feat: add tui.copy_on_select setting to allow disabling copy-on-select behaviour (resolves #4751, resolves #2845)

packages/opencode/src/cli/cmd/tui/app.tsx

@@ -476,15 +476,18 @@ function App() {
         }
         const text = renderer.getSelection()?.getSelectedText()
         if (text && text.length > 0) {
-          const base64 = Buffer.from(text).toString("base64")
-          const osc52 = `\x1b]52;c;${base64}\x07`
-          const finalOsc52 = process.env["TMUX"] ? `\x1bPtmux;\x1b${osc52}\x1b\\` : osc52
-          /* @ts-expect-error */
-          renderer.writeOut(finalOsc52)
-          await Clipboard.copy(text)
-            .then(() => toast.show({ message: "Copied to clipboard", variant: "info" }))
-            .catch(toast.error)
-          renderer.clearSelection()
+          const copyOnSelect = sync.data.config.tui?.copy_on_select ?? true
+          if (copyOnSelect) {
+            const base64 = Buffer.from(text).toString("base64")
+            const osc52 = `\x1b]52;c;${base64}\x07`
+            const finalOsc52 = process.env["TMUX"] ? `\x1bPtmux;\x1b${osc52}\x1b\\` : osc52
+            /* @ts-expect-error */
+            renderer.writeOut(finalOsc52)
+            await Clipboard.copy(text)
+              .then(() => toast.show({ message: "Copied to clipboard", variant: "info" }))
+              .catch(toast.error)
+            renderer.clearSelection()
+          }
         }
       }}
     >

packages/opencode/src/config/config.ts

@@ -466,6 +466,11 @@ export namespace Config {
       })
       .optional()
       .describe("Scroll acceleration settings"),
+    copy_on_select: z
+      .boolean()
+      .optional()
+      .default(true)
+      .describe("Enable copying text to clipboard when selected with mouse"),
     diff_style: z
       .enum(["auto", "stacked"])
       .optional()

packages/sdk/go/config.go

@@ -1834,15 +1834,18 @@ func (r ConfigShare) IsKnown() bool {
 // TUI specific settings
 type ConfigTui struct {
 	// TUI scroll speed
-	ScrollSpeed float64       `json:"scroll_speed"`
-	JSON        configTuiJSON `json:"-"`
+	ScrollSpeed float64 `json:"scroll_speed"`
+	// Enable copying text to clipboard when selected with mouse
+	CopyOnSelect bool          `json:"copy_on_select"`
+	JSON         configTuiJSON `json:"-"`
 }
 
 // configTuiJSON contains the JSON metadata for the struct [ConfigTui]
 type configTuiJSON struct {
-	ScrollSpeed apijson.Field
-	raw         string
-	ExtraFields map[string]apijson.Field
+	ScrollSpeed  apijson.Field
+	CopyOnSelect apijson.Field
+	raw          string
+	ExtraFields  map[string]apijson.Field
 }
 
 func (r *ConfigTui) UnmarshalJSON(data []byte) (err error) {

packages/sdk/js/src/gen/types.gen.ts

@@ -1160,6 +1160,10 @@ export type Config = {
        */
       enabled: boolean
     }
+    /**
+     * Enable copying text to clipboard when selected with mouse
+     */
+    copy_on_select?: boolean
     /**
      * Control diff rendering style: 'auto' adapts to terminal width, 'stacked' always shows single column
      */