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fix(tmux): send Escape before Enter for vim mode compatibility

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NudgeSession and NudgePane now send Escape key before Enter to exit
vim INSERT mode if enabled. Harmless in normal mode.

Fixes #307

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
gastown/crew/jack
2026-01-10 23:27:37 -08:00
committed by Steve Yegge
parent 7f4c3201cf
commit 1ece29e1fd
1 changed files with 13 additions and 3 deletions
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16
internal/tmux/tmux.go
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@@ -281,7 +281,7 @@ func (t *Tmux) SendKeysDelayedDebounced(session, keys string, preDelayMs, deboun
// NudgeSession sends a message to a Claude Code session reliably.
// This is the canonical way to send messages to Claude sessions.
// Uses: literal mode + 500ms debounce + separate Enter.
// Uses: literal mode + 500ms debounce + ESC (for vim mode) + separate Enter.
// Verification is the Witness's job (AI), not this function.
func (t *Tmux) NudgeSession(session, message string) error {
// 1. Send text in literal mode (handles special characters)
@@ -292,7 +292,12 @@ func (t *Tmux) NudgeSession(session, message string) error {
// 2. Wait 500ms for paste to complete (tested, required)
time.Sleep(500 * time.Millisecond)
// 3. Send Enter with retry (critical for message submission)
// 3. Send Escape to exit vim INSERT mode if enabled (harmless in normal mode)
// See: https://github.com/anthropics/gastown/issues/307
_, _ = t.run("send-keys", "-t", session, "Escape")
time.Sleep(100 * time.Millisecond)
// 4. Send Enter with retry (critical for message submission)
var lastErr error
for attempt := 0; attempt < 3; attempt++ {
if attempt > 0 {
@@ -318,7 +323,12 @@ func (t *Tmux) NudgePane(pane, message string) error {
// 2. Wait 500ms for paste to complete (tested, required)
time.Sleep(500 * time.Millisecond)
// 3. Send Enter with retry (critical for message submission)
// 3. Send Escape to exit vim INSERT mode if enabled (harmless in normal mode)
// See: https://github.com/anthropics/gastown/issues/307
_, _ = t.run("send-keys", "-t", pane, "Escape")
time.Sleep(100 * time.Millisecond)
// 4. Send Enter with retry (critical for message submission)
var lastErr error
for attempt := 0; attempt < 3; attempt++ {
if attempt > 0 {