Félix Malfait
ca8ab32253
## Rationale The AI chat stream keeps every published chunk in a Redis list (`agent-chat-stream-chunks:<threadId>`, 1h TTL) so late subscribers can catch up. On `message-persisted` the list is deleted. On `credits-exhausted` — the *other* successful terminal event — it wasn't. Any reload/refetch within the TTL replayed the orphaned chunks, flipping the thread into a "streaming" state that no terminal event ever closes: an endless spinner until the user sends another message. **Production evidence (Sentry):** `Billing Credits Exhausted` fired for **290 users / 937 events in 90 days**, ongoing ([TWENTY-SERVER-G42](https://twenty-v7.sentry.io/issues/TWENTY-SERVER-G42)) — every one of those users who reloads the chat within an hour hits this. ## Why this is the root cause, not a symptom patch The chunk list's lifecycle contract is "cleared when the turn settles". `credits-exhausted` resolves the job successfully **without** persisting a `lastStreamError`, so unlike `stream-error` there is no persisted terminator for catchup to replay after the chunks — the replay is unconditionally un-closeable. Deleting on both settle events restores the contract exactly where it's already enforced for `message-persisted`. `stream-error` deliberately keeps the list: the persisted error acts as the replay terminator, letting a reloading client still see the failed turn's partial output. ## User impact Users who hit their billing cap mid-answer (~100/month) no longer come back to a permanently spinning thread after a reload — they see the settled conversation and the billing state. ## Test plan - [x] Unit spec: chunk accumulation with 1-based seq, deletion on both terminal events (`it.each`), retention on `stream-error` - [ ] CI green https://claude.ai/code/session_01Lyi6zTema2FMVVh8MD6c38 --- _Generated by [Claude Code](https://claude.ai/code/session_01Lyi6zTema2FMVVh8MD6c38)_ <!-- This is an auto-generated description by cubic. --> <a href="https://cubic.dev/pr/twentyhq/twenty/pull/22477?utm_source=github" target="_blank" rel="noopener noreferrer" data-no-image-dialog="true"><picture><source media="(prefers-color-scheme: dark)" srcset="https://www.cubic.dev/buttons/review-in-cubic-dark.svg"><source media="(prefers-color-scheme: light)" srcset="https://www.cubic.dev/buttons/review-in-cubic-light.svg"><img alt="Review in cubic" src="https://www.cubic.dev/buttons/review-in-cubic-dark.svg"></picture></a> <!-- End of auto-generated description by cubic. -->
The #1 Open-Source CRM
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Why Twenty
Twenty gives technical teams the building blocks for a custom CRM that meets complex business needs and quickly adapts as the business evolves. Twenty is the CRM you build, ship, and version like the rest of your stack.
Learn more about why we built Twenty
Installation
Cloud
The fastest way to get started. Sign up at twenty.com and spin up a workspace in under a minute, with no infrastructure to manage and always up to date.
Build an app
Scaffold a new app with the Twenty CLI:
npx create-twenty-app my-app
Define objects, fields, and views as code:
import { defineObject, FieldType } from 'twenty-sdk/define';
export default defineObject({
nameSingular: 'deal',
namePlural: 'deals',
labelSingular: 'Deal',
labelPlural: 'Deals',
fields: [
{ name: 'name', label: 'Name', type: FieldType.TEXT },
{ name: 'amount', label: 'Amount', type: FieldType.CURRENCY },
{ name: 'closeDate', label: 'Close Date', type: FieldType.DATE_TIME },
],
});
Then ship it to your workspace:
npx twenty app:publish --private
See the app development guide for objects, views, agents, and logic functions.
Self-hosting
Run Twenty on your own infrastructure with Docker Compose, or contribute locally via the local setup guide.
Everything you need
Twenty gives you the building blocks of a modern CRM (objects, views, workflows, and agents) and lets you extend them as code. Here's a tour of what's in the box.
Want to go deeper? Read the 
User Guide for product walkthroughs, or the Documentation for developer reference.
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Learn more about version control in doc
Stack
TypeScript
Nx
NestJS, with BullMQ, 
PostgreSQL, 
Redis
React, with Jotai, Linaria and Lingui
Thanks
Thanks to these amazing services that we use and recommend for code review (Greptile), catching bugs (Sentry) and translating (Crowdin).
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