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[Payment due @shubham1206agra] Render thinking + draft-streaming UI for custom agent chats#90751

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yuwen-stream-custom-agent-client
May 25, 2026
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[Payment due @shubham1206agra] Render thinking + draft-streaming UI for custom agent chats#90751
inimaga merged 13 commits into
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yuwen-stream-custom-agent-client

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@yuwenmemon

@yuwenmemon yuwenmemon commented May 15, 2026

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@inimaga please review

Explanation of Change

The server side now streams reasoning summaries, status indicators, and live draft body deltas for custom-agent chats (see Web-Expensify#52866 and Auth#21626). The client just isn't subscribing yet — the AgentZeroStatusProvider gate at `AgentZeroStatusContext.tsx` only opens for Concierge DMs and `#admins` rooms.

This PR opens the gate for custom-agent chats and threads the persona's accountID through the existing UI so the thinking bubble + streamed draft render under the agent's avatar and display name instead of Concierge's.

Fixed Issues

$ https://github.com/Expensify/Expensify/issues/636271
PROPOSAL: N/A (internal feature work; see tracking issue)

Tests

Requires:

  1. Open Account → Agents, create a custom agent with a simple prompt ("just respond hi").
  2. Open the DM with that agent.
  3. Send a chat message.
  4. Verify within ~1 second the thinking indicator bubble appears with the agent's avatar and display name at the top of the chat (not Concierge's).
  5. As the LLM generates the response, verify the draft message body streams in live under the agent's avatar (character-by-character).
  6. Once the final `AddComment` lands, the thinking bubble clears and the chat shows the agent's completed reply.
  7. Open a Concierge DM and repeat the flow — verify the thinking bubble + streamed draft still render under Concierge's avatar (regression).
  8. Verify that no errors appear in the JS console.

QA Steps

Same as Tests. The custom-agent feature is gated behind `BETAS.CUSTOM_AGENT`; QA testers need that beta on their account to see the Agents settings menu and create an agent.

  • Verify that no errors appear in the JS console

PR Author Checklist

  • I linked the correct issue in the ### Fixed Issues section above
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Kapture.2026-05-18.at.15.43.20.mp4

@yuwenmemon yuwenmemon requested review from a team as code owners May 15, 2026 05:38
@melvin-bot melvin-bot Bot requested review from shubham1206agra and removed request for a team May 15, 2026 05:39
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@shubham1206agra Please copy/paste the Reviewer Checklist from here into a new comment on this PR and complete it. If you have the K2 extension, you can simply click: [this button]

@melvin-bot melvin-bot Bot requested review from joekaufmanexpensify and removed request for a team May 15, 2026 05:39
const actionsValue = {kickoffWaitingIndicator};
function AgentZeroStatusGate({reportID, personaAccountID, children}: React.PropsWithChildren<{reportID: string; personaAccountID: number}>) {
const {kickoffWaitingIndicator, ...indicatorState} = useAgentZeroStatusIndicator(reportID, personaAccountID);
const stateValue = useMemo(() => ({...indicatorState, personaAccountID}), [indicatorState, personaAccountID]);

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❌ CLEAN-REACT-PATTERNS-0 (docs)

React Compiler is enabled and this file compiles successfully. The manual useMemo for stateValue is redundant — the compiler automatically memoizes derived values. Additionally, indicatorState is a new object reference every render (from the rest-spread of the hook return), so this memo never actually caches.

Remove the wrapper and compute the value directly:

const stateValue = {...indicatorState, personaAccountID};

Reviewed at: 06e69be | Please rate this suggestion with 👍 or 👎 to help us improve! Reactions are used to monitor reviewer efficiency.

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(Yuwen's Agent) Fixed in c978370 — dropped the useMemo wrapper. React Compiler handles it.

function AgentZeroStatusGate({reportID, personaAccountID, children}: React.PropsWithChildren<{reportID: string; personaAccountID: number}>) {
const {kickoffWaitingIndicator, ...indicatorState} = useAgentZeroStatusIndicator(reportID, personaAccountID);
const stateValue = useMemo(() => ({...indicatorState, personaAccountID}), [indicatorState, personaAccountID]);
const actionsValue = useMemo(() => ({kickoffWaitingIndicator}), [kickoffWaitingIndicator]);

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❌ CLEAN-REACT-PATTERNS-0 (docs)

React Compiler is enabled and this file compiles successfully. The manual useMemo for actionsValue is redundant — the compiler handles this automatically.

Remove the wrapper:

const actionsValue = {kickoffWaitingIndicator};

Reviewed at: 06e69be | Please rate this suggestion with 👍 or 👎 to help us improve! Reactions are used to monitor reviewer efficiency.

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(Yuwen's Agent) Fixed in c978370 — dropped the useMemo wrapper. React Compiler handles it.

const isAgentZeroChat = isConciergeChat || isAdmin;
// First participant accountID with a SHARED_NVP_AGENT_PROMPT entry — both gates and identifies
// the persona in one pass so downstream callers can attribute streaming events.
const agentParticipantAccountID = useMemo(() => {

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❌ CLEAN-REACT-PATTERNS-0 (docs)

React Compiler is enabled and this file compiles successfully. The manual useMemo for agentParticipantAccountID is redundant — the compiler automatically caches derived computations.

Remove the wrapper:

const agentParticipantAccountID = (!participantAccountIDs?.length || !agentPrompts)
    ? undefined
    : participantAccountIDs.find((accountID) => !!agentPrompts[`${ONYXKEYS.COLLECTION.SHARED_NVP_AGENT_PROMPT}${accountID}`]);

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(Yuwen's Agent) Fixed in c978370 — dropped the useMemo wrapper. React Compiler handles it.

function AgentZeroStatusProvider({reportID, children}: React.PropsWithChildren<{reportID: string | undefined}>) {
const [chatType] = useOnyx(`${ONYXKEYS.COLLECTION.REPORT}${reportID}`, {selector: getReportChatType});
const [participantAccountIDs] = useOnyx(`${ONYXKEYS.COLLECTION.REPORT}${reportID}`, {selector: getReportParticipantAccountIDs});
const [agentPrompts] = useOnyx(ONYXKEYS.COLLECTION.SHARED_NVP_AGENT_PROMPT);

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❌ PERF-11 (docs)

useOnyx(ONYXKEYS.COLLECTION.SHARED_NVP_AGENT_PROMPT) subscribes to the entire agent-prompt collection. Any change to any agent prompt will re-render this provider and re-evaluate all downstream logic, even though it only needs to know whether a specific participant has an entry.

Consider narrowing the subscription — e.g., a selector that reduces the collection to just a Set of accountIDs (small primitive set), or restructure so you subscribe to individual SHARED_NVP_AGENT_PROMPT_{accountID} keys for each participant.


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(Yuwen's Agent) Fixed in c978370. Added a getAgentAccountIDFlags selector that reduces the full collection to a small Record<accountID, true> — only re-renders when an agent is added/removed (not on prompt-content edits). Applied to both AgentZeroStatusContext and ConciergeDraftContext.

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💡 Codex Review

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Reviewed commit: 06e69bed31

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Comment on lines +75 to +76
const isCustomAgentChat = agentParticipantAccountID !== undefined;
const isAgentZeroChat = isConciergeChat || isAdmin || isCustomAgentChat;

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P1 Badge Extend draft gate to custom-agent chats

This change enables AgentZeroStatusProvider for custom-agent DMs, but the sibling ConciergeDraftProvider in ReportScreen still only mounts for Concierge/admin chats (ConciergeDraftContext.tsx keeps isAgentZeroChat = isConciergeChat || isAdmin). In a custom-agent DM, that means status/thinking can render while draft subscriptions never start, so CONCIERGE_DRAFT_* events are dropped and the streamed draft bubble does not appear. Please keep the gating logic aligned so custom-agent chats mount both providers.

Useful? React with 👍 / 👎.

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(Yuwen's Agent) Already addressed in commit e177895 (feat(chatbot): open ConciergeDraftProvider gate for custom agent chats) — ConciergeDraftContext.tsx now uses the same detection logic as AgentZeroStatusContext (SHARED_NVP_AGENT_PROMPT entry OR agent_<id>@expensify.ai email pattern). The follow-up commit c978370 also keeps both providers' subscription/selector logic aligned.

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Core design doc issue

import type {ConciergeDraft} from './conciergeDraftState';
import {applyConciergeDraftEvent, getCachedDraft, setCachedDraft} from './conciergeDraftState';

const CUSTOM_AGENT_EMAIL_REGEX = /^agent_(\d+)@expensify\.ai$/;

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❌ CONSISTENCY-3 (docs)

CUSTOM_AGENT_EMAIL_REGEX, getReportParticipantAccountIDs, and getAgentAccountIDFlags are duplicated verbatim from AgentZeroStatusContext.tsx. The agent-detection logic in the provider body (lines 74-80) is also a near-duplicate of the same logic in AgentZeroStatusContext.tsx (lines 94-100).

Extract the shared constants, selectors, and detection logic into a shared utility (e.g., src/pages/inbox/agentChatUtils.ts) or a shared hook (e.g., useIsAgentZeroChat(reportID)) that both providers can import.


Reviewed at: c978370 | Please rate this suggestion with 👍 or 👎 to help us improve! Reactions are used to monitor reviewer efficiency.

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(Yuwen's Agent) Fixed in 0f7f2b2. Extracted CUSTOM_AGENT_EMAIL_REGEX, getReportParticipantAccountIDs, getAgentAccountIDFlags, and a new getAgentLoginAccountIDFlags into src/selectors/AgentZeroChat.ts — both contexts import from there now.

const [chatType] = useOnyx(`${ONYXKEYS.COLLECTION.REPORT}${reportID}`, {selector: getReportChatType});
const [participantAccountIDs] = useOnyx(`${ONYXKEYS.COLLECTION.REPORT}${reportID}`, {selector: getReportParticipantAccountIDs});
const [agentAccountIDFlags] = useOnyx(ONYXKEYS.COLLECTION.SHARED_NVP_AGENT_PROMPT, {selector: getAgentAccountIDFlags});
const [personalDetails] = useOnyx(ONYXKEYS.PERSONAL_DETAILS_LIST);

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❌ PERF-11 (docs)

Subscribing to ONYXKEYS.PERSONAL_DETAILS_LIST without a selector causes AgentZeroStatusProvider to re-render whenever any user's personal details change (avatar, display name, status, etc.), even though only the login field of a small number of participant accountIDs is needed. Consider narrowing the subscription with a selector or extracting just the needed logins, and add a justifying comment if the broad subscription is intentional.


Reviewed at: c978370 | Please rate this suggestion with 👍 or 👎 to help us improve! Reactions are used to monitor reviewer efficiency.

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(Yuwen's Agent) Fixed in 0f7f2b2. Replaced the raw useOnyx(ONYXKEYS.PERSONAL_DETAILS_LIST) with useOnyx(..., {selector: getAgentLoginAccountIDFlags}) — reduces the list to a small Record<accountID, true> of accounts whose login matches agent_<id>@expensify.ai. Provider only re-renders when an agent account is added/removed (or its login changes), not on any unrelated user-detail change.

const [chatType] = useOnyx(`${ONYXKEYS.COLLECTION.REPORT}${reportID}`, {selector: getReportChatType});
const [participantAccountIDs] = useOnyx(`${ONYXKEYS.COLLECTION.REPORT}${reportID}`, {selector: getReportParticipantAccountIDs});
const [agentAccountIDFlags] = useOnyx(ONYXKEYS.COLLECTION.SHARED_NVP_AGENT_PROMPT, {selector: getAgentAccountIDFlags});
const [personalDetails] = useOnyx(ONYXKEYS.PERSONAL_DETAILS_LIST);

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❌ PERF-11 (docs)

Same issue as in AgentZeroStatusContext.tsx: subscribing to ONYXKEYS.PERSONAL_DETAILS_LIST without a selector causes re-renders on any personal details change across the entire app, when only the login field for a few participant accountIDs is needed.


Reviewed at: c978370 | Please rate this suggestion with 👍 or 👎 to help us improve! Reactions are used to monitor reviewer efficiency.

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(Yuwen's Agent) Fixed in 0f7f2b2 (same selector + shared module as AgentZeroStatusContext).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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codecov Bot commented May 18, 2026

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Codecov Report

❌ Looks like you've decreased code coverage for some files. Please write tests to increase, or at least maintain, the existing level of code coverage. See our documentation here for how to interpret this table.

Files with missing lines Coverage Δ
src/hooks/useAgentZeroStatusIndicator.ts 95.12% <100.00%> (+0.03%) ⬆️
...Navigation/AppNavigator/AuthScreensInitHandler.tsx 96.61% <100.00%> (+0.05%) ⬆️
src/pages/home/report/ConciergeThinkingMessage.tsx 86.74% <100.00%> (ø)
src/pages/inbox/AgentZeroStatusContext.tsx 100.00% <100.00%> (ø)
src/pages/inbox/ConciergeDraftContext.tsx 96.77% <100.00%> (+62.68%) ⬆️
src/pages/inbox/conciergeDraftState.ts 94.89% <100.00%> (-0.07%) ⬇️
src/selectors/AgentZeroChat.ts 60.00% <60.00%> (ø)
... and 312 files with indirect coverage changes

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
@yuwenmemon yuwenmemon requested a review from inimaga May 18, 2026 22:55
@inimaga

inimaga commented May 20, 2026

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@yuwenmemon Could you merge main in and resolve conflicts. Also, worth generating an Adhoc build if you want C+ review on it as well.

…gent-client

# Conflicts:
#	src/pages/inbox/conciergeDraftState.ts
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@shubham1206agra bump for a review please

Comment thread src/pages/inbox/conciergeDraftState.ts Outdated
function buildConciergeDraftReportAction({bodyMarkdown, created, finalRenderedHTML, reportActionID, reportID}: BuildConciergeDraftReportActionParams): ReportAction | null {
function buildConciergeDraftReportAction({
actorAccountID,
actorDisplayName,

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@yuwenmemon No one passes actorDisplayName param. Is this intentional?

Comment thread src/selectors/AgentZeroChat.ts Outdated
* Canonical email pattern for custom-agent accounts. Mirrors the value PHP mints in
* `AgentAPI::createAgent` (`agent_<accountID>@expensify.ai`).
*/
const CUSTOM_AGENT_EMAIL_REGEX = /^agent_(\d+)@expensify\.ai$/;

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@yuwenmemon Use isAgentEmail from SessionUtils

Comment thread src/libs/Pusher/types.ts Outdated
Comment on lines +40 to +45
/**
* Persona accountID this reasoning bubble should be attributed to (Concierge for Concierge
* runs, the custom agent's accountID for agent runs). Optional for backward compatibility —
* absent payloads keep the legacy Concierge attribution.
*/
actorAccountID?: number;

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@yuwenmemon Is there any use for this field in this PR? Cause I can't see any usage.

Comment thread src/pages/inbox/AgentZeroStatusContext.tsx
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Updated!

@shubham1206agra

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@melvin-bot melvin-bot Bot changed the title Render thinking + draft-streaming UI for custom agent chats [Payment due @shubham1206agra] Render thinking + draft-streaming UI for custom agent chats May 22, 2026
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melvin-bot Bot commented May 22, 2026

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🎯 @shubham1206agra, thanks for reviewing and testing this PR! 🎉

A payment issue will be created for your review once this PR is deployed to production.
E/E issue linked to the PR - https://www.github.com/Expensify/Expensify/issues/636271.

If payment is not needed (e.g., regression PR review fix etc), react with 👎 to this comment to prevent the payment issue from being created.

@@ -41,10 +42,16 @@ const ConciergeDraftActionsContext = createContext<ConciergeDraftActions>(defaul

function ConciergeDraftProvider({reportID, children}: React.PropsWithChildren<{reportID: string | undefined}>) {

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❌ CONSISTENCY-3 (docs)

The custom-agent detection logic (subscribing to participantAccountIDs via getReportParticipantAccountIDs, subscribing to agentAccountIDFlags via getAgentAccountIDFlags, and computing isCustomAgentChat) is duplicated almost verbatim between ConciergeDraftContext.tsx and AgentZeroStatusContext.tsx. Both providers perform the same three useOnyx subscriptions and the same isAgentZeroChat computation.

Extract a shared hook (e.g., useIsAgentZeroChat(reportID)) that encapsulates the agent-detection logic and returns the relevant values (isAgentZeroChat, agentParticipantAccountID, etc.). Both providers can then call that single hook instead of duplicating the subscriptions and logic.


Reviewed at: b423f9a | Please rate this suggestion with 👍 or 👎 to help us improve! Reactions are used to monitor reviewer efficiency.

@inimaga inimaga left a comment

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1 issue

Comment on lines +64 to +68
// First participant whose accountID has a SHARED_NVP_AGENT_PROMPT entry. Both gates and
// identifies the persona in one pass.
const agentParticipantAccountID = participantAccountIDs?.find((accountID) => !!agentAccountIDFlags?.[accountID]);
const isCustomAgentChat = agentParticipantAccountID !== undefined;
const isAgentZeroChat = isConciergeChat || isAdmin || isCustomAgentChat;

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Custom-agent detection is gated entirely on SHARED_NVP_AGENT_PROMPT already being hydrated. So If a user opens a custom-agent chat directly after sign-in or from a link without first visiting Settings > Agents, this collection will be empty.
We need to hydrate this data before the gate runs, or identify custom-agent chats from report metadata or participants that are available on report open.

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Ah good call. Fixed! Added an eager openAgentsPage() call to AuthScreensInitHandler.tsx right after the existing App.openApp() / App.reconnectApp() bootstrap. Does that work?

Comment on lines +53 to +54
const isCustomAgentChat = participantAccountIDs?.some((accountID) => !!agentAccountIDFlags?.[accountID]);
const isAgentZeroChat = isConciergeChat || isAdmin || isCustomAgentChat;

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@yuwenmemon

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@inimaga Updated!

@inimaga inimaga merged commit 7476b5e into main May 25, 2026
36 checks passed
@inimaga inimaga deleted the yuwen-stream-custom-agent-client branch May 25, 2026 08:29
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✋ This PR was not deployed to staging yet because QA is ongoing. It will be automatically deployed to staging after the next production release.

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🚧 @inimaga has triggered a test Expensify/App build. You can view the workflow run here.

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🚀 Deployed to staging by https://github.com/inimaga in version: 9.3.81-0 🚀

platform result
🕸 web 🕸 success ✅
🤖 android 🤖 cancelled 🔪
🍎 iOS 🍎 cancelled 🔪

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I reviewed the changes in this PR and the existing help site articles under App/docs/articles.

No help site changes are required.

This PR extends the thinking-bubble and draft-streaming UI to custom-agent chats — a feature gated behind BETAS.CUSTOM_AGENT. The changes are purely client-side plumbing (threading personaAccountID through existing components so the agent's avatar renders instead of Concierge's). The existing Concierge AI help articles (docs/articles/new-expensify/concierge-ai/) describe Concierge behavior, which is unchanged by this PR. Custom agents are not yet documented on the help site because the feature is still in beta, and this PR doesn't alter any publicly documented behavior or introduce new user-facing settings.

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🚀 Deployed to production by https://github.com/luacmartins in version: 9.3.81-2 🚀

platform result
🕸 web 🕸 success ✅
🤖 android 🤖 success ✅
🍎 iOS 🍎 success ✅

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6 participants