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Commits
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dac6cd141a |
Stream assistant text at a steady rate instead of in arrival lumps (#3612)
* Stream assistant text at a steady rate instead of in arrival lumps Assistant text arrived in lumps and was painted that way. The daemon coalesces one message per 60ms window, and that window carries however many characters the model produced in it, which swings by an order of magnitude within a turn. Painting each delta as it landed made the size of those lumps visible. Three changes: - The agent stream coalescer is now leading + trailing. The first delta after an idle window flushes synchronously instead of waiting a full window, matching the invariant TerminalOutputCoalescer already documents. The window stays at 60ms; shrinking it would raise message rate on a loop that already contends with terminal frames and relay encryption, without making the stream smoother. - The client reducer queue commits on a frame instead of an arbitrary 48ms timer, with the timer kept as a ceiling so a hidden tab still advances. - Assistant and reasoning text are revealed at a rate derived from the backlog rather than from arrival timing. Arrival changes the target, not the rate. The store keeps the full text and only the rendered slice is paced, so copy, selection, the chat outline, and scroll geometry all stay consistent with what is on screen. The leading flush means a burst's first chunk lands as its own timeline row. The projection already merges contiguous same-turn rows and clients read the projected timeline, so history is unchanged; the server tests that assert on raw rows were updated for the extra row. Measured on Expo web against a local dev daemon. Mock bursty-stream provider, 6s samples, paint-on-arrival vs paced: frames that advanced the text 55 -> 244, chars-per-frame CV 2.66 -> 1.44, gap p50 100ms -> 17ms. Real Claude Haiku agent over 52s: 84% of frames advance the text, CV 1.29, gap p50 and p95 both 17ms (one frame at 60Hz). Adds a bursty-stream mock model with seeded burst sizes, a gated browser perf spec, and docs/agent-stream-performance.md. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * Address review: safe reveal boundaries and a testable seam Two findings from the PR review. Unicode boundaries. Slicing the revealed text at an arbitrary index could strand a lone surrogate, which paints as a replacement glyph, or split an emoji ZWJ sequence so a family briefly rendered as its members. Both were visible for a frame or two mid-stream — the exact flicker the paced reveal exists to remove. The rendered cut is now pulled back off surrogate pairs, combining marks, variation selectors, skin tone modifiers, and ZWJ joins. The reveal counter stays monotonic and only the painted boundary moves, so a long cluster cannot stall the reveal. Test placement. The hook test used JSDOM, @testing-library renderHook, and monkey-patched requestAnimationFrame, all of which docs/testing.md rules out; it prescribes fixing the missing seam instead. The reveal policy is now a pure state machine in text-reveal.ts (begin/retarget/advance/ complete/visible) covered by plain unit tests with no environment, and the hook is reduced to the frame-clock binding. Rendered behavior is left to the browser spec, which no longer carries frame sampling and statistics in its body — those moved to e2e/support/helpers/stream-smoothness.ts. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * Measure total painted text, not the tail message The smoothness sampler read the length of the last assistant-message element. A real turn emits many assistant messages, so that element keeps changing identity and its length is not monotonic — handovers read as resets, and a stream that was plainly moving on screen reported almost no growth at all. Sampling the total across every assistant message fixes it. This invalidated the numbers previously recorded for the real-agent run, so the doc table is replaced with a fresh A/B taken with the corrected sampler against a Claude Haiku agent: frames that advanced the text 6% -> 87%, chars-per-frame CV 4.11 -> 1.86, gap p50 317ms -> 17ms, p95 383ms -> 17ms. The paced column also reported zero Unicode defects across a stream containing emoji, which exercises the reveal boundary clamp end to end. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * perf(agent-stream): harden paced text reveal Use standards-compliant grapheme segmentation when available and preserve full arrivals on older runtimes. Cap reveal commits at 60Hz and measure the real browser rendering path so high-refresh displays stay smooth without rendering at hardware frame rate. * Hold back trailing fragments split by arrival boundaries The reveal boundary is not the only place a grapheme gets cut. The daemon's coalescing window ends a delta wherever the window closes, so a caught-up reveal can be handed half a cluster and paint it. Measured on a mixed-script Haiku stream: five frames in ~350 ending in a single regional indicator, i.e. half a flag on screen for a frame. While the turn is streaming, a trailing fragment that cannot stand alone — a dangling high surrogate, a trailing joiner, an odd regional indicator — now waits for the rest of its cluster. Once the turn ends everything received is painted, because nothing more is coming. Complements the grapheme-boundary clamp, which handles the reveal cut; this handles the arrival cut. The same stream now measures one such frame in ~400 rather than five. The remainder is a flush boundary that coincides with the end of an assistant message, putting the two halves in different messages, which the client cannot rejoin — that one belongs in the coalescer. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 5 <noreply@anthropic.com> Co-authored-by: Mohamed Boudra <boudra.moha@gmail.com> |
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Mohamed Boudra
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1e50f895f0 |
fix(app): keep retained terminal streams attached
A hidden tab in the focused workspace must keep consuming output, but only the presented pane may claim focus or terminal geometry. |
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Mohamed Boudra
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16120ebff1 |
Make local plugins manageable and debuggable (#3446)
* feat(plugins): expose Paseo API to local plugins Plugin surfaces borrow the selected host connection while subprocess handlers receive an exclusively owned IPC session, so plugins can use normal workspace and agent operations without inventing another transport. * feat(plugins): reload global enablement safely Treat the global plugin switch as a live daemon setting and teach plugin automation to inspect it before acting. Enabling remains permission-gated because plugin backend code can access the daemon machine and client contributions execute inside the app. * feat(plugins): expose plugin logs Capture plugin stdout and stderr separately from IPC so authors can debug initialization, RPC, cleanup, and crash behavior from the app or CLI. Keep a bounded tail across lifecycle recovery while preserving structured output in the daemon log. * fix(build): order plugin dependency builds * test(plugins): align startup and CLI expectations |
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Mohamed Boudra
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04fe30a3e2 |
Improve mobile terminal input, selection, and resizing (#1607)
* Improve mobile terminal typing and selection * Address mobile terminal review feedback * Remove dead native terminal input branch * Replay bracketed paste in terminal preamble * Stop per-key terminal resize claims * Stabilize terminal resize browser test * Use tracked terminal mode for native paste * Restore terminal toolbar focus handling * Adapt native terminal to active visibility state * Stabilize native mobile terminal interactions * Add native terminal fallback boundary * test(app): expect explicit terminal resize reclaim * fix(app): stabilize terminal buffer coordinates * fix(app): restrict terminal resize ownership * fix(terminal): gate restored input modes * fix(app): recover stalled terminal WebViews * chore(app): remove obsolete terminal harnesses * fix(app): make terminal resize claims explicit * test(app): stabilize native terminal device flows * test(app): track absolute scrollback coordinates * fix(app): isolate terminal WebView streams * fix(terminal): arbitrate size ownership across clients The daemon now distinguishes explicit ownership claims from passive geometry updates. This keeps the active client authoritative while allowing its split, viewport, and keyboard changes to resize the PTY without idle clients stealing it. * test(server): make worker resize assertion portable Query the worker's authoritative terminal snapshot instead of invoking a Unix-only shell command, so the resize regression exercises the same boundary on Windows and Unix. |
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Mohamed Boudra
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5a30affd7f |
Skip unrelated required checks without losing their names (#2542)
* fix(ci): skip unrelated required checks cleanly Matrix jobs had to start no-op runners to preserve interpolated required-check names. Static named jobs let GitHub report genuine skipped conclusions while keeping those names stable. * fix(ci): gate changes to install patching script * fix(ci): route cross-package test contracts narrowly * fix(ci): keep routed contracts merge-blocking * fix(server): exclude nested test utilities from builds * fix(ci): cover app-owned native and browser domains * refactor(ci): align tests with runtime domains Own browser specs, desktop specs, and Electron-only app code by stable directories so PR routing does not depend on filename conventions. Keep desktop integration coverage inside the required desktop check. * fix(ci): keep routing and desktop suites isolated The routing regression must run before dependency installation, and desktop Vitest must not collect Playwright-owned specs. * fix(ci): isolate desktop e2e runtime * perf(test): isolate Playwright workers * perf(test): parallelize Playwright within specs * fix(test): keep Playwright file scheduling * fix(test): share dynamic Metro fixture * fix(test): preserve own-host restart fixtures * fix(ci): preserve routed contracts after rebase * Stabilize Playwright wheel-scroll assertions |
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Mohamed Boudra
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1d1132de9c |
perf(relay): reduce encrypted binary traffic overhead (#2480)
Preserve application frame identity through encryption so negotiated binary traffic avoids base64 expansion while mixed-version peers remain compatible. |
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Mohamed Boudra
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12612f6646 |
Make Git slowdowns visible in daemon metrics (#2366)
* feat(server): expose daemon Git pressure metrics Separate limiter queue wait from Git execution time and report subscription ownership so accumulating work is visible in the existing runtime log. * fix(server): collect subscriptions in agent metrics Reuse the existing agent snapshot during runtime flushes so WebSocket shutdown does not require an additional AgentManager method call. * test(server): retry transient hub cleanup |
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Mohamed Boudra
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72b67f48e3 |
Eliminate spiky terminal lag under load (#1500)
* Eliminate spiky terminal lag under load
Terminal output stuttered during heavy output and when the daemon was
busy. Two compounding causes, both confirmed by measurement:
- Every 256KB of output, the daemon dropped pending frames and re-sent a
full cell-grid snapshot (cloned across IPC, stringified to JSON) — a
10MB build did this ~40 times. The snapshot fallback is now gated on
real client backpressure (ws bufferedAmount), so a client that keeps
draining streams continuously and never pays the snapshot tax. This
also removes the periodic GC hitch the churn caused.
- Per-chunk overhead on the shared event loop: one IPC message per pty
chunk, a duplicate input-mode regex scan on the daemon main loop, a
double JSON.stringify per outbound message, and 16KB string realloc
per chunk. Output now coalesces in the worker before IPC (leading-edge
so keystrokes still echo immediately), the duplicate scan is gone, and
the client feeds xterm back-to-back instead of one render tick a frame.
Adds eventLoopDelay percentiles to ws_runtime_metrics for main-loop
stall visibility, plus a reproducible Node benchmark (no port 6767).
Measured: echo p50 7.7ms to 2.3ms; a 2MB burst now streams fully with
zero snapshots; loop-stall spikes 100-173ms to 2ms.
* Guard trace-level check against partial logger stubs
The isLevelEnabled gate added for the emit() perf fix crashed every
session test that injects a hand-rolled logger stub (10 of them omit
isLevelEnabled). Real pino loggers always provide it; optional-chaining
keeps the perf gate intact in production and no-ops on stubs.
* Make recent-output exit-summary test deterministic
The added test self-exited the child immediately after writing 3000
lines, then asserted the newest line was in the exit summary — but the
summary reads the headless xterm buffer, which parses writes
asynchronously, so a loaded CI runner saw a stale buffer (line-2707 not
line-2999). Keep the process alive and poll the parsed buffer until the
final line lands before killing, removing the race.
* Skip ConPTY-fragile worker terminal tests on Windows
The coalescing and input-mode-preamble tests assert byte-contiguous PTY
output and an exact kitty-escape round-trip. Windows ConPTY injects
repaint sequences between writes and normalizes the escape, so both time
out there while passing on Linux/macOS. Gate them with skipIf(win32),
matching the existing terminal-test convention for PTY-sensitive cases.
* Apply terminal barriers immediately when no writes are pending
A barrier op (snapshot/restore/clear) only needs the sentinel-write gate
to wait out plain writes still parsing in xterm's buffer. When none are
ungated — at mount, or right after another barrier — the sentinel cost a
wasted parse cycle, adding latency to the first snapshot/restore on the
hot first-paint path. Track ungated writes with a flag and skip the
sentinel when there's nothing to gate.
* Fix mobile startup saved-host e2e
* Unskip Windows worker terminal coverage
* Tighten worker coalescing assertion
* Reset terminal ungated writes on unmount
* Fix terminal regressions found in adversarial review
Three issues this PR's terminal changes introduced:
- Worker snapshot could duplicate coalesced output. getTerminalState
snapshotted without flushing the worker output coalescer, so a batch
spanning the snapshot point carried a revision past it and the
controller's dedup couldn't drop it — the client saw the bytes twice.
Flush before snapshotting.
- Relay clients lost backpressure protection. The snapshot fallback was
gated on bufferedAmount, which the multiplexed relay socket reports as
absent; that read as 0 ("keeping up") so a slow relay client never
caught up via a snapshot. Distinguish "no signal" (null) from 0 and
keep the unconditional byte-threshold fallback for signal-less
transports, preserving the pre-change relay behavior.
- Recent-output buffer was no longer a hard cap. A single chunk larger
than the limit was retained whole; slice its tail.
Documents the live-restore preamble gap (unreachable: no client sends
restore mode "live").
* Skip input-mode preamble test on Windows ConPTY
CI confirmed Windows ConPTY normalizes away the kitty keyboard escape
the child writes, so it never reaches the worker's input-mode tracker
and the preamble stays empty — the test times out. ConPTY can't exercise
this contract; the coalescing test (file-gated, line-oriented) stays on
all platforms, only the preamble assertion is gated to Linux/macOS.
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