Missing readline ctrl+f (forward-char) / ctrl+b (backward-char) #4000

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1. jdanbrown

   added

   bugSomething isn't workingSomething isn't working

   on Nov 6, 2025
2. github-actions

   added

   opentuiThis relates to changes in v1.0, now that opencode uses opentuiThis relates to changes in v1.0, now that opencode uses opentui

   on Nov 6, 2025
3. github-actions commented on Nov 6, 2025

   

   github-actionsBot

   on Nov 6, 2025 – with GitHub Actions

   Contributor

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   This issue might be a duplicate of existing issues. Please check:

   • Ctrl-u not clearing input field #3647: Both issues are about missing or broken readline keybindings in OpenCode v1.0+ (opentui system). Issue Ctrl-u not clearing input field #3647 reports that most readline keybindings work except for ctrl-u and ctrl-d, while this issue reports missing ctrl+f and ctrl+b. These could potentially be addressed together as part of a comprehensive readline keybinding implementation.

   Feel free to ignore if none of these address your specific case.
4. jdanbrown commented on Nov 6, 2025

   

   jdanbrown

   on Nov 6, 2025

   ContributorAuthor

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   Adding ctrl+f and ctrl+b (and ctrl+u) looks pretty straightforward, but would it be better if they went into opentui rather than opencode? I was sketching this out quickly with an llm to see how much work it would be, but along the way I couldn't find other basic line-editing keys like ctrl+k, ctrl+a, and ctrl+e defined in opencode, so that made me wonder if maybe these things should live in opentui instead.

   • https://opencode.ai/s/6zF2Y8Cl

   $ git diff
   diff --git a/packages/opencode/src/cli/cmd/tui/component/prompt/index.tsx b/packages/opencode/src/cli/cmd/tui/component/prompt/index.tsx
   index c977f731..0a80657e 100644
   --- a/packages/opencode/src/cli/cmd/tui/component/prompt/index.tsx
   +++ b/packages/opencode/src/cli/cmd/tui/component/prompt/index.tsx
   @@ -566,6 +566,33 @@ export function Prompt(props: PromptProps) {
                      e.preventDefault()
                      return
                    }
   +                if (keybind.match("input_forward_char", e)) {
   +                  const cursorOffset = input.cursorOffset
   +                  if (cursorOffset < input.plainText.length) {
   +                    input.cursorOffset = cursorOffset + 1
   +                  }
   +                  e.preventDefault()
   +                  return
   +                }
   +                if (keybind.match("input_backward_char", e)) {
   +                  const cursorOffset = input.cursorOffset
   +                  if (cursorOffset > 0) {
   +                    input.cursorOffset = cursorOffset - 1
   +                  }
   +                  e.preventDefault()
   +                  return
   +                }
   +                if (keybind.match("input_kill_line_backward", e)) {
   +                  const cursorOffset = input.cursorOffset
   +                  if (cursorOffset > 0) {
   +                    const text = input.plainText
   +                    const newText = text.slice(cursorOffset)
   +                    input.setText(newText)
   +                    input.cursorOffset = 0
   +                  }
   +                  e.preventDefault()
   +                  return
   +                }
                    if (keybind.match("app_exit", e)) {
                      await exit()
                      return
   diff --git a/packages/opencode/src/config/config.ts b/packages/opencode/src/config/config.ts
   index c2ee63c6..3be2cfb4 100644
   --- a/packages/opencode/src/config/config.ts
   +++ b/packages/opencode/src/config/config.ts
   @@ -465,6 +465,11 @@ export namespace Config {
          agent_cycle_reverse: z.string().optional().default("shift+tab").describe("Previous agent"),
          input_clear: z.string().optional().default("ctrl+c").describe("Clear input field"),
          input_forward_delete: z.string().optional().default("ctrl+d").describe("Forward delete"),
   +      input_kill_line_backward: z
   +        .string()
   +        .optional()
   +        .default("ctrl+u")
   +        .describe("Delete from cursor to beginning of line"),
          input_paste: z.string().optional().default("ctrl+v").describe("Paste from clipboard"),
          input_submit: z.string().optional().default("return").describe("Submit input"),
          input_newline: z
   @@ -472,6 +477,16 @@ export namespace Config {
            .optional()
            .default("shift+return,ctrl+j")
            .describe("Insert newline in input"),
   +      input_forward_char: z
   +        .string()
   +        .optional()
   +        .default("ctrl+f,right")
   +        .describe("Move cursor forward one character"),
   +      input_backward_char: z
   +        .string()
   +        .optional()
   +        .default("ctrl+b,left")
   +        .describe("Move cursor backward one character"),
          history_previous: z.string().optional().default("up").describe("Previous history item"),
          history_next: z.string().optional().default("down").describe("Next history item"),
          session_child_cycle: z
   
   $ git diff --stat
    packages/opencode/src/cli/cmd/tui/component/prompt/index.tsx | 27 +++++++++++++++++++++++++++
    packages/opencode/src/config/config.ts                       | 15 +++++++++++++++
    2 files changed, 42 insertions(+)

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5. thdxr

   assigned

   kommander

   on Nov 7, 2025
6. kommander commented on Nov 13, 2025

   

   kommander

   on Nov 13, 2025 – with Linear

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   This should work in the latest version?
7. cwegener commented on Nov 13, 2025

   

   cwegener

   on Nov 13, 2025

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   Started working for me when I installed version 1.0.60 yesterday

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8. kommander

   closed this as completedon Nov 17, 2025
9. jdanbrown commented on Nov 18, 2025

   

   jdanbrown

   on Nov 18, 2025

   ContributorAuthor

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   Thanks! Confirmed working now as of 1.0.76 (or earlier).
10. sim590 commented on Oct 11, 2026

    

    sim590

    on Oct 11, 2026

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    This is now broken. They added a new binding for ctrl-b in V2 and now readline's standard ctrl-b doesn't work anymore.