Fix Escape passthrough from TextBox to running agents - #9810
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Included review availability: Your plan provides up to 10 included reviews per hour; 0 remain after this review. 📝 WalkthroughWalkthroughTextBox Escape events now reach the PTY when the containing workspace or Dock agent is running. Shared lifecycle aggregation resolves workspace and Dock state. Tests cover direct and physical Escape handling, rejection cases, focus behavior, and fixture cleanup. ChangesAgent-aware Escape passthrough
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: ⚪ Minimal · up to This localized Escape-routing change is merge-ready after normal checks and review; no actionable merge-blocking risk remains. Suggested reviewers: Sequence Diagram(s)sequenceDiagram
participant User
participant TextBox
participant TerminalPanel
participant WorkspaceOrDock
participant PTY
User->>TextBox: Press Escape
TextBox->>TerminalPanel: Call handleTextBoxEscape()
TerminalPanel->>WorkspaceOrDock: Resolve agent lifecycle
WorkspaceOrDock-->>TerminalPanel: Return lifecycle state
alt State is running
TerminalPanel->>PTY: Send Escape
end
TerminalPanel->>TextBox: Hide TextBox and restore terminal focus
Important Pre-merge checks failedPlease resolve all errors before merging. Addressing warnings is optional. ❌ Failed checks (2 errors, 1 warning)
✅ Passed checks (22 passed)
Full details: Description checkExplanation The description provides the root cause, implementation, regression coverage, validation results, and testing limitations. It does not reproduce every template heading or checklist item, but it is substantively complete. Full details: Linked Issues checkExplanation The changes satisfy issue Full details: Cmux Swift Actor IsolationExplanation No actor-isolation failure is introduced. The production diff adds pure aggregation methods to the existing Full details: Cmux Swift Blocking RuntimeExplanation PASS — The PR diff from merge-base Full details: Cmux Browser Automation Off-MainExplanation PASS. The PR changes six lifecycle, TextBox, test, and Xcode project files. It does not change Full details: Cmux Expensive Synchronous LoadExplanation PASS. The production diff adds no synchronous agent-history or file loader. Full details: Cmux Cache Substitution CorrectnessExplanation No cache substitution occurs in a persistence-sensitive path. The cumulative diff adds lifecycle reads only to Full details: Cmux No Hacky SleepsExplanation PASS: The PR changes only Swift source/tests and four Xcode project wiring lines. No TypeScript, JavaScript, shell, or build/runtime script changes exist. The actual diff adds no sleep, timer, polling, delay, or wall-clock synchronization construct in the covered file types. Swift timing is outside this check's scope, and the added test scaffolding is test-only. Full details: Cmux Algorithmic ComplexityExplanation The PR adds an unbounded collection scan to the TextBox Escape input path. Resolution Change Full details: Cmux Swift ConcurrencyExplanation PASS. The PR diff adds synchronous lifecycle aggregation and Escape routing only. It introduces no DispatchQueue, DispatchGroup, Task, Combine, completion-handler, async/await, or actor pattern in cmux-owned production code. The only concurrency-related addition is Full details: Cmux Swift `@Concurrent`Explanation PASS — The pull request adds only synchronous Swift functions and a synchronous Full details: Cmux Swift Package BoundariesExplanation The PR adds pure agent lifecycle domain logic to the app-target source tree. Resolution Create a small macOS SwiftPM target named Full details: Cmux Swiftpm LockfilesExplanation PASS. The PR changes only Swift source, a test source, and four Xcode source/file-group entries. The Full details: Cmux Swift LoggingExplanation PASS: The PR diff adds no Full details: Cmux User-Facing Error PrivacyExplanation PASS — The production diff changes Escape routing and lifecycle aggregation only. It adds no user-facing errors, alerts, command output, API error bodies, or recovery copy. The new Full details: Cmux Full InternationalizationExplanation PASS — The complete PR diff adds no user-facing production text. The production changes only add lifecycle aggregation and forward the existing Escape protocol token. The new English strings are in tests and are explicitly allowed. No app string catalogs, Info.plist localization files, web locale files, or message entries are changed. Full details: Cmux Swiftui State LayoutExplanation PASS: The PR does not introduce a SwiftUI state or layout pattern covered by the rule. The net diff adds lifecycle aggregation methods, an Escape event handler, and AppKit tests. Full details: Cmux Architecture RethinkExplanation The diff is a small, owner-preserving correctness fix. Full details: Cmux Swift Auxiliary Window Close ShortcutsExplanation PASS. The pull request does not add or materially change a standalone cmux-owned auxiliary window. Production changes only lifecycle aggregation and TextBox Escape handling. The new test uses an existing Full details: Cmux Source ArtifactsExplanation PASS — The cumulative PR diff contains only four hand-written Swift source files, one new Swift test file, and four deliberate Xcode project wiring entries. The new test is under Full details: Cmux No Test Or Debug Seam In Production SourceExplanation PASS. The production diff adds lifecycle aggregation and Escape-routing behavior, not a test/debug seam. Full details: Cmux No Ambient Global StateExplanation The production diff adds no ambient global state. The new lifecycle functions in ✨ Finishing Touches 💡 1📝 Generate docstrings 💡
🧪 Generate unit tests (beta)
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Resolved the CodeRabbit package-boundary suggestion without a code change. AgentHibernationLifecycleState and its status-key policy predate this PR and are already intentionally compiled into both the app and CLI targets. This PR adds no new consumer or dependency edge; it centralizes the existing Workspace precedence so Dock ownership uses that same authoritative rule. A standalone CmuxAgentLifecycle package would be a narrow logic slice rather than the whole-domain boundary required by skills/cmux-architecture/SKILL.md, while migrating the full agent-lifecycle domain is unrelated to the Escape regression. The canonical cmux policy review and branch autoreview are both clean on abca270. |
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Greptile SummaryThe PR restores Escape passthrough from TextBox to the panel terminal while a supported agent lifecycle is running, preserving the existing focus and second-Escape behavior.
Confidence Score: 5/5The PR appears safe to merge. No blocking failure remains. Important Files Changed
Flowchart%%{init: {'theme': 'neutral'}}%%
flowchart TD
A[Escape in TextBox] --> B{Live Dock owns panel?}
B -- Yes --> C[Read Dock lifecycle]
B -- No --> D[Read workspace lifecycle]
C --> E{Supported lifecycle is running?}
D --> E
E -- Yes --> F[Send Escape to panel PTY]
E -- No --> G[Do not send PTY key]
F --> H[Focus terminal and arm second-Escape hide]
G --> H
Reviews (7): Last reviewed commit: "test: stabilize physical TextBox Escape ..." | Re-trigger Greptile |
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Inline comments:
In `@ghostty`:
- Line 1: Retain the Ghostty submodule at commit
b17f1726fc53495dd827f7d85c9ec38da3d03814 or move it to a compatible descendant;
do not use 11aa609d75dec882ef2f83171e2cbe887aeddbc5, which removes APIs required
by cmux.
In `@Sources/AgentHibernation/AgentHibernationLifecycleState.swift`:
- Around line 32-34: Update the state aggregation in the lifecycle-state
computation to retain only entries whose keys pass
AgentHibernationLifecycleStatusKeys.isAllowed, while preserving the existing
exclusion of manual keys and value mapping. Add coverage verifying that an
unsupported .running key is ignored and cannot produce an active lifecycle
state.
In `@vendor/bonsplit`:
- Line 1: Restore TabDragTransferRegistry, TabDragTransfer,
TabDragTransferRegistration, and
BonsplitController.init(configuration:tabDragTransferRegistry:) in the bonsplit
submodule before updating it, preserving the APIs required by cmux callers such
as Workspace.
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📒 Files selected for processing (8)
Sources/AgentHibernation/AgentHibernationLifecycleState.swiftSources/DockSplitStore+RestoredAgentLifecycle.swiftSources/Panels/TerminalPanel.swiftSources/Workspace+AgentLifecycle.swiftcmux.xcodeproj/project.pbxprojcmuxTests/TextBoxEscapePassthroughTests.swiftghosttyvendor/bonsplit
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87f3197 Integrate Escape passthrough fix from PR manaflow-ai#9810 (manaflow-ai#10959) aa8ca45 refactor(tui): share draw and paint render path (manaflow-ai#10970) 2f95b87 observability: flush Sentry after the response, or events never leave the lambda (manaflow-ai#10972)
7391d87 to
09dfa0e
Compare
Final review audit (re-checked against HEAD)Re-checked on 2026-09-01 against PR HEAD The exact PR HEAD passed hosted run 33494544906: Because #9810 is now a conflicting duplicate of that merged change and carries an unrelated Ghostty submodule pointer, the expert disposition is to close #9810 as superseded rather than merge it. This is intentional; no additional code fix is required. No Top-level review bodies
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Fixes #9704.
Root cause
A physical Escape reaches Claude Code when Ghostty owns first responder. When TextBoxInputTextView owns first responder, it consumes Escape and calls TerminalPanel.handleTextBoxEscape(); that action previously only focused the terminal and armed second-Escape hiding, so no Escape reached the PTY.
Fix
TerminalPanel remains the single TextBox Escape action owner. It resolves live Dock ownership before workspace fallback, aggregates the authoritative per-panel lifecycle with the existing precedence while excluding manual loading keys, and forwards Escape only when that lifecycle is running. Existing focus and two-Escape-hide behavior remains intact in every state.
Regression coverage
Validation
Dogfood evidence
Runtime reproduction was completed locally before the fix. Cloud video capture was blocked because the loader joined the Switchboard Tailscale tailnet and was unreachable from the local Mac, so no CUA/video capture was possible.
Localization audit
No user-facing strings changed, so no localization catalog or web message update is required.
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@codesmith-botwith what you need. Autofix is disabled.Summary by cubic
Passes Escape from the TextBox to the terminal when a running, allowlisted agent turn is active (now including
campfire), restoring terminal interrupts while preserving TextBox focus and two‑Escape hide. Previously Escape was consumed by the TextBox and never reached the PTY.TerminalPanel.handleTextBoxEscape()sends Escape to the PTY only if the Dock-first then workspace-fallback lifecycle is.running; otherwise it just refocuses the terminal and arms hide‑on‑next‑Escape.AgentHibernationLifecycleState.aggregateandaggregateForTextBoxEscape; the latter filters to built‑in allowed keys and excludes manual keys.WorkspaceandDockSplitStoreexposeagentLifecycleStateForTextBoxEscape. Allowed keys now includecampfire.TextBoxEscapePassthroughTestscover workspace/Dock running (Claude Code and Campfire), idle, manual, unsupported keys, and the stabilized physical TextBox keyDown path.Written for commit 09dfa0e. Summary will update on new commits.
Note
Low Risk
Localized input routing change gated on existing lifecycle aggregation; no auth or persistence changes. Regression tests cover main edge cases.
Overview
Escape from the TextBox now reaches the terminal when an agent turn is running, fixing cases where TextBox owned first responder and consumed Escape without sending it to the PTY (e.g. interrupting Claude Code).
TerminalPanel.handleTextBoxEscape()checks aggregated panel lifecycle via Dock-first then workspace fallback; when state is.running, it sends Escape throughsendNamedKeyResultbefore the existing focus-terminal and two-Escape-hide logic. Idle, unknown, and manual loading activity still do not passthrough.Lifecycle aggregation is centralized in
AgentHibernationLifecycleState.aggregate(manual keys excluded, same precedence as before).WorkspaceandDockSplitStoreboth call it throughagentHibernationLifecycleState.New
TextBoxEscapePassthroughTestscover workspace and Dock running/idle/manual scenarios plus focused TextBox keyDown routing.Reviewed by Cursor Bugbot for commit 547aaf4. Bugbot is set up for automated code reviews on this repo. Configure here.
Summary by CodeRabbit
New Features
Bug Fixes
Tests