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fix(terminal): Ctrl+Enter가 일반 Enter로 전달되는 문제 수정 - #471
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xterm.js 5.5는 modifyOtherKeys(CSI > 4 ; 2 m)를 무시하고 Ctrl+Enter를 CR로 보내서, Claude Code의 Ctrl+Enter(대기 중인 메시지 바로 보내기)가 Enter로 처리되었다. herdr가 attach 클라이언트에 넘겨주는 modifyOtherKeys 요청을 PaneTerminal이 기록하고, 요청이 있을 때만 Ctrl+Enter를 CSI 27;5;13~로 보낸다. 요청이 없으면 기존처럼 CR을 유지한다. 늦게 합류한 클라이언트도 같은 상태를 받도록 ReplayBuffer가 tail 밖으로 밀려난 요청을 앞에 붙인다. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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📝 SummarySummary by CodeRabbit
WalkthroughPaneTerminal now tracks the terminal program’s modifyOtherKeys level and uses it to encode Ctrl+Enter. ReplayBuffer preserves an active level for later attachments. Unit and browser regression checks cover the key handling and replay behavior. ChangesCtrl+Enter terminal handling
Priority: ⬇️ Low Estimated code review effort: 3 (Moderate) | ~20 minutes Change: Bug fix Suggested reviewers: Merge Risk: 🔵 Low · up to Ctrl+Enter may still send the modified sequence after a program resets keyboard modes with a bare reset sequence. This is a narrow edge case, and the rest of the change looks sound. Security Architecture ReviewSecurity architecture risk: 🔵 Low · up to The change preserves a terminal program’s keyboard mode across later connections. Input restrictions remain in place, and no new security issue was identified. Some interrupted-output and reconnection behavior remains unverified. Retained concerns Security review detailsSecurity Blast Radius
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🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 66.67% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 6 functions across 7 files. (1 skipped: 1 unsupported.)
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Review comments at @src/lib/keys.ts:
- Line 56: Update the key-level tracking in src/lib/keys.ts:56 to clear the
level for a parameterless CSI >m reset. In server/output-window.ts:80, recognize
that reset in the discarded prefix and apply mode switches in stream order so
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CHANGELOG.mdscripts/terminal-ctrl-enter-regression.tsscripts/ui-regression.tsserver/output-window.test.tsserver/output-window.tssrc/components/PaneTerminal.tsxsrc/lib/keys.test.tssrc/lib/keys.ts
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…'s queued output cannot set it Maintainer follow-up on devswha#471 from a Codex review, both verified in code: - xterm resets every key-modifier resource on a parameterless CSI > m or CSI > n. The client helper kept the level (xterm.js reports the bare form as [0]) and the server's replay scanner did not match it, so a program that reset that way left Ctrl+Enter typing CSI 27;5;13~ into the shell that followed. Both layers now read it as off; an explicit CSI > 0 m (another resource) in the replay stays ignored, and the client takes [0] as off too since it cannot tell the two apart. - term.write is asynchronous and term.reset() keeps queued writes: output of a pane left behind, parsed after the switch had zeroed the level, set it again. The write callback that already drops such output now zeroes the level as well; writes are parsed in order, so no newer output has been read at that point. - CHANGELOG: the entry names the surfaces it covers (the live terminal's own keys; a phone's input line and a Windows mirror pane send Enter as before). Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Bumps package.json and herdr-plugin.toml to 0.3.50 and moves the Unreleased notes under [0.3.50] - 2026-10-06, with the compare link. Adds the PR link and credit the #471 entry was missing; every other entry already carries them. Raises the remote PC bundle to 17: #470 changes the prompt answer route on the bridge, so a remote PC on bundle 16 keeps the old behaviour until its bridge is updated. Push the `remote-v17` tag and let the bundle workflow publish before running release.yml. Known limits carried into the notes: Japanese and Chinese text uses the device's fonts beside Pretendard; #469 stays open for what #470 does not cover (answers after the first committing key, identical twin prompts, screens no reader knows). Carries #422 #423 #424 #425 #426 #435 #437 #439 #446 #447 #448 #452 #454 #455 #456 #457 #458 #459 #460 #461 #462 #463 #465 #466 #467 #468 #471 #473 #474 #475 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>
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Change
Web UI의 라이브 터미널에서 Claude Code를 쓸 때
Ctrl+Enter가 듣지 않는 문제를 고쳤습니다. 작업 중에 입력해 둔 메시지를Ctrl+Enter로 바로 보내는 기능(chat:sendNow)이 일반 터미널에서는 되지만, Web UI에서는 메시지가 대기열에 그대로 남았습니다.원인
CSI > 5 u)와 modifyOtherKeys(CSI > 4 ; 2 m)를 요청합니다. herdr는 이 요청을 attach 클라이언트에 넘기고, pane이 이미 실행 중일 때도 attach할 때마다 다시 알려 줍니다.Ctrl+Enter를CSI 13;5u나CSI 27;5;13~로 보냅니다. Claude Code는 이 시퀀스를ctrl+enter로 읽습니다.Ctrl+Enter를 일반 Enter와 같은\r로 보냅니다. 그래서 Claude Code는 메시지를 대기열에 넣기만 합니다.herdr terminal attach는 입력 바이트를 손대지 않고 pane에 넘깁니다. 격리 세션에서CSI 27;5;13~와CSI 13;5u를 보내 보니 pane에 그대로 도착했습니다.수정
PaneTerminal이 xterm 파서에CSI > … m·CSI > … n핸들러를 걸어 modifyOtherKeys 단계를 기록합니다. 이 핸들러는 기록만 하고false를 돌려주므로 xterm의 동작은 바뀌지 않습니다.Ctrl+Enter를 xterm 방식대로CSI 27;5;13~로 보냅니다. 기존Shift+Enter재매핑과 같은 자리(onKey→onData)에서 처리하므로, 대기 중인 IME 글자가 먼저 나가고 조합 중인 Enter는 IME가 그대로 가져갑니다.\r이 갑니다. bash에CSI 27;5;13~를 그대로 넣으면;5;13~같은 찌꺼기가 입력되므로, 요청이 있을 때만 바꿔야 합니다.term.reset())와 연결이 끊길 때 0으로 되돌립니다. 다시 연결하면 스트림이 모드를 처음부터, 또는 replay로 다시 알려 줍니다.ReplayBuffer는 이미 tail 밖으로 밀려난 DEC private mode를 늦게 합류한 클라이언트에게 붙여 주고 있습니다. modifyOtherKeys 요청도 같은 방식으로 붙이도록 했습니다. 이게 없으면 데스크톱 탭이 열어 둔 pane을 폰에서 나중에 열 때, 출력이 256KB를 넘긴 뒤라면 폰에서만Ctrl+Enter가 다시 Enter로 갑니다.바이트 비교
0d1b 5b 32 37 3b 35 3b 31 33 7e0d0d0d0d1b 0d1b 0d1b 0d1b 0d1b 0d1b 0d실제 Claude Code에서 확인
격리 세션(
herdr-web-ui-test)의 pane에서 Claude Code v2.1.289를 띄웠습니다. 실제 브라우저로 이 브랜치의 Web UI를 열고, "1부터 300까지 한 줄에 하나씩 세 줘"를 보냈습니다. 작업하는 동안 "세기를 멈추고 BANANA라고만 답해"를 입력하고 키를 눌렀습니다."\r"ctrl+enter to send now안내), 300까지 다 센 뒤에BANANA"\u001b[27;5;13~"BANANA다루지 않은 것
CSI 13;5u가 들어가는 상태가 남을 수 있어서 넣지 않았습니다. modifyOtherKeys는 단계 값이라 같은 요청이 두 번 와도 결과가 같습니다. Claude Code는 두 모드를 모두 켭니다.Ctrl+Enter는 그대로 Enter입니다.Validation
검증 환경: Linux(WSL), herdr 0.9.3, Bun 1.4.2, Chrome(
/opt/google/chrome/chrome)bun run generate:types --check: 통과bun run typecheck: 통과bun run build: 통과bun run test:unit: 1,276건 통과, 4건 건너뜀, 실패 없음src/lib/keys.test.ts: modifyOtherKeys 단계 해석,Ctrl+Enter시퀀스server/output-window.test.ts: 늦게 합류한 클라이언트의 replay에 modifyOtherKeys가 붙고, 꺼지면(>4;0m,>4m,>4n) 빠지는지, cut에 걸친 요청이 tail에 온전히 남는지bun run test:integration: 206건 통과, 2건 실패. 두 실패 모두 따로 돌리면 통과합니다.server/api.contract.test.ts의 "applies a resize that arrives while a covered attach is still creating the pty"는 15초 대기 타임아웃이었습니다. 이 테스트만 다시 돌려도, 파일 전체(88건)를 따로 돌려도 통과했습니다.server/codex-binding.contract.test.ts는 "no codex process"였고, 파일을 따로 돌리면 8건이 모두 통과합니다.bun scripts/ui-regression.ts: 전체 통과(PASS 72). 새로 추가한scripts/terminal-ctrl-enter-regression.ts는 테스트가 만든 pane에서 raw 모드 프로그램을 띄워 아래를 확인합니다.Ctrl+Enter는\r한 번CSI 27;5;13~한 번이 브라우저 프레임으로 나가고, pane의 프로그램도 같은 바이트를 읽음isComposing,keyCode 229)는 바꾸지 않고, 대기 중인 IME 글자한이 먼저 나감\r첫 실행에서는
scripts/alert-sound-regression.ts의.droplet-card대기가 30초 타임아웃으로 한 번 실패했습니다. 이번 변경과 관계없는 앱 내 알림 테스트이고, 다시 실행했을 때는 전체가 통과했습니다.🤖 Generated with Claude Code