feat(desktop): play completion sound on Linux

[karacsonybarni]

Why

On Ubuntu, an agent can finish while T3 Code is in the background without an audible cue. This adds a lightweight Codex CLI-like completion sound using the platform beep, while leaving web, mobile, and non-Linux desktop behavior unchanged.

What Changed

• Observe completed agent turns in the desktop renderer without replaying sounds for initial hydration or repeated state updates.
• Route completion notifications through the typed preload/IPC bridge and play Electron's native system beep on Linux only.
• Document the Linux desktop behavior and cover completion tracking, platform gating, and the Electron shell call with focused tests.

Checklist

• This PR is small and focused
• I explained what changed and why
• Screenshots are not applicable because there is no visual UI change
• Video is not applicable because there is no visual animation or interaction change

Built with GPT-5 using Codex.

Note

Play system beep on Linux when an agent turn completes

• Adds a DesktopTurnCompletionSound React component mounted globally in __root.tsx that watches thread snapshots and calls playTurnCompletionSound via window.desktopBridge once per newly completed turn.
• Adds a createTurnCompletionTracker utility that detects transitions to completed state, ignoring turns already completed on first observation and deduplicating repeat syncs.
• Adds a new desktop:play-turn-completion-sound IPC channel handled in window.ts; on Linux it calls ElectronShell.beep(), on other platforms it is a no-op.
• Exposes ElectronShell.beep as an Effect wrapping Electron.shell.beep() and adds playTurnCompletionSound to the DesktopBridge interface as an optional method.

^{Macroscope summarized b93fd06.}

---

Note

Low Risk
User-facing audio on Linux only, gated in main and renderer; no auth, data, or orchestration changes.

Overview
Adds an audible cue when agent turns finish on Linux desktop, using the platform system beep so background sessions are noticeable without changing web, mobile, or macOS/Windows behavior.

The web shell mounts DesktopTurnCompletionSound in the root layout. It watches thread shells via createTurnCompletionTracker, which only counts turns that transition to completed after the first sync—skipping hydration, repeated updates, interrupted/error turns, and threads that appear already completed.

Completion triggers window.desktopBridge.playTurnCompletionSound() through a new IPC channel; the main process calls Electron.shell.beep() only when DesktopEnvironment.platform === "linux". ElectronShell gains a beep effect; DesktopBridge documents optional playTurnCompletionSound. Install docs note Linux beep behavior; tests cover tracker logic, platform gating, and shell beep.

^{Reviewed by Cursor Bugbot for commit b93fd06. Bugbot is set up for automated code reviews on this repo. Configure here.}

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[macroscopeapp]

Approvability

Verdict: Needs human review

This PR introduces a new user-facing feature (completion sound notifications on Linux) with new components, IPC channels, and state tracking logic. New features introducing user-facing behavior warrant human review even when well-scoped.

^{You can customize Macroscope's approvability policy. Learn more.}

[t3dotgg]

Note

🤖 GPT-5.6 Sol responding on behalf of Theo

We're closing this PR as we clean up the T3 Code backlog. Thank you for taking the time to put this together.

Linux completion sounds are included in the broader cross-client sound work in #3892. This narrower branch has no separate behavior that we need to keep.

If you believe we closed this in error, please reopen the PR and leave a comment explaining what we missed.

[karacsonybarni]

Why

On Ubuntu, an agent can finish while T3 Code is in the background without an audible cue. This adds a lightweight Codex CLI-like completion sound using the platform beep, while leaving web, mobile, and non-Linux desktop behavior unchanged.

What Changed

• Observe completed agent turns in the desktop renderer without replaying sounds for initial hydration or repeated state updates.
• Route completion notifications through the typed preload/IPC bridge and play Electron's native system beep on Linux only.
• Document the Linux desktop behavior and cover completion tracking, platform gating, and the Electron shell call with focused tests.

Checklist

• This PR is small and focused
• I explained what changed and why
• Screenshots are not applicable because there is no visual UI change
• Video is not applicable because there is no visual animation or interaction change

Built with GPT-5 using Codex.

Note

Play system beep on Linux when an agent turn completes

• Adds a DesktopTurnCompletionSound React component mounted globally in __root.tsx that watches thread snapshots and calls playTurnCompletionSound via window.desktopBridge once per newly completed turn.
• Adds a createTurnCompletionTracker utility that detects transitions to completed state, ignoring turns already completed on first observation and deduplicating repeat syncs.
• Adds a new desktop:play-turn-completion-sound IPC channel handled in window.ts; on Linux it calls ElectronShell.beep(), on other platforms it is a no-op.
• Exposes ElectronShell.beep as an Effect wrapping Electron.shell.beep() and adds playTurnCompletionSound to the DesktopBridge interface as an optional method.

^{Macroscope summarized b93fd06.}

---

Note

Low Risk
User-facing audio on Linux only, gated in main and renderer; no auth, data, or orchestration changes.

Overview
Adds an audible cue when agent turns finish on Linux desktop, using the platform system beep so background sessions are noticeable without changing web, mobile, or macOS/Windows behavior.

The web shell mounts DesktopTurnCompletionSound in the root layout. It watches thread shells via createTurnCompletionTracker, which only counts turns that transition to completed after the first sync—skipping hydration, repeated updates, interrupted/error turns, and threads that appear already completed.

Completion triggers window.desktopBridge.playTurnCompletionSound() through a new IPC channel; the main process calls Electron.shell.beep() only when DesktopEnvironment.platform === "linux". ElectronShell gains a beep effect; DesktopBridge documents optional playTurnCompletionSound. Install docs note Linux beep behavior; tests cover tracker logic, platform gating, and shell beep.

^{Reviewed by Cursor Bugbot for commit b93fd06. Bugbot is set up for automated code reviews on this repo. Configure here.}

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[macroscopeapp]

Approvability

Verdict: Needs human review

This PR introduces a new user-facing feature (completion sound notifications on Linux) with new components, IPC channels, and state tracking logic. New features introducing user-facing behavior warrant human review even when well-scoped.

^{You can customize Macroscope's approvability policy. Learn more.}

[t3dotgg]

Note

🤖 GPT-5.6 Sol responding on behalf of Theo

We're closing this PR as we clean up the T3 Code backlog. Thank you for taking the time to put this together.

Linux completion sounds are included in the broader cross-client sound work in #3892. This narrower branch has no separate behavior that we need to keep.

If you believe we closed this in error, please reopen the PR and leave a comment explaining what we missed.

[karacsonybarni]

Why

On Ubuntu, an agent can finish while T3 Code is in the background without an audible cue. This adds a lightweight Codex CLI-like completion sound using the platform beep, while leaving web, mobile, and non-Linux desktop behavior unchanged.

What Changed

• Observe completed agent turns in the desktop renderer without replaying sounds for initial hydration or repeated state updates.
• Route completion notifications through the typed preload/IPC bridge and play Electron's native system beep on Linux only.
• Document the Linux desktop behavior and cover completion tracking, platform gating, and the Electron shell call with focused tests.

Checklist

• This PR is small and focused
• I explained what changed and why
• Screenshots are not applicable because there is no visual UI change
• Video is not applicable because there is no visual animation or interaction change

Built with GPT-5 using Codex.

Note

Play system beep on Linux when an agent turn completes

• Adds a DesktopTurnCompletionSound React component mounted globally in __root.tsx that watches thread snapshots and calls playTurnCompletionSound via window.desktopBridge once per newly completed turn.
• Adds a createTurnCompletionTracker utility that detects transitions to completed state, ignoring turns already completed on first observation and deduplicating repeat syncs.
• Adds a new desktop:play-turn-completion-sound IPC channel handled in window.ts; on Linux it calls ElectronShell.beep(), on other platforms it is a no-op.
• Exposes ElectronShell.beep as an Effect wrapping Electron.shell.beep() and adds playTurnCompletionSound to the DesktopBridge interface as an optional method.

^{Macroscope summarized b93fd06.}

---

Note

Low Risk
User-facing audio on Linux only, gated in main and renderer; no auth, data, or orchestration changes.

Overview
Adds an audible cue when agent turns finish on Linux desktop, using the platform system beep so background sessions are noticeable without changing web, mobile, or macOS/Windows behavior.

The web shell mounts DesktopTurnCompletionSound in the root layout. It watches thread shells via createTurnCompletionTracker, which only counts turns that transition to completed after the first sync—skipping hydration, repeated updates, interrupted/error turns, and threads that appear already completed.

Completion triggers window.desktopBridge.playTurnCompletionSound() through a new IPC channel; the main process calls Electron.shell.beep() only when DesktopEnvironment.platform === "linux". ElectronShell gains a beep effect; DesktopBridge documents optional playTurnCompletionSound. Install docs note Linux beep behavior; tests cover tracker logic, platform gating, and shell beep.

^{Reviewed by Cursor Bugbot for commit b93fd06. Bugbot is set up for automated code reviews on this repo. Configure here.}

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Cursor Bugbot has reviewed your changes using high effort and found 1 potential issue.

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[macroscopeapp]

Approvability

Verdict: Needs human review

This PR introduces a new user-facing feature (completion sound notifications on Linux) with new components, IPC channels, and state tracking logic. New features introducing user-facing behavior warrant human review even when well-scoped.

^{You can customize Macroscope's approvability policy. Learn more.}

[t3dotgg]

Note

🤖 GPT-5.6 Sol responding on behalf of Theo

We're closing this PR as we clean up the T3 Code backlog. Thank you for taking the time to put this together.

Linux completion sounds are included in the broader cross-client sound work in #3892. This narrower branch has no separate behavior that we need to keep.

If you believe we closed this in error, please reopen the PR and leave a comment explaining what we missed.

[karacsonybarni]

Why

On Ubuntu, an agent can finish while T3 Code is in the background without an audible cue. This adds a lightweight Codex CLI-like completion sound using the platform beep, while leaving web, mobile, and non-Linux desktop behavior unchanged.

What Changed

• Observe completed agent turns in the desktop renderer without replaying sounds for initial hydration or repeated state updates.
• Route completion notifications through the typed preload/IPC bridge and play Electron's native system beep on Linux only.
• Document the Linux desktop behavior and cover completion tracking, platform gating, and the Electron shell call with focused tests.

Checklist

• This PR is small and focused
• I explained what changed and why
• Screenshots are not applicable because there is no visual UI change
• Video is not applicable because there is no visual animation or interaction change

Built with GPT-5 using Codex.

Note

Play system beep on Linux when an agent turn completes

• Adds a DesktopTurnCompletionSound React component mounted globally in __root.tsx that watches thread snapshots and calls playTurnCompletionSound via window.desktopBridge once per newly completed turn.
• Adds a createTurnCompletionTracker utility that detects transitions to completed state, ignoring turns already completed on first observation and deduplicating repeat syncs.
• Adds a new desktop:play-turn-completion-sound IPC channel handled in window.ts; on Linux it calls ElectronShell.beep(), on other platforms it is a no-op.
• Exposes ElectronShell.beep as an Effect wrapping Electron.shell.beep() and adds playTurnCompletionSound to the DesktopBridge interface as an optional method.

^{Macroscope summarized b93fd06.}

---

Note

Low Risk
User-facing audio on Linux only, gated in main and renderer; no auth, data, or orchestration changes.

Overview
Adds an audible cue when agent turns finish on Linux desktop, using the platform system beep so background sessions are noticeable without changing web, mobile, or macOS/Windows behavior.

The web shell mounts DesktopTurnCompletionSound in the root layout. It watches thread shells via createTurnCompletionTracker, which only counts turns that transition to completed after the first sync—skipping hydration, repeated updates, interrupted/error turns, and threads that appear already completed.

Completion triggers window.desktopBridge.playTurnCompletionSound() through a new IPC channel; the main process calls Electron.shell.beep() only when DesktopEnvironment.platform === "linux". ElectronShell gains a beep effect; DesktopBridge documents optional playTurnCompletionSound. Install docs note Linux beep behavior; tests cover tracker logic, platform gating, and shell beep.

^{Reviewed by Cursor Bugbot for commit b93fd06. Bugbot is set up for automated code reviews on this repo. Configure here.}

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[cursor]

Cursor Bugbot has reviewed your changes using high effort and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

Want fixes drafted automatically? Bugbot Autofix can create code changes for findings. A team admin can enable Autofix in the Cursor dashboard.

^{Reviewed by Cursor Bugbot for commit d2df20a. Configure here.}

[macroscopeapp]

Approvability

Verdict: Needs human review

This PR introduces a new user-facing feature (completion sound notifications on Linux) with new components, IPC channels, and state tracking logic. New features introducing user-facing behavior warrant human review even when well-scoped.

^{You can customize Macroscope's approvability policy. Learn more.}

[t3dotgg]

Note

🤖 GPT-5.6 Sol responding on behalf of Theo

We're closing this PR as we clean up the T3 Code backlog. Thank you for taking the time to put this together.

Linux completion sounds are included in the broader cross-client sound work in #3892. This narrower branch has no separate behavior that we need to keep.

If you believe we closed this in error, please reopen the PR and leave a comment explaining what we missed.

[karacsonybarni]

Why

On Ubuntu, an agent can finish while T3 Code is in the background without an audible cue. This adds a lightweight Codex CLI-like completion sound using the platform beep, while leaving web, mobile, and non-Linux desktop behavior unchanged.

What Changed

• Observe completed agent turns in the desktop renderer without replaying sounds for initial hydration or repeated state updates.
• Route completion notifications through the typed preload/IPC bridge and play Electron's native system beep on Linux only.
• Document the Linux desktop behavior and cover completion tracking, platform gating, and the Electron shell call with focused tests.

Checklist

• This PR is small and focused
• I explained what changed and why
• Screenshots are not applicable because there is no visual UI change
• Video is not applicable because there is no visual animation or interaction change

Built with GPT-5 using Codex.

Note

Play system beep on Linux when an agent turn completes

• Adds a DesktopTurnCompletionSound React component mounted globally in __root.tsx that watches thread snapshots and calls playTurnCompletionSound via window.desktopBridge once per newly completed turn.
• Adds a createTurnCompletionTracker utility that detects transitions to completed state, ignoring turns already completed on first observation and deduplicating repeat syncs.
• Adds a new desktop:play-turn-completion-sound IPC channel handled in window.ts; on Linux it calls ElectronShell.beep(), on other platforms it is a no-op.
• Exposes ElectronShell.beep as an Effect wrapping Electron.shell.beep() and adds playTurnCompletionSound to the DesktopBridge interface as an optional method.

^{Macroscope summarized b93fd06.}

---

Note

Low Risk
User-facing audio on Linux only, gated in main and renderer; no auth, data, or orchestration changes.

Overview
Adds an audible cue when agent turns finish on Linux desktop, using the platform system beep so background sessions are noticeable without changing web, mobile, or macOS/Windows behavior.

The web shell mounts DesktopTurnCompletionSound in the root layout. It watches thread shells via createTurnCompletionTracker, which only counts turns that transition to completed after the first sync—skipping hydration, repeated updates, interrupted/error turns, and threads that appear already completed.

Completion triggers window.desktopBridge.playTurnCompletionSound() through a new IPC channel; the main process calls Electron.shell.beep() only when DesktopEnvironment.platform === "linux". ElectronShell gains a beep effect; DesktopBridge documents optional playTurnCompletionSound. Install docs note Linux beep behavior; tests cover tracker logic, platform gating, and shell beep.

^{Reviewed by Cursor Bugbot for commit b93fd06. Bugbot is set up for automated code reviews on this repo. Configure here.}

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Cursor Bugbot has reviewed your changes using high effort and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

Want fixes drafted automatically? Bugbot Autofix can create code changes for findings. A team admin can enable Autofix in the Cursor dashboard.

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[macroscopeapp]

Approvability

Verdict: Needs human review

This PR introduces a new user-facing feature (completion sound notifications on Linux) with new components, IPC channels, and state tracking logic. New features introducing user-facing behavior warrant human review even when well-scoped.

^{You can customize Macroscope's approvability policy. Learn more.}

[t3dotgg]

Note

🤖 GPT-5.6 Sol responding on behalf of Theo

We're closing this PR as we clean up the T3 Code backlog. Thank you for taking the time to put this together.

Linux completion sounds are included in the broader cross-client sound work in #3892. This narrower branch has no separate behavior that we need to keep.

If you believe we closed this in error, please reopen the PR and leave a comment explaining what we missed.

[karacsonybarni]

Why

On Ubuntu, an agent can finish while T3 Code is in the background without an audible cue. This adds a lightweight Codex CLI-like completion sound using the platform beep, while leaving web, mobile, and non-Linux desktop behavior unchanged.

What Changed

• Observe completed agent turns in the desktop renderer without replaying sounds for initial hydration or repeated state updates.
• Route completion notifications through the typed preload/IPC bridge and play Electron's native system beep on Linux only.
• Document the Linux desktop behavior and cover completion tracking, platform gating, and the Electron shell call with focused tests.

Checklist

• This PR is small and focused
• I explained what changed and why
• Screenshots are not applicable because there is no visual UI change
• Video is not applicable because there is no visual animation or interaction change

Built with GPT-5 using Codex.

Note

Play system beep on Linux when an agent turn completes

• Adds a DesktopTurnCompletionSound React component mounted globally in __root.tsx that watches thread snapshots and calls playTurnCompletionSound via window.desktopBridge once per newly completed turn.
• Adds a createTurnCompletionTracker utility that detects transitions to completed state, ignoring turns already completed on first observation and deduplicating repeat syncs.
• Adds a new desktop:play-turn-completion-sound IPC channel handled in window.ts; on Linux it calls ElectronShell.beep(), on other platforms it is a no-op.
• Exposes ElectronShell.beep as an Effect wrapping Electron.shell.beep() and adds playTurnCompletionSound to the DesktopBridge interface as an optional method.

^{Macroscope summarized b93fd06.}

---

Note

Low Risk
User-facing audio on Linux only, gated in main and renderer; no auth, data, or orchestration changes.

Overview
Adds an audible cue when agent turns finish on Linux desktop, using the platform system beep so background sessions are noticeable without changing web, mobile, or macOS/Windows behavior.

The web shell mounts DesktopTurnCompletionSound in the root layout. It watches thread shells via createTurnCompletionTracker, which only counts turns that transition to completed after the first sync—skipping hydration, repeated updates, interrupted/error turns, and threads that appear already completed.

Completion triggers window.desktopBridge.playTurnCompletionSound() through a new IPC channel; the main process calls Electron.shell.beep() only when DesktopEnvironment.platform === "linux". ElectronShell gains a beep effect; DesktopBridge documents optional playTurnCompletionSound. Install docs note Linux beep behavior; tests cover tracker logic, platform gating, and shell beep.

^{Reviewed by Cursor Bugbot for commit b93fd06. Bugbot is set up for automated code reviews on this repo. Configure here.}

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Cursor Bugbot has reviewed your changes using high effort and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

Want fixes drafted automatically? Bugbot Autofix can create code changes for findings. A team admin can enable Autofix in the Cursor dashboard.

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[macroscopeapp]

Approvability

Verdict: Needs human review

This PR introduces a new user-facing feature (completion sound notifications on Linux) with new components, IPC channels, and state tracking logic. New features introducing user-facing behavior warrant human review even when well-scoped.

^{You can customize Macroscope's approvability policy. Learn more.}

[t3dotgg]

Note

🤖 GPT-5.6 Sol responding on behalf of Theo

We're closing this PR as we clean up the T3 Code backlog. Thank you for taking the time to put this together.

Linux completion sounds are included in the broader cross-client sound work in #3892. This narrower branch has no separate behavior that we need to keep.

If you believe we closed this in error, please reopen the PR and leave a comment explaining what we missed.

[karacsonybarni]

Why

On Ubuntu, an agent can finish while T3 Code is in the background without an audible cue. This adds a lightweight Codex CLI-like completion sound using the platform beep, while leaving web, mobile, and non-Linux desktop behavior unchanged.

What Changed

• Observe completed agent turns in the desktop renderer without replaying sounds for initial hydration or repeated state updates.
• Route completion notifications through the typed preload/IPC bridge and play Electron's native system beep on Linux only.
• Document the Linux desktop behavior and cover completion tracking, platform gating, and the Electron shell call with focused tests.

Checklist

• This PR is small and focused
• I explained what changed and why
• Screenshots are not applicable because there is no visual UI change
• Video is not applicable because there is no visual animation or interaction change

Built with GPT-5 using Codex.

Note

Play system beep on Linux when an agent turn completes

• Adds a DesktopTurnCompletionSound React component mounted globally in __root.tsx that watches thread snapshots and calls playTurnCompletionSound via window.desktopBridge once per newly completed turn.
• Adds a createTurnCompletionTracker utility that detects transitions to completed state, ignoring turns already completed on first observation and deduplicating repeat syncs.
• Adds a new desktop:play-turn-completion-sound IPC channel handled in window.ts; on Linux it calls ElectronShell.beep(), on other platforms it is a no-op.
• Exposes ElectronShell.beep as an Effect wrapping Electron.shell.beep() and adds playTurnCompletionSound to the DesktopBridge interface as an optional method.

^{Macroscope summarized b93fd06.}

---

Note

Low Risk
User-facing audio on Linux only, gated in main and renderer; no auth, data, or orchestration changes.

Overview
Adds an audible cue when agent turns finish on Linux desktop, using the platform system beep so background sessions are noticeable without changing web, mobile, or macOS/Windows behavior.

The web shell mounts DesktopTurnCompletionSound in the root layout. It watches thread shells via createTurnCompletionTracker, which only counts turns that transition to completed after the first sync—skipping hydration, repeated updates, interrupted/error turns, and threads that appear already completed.

Completion triggers window.desktopBridge.playTurnCompletionSound() through a new IPC channel; the main process calls Electron.shell.beep() only when DesktopEnvironment.platform === "linux". ElectronShell gains a beep effect; DesktopBridge documents optional playTurnCompletionSound. Install docs note Linux beep behavior; tests cover tracker logic, platform gating, and shell beep.

^{Reviewed by Cursor Bugbot for commit b93fd06. Bugbot is set up for automated code reviews on this repo. Configure here.}

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[cursor]

Cursor Bugbot has reviewed your changes using high effort and found 1 potential issue.

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[macroscopeapp]

Approvability

Verdict: Needs human review

This PR introduces a new user-facing feature (completion sound notifications on Linux) with new components, IPC channels, and state tracking logic. New features introducing user-facing behavior warrant human review even when well-scoped.

^{You can customize Macroscope's approvability policy. Learn more.}

[t3dotgg]

Note

🤖 GPT-5.6 Sol responding on behalf of Theo

We're closing this PR as we clean up the T3 Code backlog. Thank you for taking the time to put this together.

Linux completion sounds are included in the broader cross-client sound work in #3892. This narrower branch has no separate behavior that we need to keep.

If you believe we closed this in error, please reopen the PR and leave a comment explaining what we missed.

[karacsonybarni]

Why

On Ubuntu, an agent can finish while T3 Code is in the background without an audible cue. This adds a lightweight Codex CLI-like completion sound using the platform beep, while leaving web, mobile, and non-Linux desktop behavior unchanged.

What Changed

• Observe completed agent turns in the desktop renderer without replaying sounds for initial hydration or repeated state updates.
• Route completion notifications through the typed preload/IPC bridge and play Electron's native system beep on Linux only.
• Document the Linux desktop behavior and cover completion tracking, platform gating, and the Electron shell call with focused tests.

Checklist

• This PR is small and focused
• I explained what changed and why
• Screenshots are not applicable because there is no visual UI change
• Video is not applicable because there is no visual animation or interaction change

Built with GPT-5 using Codex.

Note

Play system beep on Linux when an agent turn completes

• Adds a DesktopTurnCompletionSound React component mounted globally in __root.tsx that watches thread snapshots and calls playTurnCompletionSound via window.desktopBridge once per newly completed turn.
• Adds a createTurnCompletionTracker utility that detects transitions to completed state, ignoring turns already completed on first observation and deduplicating repeat syncs.
• Adds a new desktop:play-turn-completion-sound IPC channel handled in window.ts; on Linux it calls ElectronShell.beep(), on other platforms it is a no-op.
• Exposes ElectronShell.beep as an Effect wrapping Electron.shell.beep() and adds playTurnCompletionSound to the DesktopBridge interface as an optional method.

^{Macroscope summarized b93fd06.}

---

Note

Low Risk
User-facing audio on Linux only, gated in main and renderer; no auth, data, or orchestration changes.

Overview
Adds an audible cue when agent turns finish on Linux desktop, using the platform system beep so background sessions are noticeable without changing web, mobile, or macOS/Windows behavior.

The web shell mounts DesktopTurnCompletionSound in the root layout. It watches thread shells via createTurnCompletionTracker, which only counts turns that transition to completed after the first sync—skipping hydration, repeated updates, interrupted/error turns, and threads that appear already completed.

Completion triggers window.desktopBridge.playTurnCompletionSound() through a new IPC channel; the main process calls Electron.shell.beep() only when DesktopEnvironment.platform === "linux". ElectronShell gains a beep effect; DesktopBridge documents optional playTurnCompletionSound. Install docs note Linux beep behavior; tests cover tracker logic, platform gating, and shell beep.

^{Reviewed by Cursor Bugbot for commit b93fd06. Bugbot is set up for automated code reviews on this repo. Configure here.}

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Cursor Bugbot has reviewed your changes using high effort and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

Want fixes drafted automatically? Bugbot Autofix can create code changes for findings. A team admin can enable Autofix in the Cursor dashboard.

^{Reviewed by Cursor Bugbot for commit d2df20a. Configure here.}

[macroscopeapp]

Approvability

Verdict: Needs human review

This PR introduces a new user-facing feature (completion sound notifications on Linux) with new components, IPC channels, and state tracking logic. New features introducing user-facing behavior warrant human review even when well-scoped.

^{You can customize Macroscope's approvability policy. Learn more.}

[t3dotgg]

Note

🤖 GPT-5.6 Sol responding on behalf of Theo

We're closing this PR as we clean up the T3 Code backlog. Thank you for taking the time to put this together.

Linux completion sounds are included in the broader cross-client sound work in #3892. This narrower branch has no separate behavior that we need to keep.

If you believe we closed this in error, please reopen the PR and leave a comment explaining what we missed.