920,6 +1922,8 @@ export const webviewMessageHandler = async (
 					selectedRuleTypes,
 					addToGitignore,
 					alwaysAllowWriteProtected,
+					includeCustomRules,
+					customRulesText,
 				)
 
 				// Spawn a new task in code mode to generate the rules
@@ -1954,7 +1958,7 @@ export const webviewMessageHandler = async (
 			}
 			break
 		case "checkExistingRuleFiles":
-			// Check which rule files already exist
+			// Check which rule files already exist and count source files
 			try {
 				const workspacePath = getWorkspacePath()
 				if (!workspacePath) {
@@ -1963,6 +1967,7 @@ export const webviewMessageHandler = async (
 
 				const { fileExistsAtPath } = await import("../../utils/fs")
 				const path = await import("path")
+				const fs = await import("fs/promises")
 
 				const ruleTypeToPath: Record<string, string> = {
 					general: path.join(workspacePath, ".roo", "rules", "coding-standards.md"),
@@ -1984,9 +1989,28 @@ export const webviewMessageHandler = async (
 					}
 				}
 
+				// Count all files in the workspace
+				let sourceFileCount = 0
+				try {
+					// Use VS Code API to count all files
+					const vscode = await import("vscode")
+
+					// Find all files (excluding common non-project files)
+					const pattern = "**/*"
+					const excludePattern =
+						"**/node_modules/**,**/.git/**,**/dist/**,**/build/**,**/.next/**,**/.nuxt/**,**/coverage/**,**/.cache/**"
+
+					const files = await vscode.workspace.findFiles(pattern, excludePattern)
+					sourceFileCount = files.length
+				} catch (error) {
+					// If counting fails, set to -1 to indicate unknown
+					sourceFileCount = -1
+				}
+
 				await provider.postMessageToWebview({
 					type: "existingRuleFiles",
 					files: existingFiles,
+					sourceFileCount,
 				})
 			} catch (error) {
 				// Silently fail - not critical

src/services/rules/rulesGenerator.ts

@@ -9,6 +9,8 @@ export async function createRulesGenerationTaskMessage(
 	selectedRuleTypes: string[],
 	addToGitignore: boolean,
 	alwaysAllowWriteProtected: boolean = false,
+	includeCustomRules: boolean = false,
+	customRulesText: string = "",
 ): Promise<string> {
 	// Only create directories if auto-approve is enabled
 	if (alwaysAllowWriteProtected) {
@@ -135,7 +137,7 @@ ${ruleInstructions
    - Project-specific conventions and best practices
    - File organization patterns
 
-5. **Keep rules concise** - aim for 20-30 lines per file, focusing on the most important guidelines
+5. **Keep rules concise** - aim for 20 lines per file, focusing on the most important guidelines
 
 6. **Open the generated files** in the editor for review after creation
 
@@ -149,6 +151,12 @@ ${
    - If .gitignore doesn't exist, create it
    - If the entries already exist in .gitignore, don't duplicate them`
 		: ""
+}
+
+${
+	includeCustomRules && customRulesText
+		? `\n**Additional rules from User to add to the rules file:**\n${customRulesText}`
+		: ""
 }`
 
 	return taskMessage

src/shared/ExtensionMessage.ts

@@ -110,6 +110,7 @@ export interface ExtensionMessage {
 	text?: string
 	payload?: any // Add a generic payload for now, can refine later
 	files?: string[] // For existingRuleFiles
+	sourceFileCount?: number // For existingRuleFiles to show warning for small repos
 	action?:
 		| "chatButtonClicked"
 		| "mcpButtonClicked"

src/shared/WebviewMessage.ts

@@ -241,6 +241,8 @@ export interface WebviewMessage {
 	addToGitignore?: boolean // For generateRules
 	alwaysAllowWriteProtected?: boolean // For generateRules
 	apiConfigName?: string // For generateRules
+	includeCustomRules?: boolean // For generateRules
+	customRulesText?: string // For generateRules
 	files?: string[] // For existingRuleFiles response
 	codeIndexSettings?: {
 		// Global state settings

webview-ui/src/components/settings/RulesSettings.tsx

@@ -6,6 +6,7 @@ import { vscode } from "@/utils/vscode"
 import { cn } from "@/lib/utils"
 import { useExtensionState } from "@/context/ExtensionStateContext"
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue, StandardTooltip } from "@/components/ui"
+import { VSCodeTextArea } from "@vscode/webview-ui-toolkit/react"
 
 import { SectionHeader } from "./SectionHeader"
 import { Section } from "./Section"
@@ -29,10 +30,13 @@ export const RulesSettings = ({ className, hasUnsavedChanges, ...props }: RulesS
 		type: "success" | "error" | null
 		message: string
 	}>({ type: null, message: "" })
-	const [addToGitignore, setAddToGitignore] = useState(false)
+	const [addToGitignore, setAddToGitignore] = useState(true)
 	const [_existingFiles, setExistingFiles] = useState<string[]>([])
-	const [alwaysAllowWriteProtected, setAlwaysAllowWriteProtected] = useState(false)
+	const [alwaysAllowWriteProtected, setAlwaysAllowWriteProtected] = useState(true)
 	const [selectedApiConfig, setSelectedApiConfig] = useState<string>("")
+	const [includeCustomRules, setIncludeCustomRules] = useState(false)
+	const [customRulesText, setCustomRulesText] = useState("")
+	const [sourceFileCount, setSourceFileCount] = useState<number | null>(null)
 
 	const { listApiConfigMeta, currentApiConfigName } = useExtensionState()
 
@@ -118,6 +122,10 @@ export const RulesSettings = ({ className, hasUnsavedChanges, ...props }: RulesS
 						exists: message.files?.includes(rule.id) || false,
 					})),
 				)
+				// Set source file count if provided
+				if (message.sourceFileCount !== undefined) {
+					setSourceFileCount(message.sourceFileCount)
+				}
 			} else if (message.type === "state") {
 				// Update alwaysAllowWriteProtected from the extension state
 				if (message.state?.alwaysAllowWriteProtected !== undefined) {
@@ -150,6 +158,8 @@ export const RulesSettings = ({ className, hasUnsavedChanges, ...props }: RulesS
 			addToGitignore,
 			alwaysAllowWriteProtected,
 			apiConfigName: selectedApiConfig,
+			includeCustomRules,
+			customRulesText: includeCustomRules ? customRulesText : "",
 		})
 	}
 
@@ -221,6 +231,15 @@ export const RulesSettings = ({ className, hasUnsavedChanges, ...props }: RulesS
 								</div>
 							</div>
 
+							{/* Small repository warning */}
+							{sourceFileCount !== null && sourceFileCount > 0 && sourceFileCount < 20 && (
+								<div className="flex items-start gap-2 p-3 bg-vscode-inputValidation-warningBackground border border-vscode-inputValidation-warningBorder rounded-md">
+									<AlertTriangle className="w-4 h-4 text-vscode-inputValidation-warningForeground mt-0.5 flex-shrink-0" />
+									<div className="text-sm text-vscode-inputValidation-warningForeground">
+										{t("settings:rules.smallRepoWarning", { count: sourceFileCount })}
+									</div>
+								</div>
+							)}
 							{hasExistingFiles && (
 								<div className="flex items-start gap-2 p-3 bg-vscode-inputValidation-warningBackground border border-vscode-inputValidation-warningBorder rounded-md">
 									<AlertTriangle className="w-4 h-4 text-vscode-inputValidation-warningForeground mt-0.5 flex-shrink-0" />
@@ -235,7 +254,7 @@ export const RulesSettings = ({ className, hasUnsavedChanges, ...props }: RulesS
 								</div>
 							)}
 
-							<div className="border-t border-vscode-panel-border pt-4">
+							<div className="border-t border-vscode-panel-border pt-2">
 								<label className="flex items-center gap-2 cursor-pointer hover:opacity-80">
 									<input
 										type="checkbox"
@@ -251,7 +270,7 @@ export const RulesSettings = ({ className, hasUnsavedChanges, ...props }: RulesS
 								</label>
 							</div>
 
-							<div className="border-t border-vscode-panel-border pt-4">
+							<div className="border-t border-vscode-panel-border pt-2">
 								<label className="flex items-center gap-2 cursor-pointer hover:opacity-80">
 									<input
 										type="checkbox"
@@ -275,6 +294,45 @@ export const RulesSettings = ({ className, hasUnsavedChanges, ...props }: RulesS
 								</label>
 							</div>
 
+							<div className="border-t border-vscode-panel-border pt-4">
+								<label className="flex items-center gap-2 cursor-pointer hover:opacity-80">
+									<input
+										type="checkbox"
+										checked={includeCustomRules}
+										onChange={(e) => setIncludeCustomRules(e.target.checked)}
+									/>
+									<div>
+										<div className="text-sm font-medium">
+											{t("settings:rules.includeCustomRules")}
+										</div>
+										<div className="text-xs text-vscode-descriptionForeground">
+											{t("settings:rules.includeCustomRulesDescription")}
+										</div>
+									</div>
+								</label>
+
+								{includeCustomRules && (
+									<div className="mt-3 pl-6">
+										<VSCodeTextArea
+											resize="vertical"
+											value={customRulesText}
+											onChange={(e) => {
+												const value =
+													(e as unknown as CustomEvent)?.detail?.target?.value ||
+													((e as any).target as HTMLTextAreaElement).value
+												setCustomRulesText(value)
+											}}
+											placeholder={t("settings:rules.customRulesPlaceholder")}
+											rows={6}
+											className="w-full"
+										/>
+										<div className="text-xs text-vscode-descriptionForeground mt-1">
+											{t("settings:rules.customRulesHint")}
+										</div>
+									</div>
+								)}
+							</div>
+
 							<div className="flex flex-col gap-3">
 								<Select value={selectedApiConfig} onValueChange={setSelectedApiConfig}>
 									<SelectTrigger className="w-fit min-w-[5rem] max-w-[8rem]">

webview-ui/src/i18n/locales/en/settings.json

@@ -656,7 +656,12 @@
 		"autoApproveProtected": "Auto-approve protected file writes",
 		"autoApproveProtectedDescription": "Allow Roo to make and write to .roo directory without requiring manual approval",
 		"autoApproveRecommendation": "For the best experience generating rules, we recommend enabling auto-approve for both read and write operations in the Auto-Approve settings above.",
-		"selectApiConfig": "Select API configuration"
+		"selectApiConfig": "Select API configuration",
+		"includeCustomRules": "Include my own rules",
+		"includeCustomRulesDescription": "Add custom instructions to the rule generation prompt",
+		"customRulesPlaceholder": "Enter your custom rules or instructions here...",
+		"customRulesHint": "These will be included in the prompt when generating rules for your project",
+		"smallRepoWarning": "This repository contains only {{count}} files. With limited code examples, the generated rules may be overly specific to your current implementation. Consider regenerating rules as your project grows."
 	},
 	"promptCaching": {
 		"label": "Disable prompt caching",