Fix agent send --enter not submitting#171
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Some coding agents drop an Enter keystroke that arrives in the same event-loop tick as a burst of text input. Add a 50ms delay between delivering text and pressing Enter in SendKeys. Affected agents (Enter dropped with 0ms delay): - Codex: intermittent — fails under rapid/burst sends - Cline: consistent — 5/5 Enter keystrokes dropped Unaffected agents: - Claude, Gemini, Amp, OpenCode: all handle 0ms fine See tmux/tmux#1778 for prior art: tmux maintainer confirmed the application can eat keystrokes that arrive before it is ready, and the fix is a timing delay. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Codex (Ink/React TUI) drops an Enter keystroke that arrives in the same event-loop tick as a burst of text input. Add a 50ms delay between delivering text and pressing Enter in SendKeys.
Verified against live Codex sessions:
See tmux/tmux#1778 for prior art: tmux maintainer confirmed the application can eat keystrokes that arrive before it is ready, and the fix is a timing delay.
Summary
Describe the change and intended behavior.
Quality Checklist
make devchecklocally.make lint-strict-newlocally for changed code.make harness-presets.go test ./internal/tmux ./internal/e2e.