This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and the packages will be published to npm automatically. If you're not ready to do a release yet, that's fine, whenever you add more changesets to main, this PR will be updated. # Releases ## @chat-adapter/discord@4.38.0 ### Minor Changes -a0cba02: Add Vercel Connect credential resolvers and custom webhook verification to the Discord adapter, with `create-chat-sdk --connect` scaffolding for Discord bots. ### Patch Changes -a94995e: Restore attachment downloads across Discord inbound message paths. -4bdf721: Preserve content and attachments from forwarded Discord message snapshots. - Updated dependencies [0f24cc3] - Updated dependencies [bdeb2bf] - Updated dependencies [a0cba02] - Updated dependencies [83ede7e] - Updated dependencies [18d4a23] - chat@4.38.0 - @chat-adapter/shared@4.38.0 ## @chat-adapter/messenger@4.38.0 ### Minor Changes -18d4a23: Add a shared thread API for marking messages as read across WhatsApp, Messenger, and XChat. Note for anyone calling `XchatAdapter.markAsRead()` directly: it now rejects when a receipt fails instead of logging a warning and resolving. Automatic read receipts are unaffected, since the adapter still catches and logs those internally. If you call the method yourself without awaiting it, add a `.catch()` so a failed receipt does not surface as an unhandled rejection. ### Patch Changes - Updated dependencies [0f24cc3] - Updated dependencies [bdeb2bf] - Updated dependencies [a0cba02] - Updated dependencies [83ede7e] - Updated dependencies [18d4a23] - chat@4.38.0 - @chat-adapter/shared@4.38.0 ## @chat-adapter/notion@4.38.0 ### Minor Changes -06b04ac: Add outbound-only Vercel Connect authentication for Notion while retaining native webhook verification and scaffolding. ### Patch Changes - Updated dependencies [0f24cc3] - Updated dependencies [bdeb2bf] - Updated dependencies [a0cba02] - Updated dependencies [83ede7e] - Updated dependencies [18d4a23] - chat@4.38.0 - @chat-adapter/shared@4.38.0 ## @chat-adapter/telegram@4.38.0 ### Minor Changes -0f24cc3: Preserve normalized replied-to message context and populate it from Telegram replies. -7a1150c: Add outbound-only Vercel Connect authentication for Telegram while retaining native webhook verification or polling. -3bbf3ff: Use post-and-edit streaming by default and make native Telegram drafts opt-in. Streams now render the same way in every chat type; set the new `nativeStreaming: true` config option to restore draft previews in private chats. The adapter now owns the post-and-edit loop so edits stay under Telegram's per-chat rate limit. Edits are throttled to a 1100ms floor, configurable with the new `streamingEditIntervalMs` option, and a rate-limited final edit is retried once instead of failing the post. ### Patch Changes -1d2b78d: Deduplicate repeated Telegram webhook updates by their update ID using the configured state adapter. -745fdf5: respect Telegram streaming rate limits and target XChat read receipts exactly - Updated dependencies [0f24cc3] - Updated dependencies [bdeb2bf] - Updated dependencies [a0cba02] - Updated dependencies [83ede7e] - Updated dependencies [18d4a23] - chat@4.38.0 - @chat-adapter/shared@4.38.0 ## @chat-adapter/whatsapp@4.38.0 ### Minor Changes -83ede7e: add native message replies with WhatsApp contextual reply support -18d4a23: Add a shared thread API for marking messages as read across WhatsApp, Messenger, and XChat. Note for anyone calling `XchatAdapter.markAsRead()` directly: it now rejects when a receipt fails instead of logging a warning and resolving. Automatic read receipts are unaffected, since the adapter still catches and logs those internally. If you call the method yourself without awaiting it, add a `.catch()` so a failed receipt does not surface as an unhandled rejection. ### Patch Changes - Updated dependencies [0f24cc3] - Updated dependencies [bdeb2bf] - Updated dependencies [a0cba02] - Updated dependencies [83ede7e] - Updated dependencies [18d4a23] - chat@4.38.0 - @chat-adapter/shared@4.38.0 ## @chat-adapter/x@4.38.0 ### Minor Changes -18d4a23: Add a shared thread API for marking messages as read across WhatsApp, Messenger, and XChat. Note for anyone calling `XchatAdapter.markAsRead()` directly: it now rejects when a receipt fails instead of logging a warning and resolving. Automatic read receipts are unaffected, since the adapter still catches and logs those internally. If you call the method yourself without awaiting it, add a `.catch()` so a failed receipt does not surface as an unhandled rejection. ### Patch Changes -745fdf5: respect Telegram streaming rate limits and target XChat read receipts exactly - Updated dependencies [0f24cc3] - Updated dependencies [bdeb2bf] - Updated dependencies [a0cba02] - Updated dependencies [83ede7e] - Updated dependencies [18d4a23] - chat@4.38.0 - @chat-adapter/shared@4.38.0 ## chat@4.38.0 ### Minor Changes -0f24cc3: Preserve normalized replied-to message context and populate it from Telegram replies. -bdeb2bf: Add a workflow-safe `chat/serialization` entrypoint and isolate automatic Chat class serializers from Node-only runtime dependencies. -a0cba02: Add Vercel Connect credential resolvers and custom webhook verification to the Discord adapter, with `create-chat-sdk --connect` scaffolding for Discord bots. -83ede7e: add native message replies with WhatsApp contextual reply support -18d4a23: Add a shared thread API for marking messages as read across WhatsApp, Messenger, and XChat. Note for anyone calling `XchatAdapter.markAsRead()` directly: it now rejects when a receipt fails instead of logging a warning and resolving. Automatic read receipts are unaffected, since the adapter still catches and logs those internally. If you call the method yourself without awaiting it, add a `.catch()` so a failed receipt does not surface as an unhandled rejection. ## create-chat-sdk@0.4.0 ### Minor Changes -a0cba02: Add Vercel Connect credential resolvers and custom webhook verification to the Discord adapter, with `create-chat-sdk --connect` scaffolding for Discord bots. -06b04ac: Add outbound-only Vercel Connect authentication for Notion while retaining native webhook verification and scaffolding. -7a1150c: Add outbound-only Vercel Connect authentication for Telegram while retaining native webhook verification or polling. ## @chat-adapter/gchat@4.38.0 ### Patch Changes -2f40a32: Fix attachment downloads failing with a 400 when `attachmentDataRef` is present `fetchAttachmentData` called the Chat media endpoint without `alt=media`, so it returned resource metadata rather than file bytes and rejected the arraybuffer request with a bare 400. Every download by `resourceName` failed, which is the path taken for any file uploaded directly to Chat. The download path is also hardened: when `media.download` fails and the attachment carries a `downloadUri`, the adapter now falls back to fetching that URL instead of rejecting, and failures with no fallback are routed through the shared error handling so a 429 surfaces as `AdapterRateLimitError` like every other Chat API call. - Updated dependencies [0f24cc3] - Updated dependencies [bdeb2bf] - Updated dependencies [a0cba02] - Updated dependencies [83ede7e] - Updated dependencies [18d4a23] - chat@4.38.0 - @chat-adapter/shared@4.38.0 ## @chat-adapter/github@4.38.0 ### Patch Changes - Updated dependencies [0f24cc3] - Updated dependencies [bdeb2bf] - Updated dependencies [a0cba02] - Updated dependencies [83ede7e] - Updated dependencies [18d4a23] - chat@4.38.0 - @chat-adapter/shared@4.38.0 ## @chat-adapter/instagram@4.38.0 ### Patch Changes - Updated dependencies [0f24cc3] - Updated dependencies [bdeb2bf] - Updated dependencies [a0cba02] - Updated dependencies [83ede7e] - Updated dependencies [18d4a23] - chat@4.38.0 - @chat-adapter/shared@4.38.0 ## @chat-adapter/linear@4.38.0 ### Patch Changes - Updated dependencies [0f24cc3] - Updated dependencies [bdeb2bf] - Updated dependencies [a0cba02] - Updated dependencies [83ede7e] - Updated dependencies [18d4a23] - chat@4.38.0 - @chat-adapter/shared@4.38.0 ## @chat-adapter/shared@4.38.0 ### Patch Changes - Updated dependencies [0f24cc3] - Updated dependencies [bdeb2bf] - Updated dependencies [a0cba02] - Updated dependencies [83ede7e] - Updated dependencies [18d4a23] - chat@4.38.0 ## @chat-adapter/slack@4.38.0 ### Patch Changes - Updated dependencies [0f24cc3] - Updated dependencies [bdeb2bf] - Updated dependencies [a0cba02] - Updated dependencies [83ede7e] - Updated dependencies [18d4a23] - chat@4.38.0 - @chat-adapter/shared@4.38.0 ## @chat-adapter/teams@4.38.0 ### Patch Changes - Updated dependencies [0f24cc3] - Updated dependencies [bdeb2bf] - Updated dependencies [a0cba02] - Updated dependencies [83ede7e] - Updated dependencies [18d4a23] - chat@4.38.0 - @chat-adapter/shared@4.38.0 ## @chat-adapter/twilio@4.38.0 ### Patch Changes - Updated dependencies [0f24cc3] - Updated dependencies [bdeb2bf] - Updated dependencies [a0cba02] - Updated dependencies [83ede7e] - Updated dependencies [18d4a23] - chat@4.38.0 - @chat-adapter/shared@4.38.0 ## @chat-adapter/web@4.38.0 ### Patch Changes - Updated dependencies [0f24cc3] - Updated dependencies [bdeb2bf] - Updated dependencies [a0cba02] - Updated dependencies [83ede7e] - Updated dependencies [18d4a23] - chat@4.38.0 - @chat-adapter/shared@4.38.0 ## @chat-adapter/state-ioredis@4.38.0 ### Patch Changes - Updated dependencies [0f24cc3] - Updated dependencies [bdeb2bf] - Updated dependencies [a0cba02] - Updated dependencies [83ede7e] - Updated dependencies [18d4a23] - chat@4.38.0 ## @chat-adapter/state-memory@4.38.0 ### Patch Changes - Updated dependencies [0f24cc3] - Updated dependencies [bdeb2bf] - Updated dependencies [a0cba02] - Updated dependencies [83ede7e] - Updated dependencies [18d4a23] - chat@4.38.0 ## @chat-adapter/state-pg@4.38.0 ### Patch Changes - Updated dependencies [0f24cc3] - Updated dependencies [bdeb2bf] - Updated dependencies [a0cba02] - Updated dependencies [83ede7e] - Updated dependencies [18d4a23] - chat@4.38.0 ## @chat-adapter/state-redis@4.38.0 ### Patch Changes - Updated dependencies [0f24cc3] - Updated dependencies [bdeb2bf] - Updated dependencies [a0cba02] - Updated dependencies [83ede7e] - Updated dependencies [18d4a23] - chat@4.38.0 ## @chat-adapter/tests@4.38.0 Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
create-chat-sdk
npm package:
create-chat-sdk
Scaffold a webhook-only Chat SDK bot project from the command line.
Documentation: chat-sdk.dev/docs/create-chat-sdk · Guides: vercel.com/kb/chat-sdk
Usage
npm create chat-sdk@latest my-bot
With another package manager:
pnpm create chat-sdk@latest my-bot
yarn create chat-sdk my-bot
bunx create-chat-sdk@latest my-bot
Non-interactive mode
Pass platform and state adapters with --adapter:
npm create chat-sdk@latest -- my-bot --adapter slack redis -y
With npm, the -- separator is required — npm consumes flags before it instead of forwarding them to the CLI. pnpm create and yarn create forward flags without it.
Adapter values come from the chat/adapters catalog. The default interactive prompt lists official adapters. Pass --vendor to list vendor-official adapters instead. For automation and coding agents, pass official or vendor adapter slugs directly with --adapter. Community adapters are not scaffolded.
When the CLI detects a coding agent environment, it announces the detection and automatically runs in non-interactive mode. Pass at least one platform adapter with --adapter; the state adapter defaults to memory. If no project name is provided, the default name is my-bot. Pass --interactive to force prompts.
Vercel Connect
The Slack, Discord, GitHub, Linear, Notion, and Telegram adapters can use Vercel Connect for outbound credentials. Pass --connect, or choose Vercel Connect at the interactive auth-mode prompt:
npm create chat-sdk@latest -- my-bot --adapter slack --connect -y
The generated bot spreads the matching helper from @vercel/connect/chat into the adapter factory, adds @vercel/connect to dependencies, and lists each connector UID (such as SLACK_CONNECTOR) in .env.example. Native webhook verification secrets are retained for adapters such as Notion and Telegram.
Options
Usage: create-chat-sdk [options] [name]
Arguments:
name name of the project
Options:
-d, --description <text> project description
--adapter <values...> platform or state adapters to include
--vendor list vendor-official adapters in the interactive
prompt
--connect authenticate Slack, Discord, GitHub, Linear,
Notion, and Telegram adapters with Vercel Connect
--pm <manager> package manager to use (npm, yarn, pnpm, bun)
-y, --yes skip prompts and accept defaults
--interactive always prompt, even when a coding agent
environment is detected
-f, --force overwrite generated files in an existing directory
-s, --skip-install skip dependency installation
--no-git skip git repository initialization
-q, --quiet suppress non-essential output
-h, --help display help for command
Color output follows the NO_COLOR standard — set NO_COLOR=1 to disable colors.
Generated project
The generated project is a minimal Next.js API app:
src/lib/bot.ts— generated Chat SDK bot configurationsrc/app/api/webhooks/[platform]/route.ts— dynamic webhook routesrc/app/api/chat/route.ts— generated only when the Web adapter is selected.env.example— generated from selected adapter env specsnext.config.ts— generated server config and externalspackage.json— generated adapter, peer, and extra dependencies.chat-sdk.json— generated file ownership used by safe--forcereruns
The template does not include pages, layouts, or a client UI.
Development
pnpm --filter create-chat-sdk build
pnpm --filter create-chat-sdk typecheck
pnpm --filter create-chat-sdk test
AI Coding Agents
If you use an AI coding agent such as OpenAI Codex, Claude Code, or Cursor, install the Chat SDK skill so it knows the SDK APIs, adapter patterns, and project conventions before writing code.
npx skills add vercel/chat
The skill references bundled documentation in node_modules/chat/docs, plus adapter guides and starter templates in the published package.
You can also install the Vercel Plugin for a broader agent toolkit — it includes the Chat SDK skill alongside specialist agents, agent slash commands, and more:
npx plugins add vercel/vercel-plugin
The plugin is optional; the skill alone is enough to build with Chat SDK.
For agent-readable documentation, see chat-sdk.dev/llms.txt (page index) or chat-sdk.dev/llms-full.txt (full text).
Documentation
Full documentation is available at chat-sdk.dev/docs/create-chat-sdk.
- Getting Started — first steps with Chat SDK
- Platform Adapters — supported platform adapters
- State Adapters — persistence, locking, and dedupe options
- Adapters — full adapter catalog
License
MIT