From f42deae13e103f933a33e26343f738ca7322307c Mon Sep 17 00:00:00 2001
From: Mario Zechner <badlogicgames@gmail.com>
Date: Thu, 22 Jan 2026 23:12:33 +0100
Subject: [PATCH] fix(tui): gate slash menu to empty input

---
 packages/tui/CHANGELOG.md             |  4 ++++
 packages/tui/src/components/editor.ts | 24 ++++++++++++++++++------
 2 files changed, 22 insertions(+), 6 deletions(-)

diff --git a/packages/tui/CHANGELOG.md b/packages/tui/CHANGELOG.md
index a45af6ed..ff17086d 100644
--- a/packages/tui/CHANGELOG.md
+++ b/packages/tui/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Fixed
+
+- Slash command menu now only triggers when the editor input is otherwise empty ([#904](https://github.com/badlogic/pi-mono/issues/904))
+
 ## [0.49.3] - 2026-01-22
 
 ### Added
diff --git a/packages/tui/src/components/editor.ts b/packages/tui/src/components/editor.ts
index ed173937..3471577f 100644
--- a/packages/tui/src/components/editor.ts
+++ b/packages/tui/src/components/editor.ts
@@ -984,7 +984,7 @@ export class Editor implements Component, Focusable {
 				const currentLine = this.state.lines[this.state.cursorLine] || "";
 				const textBeforeCursor = currentLine.slice(0, this.state.cursorCol);
 				// Check if we're in a slash command (with or without space for arguments)
-				if (textBeforeCursor.trimStart().startsWith("/")) {
+				if (this.isInSlashCommandContext(textBeforeCursor)) {
 					this.tryTriggerAutocomplete();
 				}
 				// Check if we're in an @ file reference context
@@ -1169,7 +1169,7 @@ export class Editor implements Component, Focusable {
 			const currentLine = this.state.lines[this.state.cursorLine] || "";
 			const textBeforeCursor = currentLine.slice(0, this.state.cursorCol);
 			// Slash command context
-			if (textBeforeCursor.trimStart().startsWith("/")) {
+			if (this.isInSlashCommandContext(textBeforeCursor)) {
 				this.tryTriggerAutocomplete();
 			}
 			// @ file reference context
@@ -1388,7 +1388,7 @@ export class Editor implements Component, Focusable {
 			const currentLine = this.state.lines[this.state.cursorLine] || "";
 			const textBeforeCursor = currentLine.slice(0, this.state.cursorCol);
 			// Slash command context
-			if (textBeforeCursor.trimStart().startsWith("/")) {
+			if (this.isInSlashCommandContext(textBeforeCursor)) {
 				this.tryTriggerAutocomplete();
 			}
 			// @ file reference context
@@ -1802,15 +1802,27 @@ export class Editor implements Component, Focusable {
 		}
 	}
 
+	// Slash menu only allowed when all other lines are empty (no mixed content)
+	private isSlashMenuAllowed(): boolean {
+		for (let i = 0; i < this.state.lines.length; i++) {
+			if (i === this.state.cursorLine) continue;
+			if (this.state.lines[i].trim() !== "") return false;
+		}
+		return true;
+	}
+
 	// Helper method to check if cursor is at start of message (for slash command detection)
 	private isAtStartOfMessage(): boolean {
+		if (!this.isSlashMenuAllowed()) return false;
 		const currentLine = this.state.lines[this.state.cursorLine] || "";
 		const beforeCursor = currentLine.slice(0, this.state.cursorCol);
-
-		// At start if line is empty, only contains whitespace, or is just "/"
 		return beforeCursor.trim() === "" || beforeCursor.trim() === "/";
 	}
 
+	private isInSlashCommandContext(textBeforeCursor: string): boolean {
+		return this.isSlashMenuAllowed() && textBeforeCursor.trimStart().startsWith("/");
+	}
+
 	// Autocomplete methods
 	private tryTriggerAutocomplete(explicitTab: boolean = false): void {
 		if (!this.autocompleteProvider) return;
@@ -1848,7 +1860,7 @@ export class Editor implements Component, Focusable {
 		const beforeCursor = currentLine.slice(0, this.state.cursorCol);
 
 		// Check if we're in a slash command context
-		if (beforeCursor.trimStart().startsWith("/") && !beforeCursor.trimStart().includes(" ")) {
+		if (this.isInSlashCommandContext(beforeCursor) && !beforeCursor.trimStart().includes(" ")) {
 			this.handleSlashCommandCompletion();
 		} else {
 			this.forceFileAutocomplete();