perf: make streaming projection and activity appends incremental#6608

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x1xhlol wants to merge 4 commits into from
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perf: make streaming projection and activity appends incremental #6608

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5b48607
perf: make streaming projection and activity appends incremental
x1xhlol Aug 14, 2026
ef38aed
perf: index activity ids so streamed appends stop rescanning history
x1xhlol Aug 14, 2026
e310099
fix: gate the activity append fast path on reducer-produced ordering
x1xhlol Aug 14, 2026
5e23afa
Merge branch 'main' into perf/streaming-thread-projection
x1xhlol Aug 17, 2026
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211 changes: 211 additions & 0 deletions apps/server/src/orchestration/Layers/ProjectionPipeline.test.ts
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -2086,6 +2086,217 @@ it.layer(BaseTestLayer)("OrchestrationProjectionPipeline", (it) => {
}),
);

it.effect("maintains shell summary fields across message and activity streams", () =>
Effect.gen(function* () {
const projectionPipeline = yield* OrchestrationProjectionPipeline;
const eventStore = yield* OrchestrationEventStore;
const sql = yield* SqlClient.SqlClient;
const appendAndProject = (event: Parameters<typeof eventStore.append>[0]) =>
eventStore
.append(event)
.pipe(Effect.flatMap((savedEvent) => projectionPipeline.projectEvent(savedEvent)));

yield* appendAndProject({
type: "project.created",
eventId: EventId.make("evt-shell-summary-1"),
aggregateKind: "project",
aggregateId: ProjectId.make("project-shell-summary"),
occurredAt: "2026-03-01T08:00:00.000Z",
commandId: CommandId.make("cmd-shell-summary-1"),
causationEventId: null,
correlationId: CorrelationId.make("cmd-shell-summary-1"),
metadata: {},
payload: {
projectId: ProjectId.make("project-shell-summary"),
title: "Project Shell Summary",
workspaceRoot: "/tmp/project-shell-summary",
defaultModelSelection: null,
scripts: [],
createdAt: "2026-03-01T08:00:00.000Z",
updatedAt: "2026-03-01T08:00:00.000Z",
},
});

yield* appendAndProject({
type: "thread.created",
eventId: EventId.make("evt-shell-summary-2"),
aggregateKind: "thread",
aggregateId: ThreadId.make("thread-shell-summary"),
occurredAt: "2026-03-01T08:00:01.000Z",
commandId: CommandId.make("cmd-shell-summary-2"),
causationEventId: null,
correlationId: CorrelationId.make("cmd-shell-summary-2"),
metadata: {},
payload: {
threadId: ThreadId.make("thread-shell-summary"),
projectId: ProjectId.make("project-shell-summary"),
title: "Thread Shell Summary",
modelSelection: {
instanceId: ProviderInstanceId.make("codex"),
model: "gpt-5-codex",
},
runtimeMode: "approval-required",
interactionMode: "default",
branch: null,
worktreePath: null,
createdAt: "2026-03-01T08:00:01.000Z",
updatedAt: "2026-03-01T08:00:01.000Z",
},
});

const readSummary = sql<{
readonly latestUserMessageAt: string | null;
readonly pendingUserInputCount: number;
readonly updatedAt: string;
}>`
SELECT
latest_user_message_at AS "latestUserMessageAt",
pending_user_input_count AS "pendingUserInputCount",
updated_at AS "updatedAt"
FROM projection_threads
WHERE thread_id = 'thread-shell-summary'
`;

yield* appendAndProject({
type: "thread.message-sent",
eventId: EventId.make("evt-shell-summary-3"),
aggregateKind: "thread",
aggregateId: ThreadId.make("thread-shell-summary"),
occurredAt: "2026-03-01T08:00:02.000Z",
commandId: CommandId.make("cmd-shell-summary-3"),
causationEventId: null,
correlationId: CorrelationId.make("cmd-shell-summary-3"),
metadata: {},
payload: {
threadId: ThreadId.make("thread-shell-summary"),
messageId: MessageId.make("message-shell-summary-user"),
role: "user",
text: "please do the thing",
turnId: TurnId.make("turn-shell-summary-1"),
streaming: false,
createdAt: "2026-03-01T08:00:02.000Z",
updatedAt: "2026-03-01T08:00:02.000Z",
},
});

assert.deepEqual(yield* readSummary, [
{
latestUserMessageAt: "2026-03-01T08:00:02.000Z",
pendingUserInputCount: 0,
updatedAt: "2026-03-01T08:00:02.000Z",
},
]);

// Streaming assistant deltas bump updatedAt but must not disturb
// latestUserMessageAt or the pending counters.
yield* appendAndProject({
type: "thread.message-sent",
eventId: EventId.make("evt-shell-summary-4"),
aggregateKind: "thread",
aggregateId: ThreadId.make("thread-shell-summary"),
occurredAt: "2026-03-01T08:00:03.000Z",
commandId: CommandId.make("cmd-shell-summary-4"),
causationEventId: null,
correlationId: CorrelationId.make("cmd-shell-summary-4"),
metadata: {},
payload: {
threadId: ThreadId.make("thread-shell-summary"),
messageId: MessageId.make("message-shell-summary-assistant"),
role: "assistant",
text: "working on it",
turnId: TurnId.make("turn-shell-summary-1"),
streaming: true,
createdAt: "2026-03-01T08:00:03.000Z",
updatedAt: "2026-03-01T08:00:03.000Z",
},
});

assert.deepEqual(yield* readSummary, [
{
latestUserMessageAt: "2026-03-01T08:00:02.000Z",
pendingUserInputCount: 0,
updatedAt: "2026-03-01T08:00:03.000Z",
},
]);

// Ordinary tool activities bump updatedAt without touching the
// user-input counter; user-input lifecycle activities update it.
yield* appendAndProject({
type: "thread.activity-appended",
eventId: EventId.make("evt-shell-summary-5"),
aggregateKind: "thread",
aggregateId: ThreadId.make("thread-shell-summary"),
occurredAt: "2026-03-01T08:00:04.000Z",
commandId: CommandId.make("cmd-shell-summary-5"),
causationEventId: null,
correlationId: CorrelationId.make("cmd-shell-summary-5"),
metadata: {},
payload: {
threadId: ThreadId.make("thread-shell-summary"),
activity: {
id: EventId.make("activity-shell-summary-command"),
tone: "tool",
kind: "command",
summary: "Ran a command",
payload: {},
turnId: TurnId.make("turn-shell-summary-1"),
createdAt: "2026-03-01T08:00:04.000Z",
},
},
});

assert.deepEqual(yield* readSummary, [
{
latestUserMessageAt: "2026-03-01T08:00:02.000Z",
pendingUserInputCount: 0,
updatedAt: "2026-03-01T08:00:04.000Z",
},
]);

yield* appendAndProject({
type: "thread.activity-appended",
eventId: EventId.make("evt-shell-summary-6"),
aggregateKind: "thread",
aggregateId: ThreadId.make("thread-shell-summary"),
occurredAt: "2026-03-01T08:00:05.000Z",
commandId: CommandId.make("cmd-shell-summary-6"),
causationEventId: null,
correlationId: CorrelationId.make("cmd-shell-summary-6"),
metadata: {},
payload: {
threadId: ThreadId.make("thread-shell-summary"),
activity: {
id: EventId.make("activity-shell-summary-user-input"),
tone: "info",
kind: "user-input.requested",
summary: "User input requested",
payload: {
requestId: "user-input-request-shell-summary-1",
questions: [
{
id: "confirm",
header: "Confirm",
question: "Proceed?",
options: [{ label: "yes", description: "Proceed" }],
},
],
},
turnId: TurnId.make("turn-shell-summary-1"),
createdAt: "2026-03-01T08:00:05.000Z",
},
},
});

assert.deepEqual(yield* readSummary, [
{
latestUserMessageAt: "2026-03-01T08:00:02.000Z",
pendingUserInputCount: 1,
updatedAt: "2026-03-01T08:00:05.000Z",
},
]);
}),
);

it.effect("ignores non-stale provider approval response failures", () =>
Effect.gen(function* () {
const projectionPipeline = yield* OrchestrationProjectionPipeline;
Expand Down
57 changes: 55 additions & 2 deletions apps/server/src/orchestration/Layers/ProjectionPipeline.ts
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -130,6 +130,17 @@ function isStalePendingApprovalFailureDetail(detail: string | null): boolean {
);
}

function activityAffectsShellSummary(kind: string): boolean {
return (
kind === "user-input.requested" ||
kind === "user-input.resolved" ||
kind === "provider.user-input.respond.failed" ||
kind === "approval.requested" ||
kind === "approval.resolved" ||
kind === "provider.approval.respond.failed"
);
}

function derivePendingUserInputCountFromActivities(
activities: ReadonlyArray<ProjectionThreadActivity>,
): number {
Expand DownExpand Up@@ -850,9 +861,51 @@ const makeOrchestrationProjectionPipeline = Effect.fn("makeOrchestrationProjecti
return;
}

case "thread.message-sent":
// Message events cannot change any derived summary field except
// latestUserMessageAt, which is a monotonic maximum that folds in
// directly — the full refresh would re-read every message, plan,
// activity, and approval on each streaming assistant delta.
case "thread.message-sent": {
const existingRow = yield* projectionThreadRepository.getById({
threadId: event.payload.threadId,
});
if (Option.isNone(existingRow)) {
return;
}
const previousLatest = existingRow.value.latestUserMessageAt;
yield* projectionThreadRepository.upsert({
...existingRow.value,
updatedAt: event.occurredAt,
latestUserMessageAt:
event.payload.role === "user" &&
(previousLatest === null || event.payload.createdAt > previousLatest)
? event.payload.createdAt
: previousLatest,
});
return;
}

// Only approval and user-input lifecycle activities feed the pending
// counters; the high-frequency progress/tool activities just bump
// updatedAt.
case "thread.activity-appended": {
const existingRow = yield* projectionThreadRepository.getById({
threadId: event.payload.threadId,
});
if (Option.isNone(existingRow)) {
return;
}
yield* projectionThreadRepository.upsert({
...existingRow.value,
updatedAt: event.occurredAt,
});
if (activityAffectsShellSummary(event.payload.activity.kind)) {
yield* refreshThreadShellSummary(event.payload.threadId);
}
return;
}

case "thread.proposed-plan-upserted":
case "thread.activity-appended":
case "thread.approval-response-requested":
case "thread.user-input-response-requested": {
const existingRow = yield* projectionThreadRepository.getById({
Expand Down
Loading
Loading
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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perf: make streaming projection and activity appends incremental#6608

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 Closed

x1xhlol
wants to merge
4
commits into

from


+479

−2

 Closed


perf: make streaming projection and activity appends incremental
#6608
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5b48607

perf: make streaming projection and activity appends incremental


x1xhlol Aug 14, 2026
ef38aed

perf: index activity ids so streamed appends stop rescanning history


x1xhlol Aug 14, 2026
e310099

fix: gate the activity append fast path on reducer-produced ordering


x1xhlol Aug 14, 2026
5e23afa

Merge branch 'main' into perf/streaming-thread-projection


x1xhlol Aug 17, 2026

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211 changes: 211 additions & 0 deletions
apps/server/src/orchestration/Layers/ProjectionPipeline.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -2086,6 +2086,217 @@ it.layer(BaseTestLayer)("OrchestrationProjectionPipeline", (it) => {
 }),
 );

 it.effect("maintains shell summary fields across message and activity streams", () =>
 Effect.gen(function* () {
 const projectionPipeline = yield* OrchestrationProjectionPipeline;
 const eventStore = yield* OrchestrationEventStore;
 const sql = yield* SqlClient.SqlClient;
 const appendAndProject = (event: Parameters<typeof eventStore.append>[0]) =>
 eventStore
 .append(event)
 .pipe(Effect.flatMap((savedEvent) => projectionPipeline.projectEvent(savedEvent)));

 yield* appendAndProject({
 type: "project.created",
 eventId: EventId.make("evt-shell-summary-1"),
 aggregateKind: "project",
 aggregateId: ProjectId.make("project-shell-summary"),
 occurredAt: "2026-03-01T08:00:00.000Z",
 commandId: CommandId.make("cmd-shell-summary-1"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-1"),
 metadata: {},
 payload: {
 projectId: ProjectId.make("project-shell-summary"),
 title: "Project Shell Summary",
 workspaceRoot: "/tmp/project-shell-summary",
 defaultModelSelection: null,
 scripts: [],
 createdAt: "2026-03-01T08:00:00.000Z",
 updatedAt: "2026-03-01T08:00:00.000Z",
 },
 });

 yield* appendAndProject({
 type: "thread.created",
 eventId: EventId.make("evt-shell-summary-2"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:01.000Z",
 commandId: CommandId.make("cmd-shell-summary-2"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-2"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 projectId: ProjectId.make("project-shell-summary"),
 title: "Thread Shell Summary",
 modelSelection: {
 instanceId: ProviderInstanceId.make("codex"),
 model: "gpt-5-codex",
 },
 runtimeMode: "approval-required",
 interactionMode: "default",
 branch: null,
 worktreePath: null,
 createdAt: "2026-03-01T08:00:01.000Z",
 updatedAt: "2026-03-01T08:00:01.000Z",
 },
 });

 const readSummary = sql<{
 readonly latestUserMessageAt: string | null;
 readonly pendingUserInputCount: number;
 readonly updatedAt: string;
 }>`
 SELECT
 latest_user_message_at AS "latestUserMessageAt",
 pending_user_input_count AS "pendingUserInputCount",
 updated_at AS "updatedAt"
 FROM projection_threads
 WHERE thread_id = 'thread-shell-summary'
 `;

 yield* appendAndProject({
 type: "thread.message-sent",
 eventId: EventId.make("evt-shell-summary-3"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:02.000Z",
 commandId: CommandId.make("cmd-shell-summary-3"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-3"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 messageId: MessageId.make("message-shell-summary-user"),
 role: "user",
 text: "please do the thing",
 turnId: TurnId.make("turn-shell-summary-1"),
 streaming: false,
 createdAt: "2026-03-01T08:00:02.000Z",
 updatedAt: "2026-03-01T08:00:02.000Z",
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:02.000Z",
 },
 ]);

 // Streaming assistant deltas bump updatedAt but must not disturb
 // latestUserMessageAt or the pending counters.
 yield* appendAndProject({
 type: "thread.message-sent",
 eventId: EventId.make("evt-shell-summary-4"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:03.000Z",
 commandId: CommandId.make("cmd-shell-summary-4"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-4"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 messageId: MessageId.make("message-shell-summary-assistant"),
 role: "assistant",
 text: "working on it",
 turnId: TurnId.make("turn-shell-summary-1"),
 streaming: true,
 createdAt: "2026-03-01T08:00:03.000Z",
 updatedAt: "2026-03-01T08:00:03.000Z",
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:03.000Z",
 },
 ]);

 // Ordinary tool activities bump updatedAt without touching the
 // user-input counter; user-input lifecycle activities update it.
 yield* appendAndProject({
 type: "thread.activity-appended",
 eventId: EventId.make("evt-shell-summary-5"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:04.000Z",
 commandId: CommandId.make("cmd-shell-summary-5"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-5"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 activity: {
 id: EventId.make("activity-shell-summary-command"),
 tone: "tool",
 kind: "command",
 summary: "Ran a command",
 payload: {},
 turnId: TurnId.make("turn-shell-summary-1"),
 createdAt: "2026-03-01T08:00:04.000Z",
 },
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:04.000Z",
 },
 ]);

 yield* appendAndProject({
 type: "thread.activity-appended",
 eventId: EventId.make("evt-shell-summary-6"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:05.000Z",
 commandId: CommandId.make("cmd-shell-summary-6"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-6"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 activity: {
 id: EventId.make("activity-shell-summary-user-input"),
 tone: "info",
 kind: "user-input.requested",
 summary: "User input requested",
 payload: {
 requestId: "user-input-request-shell-summary-1",
 questions: [
 {
 id: "confirm",
 header: "Confirm",
 question: "Proceed?",
 options: [{ label: "yes", description: "Proceed" }],
 },
 ],
 },
 turnId: TurnId.make("turn-shell-summary-1"),
 createdAt: "2026-03-01T08:00:05.000Z",
 },
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 1,
 updatedAt: "2026-03-01T08:00:05.000Z",
 },
 ]);
 }),
 );

 it.effect("ignores non-stale provider approval response failures", () =>
 Effect.gen(function* () {
 const projectionPipeline = yield* OrchestrationProjectionPipeline;
Expand Down

57 changes: 55 additions & 2 deletions
apps/server/src/orchestration/Layers/ProjectionPipeline.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -130,6 +130,17 @@ function isStalePendingApprovalFailureDetail(detail: string | null): boolean {
 );
}

function activityAffectsShellSummary(kind: string): boolean {
 return (
 kind === "user-input.requested" ||
 kind === "user-input.resolved" ||
 kind === "provider.user-input.respond.failed" ||
 kind === "approval.requested" ||
 kind === "approval.resolved" ||
 kind === "provider.approval.respond.failed"
 );
}

function derivePendingUserInputCountFromActivities(
 activities: ReadonlyArray<ProjectionThreadActivity>,
): number {
Expand DownExpand Up@@ -850,9 +861,51 @@ const makeOrchestrationProjectionPipeline = Effect.fn("makeOrchestrationProjecti
 return;
 }

 case "thread.message-sent":
 // Message events cannot change any derived summary field except
 // latestUserMessageAt, which is a monotonic maximum that folds in
 // directly — the full refresh would re-read every message, plan,
 // activity, and approval on each streaming assistant delta.
 case "thread.message-sent": {
 const existingRow = yield* projectionThreadRepository.getById({
 threadId: event.payload.threadId,
 });
 if (Option.isNone(existingRow)) {
 return;
 }
 const previousLatest = existingRow.value.latestUserMessageAt;
 yield* projectionThreadRepository.upsert({
 ...existingRow.value,
 updatedAt: event.occurredAt,
 latestUserMessageAt:
 event.payload.role === "user" &&
 (previousLatest === null || event.payload.createdAt > previousLatest)
 ? event.payload.createdAt
 : previousLatest,
 });
 return;
 }

 // Only approval and user-input lifecycle activities feed the pending
 // counters; the high-frequency progress/tool activities just bump
 // updatedAt.
 case "thread.activity-appended": {
 const existingRow = yield* projectionThreadRepository.getById({
 threadId: event.payload.threadId,
 });
 if (Option.isNone(existingRow)) {
 return;
 }
 yield* projectionThreadRepository.upsert({
 ...existingRow.value,
 updatedAt: event.occurredAt,
 });
 if (activityAffectsShellSummary(event.payload.activity.kind)) {
 yield* refreshThreadShellSummary(event.payload.threadId);
 }
 return;
 }

 case "thread.proposed-plan-upserted":
 case "thread.activity-appended":
 case "thread.approval-response-requested":
 case "thread.user-input-response-requested": {
 const existingRow = yield* projectionThreadRepository.getById({
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
perf: make streaming projection and activity appends incremental#6608

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Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

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privacy statement. We’ll occasionally send you account related emails.

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 Closed

x1xhlol
wants to merge
4
commits into

from


+479

−2

 Closed


perf: make streaming projection and activity appends incremental
#6608
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5b48607

perf: make streaming projection and activity appends incremental


x1xhlol Aug 14, 2026
ef38aed

perf: index activity ids so streamed appends stop rescanning history


x1xhlol Aug 14, 2026
e310099

fix: gate the activity append fast path on reducer-produced ordering


x1xhlol Aug 14, 2026
5e23afa

Merge branch 'main' into perf/streaming-thread-projection


x1xhlol Aug 17, 2026

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211 changes: 211 additions & 0 deletions
apps/server/src/orchestration/Layers/ProjectionPipeline.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -2086,6 +2086,217 @@ it.layer(BaseTestLayer)("OrchestrationProjectionPipeline", (it) => {
 }),
 );

 it.effect("maintains shell summary fields across message and activity streams", () =>
 Effect.gen(function* () {
 const projectionPipeline = yield* OrchestrationProjectionPipeline;
 const eventStore = yield* OrchestrationEventStore;
 const sql = yield* SqlClient.SqlClient;
 const appendAndProject = (event: Parameters<typeof eventStore.append>[0]) =>
 eventStore
 .append(event)
 .pipe(Effect.flatMap((savedEvent) => projectionPipeline.projectEvent(savedEvent)));

 yield* appendAndProject({
 type: "project.created",
 eventId: EventId.make("evt-shell-summary-1"),
 aggregateKind: "project",
 aggregateId: ProjectId.make("project-shell-summary"),
 occurredAt: "2026-03-01T08:00:00.000Z",
 commandId: CommandId.make("cmd-shell-summary-1"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-1"),
 metadata: {},
 payload: {
 projectId: ProjectId.make("project-shell-summary"),
 title: "Project Shell Summary",
 workspaceRoot: "/tmp/project-shell-summary",
 defaultModelSelection: null,
 scripts: [],
 createdAt: "2026-03-01T08:00:00.000Z",
 updatedAt: "2026-03-01T08:00:00.000Z",
 },
 });

 yield* appendAndProject({
 type: "thread.created",
 eventId: EventId.make("evt-shell-summary-2"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:01.000Z",
 commandId: CommandId.make("cmd-shell-summary-2"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-2"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 projectId: ProjectId.make("project-shell-summary"),
 title: "Thread Shell Summary",
 modelSelection: {
 instanceId: ProviderInstanceId.make("codex"),
 model: "gpt-5-codex",
 },
 runtimeMode: "approval-required",
 interactionMode: "default",
 branch: null,
 worktreePath: null,
 createdAt: "2026-03-01T08:00:01.000Z",
 updatedAt: "2026-03-01T08:00:01.000Z",
 },
 });

 const readSummary = sql<{
 readonly latestUserMessageAt: string | null;
 readonly pendingUserInputCount: number;
 readonly updatedAt: string;
 }>`
 SELECT
 latest_user_message_at AS "latestUserMessageAt",
 pending_user_input_count AS "pendingUserInputCount",
 updated_at AS "updatedAt"
 FROM projection_threads
 WHERE thread_id = 'thread-shell-summary'
 `;

 yield* appendAndProject({
 type: "thread.message-sent",
 eventId: EventId.make("evt-shell-summary-3"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:02.000Z",
 commandId: CommandId.make("cmd-shell-summary-3"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-3"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 messageId: MessageId.make("message-shell-summary-user"),
 role: "user",
 text: "please do the thing",
 turnId: TurnId.make("turn-shell-summary-1"),
 streaming: false,
 createdAt: "2026-03-01T08:00:02.000Z",
 updatedAt: "2026-03-01T08:00:02.000Z",
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:02.000Z",
 },
 ]);

 // Streaming assistant deltas bump updatedAt but must not disturb
 // latestUserMessageAt or the pending counters.
 yield* appendAndProject({
 type: "thread.message-sent",
 eventId: EventId.make("evt-shell-summary-4"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:03.000Z",
 commandId: CommandId.make("cmd-shell-summary-4"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-4"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 messageId: MessageId.make("message-shell-summary-assistant"),
 role: "assistant",
 text: "working on it",
 turnId: TurnId.make("turn-shell-summary-1"),
 streaming: true,
 createdAt: "2026-03-01T08:00:03.000Z",
 updatedAt: "2026-03-01T08:00:03.000Z",
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:03.000Z",
 },
 ]);

 // Ordinary tool activities bump updatedAt without touching the
 // user-input counter; user-input lifecycle activities update it.
 yield* appendAndProject({
 type: "thread.activity-appended",
 eventId: EventId.make("evt-shell-summary-5"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:04.000Z",
 commandId: CommandId.make("cmd-shell-summary-5"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-5"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 activity: {
 id: EventId.make("activity-shell-summary-command"),
 tone: "tool",
 kind: "command",
 summary: "Ran a command",
 payload: {},
 turnId: TurnId.make("turn-shell-summary-1"),
 createdAt: "2026-03-01T08:00:04.000Z",
 },
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:04.000Z",
 },
 ]);

 yield* appendAndProject({
 type: "thread.activity-appended",
 eventId: EventId.make("evt-shell-summary-6"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:05.000Z",
 commandId: CommandId.make("cmd-shell-summary-6"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-6"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 activity: {
 id: EventId.make("activity-shell-summary-user-input"),
 tone: "info",
 kind: "user-input.requested",
 summary: "User input requested",
 payload: {
 requestId: "user-input-request-shell-summary-1",
 questions: [
 {
 id: "confirm",
 header: "Confirm",
 question: "Proceed?",
 options: [{ label: "yes", description: "Proceed" }],
 },
 ],
 },
 turnId: TurnId.make("turn-shell-summary-1"),
 createdAt: "2026-03-01T08:00:05.000Z",
 },
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 1,
 updatedAt: "2026-03-01T08:00:05.000Z",
 },
 ]);
 }),
 );

 it.effect("ignores non-stale provider approval response failures", () =>
 Effect.gen(function* () {
 const projectionPipeline = yield* OrchestrationProjectionPipeline;
Expand Down

57 changes: 55 additions & 2 deletions
apps/server/src/orchestration/Layers/ProjectionPipeline.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -130,6 +130,17 @@ function isStalePendingApprovalFailureDetail(detail: string | null): boolean {
 );
}

function activityAffectsShellSummary(kind: string): boolean {
 return (
 kind === "user-input.requested" ||
 kind === "user-input.resolved" ||
 kind === "provider.user-input.respond.failed" ||
 kind === "approval.requested" ||
 kind === "approval.resolved" ||
 kind === "provider.approval.respond.failed"
 );
}

function derivePendingUserInputCountFromActivities(
 activities: ReadonlyArray<ProjectionThreadActivity>,
): number {
Expand DownExpand Up@@ -850,9 +861,51 @@ const makeOrchestrationProjectionPipeline = Effect.fn("makeOrchestrationProjecti
 return;
 }

 case "thread.message-sent":
 // Message events cannot change any derived summary field except
 // latestUserMessageAt, which is a monotonic maximum that folds in
 // directly — the full refresh would re-read every message, plan,
 // activity, and approval on each streaming assistant delta.
 case "thread.message-sent": {
 const existingRow = yield* projectionThreadRepository.getById({
 threadId: event.payload.threadId,
 });
 if (Option.isNone(existingRow)) {
 return;
 }
 const previousLatest = existingRow.value.latestUserMessageAt;
 yield* projectionThreadRepository.upsert({
 ...existingRow.value,
 updatedAt: event.occurredAt,
 latestUserMessageAt:
 event.payload.role === "user" &&
 (previousLatest === null || event.payload.createdAt > previousLatest)
 ? event.payload.createdAt
 : previousLatest,
 });
 return;
 }

 // Only approval and user-input lifecycle activities feed the pending
 // counters; the high-frequency progress/tool activities just bump
 // updatedAt.
 case "thread.activity-appended": {
 const existingRow = yield* projectionThreadRepository.getById({
 threadId: event.payload.threadId,
 });
 if (Option.isNone(existingRow)) {
 return;
 }
 yield* projectionThreadRepository.upsert({
 ...existingRow.value,
 updatedAt: event.occurredAt,
 });
 if (activityAffectsShellSummary(event.payload.activity.kind)) {
 yield* refreshThreadShellSummary(event.payload.threadId);
 }
 return;
 }

 case "thread.proposed-plan-upserted":
 case "thread.activity-appended":
 case "thread.approval-response-requested":
 case "thread.user-input-response-requested": {
 const existingRow = yield* projectionThreadRepository.getById({
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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perf: make streaming projection and activity appends incremental
#6608
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5b48607

perf: make streaming projection and activity appends incremental


x1xhlol Aug 14, 2026
ef38aed

perf: index activity ids so streamed appends stop rescanning history


x1xhlol Aug 14, 2026
e310099

fix: gate the activity append fast path on reducer-produced ordering


x1xhlol Aug 14, 2026
5e23afa

Merge branch 'main' into perf/streaming-thread-projection


x1xhlol Aug 17, 2026

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211 changes: 211 additions & 0 deletions
apps/server/src/orchestration/Layers/ProjectionPipeline.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -2086,6 +2086,217 @@ it.layer(BaseTestLayer)("OrchestrationProjectionPipeline", (it) => {
 }),
 );

 it.effect("maintains shell summary fields across message and activity streams", () =>
 Effect.gen(function* () {
 const projectionPipeline = yield* OrchestrationProjectionPipeline;
 const eventStore = yield* OrchestrationEventStore;
 const sql = yield* SqlClient.SqlClient;
 const appendAndProject = (event: Parameters<typeof eventStore.append>[0]) =>
 eventStore
 .append(event)
 .pipe(Effect.flatMap((savedEvent) => projectionPipeline.projectEvent(savedEvent)));

 yield* appendAndProject({
 type: "project.created",
 eventId: EventId.make("evt-shell-summary-1"),
 aggregateKind: "project",
 aggregateId: ProjectId.make("project-shell-summary"),
 occurredAt: "2026-03-01T08:00:00.000Z",
 commandId: CommandId.make("cmd-shell-summary-1"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-1"),
 metadata: {},
 payload: {
 projectId: ProjectId.make("project-shell-summary"),
 title: "Project Shell Summary",
 workspaceRoot: "/tmp/project-shell-summary",
 defaultModelSelection: null,
 scripts: [],
 createdAt: "2026-03-01T08:00:00.000Z",
 updatedAt: "2026-03-01T08:00:00.000Z",
 },
 });

 yield* appendAndProject({
 type: "thread.created",
 eventId: EventId.make("evt-shell-summary-2"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:01.000Z",
 commandId: CommandId.make("cmd-shell-summary-2"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-2"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 projectId: ProjectId.make("project-shell-summary"),
 title: "Thread Shell Summary",
 modelSelection: {
 instanceId: ProviderInstanceId.make("codex"),
 model: "gpt-5-codex",
 },
 runtimeMode: "approval-required",
 interactionMode: "default",
 branch: null,
 worktreePath: null,
 createdAt: "2026-03-01T08:00:01.000Z",
 updatedAt: "2026-03-01T08:00:01.000Z",
 },
 });

 const readSummary = sql<{
 readonly latestUserMessageAt: string | null;
 readonly pendingUserInputCount: number;
 readonly updatedAt: string;
 }>`
 SELECT
 latest_user_message_at AS "latestUserMessageAt",
 pending_user_input_count AS "pendingUserInputCount",
 updated_at AS "updatedAt"
 FROM projection_threads
 WHERE thread_id = 'thread-shell-summary'
 `;

 yield* appendAndProject({
 type: "thread.message-sent",
 eventId: EventId.make("evt-shell-summary-3"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:02.000Z",
 commandId: CommandId.make("cmd-shell-summary-3"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-3"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 messageId: MessageId.make("message-shell-summary-user"),
 role: "user",
 text: "please do the thing",
 turnId: TurnId.make("turn-shell-summary-1"),
 streaming: false,
 createdAt: "2026-03-01T08:00:02.000Z",
 updatedAt: "2026-03-01T08:00:02.000Z",
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:02.000Z",
 },
 ]);

 // Streaming assistant deltas bump updatedAt but must not disturb
 // latestUserMessageAt or the pending counters.
 yield* appendAndProject({
 type: "thread.message-sent",
 eventId: EventId.make("evt-shell-summary-4"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:03.000Z",
 commandId: CommandId.make("cmd-shell-summary-4"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-4"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 messageId: MessageId.make("message-shell-summary-assistant"),
 role: "assistant",
 text: "working on it",
 turnId: TurnId.make("turn-shell-summary-1"),
 streaming: true,
 createdAt: "2026-03-01T08:00:03.000Z",
 updatedAt: "2026-03-01T08:00:03.000Z",
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:03.000Z",
 },
 ]);

 // Ordinary tool activities bump updatedAt without touching the
 // user-input counter; user-input lifecycle activities update it.
 yield* appendAndProject({
 type: "thread.activity-appended",
 eventId: EventId.make("evt-shell-summary-5"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:04.000Z",
 commandId: CommandId.make("cmd-shell-summary-5"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-5"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 activity: {
 id: EventId.make("activity-shell-summary-command"),
 tone: "tool",
 kind: "command",
 summary: "Ran a command",
 payload: {},
 turnId: TurnId.make("turn-shell-summary-1"),
 createdAt: "2026-03-01T08:00:04.000Z",
 },
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:04.000Z",
 },
 ]);

 yield* appendAndProject({
 type: "thread.activity-appended",
 eventId: EventId.make("evt-shell-summary-6"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:05.000Z",
 commandId: CommandId.make("cmd-shell-summary-6"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-6"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 activity: {
 id: EventId.make("activity-shell-summary-user-input"),
 tone: "info",
 kind: "user-input.requested",
 summary: "User input requested",
 payload: {
 requestId: "user-input-request-shell-summary-1",
 questions: [
 {
 id: "confirm",
 header: "Confirm",
 question: "Proceed?",
 options: [{ label: "yes", description: "Proceed" }],
 },
 ],
 },
 turnId: TurnId.make("turn-shell-summary-1"),
 createdAt: "2026-03-01T08:00:05.000Z",
 },
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 1,
 updatedAt: "2026-03-01T08:00:05.000Z",
 },
 ]);
 }),
 );

 it.effect("ignores non-stale provider approval response failures", () =>
 Effect.gen(function* () {
 const projectionPipeline = yield* OrchestrationProjectionPipeline;
Expand Down

57 changes: 55 additions & 2 deletions
apps/server/src/orchestration/Layers/ProjectionPipeline.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -130,6 +130,17 @@ function isStalePendingApprovalFailureDetail(detail: string | null): boolean {
 );
}

function activityAffectsShellSummary(kind: string): boolean {
 return (
 kind === "user-input.requested" ||
 kind === "user-input.resolved" ||
 kind === "provider.user-input.respond.failed" ||
 kind === "approval.requested" ||
 kind === "approval.resolved" ||
 kind === "provider.approval.respond.failed"
 );
}

function derivePendingUserInputCountFromActivities(
 activities: ReadonlyArray<ProjectionThreadActivity>,
): number {
Expand DownExpand Up@@ -850,9 +861,51 @@ const makeOrchestrationProjectionPipeline = Effect.fn("makeOrchestrationProjecti
 return;
 }

 case "thread.message-sent":
 // Message events cannot change any derived summary field except
 // latestUserMessageAt, which is a monotonic maximum that folds in
 // directly — the full refresh would re-read every message, plan,
 // activity, and approval on each streaming assistant delta.
 case "thread.message-sent": {
 const existingRow = yield* projectionThreadRepository.getById({
 threadId: event.payload.threadId,
 });
 if (Option.isNone(existingRow)) {
 return;
 }
 const previousLatest = existingRow.value.latestUserMessageAt;
 yield* projectionThreadRepository.upsert({
 ...existingRow.value,
 updatedAt: event.occurredAt,
 latestUserMessageAt:
 event.payload.role === "user" &&
 (previousLatest === null || event.payload.createdAt > previousLatest)
 ? event.payload.createdAt
 : previousLatest,
 });
 return;
 }

 // Only approval and user-input lifecycle activities feed the pending
 // counters; the high-frequency progress/tool activities just bump
 // updatedAt.
 case "thread.activity-appended": {
 const existingRow = yield* projectionThreadRepository.getById({
 threadId: event.payload.threadId,
 });
 if (Option.isNone(existingRow)) {
 return;
 }
 yield* projectionThreadRepository.upsert({
 ...existingRow.value,
 updatedAt: event.occurredAt,
 });
 if (activityAffectsShellSummary(event.payload.activity.kind)) {
 yield* refreshThreadShellSummary(event.payload.threadId);
 }
 return;
 }

 case "thread.proposed-plan-upserted":
 case "thread.activity-appended":
 case "thread.approval-response-requested":
 case "thread.user-input-response-requested": {
 const existingRow = yield* projectionThreadRepository.getById({
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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perf: make streaming projection and activity appends incremental
#6608
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5b48607

perf: make streaming projection and activity appends incremental


x1xhlol Aug 14, 2026
ef38aed

perf: index activity ids so streamed appends stop rescanning history


x1xhlol Aug 14, 2026
e310099

fix: gate the activity append fast path on reducer-produced ordering


x1xhlol Aug 14, 2026
5e23afa

Merge branch 'main' into perf/streaming-thread-projection


x1xhlol Aug 17, 2026

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211 changes: 211 additions & 0 deletions
apps/server/src/orchestration/Layers/ProjectionPipeline.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -2086,6 +2086,217 @@ it.layer(BaseTestLayer)("OrchestrationProjectionPipeline", (it) => {
 }),
 );

 it.effect("maintains shell summary fields across message and activity streams", () =>
 Effect.gen(function* () {
 const projectionPipeline = yield* OrchestrationProjectionPipeline;
 const eventStore = yield* OrchestrationEventStore;
 const sql = yield* SqlClient.SqlClient;
 const appendAndProject = (event: Parameters<typeof eventStore.append>[0]) =>
 eventStore
 .append(event)
 .pipe(Effect.flatMap((savedEvent) => projectionPipeline.projectEvent(savedEvent)));

 yield* appendAndProject({
 type: "project.created",
 eventId: EventId.make("evt-shell-summary-1"),
 aggregateKind: "project",
 aggregateId: ProjectId.make("project-shell-summary"),
 occurredAt: "2026-03-01T08:00:00.000Z",
 commandId: CommandId.make("cmd-shell-summary-1"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-1"),
 metadata: {},
 payload: {
 projectId: ProjectId.make("project-shell-summary"),
 title: "Project Shell Summary",
 workspaceRoot: "/tmp/project-shell-summary",
 defaultModelSelection: null,
 scripts: [],
 createdAt: "2026-03-01T08:00:00.000Z",
 updatedAt: "2026-03-01T08:00:00.000Z",
 },
 });

 yield* appendAndProject({
 type: "thread.created",
 eventId: EventId.make("evt-shell-summary-2"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:01.000Z",
 commandId: CommandId.make("cmd-shell-summary-2"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-2"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 projectId: ProjectId.make("project-shell-summary"),
 title: "Thread Shell Summary",
 modelSelection: {
 instanceId: ProviderInstanceId.make("codex"),
 model: "gpt-5-codex",
 },
 runtimeMode: "approval-required",
 interactionMode: "default",
 branch: null,
 worktreePath: null,
 createdAt: "2026-03-01T08:00:01.000Z",
 updatedAt: "2026-03-01T08:00:01.000Z",
 },
 });

 const readSummary = sql<{
 readonly latestUserMessageAt: string | null;
 readonly pendingUserInputCount: number;
 readonly updatedAt: string;
 }>`
 SELECT
 latest_user_message_at AS "latestUserMessageAt",
 pending_user_input_count AS "pendingUserInputCount",
 updated_at AS "updatedAt"
 FROM projection_threads
 WHERE thread_id = 'thread-shell-summary'
 `;

 yield* appendAndProject({
 type: "thread.message-sent",
 eventId: EventId.make("evt-shell-summary-3"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:02.000Z",
 commandId: CommandId.make("cmd-shell-summary-3"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-3"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 messageId: MessageId.make("message-shell-summary-user"),
 role: "user",
 text: "please do the thing",
 turnId: TurnId.make("turn-shell-summary-1"),
 streaming: false,
 createdAt: "2026-03-01T08:00:02.000Z",
 updatedAt: "2026-03-01T08:00:02.000Z",
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:02.000Z",
 },
 ]);

 // Streaming assistant deltas bump updatedAt but must not disturb
 // latestUserMessageAt or the pending counters.
 yield* appendAndProject({
 type: "thread.message-sent",
 eventId: EventId.make("evt-shell-summary-4"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:03.000Z",
 commandId: CommandId.make("cmd-shell-summary-4"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-4"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 messageId: MessageId.make("message-shell-summary-assistant"),
 role: "assistant",
 text: "working on it",
 turnId: TurnId.make("turn-shell-summary-1"),
 streaming: true,
 createdAt: "2026-03-01T08:00:03.000Z",
 updatedAt: "2026-03-01T08:00:03.000Z",
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:03.000Z",
 },
 ]);

 // Ordinary tool activities bump updatedAt without touching the
 // user-input counter; user-input lifecycle activities update it.
 yield* appendAndProject({
 type: "thread.activity-appended",
 eventId: EventId.make("evt-shell-summary-5"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:04.000Z",
 commandId: CommandId.make("cmd-shell-summary-5"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-5"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 activity: {
 id: EventId.make("activity-shell-summary-command"),
 tone: "tool",
 kind: "command",
 summary: "Ran a command",
 payload: {},
 turnId: TurnId.make("turn-shell-summary-1"),
 createdAt: "2026-03-01T08:00:04.000Z",
 },
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:04.000Z",
 },
 ]);

 yield* appendAndProject({
 type: "thread.activity-appended",
 eventId: EventId.make("evt-shell-summary-6"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:05.000Z",
 commandId: CommandId.make("cmd-shell-summary-6"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-6"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 activity: {
 id: EventId.make("activity-shell-summary-user-input"),
 tone: "info",
 kind: "user-input.requested",
 summary: "User input requested",
 payload: {
 requestId: "user-input-request-shell-summary-1",
 questions: [
 {
 id: "confirm",
 header: "Confirm",
 question: "Proceed?",
 options: [{ label: "yes", description: "Proceed" }],
 },
 ],
 },
 turnId: TurnId.make("turn-shell-summary-1"),
 createdAt: "2026-03-01T08:00:05.000Z",
 },
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 1,
 updatedAt: "2026-03-01T08:00:05.000Z",
 },
 ]);
 }),
 );

 it.effect("ignores non-stale provider approval response failures", () =>
 Effect.gen(function* () {
 const projectionPipeline = yield* OrchestrationProjectionPipeline;
Expand Down

57 changes: 55 additions & 2 deletions
apps/server/src/orchestration/Layers/ProjectionPipeline.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -130,6 +130,17 @@ function isStalePendingApprovalFailureDetail(detail: string | null): boolean {
 );
}

function activityAffectsShellSummary(kind: string): boolean {
 return (
 kind === "user-input.requested" ||
 kind === "user-input.resolved" ||
 kind === "provider.user-input.respond.failed" ||
 kind === "approval.requested" ||
 kind === "approval.resolved" ||
 kind === "provider.approval.respond.failed"
 );
}

function derivePendingUserInputCountFromActivities(
 activities: ReadonlyArray<ProjectionThreadActivity>,
): number {
Expand DownExpand Up@@ -850,9 +861,51 @@ const makeOrchestrationProjectionPipeline = Effect.fn("makeOrchestrationProjecti
 return;
 }

 case "thread.message-sent":
 // Message events cannot change any derived summary field except
 // latestUserMessageAt, which is a monotonic maximum that folds in
 // directly — the full refresh would re-read every message, plan,
 // activity, and approval on each streaming assistant delta.
 case "thread.message-sent": {
 const existingRow = yield* projectionThreadRepository.getById({
 threadId: event.payload.threadId,
 });
 if (Option.isNone(existingRow)) {
 return;
 }
 const previousLatest = existingRow.value.latestUserMessageAt;
 yield* projectionThreadRepository.upsert({
 ...existingRow.value,
 updatedAt: event.occurredAt,
 latestUserMessageAt:
 event.payload.role === "user" &&
 (previousLatest === null || event.payload.createdAt > previousLatest)
 ? event.payload.createdAt
 : previousLatest,
 });
 return;
 }

 // Only approval and user-input lifecycle activities feed the pending
 // counters; the high-frequency progress/tool activities just bump
 // updatedAt.
 case "thread.activity-appended": {
 const existingRow = yield* projectionThreadRepository.getById({
 threadId: event.payload.threadId,
 });
 if (Option.isNone(existingRow)) {
 return;
 }
 yield* projectionThreadRepository.upsert({
 ...existingRow.value,
 updatedAt: event.occurredAt,
 });
 if (activityAffectsShellSummary(event.payload.activity.kind)) {
 yield* refreshThreadShellSummary(event.payload.threadId);
 }
 return;
 }

 case "thread.proposed-plan-upserted":
 case "thread.activity-appended":
 case "thread.approval-response-requested":
 case "thread.user-input-response-requested": {
 const existingRow = yield* projectionThreadRepository.getById({
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
perf: make streaming projection and activity appends incremental#6608

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Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

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 Closed

x1xhlol
wants to merge
4
commits into

from


+479

−2

 Closed


perf: make streaming projection and activity appends incremental
#6608
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5b48607

perf: make streaming projection and activity appends incremental


x1xhlol Aug 14, 2026
ef38aed

perf: index activity ids so streamed appends stop rescanning history


x1xhlol Aug 14, 2026
e310099

fix: gate the activity append fast path on reducer-produced ordering


x1xhlol Aug 14, 2026
5e23afa

Merge branch 'main' into perf/streaming-thread-projection


x1xhlol Aug 17, 2026

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211 changes: 211 additions & 0 deletions
apps/server/src/orchestration/Layers/ProjectionPipeline.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -2086,6 +2086,217 @@ it.layer(BaseTestLayer)("OrchestrationProjectionPipeline", (it) => {
 }),
 );

 it.effect("maintains shell summary fields across message and activity streams", () =>
 Effect.gen(function* () {
 const projectionPipeline = yield* OrchestrationProjectionPipeline;
 const eventStore = yield* OrchestrationEventStore;
 const sql = yield* SqlClient.SqlClient;
 const appendAndProject = (event: Parameters<typeof eventStore.append>[0]) =>
 eventStore
 .append(event)
 .pipe(Effect.flatMap((savedEvent) => projectionPipeline.projectEvent(savedEvent)));

 yield* appendAndProject({
 type: "project.created",
 eventId: EventId.make("evt-shell-summary-1"),
 aggregateKind: "project",
 aggregateId: ProjectId.make("project-shell-summary"),
 occurredAt: "2026-03-01T08:00:00.000Z",
 commandId: CommandId.make("cmd-shell-summary-1"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-1"),
 metadata: {},
 payload: {
 projectId: ProjectId.make("project-shell-summary"),
 title: "Project Shell Summary",
 workspaceRoot: "/tmp/project-shell-summary",
 defaultModelSelection: null,
 scripts: [],
 createdAt: "2026-03-01T08:00:00.000Z",
 updatedAt: "2026-03-01T08:00:00.000Z",
 },
 });

 yield* appendAndProject({
 type: "thread.created",
 eventId: EventId.make("evt-shell-summary-2"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:01.000Z",
 commandId: CommandId.make("cmd-shell-summary-2"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-2"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 projectId: ProjectId.make("project-shell-summary"),
 title: "Thread Shell Summary",
 modelSelection: {
 instanceId: ProviderInstanceId.make("codex"),
 model: "gpt-5-codex",
 },
 runtimeMode: "approval-required",
 interactionMode: "default",
 branch: null,
 worktreePath: null,
 createdAt: "2026-03-01T08:00:01.000Z",
 updatedAt: "2026-03-01T08:00:01.000Z",
 },
 });

 const readSummary = sql<{
 readonly latestUserMessageAt: string | null;
 readonly pendingUserInputCount: number;
 readonly updatedAt: string;
 }>`
 SELECT
 latest_user_message_at AS "latestUserMessageAt",
 pending_user_input_count AS "pendingUserInputCount",
 updated_at AS "updatedAt"
 FROM projection_threads
 WHERE thread_id = 'thread-shell-summary'
 `;

 yield* appendAndProject({
 type: "thread.message-sent",
 eventId: EventId.make("evt-shell-summary-3"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:02.000Z",
 commandId: CommandId.make("cmd-shell-summary-3"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-3"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 messageId: MessageId.make("message-shell-summary-user"),
 role: "user",
 text: "please do the thing",
 turnId: TurnId.make("turn-shell-summary-1"),
 streaming: false,
 createdAt: "2026-03-01T08:00:02.000Z",
 updatedAt: "2026-03-01T08:00:02.000Z",
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:02.000Z",
 },
 ]);

 // Streaming assistant deltas bump updatedAt but must not disturb
 // latestUserMessageAt or the pending counters.
 yield* appendAndProject({
 type: "thread.message-sent",
 eventId: EventId.make("evt-shell-summary-4"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:03.000Z",
 commandId: CommandId.make("cmd-shell-summary-4"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-4"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 messageId: MessageId.make("message-shell-summary-assistant"),
 role: "assistant",
 text: "working on it",
 turnId: TurnId.make("turn-shell-summary-1"),
 streaming: true,
 createdAt: "2026-03-01T08:00:03.000Z",
 updatedAt: "2026-03-01T08:00:03.000Z",
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:03.000Z",
 },
 ]);

 // Ordinary tool activities bump updatedAt without touching the
 // user-input counter; user-input lifecycle activities update it.
 yield* appendAndProject({
 type: "thread.activity-appended",
 eventId: EventId.make("evt-shell-summary-5"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:04.000Z",
 commandId: CommandId.make("cmd-shell-summary-5"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-5"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 activity: {
 id: EventId.make("activity-shell-summary-command"),
 tone: "tool",
 kind: "command",
 summary: "Ran a command",
 payload: {},
 turnId: TurnId.make("turn-shell-summary-1"),
 createdAt: "2026-03-01T08:00:04.000Z",
 },
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:04.000Z",
 },
 ]);

 yield* appendAndProject({
 type: "thread.activity-appended",
 eventId: EventId.make("evt-shell-summary-6"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:05.000Z",
 commandId: CommandId.make("cmd-shell-summary-6"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-6"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 activity: {
 id: EventId.make("activity-shell-summary-user-input"),
 tone: "info",
 kind: "user-input.requested",
 summary: "User input requested",
 payload: {
 requestId: "user-input-request-shell-summary-1",
 questions: [
 {
 id: "confirm",
 header: "Confirm",
 question: "Proceed?",
 options: [{ label: "yes", description: "Proceed" }],
 },
 ],
 },
 turnId: TurnId.make("turn-shell-summary-1"),
 createdAt: "2026-03-01T08:00:05.000Z",
 },
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 1,
 updatedAt: "2026-03-01T08:00:05.000Z",
 },
 ]);
 }),
 );

 it.effect("ignores non-stale provider approval response failures", () =>
 Effect.gen(function* () {
 const projectionPipeline = yield* OrchestrationProjectionPipeline;
Expand Down

57 changes: 55 additions & 2 deletions
apps/server/src/orchestration/Layers/ProjectionPipeline.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -130,6 +130,17 @@ function isStalePendingApprovalFailureDetail(detail: string | null): boolean {
 );
}

function activityAffectsShellSummary(kind: string): boolean {
 return (
 kind === "user-input.requested" ||
 kind === "user-input.resolved" ||
 kind === "provider.user-input.respond.failed" ||
 kind === "approval.requested" ||
 kind === "approval.resolved" ||
 kind === "provider.approval.respond.failed"
 );
}

function derivePendingUserInputCountFromActivities(
 activities: ReadonlyArray<ProjectionThreadActivity>,
): number {
Expand DownExpand Up@@ -850,9 +861,51 @@ const makeOrchestrationProjectionPipeline = Effect.fn("makeOrchestrationProjecti
 return;
 }

 case "thread.message-sent":
 // Message events cannot change any derived summary field except
 // latestUserMessageAt, which is a monotonic maximum that folds in
 // directly — the full refresh would re-read every message, plan,
 // activity, and approval on each streaming assistant delta.
 case "thread.message-sent": {
 const existingRow = yield* projectionThreadRepository.getById({
 threadId: event.payload.threadId,
 });
 if (Option.isNone(existingRow)) {
 return;
 }
 const previousLatest = existingRow.value.latestUserMessageAt;
 yield* projectionThreadRepository.upsert({
 ...existingRow.value,
 updatedAt: event.occurredAt,
 latestUserMessageAt:
 event.payload.role === "user" &&
 (previousLatest === null || event.payload.createdAt > previousLatest)
 ? event.payload.createdAt
 : previousLatest,
 });
 return;
 }

 // Only approval and user-input lifecycle activities feed the pending
 // counters; the high-frequency progress/tool activities just bump
 // updatedAt.
 case "thread.activity-appended": {
 const existingRow = yield* projectionThreadRepository.getById({
 threadId: event.payload.threadId,
 });
 if (Option.isNone(existingRow)) {
 return;
 }
 yield* projectionThreadRepository.upsert({
 ...existingRow.value,
 updatedAt: event.occurredAt,
 });
 if (activityAffectsShellSummary(event.payload.activity.kind)) {
 yield* refreshThreadShellSummary(event.payload.threadId);
 }
 return;
 }

 case "thread.proposed-plan-upserted":
 case "thread.activity-appended":
 case "thread.approval-response-requested":
 case "thread.user-input-response-requested": {
 const existingRow = yield* projectionThreadRepository.getById({
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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perf: make streaming projection and activity appends incremental
#6608
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5b48607

perf: make streaming projection and activity appends incremental


x1xhlol Aug 14, 2026
ef38aed

perf: index activity ids so streamed appends stop rescanning history


x1xhlol Aug 14, 2026
e310099

fix: gate the activity append fast path on reducer-produced ordering


x1xhlol Aug 14, 2026
5e23afa

Merge branch 'main' into perf/streaming-thread-projection


x1xhlol Aug 17, 2026

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211 changes: 211 additions & 0 deletions
apps/server/src/orchestration/Layers/ProjectionPipeline.test.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -2086,6 +2086,217 @@ it.layer(BaseTestLayer)("OrchestrationProjectionPipeline", (it) => {
 }),
 );

 it.effect("maintains shell summary fields across message and activity streams", () =>
 Effect.gen(function* () {
 const projectionPipeline = yield* OrchestrationProjectionPipeline;
 const eventStore = yield* OrchestrationEventStore;
 const sql = yield* SqlClient.SqlClient;
 const appendAndProject = (event: Parameters<typeof eventStore.append>[0]) =>
 eventStore
 .append(event)
 .pipe(Effect.flatMap((savedEvent) => projectionPipeline.projectEvent(savedEvent)));

 yield* appendAndProject({
 type: "project.created",
 eventId: EventId.make("evt-shell-summary-1"),
 aggregateKind: "project",
 aggregateId: ProjectId.make("project-shell-summary"),
 occurredAt: "2026-03-01T08:00:00.000Z",
 commandId: CommandId.make("cmd-shell-summary-1"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-1"),
 metadata: {},
 payload: {
 projectId: ProjectId.make("project-shell-summary"),
 title: "Project Shell Summary",
 workspaceRoot: "/tmp/project-shell-summary",
 defaultModelSelection: null,
 scripts: [],
 createdAt: "2026-03-01T08:00:00.000Z",
 updatedAt: "2026-03-01T08:00:00.000Z",
 },
 });

 yield* appendAndProject({
 type: "thread.created",
 eventId: EventId.make("evt-shell-summary-2"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:01.000Z",
 commandId: CommandId.make("cmd-shell-summary-2"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-2"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 projectId: ProjectId.make("project-shell-summary"),
 title: "Thread Shell Summary",
 modelSelection: {
 instanceId: ProviderInstanceId.make("codex"),
 model: "gpt-5-codex",
 },
 runtimeMode: "approval-required",
 interactionMode: "default",
 branch: null,
 worktreePath: null,
 createdAt: "2026-03-01T08:00:01.000Z",
 updatedAt: "2026-03-01T08:00:01.000Z",
 },
 });

 const readSummary = sql<{
 readonly latestUserMessageAt: string | null;
 readonly pendingUserInputCount: number;
 readonly updatedAt: string;
 }>`
 SELECT
 latest_user_message_at AS "latestUserMessageAt",
 pending_user_input_count AS "pendingUserInputCount",
 updated_at AS "updatedAt"
 FROM projection_threads
 WHERE thread_id = 'thread-shell-summary'
 `;

 yield* appendAndProject({
 type: "thread.message-sent",
 eventId: EventId.make("evt-shell-summary-3"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:02.000Z",
 commandId: CommandId.make("cmd-shell-summary-3"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-3"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 messageId: MessageId.make("message-shell-summary-user"),
 role: "user",
 text: "please do the thing",
 turnId: TurnId.make("turn-shell-summary-1"),
 streaming: false,
 createdAt: "2026-03-01T08:00:02.000Z",
 updatedAt: "2026-03-01T08:00:02.000Z",
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:02.000Z",
 },
 ]);

 // Streaming assistant deltas bump updatedAt but must not disturb
 // latestUserMessageAt or the pending counters.
 yield* appendAndProject({
 type: "thread.message-sent",
 eventId: EventId.make("evt-shell-summary-4"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:03.000Z",
 commandId: CommandId.make("cmd-shell-summary-4"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-4"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 messageId: MessageId.make("message-shell-summary-assistant"),
 role: "assistant",
 text: "working on it",
 turnId: TurnId.make("turn-shell-summary-1"),
 streaming: true,
 createdAt: "2026-03-01T08:00:03.000Z",
 updatedAt: "2026-03-01T08:00:03.000Z",
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:03.000Z",
 },
 ]);

 // Ordinary tool activities bump updatedAt without touching the
 // user-input counter; user-input lifecycle activities update it.
 yield* appendAndProject({
 type: "thread.activity-appended",
 eventId: EventId.make("evt-shell-summary-5"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:04.000Z",
 commandId: CommandId.make("cmd-shell-summary-5"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-5"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 activity: {
 id: EventId.make("activity-shell-summary-command"),
 tone: "tool",
 kind: "command",
 summary: "Ran a command",
 payload: {},
 turnId: TurnId.make("turn-shell-summary-1"),
 createdAt: "2026-03-01T08:00:04.000Z",
 },
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:04.000Z",
 },
 ]);

 yield* appendAndProject({
 type: "thread.activity-appended",
 eventId: EventId.make("evt-shell-summary-6"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:05.000Z",
 commandId: CommandId.make("cmd-shell-summary-6"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-6"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 activity: {
 id: EventId.make("activity-shell-summary-user-input"),
 tone: "info",
 kind: "user-input.requested",
 summary: "User input requested",
 payload: {
 requestId: "user-input-request-shell-summary-1",
 questions: [
 {
 id: "confirm",
 header: "Confirm",
 question: "Proceed?",
 options: [{ label: "yes", description: "Proceed" }],
 },
 ],
 },
 turnId: TurnId.make("turn-shell-summary-1"),
 createdAt: "2026-03-01T08:00:05.000Z",
 },
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 1,
 updatedAt: "2026-03-01T08:00:05.000Z",
 },
 ]);
 }),
 );

 it.effect("ignores non-stale provider approval response failures", () =>
 Effect.gen(function* () {
 const projectionPipeline = yield* OrchestrationProjectionPipeline;
Expand Down

57 changes: 55 additions & 2 deletions
apps/server/src/orchestration/Layers/ProjectionPipeline.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -130,6 +130,17 @@ function isStalePendingApprovalFailureDetail(detail: string | null): boolean {
 );
}

function activityAffectsShellSummary(kind: string): boolean {
 return (
 kind === "user-input.requested" ||
 kind === "user-input.resolved" ||
 kind === "provider.user-input.respond.failed" ||
 kind === "approval.requested" ||
 kind === "approval.resolved" ||
 kind === "provider.approval.respond.failed"
 );
}

function derivePendingUserInputCountFromActivities(
 activities: ReadonlyArray<ProjectionThreadActivity>,
): number {
Expand DownExpand Up@@ -850,9 +861,51 @@ const makeOrchestrationProjectionPipeline = Effect.fn("makeOrchestrationProjecti
 return;
 }

 case "thread.message-sent":
 // Message events cannot change any derived summary field except
 // latestUserMessageAt, which is a monotonic maximum that folds in
 // directly — the full refresh would re-read every message, plan,
 // activity, and approval on each streaming assistant delta.
 case "thread.message-sent": {
 const existingRow = yield* projectionThreadRepository.getById({
 threadId: event.payload.threadId,
 });
 if (Option.isNone(existingRow)) {
 return;
 }
 const previousLatest = existingRow.value.latestUserMessageAt;
 yield* projectionThreadRepository.upsert({
 ...existingRow.value,
 updatedAt: event.occurredAt,
 latestUserMessageAt:
 event.payload.role === "user" &&
 (previousLatest === null || event.payload.createdAt > previousLatest)
 ? event.payload.createdAt
 : previousLatest,
 });
 return;
 }

 // Only approval and user-input lifecycle activities feed the pending
 // counters; the high-frequency progress/tool activities just bump
 // updatedAt.
 case "thread.activity-appended": {
 const existingRow = yield* projectionThreadRepository.getById({
 threadId: event.payload.threadId,
 });
 if (Option.isNone(existingRow)) {
 return;
 }
 yield* projectionThreadRepository.upsert({
 ...existingRow.value,
 updatedAt: event.occurredAt,
 });
 if (activityAffectsShellSummary(event.payload.activity.kind)) {
 yield* refreshThreadShellSummary(event.payload.threadId);
 }
 return;
 }

 case "thread.proposed-plan-upserted":
 case "thread.activity-appended":
 case "thread.approval-response-requested":
 case "thread.user-input-response-requested": {
 const existingRow = yield* projectionThreadRepository.getById({
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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perf: make streaming projection and activity appends incremental#6608

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 Closed

x1xhlol
wants to merge
4
commits into

from


+479

−2

 Closed


perf: make streaming projection and activity appends incremental
#6608
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5b48607

perf: make streaming projection and activity appends incremental


x1xhlol Aug 14, 2026
ef38aed

perf: index activity ids so streamed appends stop rescanning history


x1xhlol Aug 14, 2026
e310099

fix: gate the activity append fast path on reducer-produced ordering


x1xhlol Aug 14, 2026
5e23afa

Merge branch 'main' into perf/streaming-thread-projection


x1xhlol Aug 17, 2026

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211 changes: 211 additions & 0 deletions
apps/server/src/orchestration/Layers/ProjectionPipeline.test.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -2086,6 +2086,217 @@ it.layer(BaseTestLayer)("OrchestrationProjectionPipeline", (it) => {
 }),
 );

 it.effect("maintains shell summary fields across message and activity streams", () =>
 Effect.gen(function* () {
 const projectionPipeline = yield* OrchestrationProjectionPipeline;
 const eventStore = yield* OrchestrationEventStore;
 const sql = yield* SqlClient.SqlClient;
 const appendAndProject = (event: Parameters<typeof eventStore.append>[0]) =>
 eventStore
 .append(event)
 .pipe(Effect.flatMap((savedEvent) => projectionPipeline.projectEvent(savedEvent)));

 yield* appendAndProject({
 type: "project.created",
 eventId: EventId.make("evt-shell-summary-1"),
 aggregateKind: "project",
 aggregateId: ProjectId.make("project-shell-summary"),
 occurredAt: "2026-03-01T08:00:00.000Z",
 commandId: CommandId.make("cmd-shell-summary-1"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-1"),
 metadata: {},
 payload: {
 projectId: ProjectId.make("project-shell-summary"),
 title: "Project Shell Summary",
 workspaceRoot: "/tmp/project-shell-summary",
 defaultModelSelection: null,
 scripts: [],
 createdAt: "2026-03-01T08:00:00.000Z",
 updatedAt: "2026-03-01T08:00:00.000Z",
 },
 });

 yield* appendAndProject({
 type: "thread.created",
 eventId: EventId.make("evt-shell-summary-2"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:01.000Z",
 commandId: CommandId.make("cmd-shell-summary-2"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-2"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 projectId: ProjectId.make("project-shell-summary"),
 title: "Thread Shell Summary",
 modelSelection: {
 instanceId: ProviderInstanceId.make("codex"),
 model: "gpt-5-codex",
 },
 runtimeMode: "approval-required",
 interactionMode: "default",
 branch: null,
 worktreePath: null,
 createdAt: "2026-03-01T08:00:01.000Z",
 updatedAt: "2026-03-01T08:00:01.000Z",
 },
 });

 const readSummary = sql<{
 readonly latestUserMessageAt: string | null;
 readonly pendingUserInputCount: number;
 readonly updatedAt: string;
 }>`
 SELECT
 latest_user_message_at AS "latestUserMessageAt",
 pending_user_input_count AS "pendingUserInputCount",
 updated_at AS "updatedAt"
 FROM projection_threads
 WHERE thread_id = 'thread-shell-summary'
 `;

 yield* appendAndProject({
 type: "thread.message-sent",
 eventId: EventId.make("evt-shell-summary-3"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:02.000Z",
 commandId: CommandId.make("cmd-shell-summary-3"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-3"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 messageId: MessageId.make("message-shell-summary-user"),
 role: "user",
 text: "please do the thing",
 turnId: TurnId.make("turn-shell-summary-1"),
 streaming: false,
 createdAt: "2026-03-01T08:00:02.000Z",
 updatedAt: "2026-03-01T08:00:02.000Z",
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:02.000Z",
 },
 ]);

 // Streaming assistant deltas bump updatedAt but must not disturb
 // latestUserMessageAt or the pending counters.
 yield* appendAndProject({
 type: "thread.message-sent",
 eventId: EventId.make("evt-shell-summary-4"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:03.000Z",
 commandId: CommandId.make("cmd-shell-summary-4"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-4"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 messageId: MessageId.make("message-shell-summary-assistant"),
 role: "assistant",
 text: "working on it",
 turnId: TurnId.make("turn-shell-summary-1"),
 streaming: true,
 createdAt: "2026-03-01T08:00:03.000Z",
 updatedAt: "2026-03-01T08:00:03.000Z",
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:03.000Z",
 },
 ]);

 // Ordinary tool activities bump updatedAt without touching the
 // user-input counter; user-input lifecycle activities update it.
 yield* appendAndProject({
 type: "thread.activity-appended",
 eventId: EventId.make("evt-shell-summary-5"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:04.000Z",
 commandId: CommandId.make("cmd-shell-summary-5"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-5"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 activity: {
 id: EventId.make("activity-shell-summary-command"),
 tone: "tool",
 kind: "command",
 summary: "Ran a command",
 payload: {},
 turnId: TurnId.make("turn-shell-summary-1"),
 createdAt: "2026-03-01T08:00:04.000Z",
 },
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 0,
 updatedAt: "2026-03-01T08:00:04.000Z",
 },
 ]);

 yield* appendAndProject({
 type: "thread.activity-appended",
 eventId: EventId.make("evt-shell-summary-6"),
 aggregateKind: "thread",
 aggregateId: ThreadId.make("thread-shell-summary"),
 occurredAt: "2026-03-01T08:00:05.000Z",
 commandId: CommandId.make("cmd-shell-summary-6"),
 causationEventId: null,
 correlationId: CorrelationId.make("cmd-shell-summary-6"),
 metadata: {},
 payload: {
 threadId: ThreadId.make("thread-shell-summary"),
 activity: {
 id: EventId.make("activity-shell-summary-user-input"),
 tone: "info",
 kind: "user-input.requested",
 summary: "User input requested",
 payload: {
 requestId: "user-input-request-shell-summary-1",
 questions: [
 {
 id: "confirm",
 header: "Confirm",
 question: "Proceed?",
 options: [{ label: "yes", description: "Proceed" }],
 },
 ],
 },
 turnId: TurnId.make("turn-shell-summary-1"),
 createdAt: "2026-03-01T08:00:05.000Z",
 },
 },
 });

 assert.deepEqual(yield* readSummary, [
 {
 latestUserMessageAt: "2026-03-01T08:00:02.000Z",
 pendingUserInputCount: 1,
 updatedAt: "2026-03-01T08:00:05.000Z",
 },
 ]);
 }),
 );

 it.effect("ignores non-stale provider approval response failures", () =>
 Effect.gen(function* () {
 const projectionPipeline = yield* OrchestrationProjectionPipeline;
Expand Down

57 changes: 55 additions & 2 deletions
apps/server/src/orchestration/Layers/ProjectionPipeline.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -130,6 +130,17 @@ function isStalePendingApprovalFailureDetail(detail: string | null): boolean {
 );
}

function activityAffectsShellSummary(kind: string): boolean {
 return (
 kind === "user-input.requested" ||
 kind === "user-input.resolved" ||
 kind === "provider.user-input.respond.failed" ||
 kind === "approval.requested" ||
 kind === "approval.resolved" ||
 kind === "provider.approval.respond.failed"
 );
}

function derivePendingUserInputCountFromActivities(
 activities: ReadonlyArray<ProjectionThreadActivity>,
): number {
Expand DownExpand Up@@ -850,9 +861,51 @@ const makeOrchestrationProjectionPipeline = Effect.fn("makeOrchestrationProjecti
 return;
 }

 case "thread.message-sent":
 // Message events cannot change any derived summary field except
 // latestUserMessageAt, which is a monotonic maximum that folds in
 // directly — the full refresh would re-read every message, plan,
 // activity, and approval on each streaming assistant delta.
 case "thread.message-sent": {
 const existingRow = yield* projectionThreadRepository.getById({
 threadId: event.payload.threadId,
 });
 if (Option.isNone(existingRow)) {
 return;
 }
 const previousLatest = existingRow.value.latestUserMessageAt;
 yield* projectionThreadRepository.upsert({
 ...existingRow.value,
 updatedAt: event.occurredAt,
 latestUserMessageAt:
 event.payload.role === "user" &&
 (previousLatest === null || event.payload.createdAt > previousLatest)
 ? event.payload.createdAt
 : previousLatest,
 });
 return;
 }

 // Only approval and user-input lifecycle activities feed the pending
 // counters; the high-frequency progress/tool activities just bump
 // updatedAt.
 case "thread.activity-appended": {
 const existingRow = yield* projectionThreadRepository.getById({
 threadId: event.payload.threadId,
 });
 if (Option.isNone(existingRow)) {
 return;
 }
 yield* projectionThreadRepository.upsert({
 ...existingRow.value,
 updatedAt: event.occurredAt,
 });
 if (activityAffectsShellSummary(event.payload.activity.kind)) {
 yield* refreshThreadShellSummary(event.payload.threadId);
 }
 return;
 }

 case "thread.proposed-plan-upserted":
 case "thread.activity-appended":
 case "thread.approval-response-requested":
 case "thread.user-input-response-requested": {
 const existingRow = yield* projectionThreadRepository.getById({
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