Only post a screen frame when the turn used the computer by guilimasp · Pull Request #37 · milind-soni/OpenMausBot

guilimasp · 2026-08-12T23:37:21Z

turn.completed pastes the last screen frame into the transcript whenever the bot has a computer attached. That is the right moment when the bot has been clicking around, but it also fires for turns that never touched the desktop — so a chat about email, or a one-word "yes", still ends with a picture of an idle desktop, and the same image repeats after every reply.

This tracks whether any mcp__computer__* tool ran during the turn and posts the frame only then. The Computer panel is untouched: it keeps polling and still shows the live screen.

pnpm typecheck && pnpm test pass.

Summary by CodeRabbit

Bug Fixes
- Prevented unnecessary screenshots from being captured when a turn did not interact with the screen.
- Preserved a final screenshot for turns that used screen-based interactions.
- Improved screenshot handling for box-agent turns.

coderabbitai · 2026-08-13T16:47:42Z

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server/index.ts

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server/index.ts

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📝 Walkthrough

Walkthrough

Screen polling now records whether each turn used the screen. Box-agent turns start as screen-active, screen events mark turns as touched, and final screenshots are skipped for untouched turns. Poller startup also checks whether the bot remains busy.

Changes

Screen polling behavior

Layer / File(s)	Summary
Track screen usage `server/index.ts`	The screen poller stores a per-turn `touched` flag, initializes it from `screenIsTheWork`, and sets it when screen activity occurs.
Control final capture `server/index.ts`	Turn dispatch starts polling only while the bot remains busy and enables screen-based initialization for box-agent turns. Final capture skips untouched turns while still stopping the poller.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: ⚪ Minimal · up to 40e47

The change limits transcript screen-frame posts to turns that use the computer, while leaving the live Computer panel unchanged. No actionable merge-blocking risk remains beyond normal checks and review.

Possibly related PRs

milind-soni/OpenMausBot#70: Extends the screen-polling logic in server/index.ts for final transcript screenshots.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the main change: posting a screen frame only when the turn used the computer.
Description check	✅ Passed	The description explains what changed, why it changed, and how it was verified, but it omits the template headings and checklist.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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guilimasp · 2026-08-13T16:47:59Z

Force-pushed a rewrite against v0.1.14 — the original was cut before the chat overhaul moved this fold, so it had gone conflicting. Same idea, one file, and two things tightened while I was in there:

the mark now clears on every turn.completed, not only when a frame was actually captured, so it can't leak into a later reply
it clears for threads with no bot of their own (a room member's turn) too

pnpm typecheck && pnpm test pass on the rewritten branch.

050 stopped applying when the chat overhaul moved the fold, so every turn has been settling an idle desktop into the transcript again. Refreshed from the rewritten upstream PR (milind-soni#37), which also clears the mark on every turn.completed instead of only when a frame was captured. Only 060-paste-images stays dead now; its PR (milind-soni#38) is closed. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0197wYuWWpF21iBeNgHZ8n3X

milind-soni

The goal is good, but the event fold has changed since this branch: finalScreenFrame is async and the current completed-tool path already derives toolName for screen pokes. Please rebase and track usage from that current path, then gate the async final frame without regressing boxAgent turns or leaking per-turn state.

turn.completed folds the last frame into the transcript whenever the bot has a computer attached. That is the right moment after the bot has been clicking around, but it fires for turns that never touched the desktop too — so a chat about email, or a one-word "yes", ends with a picture of an idle desktop, and the same image repeats after every reply. Track usage on the poke path that already derives toolName for exactly this question: a completed computer tool is both the reason to refresh the preview now and the proof the final frame is worth keeping. The flag lives on the poller entry, which is created and torn down per turn, so it cannot leak into a later one. boxAgent turns start already marked — the box IS that agent's session, so every tool it calls acts on that screen even though none is named like a computer tool. An untouched turn also skips the final capture, which is one less command on the box's single endpoint.

guilimasp · 2026-08-14T14:32:50Z

Rebased onto current main and rewritten against the new fold — thanks for pointing at the right path, it made this smaller than what I had.

Usage is tracked from the existing completed-tool path: pokeScreenPoller already fires exactly when a computer tool completes, so it now sets the flag as well. Same signal read twice — the reason to refresh the preview now, and the proof the final frame is worth settling.
No per-turn state anywhere new. The flag lives on the screenPollers entry, which is created at dispatch and torn down in finalScreenFrame / stopScreenPoller — including on interrupt and bot delete — so it dies with the turn that set it.
boxAgent is not regressed: startScreenPoller takes screenIsTheWork, true for that driver, so its turns start already marked. The box is its session, so every tool it calls acts on that screen even though none is named like a computer tool. Its behavior is byte-for-byte what it was.
finalScreenFrame stays async and still awaits any in-flight poke. An untouched turn returns null before the capture, so it is also one less command on the box's single endpoint.

pnpm typecheck && pnpm test pass.

One thing I did not do, happy to if you want it: the poller closure is not reachable from a test today. I can lift screenPollers and friends into server/screen-poller.ts with the box calls injected and pin this behavior properly — but that is a wider diff than the fix, so I left it out rather than smuggle it in here.

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Inline comments:
In `@server/index.ts`:
- Around line 359-369: Update startTurn so screen-poller initialization occurs
only if the turn is still active after sendTurn returns; avoid creating the
interval when synchronous turn.completed processing has already performed
terminal cleanup, while preserving normal polling for active turns.

Apply the same fix in `@server/index.ts` around lines 685 - 687: This is the same
synchronous-completion race at the later poller-registration site.

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server/index.ts

The poller is registered after sendTurn returns, but a turn can settle before that — and a poller started after its own turn.completed is never torn down. It polls the box every 6s forever, holding per-turn state that belongs to a finished turn. Guard on the bot still being busy: the fold flips that false at turn.completed, so it is the honest "is this turn still running".

050 stopped applying when the chat overhaul moved the fold, so every turn has been settling an idle desktop into the transcript again. Refreshed from the rewritten upstream PR (milind-soni#37), which also clears the mark on every turn.completed instead of only when a frame was captured. Only 060-paste-images stays dead now; its PR (milind-soni#38) is closed. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0197wYuWWpF21iBeNgHZ8n3X

…-when-used

050 stopped applying when the chat overhaul moved the fold, so every turn has been settling an idle desktop into the transcript again. Refreshed from the rewritten upstream PR (milind-soni#37), which also clears the mark on every turn.completed instead of only when a frame was captured. Only 060-paste-images stays dead now; its PR (milind-soni#38) is closed. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0197wYuWWpF21iBeNgHZ8n3X

Every patch had rotted across the ten-version jump the stalled sync hid, so a build would have skipped all seven and quietly shipped an app with none of this fork's behavior. Four are gone because upstream merged them (milind-soni#35 dictation language, milind-soni#36 the connected-apps prompt, milind-soni#37 the screen frame, milind-soni#67 composer drafts) or shipped its own version (milind-soni#68 became upstream's paste chips and file drop). Deleting a patch upstream now carries is the whole point of the mechanism. Three remain and are rewritten against the current code: - 020 box TTL: upstream landed boxErrorMessage and noEnv since, so the retry moves into a createBox helper instead of an inline second call. - 030 dictation: upstream took the language fallback but not the config override, so the patch is now just the {"dictation":{"locale"}} read in front of the preferences it already consults. - 060 pasted images: rewritten around upstream's new composer, whose attachment chips fold into the prompt text and so cannot carry an image. Images stay a separate strip and reach the driver as their own blocks. typecheck and the full suite pass with all three applied (103 files, 997 tests).