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/github@4.33.0 ### Minor Changes -6750d59: Add Vercel Connect support to the GitHub adapter. A new `installationToken` config option (string or resolver) supplies installation access tokens directly, skipping the GitHub App private-key JWT exchange, and an optional `webhookVerifier` verifies inbound webhooks (e.g. Connect trigger-forwarded requests via a Vercel OIDC token) in place of the GitHub webhook secret. Pair with `connectGitHubAdapter()` from `@vercel/connect/chat`. `botUserId` now also auto-detects from the `GITHUB_BOT_USER_ID` env var, and the adapter learns its bot user id from the first comment it posts. In Connect mode (where the bot user id can't be auto-detected from an installation token) set `botUserId` / `GITHUB_BOT_USER_ID` to enable self-message detection and avoid the adapter replying to its own comments. Note: the `connectGitHubAdapter()` helper ships in `@vercel/connect` — release this adapter together with (or after) the `@vercel/connect` version that adds the `@vercel/connect/chat` subpath so the documented helper resolves. ### Patch Changes - Updated dependencies [3abdc69] - Updated dependencies [0b63791] - Updated dependencies [0c761f1] - Updated dependencies [ef2542c] - Updated dependencies [24a04d5] - Updated dependencies [d4c52ca] - Updated dependencies [076fe5d] - chat@4.33.0 - @chat-adapter/shared@4.33.0 ## @chat-adapter/linear@4.33.0 ### Minor Changes -4115c94: Add Vercel Connect support to the Linear adapter. The `accessToken` config option now accepts a resolver (`() => string | Promise<string>`) in addition to a string, so tokens can be sourced from Vercel Connect at runtime, and a new optional `webhookVerifier` verifies inbound webhooks (e.g. Connect trigger-forwarded requests via a Vercel OIDC token) in place of the Linear webhook secret. Pair with `connectLinearAdapter()` from `@vercel/connect/chat`. Connect-mode outbound calls outside webhook handling are supported via `withInstallation(organizationId, fn)`. Note: the `connectLinearAdapter()` helper ships in `@vercel/connect` — release this adapter together with (or after) the `@vercel/connect` version that adds the `@vercel/connect/chat` subpath so the documented helper resolves. ### Patch Changes - Updated dependencies [3abdc69] - Updated dependencies [0b63791] - Updated dependencies [0c761f1] - Updated dependencies [ef2542c] - Updated dependencies [24a04d5] - Updated dependencies [d4c52ca] - Updated dependencies [076fe5d] - chat@4.33.0 - @chat-adapter/shared@4.33.0 ## @chat-adapter/shared@4.33.0 ### Minor Changes -d4c52ca: add `replaceBareMentions`, a context-aware bare-`@mention` resolver that skips code spans, URLs, schemeless hosts, and existing angle-bracket tokens before handing each real `@name` to a platform-specific replacer ### Patch Changes - Updated dependencies [3abdc69] - Updated dependencies [0b63791] - Updated dependencies [0c761f1] - Updated dependencies [ef2542c] - Updated dependencies [24a04d5] - Updated dependencies [076fe5d] - chat@4.33.0 ## @chat-adapter/x@4.33.0 ### Minor Changes -ef2542c: add X (Twitter) adapter: reply to public mentions, send and receive direct messages, post and edit from the bot account, and like posts, using the X API v2 with OAuth 2.0 and managed token refresh ### Patch Changes - Updated dependencies [3abdc69] - Updated dependencies [0b63791] - Updated dependencies [0c761f1] - Updated dependencies [ef2542c] - Updated dependencies [24a04d5] - Updated dependencies [d4c52ca] - Updated dependencies [076fe5d] - chat@4.33.0 - @chat-adapter/shared@4.33.0 ## chat@4.33.0 ### Minor Changes -ef2542c: add X (Twitter) adapter: reply to public mentions, send and receive direct messages, post and edit from the bot account, and like posts, using the X API v2 with OAuth 2.0 and managed token refresh ### Patch Changes -3abdc69: docs(adapters): add Cloudflare Agents as a vendor-official state adapter (`agents/chat-sdk`) to the catalog and docs listing. It is hidden from the create-chat-sdk CLI (Worker/Durable Objects runtime), and the interactive state picker now filters out CLI-incompatible state adapters. -0b63791: Raise the default message dedupe TTL from 5 to 10 minutes so it outlives the longest platform redelivery window. Slack's Events API retries up to ~5 minutes after the original delivery — exactly at the old TTL boundary, where a retried event could miss the expired dedupe entry from its first processing and be handled twice. Configurable behavior is unchanged (`dedupeTtlMs` still overrides). -0c761f1: docs(adapters): add Dial as a vendor-official adapter (`@getdial/chat-sdk-adapter`) to the catalog, docs listing, and CLI scaffold spec -24a04d5: docs(adapters): add Photon as a vendor-official adapter (`@photon-ai/chat-adapter-imessage`) to the catalog, docs listing, and CLI scaffold spec -076fe5d: preserve skipped mention routing for debounce and message patterns ## create-chat-sdk@0.2.0 ### Minor Changes -ba375ce: Add Vercel Connect support to the scaffolder. Pass `--connect` (or choose **Vercel Connect** at the new interactive auth-mode prompt) to authenticate the Slack, GitHub, and Linear adapters with a Vercel Connect connector instead of stored provider secrets. The generated `src/lib/bot.ts` spreads the matching helper from `@vercel/connect/chat` into the adapter factory, `@vercel/connect` is added to dependencies, and `.env.example` lists each connector UID (for example `SLACK_CONNECTOR`) plus the recommended `GITHUB_BOT_USER_ID` for GitHub, in place of native secrets. -ef2542c: add X (Twitter) adapter: reply to public mentions, send and receive direct messages, post and edit from the bot account, and like posts, using the X API v2 with OAuth 2.0 and managed token refresh ### Patch Changes -3abdc69: docs(adapters): add Cloudflare Agents as a vendor-official state adapter (`agents/chat-sdk`) to the catalog and docs listing. It is hidden from the create-chat-sdk CLI (Worker/Durable Objects runtime), and the interactive state picker now filters out CLI-incompatible state adapters. -0c761f1: docs(adapters): add Dial as a vendor-official adapter (`@getdial/chat-sdk-adapter`) to the catalog, docs listing, and CLI scaffold spec -24a04d5: docs(adapters): add Photon as a vendor-official adapter (`@photon-ai/chat-adapter-imessage`) to the catalog, docs listing, and CLI scaffold spec ## @chat-adapter/tests@4.33.0 ### Minor Changes -e7a396a: Add two shared behavioral test contracts for adapter authors: - `threadIdContract` — verifies an adapter's thread-id codec round-trips (`decode(encode(x))`), prefixes ids with the adapter name, matches any pinned encoded strings, and (optionally) distinguishes DM from non-DM threads. - `selfMessageContract` — verifies an adapter dispatches inbound messages from other users (to `processMessage` by default) but ignores messages the bot authored itself, so it never replies to itself. Requires the matchers to be registered via `setupFiles: ["@chat-adapter/tests/setup"]`. -a7fb1bc: Add `connectWebhookContract`, a shared Vitest suite for verifying an adapter's Vercel Connect webhook verification. Given a small per-adapter descriptor (how to build the adapter in Connect mode and craft an inbound webhook), it asserts the behavior every Connect-capable adapter shares: a `webhookVerifier` replaces the native signature/secret check and gates inbound requests — accept (`200`) on a truthy result, reject (`401`) on a thrown error or falsy result — and is invoked with the request and raw body. Connect-capable adapters can opt in with ~10 lines. ## @chat-adapter/discord@4.33.0 ### Patch Changes -d4c52ca: use the shared `replaceBareMentions` scanner for `@mention` conversion so email addresses, `@handles` inside URLs, and mentions inside code spans are no longer mangled into Discord mentions, and already-formatted `<@id>` tokens are not double-wrapped -6de4572: Implement `rehydrateAttachment` on the Discord adapter. Serialization strips an attachment's `fetchData` closure (queue/debounce strategies), and consumers rebuild it via `adapter.rehydrateAttachment`. The Discord adapter did not implement the method, so downstream consumers could not download inbound Discord attachments after deserialization. The Discord CDN `url` survives serialization, so `fetchData` is now rebuilt to fetch that url (preserving its signed query params), matching how the other adapters implement the method. - Updated dependencies [3abdc69] - Updated dependencies [0b63791] - Updated dependencies [0c761f1] - Updated dependencies [ef2542c] - Updated dependencies [24a04d5] - Updated dependencies [d4c52ca] - Updated dependencies [076fe5d] - chat@4.33.0 - @chat-adapter/shared@4.33.0 ## @chat-adapter/gchat@4.33.0 ### Patch Changes - Updated dependencies [3abdc69] - Updated dependencies [0b63791] - Updated dependencies [0c761f1] - Updated dependencies [ef2542c] - Updated dependencies [24a04d5] - Updated dependencies [d4c52ca] - Updated dependencies [076fe5d] - chat@4.33.0 - @chat-adapter/shared@4.33.0 ## @chat-adapter/messenger@4.33.0 ### Patch Changes - Updated dependencies [3abdc69] - Updated dependencies [0b63791] - Updated dependencies [0c761f1] - Updated dependencies [ef2542c] - Updated dependencies [24a04d5] - Updated dependencies [d4c52ca] - Updated dependencies [076fe5d] - chat@4.33.0 - @chat-adapter/shared@4.33.0 ## @chat-adapter/slack@4.33.0 ### Patch Changes -0b63791: Process Slack Socket Mode retry envelopes instead of discarding them. Slack redelivers an event (immediately, +1 min, +5 min) when a prior delivery wasn't acknowledged — including events sent while the app had no open socket, e.g. during a restart or a routine connection refresh. The adapter previously acked and dropped every envelope with `retry_num > 0`, so such events were permanently lost even though Slack redelivered them. Retries are now routed like first deliveries (logged at info with `retry_num`/`retry_reason`); `Chat.processMessage`'s message-id dedupe drops true duplicates. - Updated dependencies [3abdc69] - Updated dependencies [0b63791] - Updated dependencies [0c761f1] - Updated dependencies [ef2542c] - Updated dependencies [24a04d5] - Updated dependencies [d4c52ca] - Updated dependencies [076fe5d] - chat@4.33.0 - @chat-adapter/shared@4.33.0 ## @chat-adapter/teams@4.33.0 ### Patch Changes -d4c52ca: use the shared `replaceBareMentions` scanner for `@mention` conversion so email addresses, `@handles` inside URLs, and mentions inside code spans are no longer mangled into `<at>` mention tags - Updated dependencies [3abdc69] - Updated dependencies [0b63791] - Updated dependencies [0c761f1] - Updated dependencies [ef2542c] - Updated dependencies [24a04d5] - Updated dependencies [d4c52ca] - Updated dependencies [076fe5d] - chat@4.33.0 - @chat-adapter/shared@4.33.0 ## @chat-adapter/telegram@4.33.0 ### Patch Changes - Updated dependencies [3abdc69] - Updated dependencies [0b63791] - Updated dependencies [0c761f1] - Updated dependencies [ef2542c] - Updated dependencies [24a04d5] - Updated dependencies [d4c52ca] - Updated dependencies [076fe5d] - chat@4.33.0 - @chat-adapter/shared@4.33.0 ## @chat-adapter/twilio@4.33.0 ### Patch Changes - Updated dependencies [3abdc69] - Updated dependencies [0b63791] - Updated dependencies [0c761f1] - Updated dependencies [ef2542c] - Updated dependencies [24a04d5] - Updated dependencies [d4c52ca] - Updated dependencies [076fe5d] - chat@4.33.0 - @chat-adapter/shared@4.33.0 ## @chat-adapter/web@4.33.0 ### Patch Changes - Updated dependencies [3abdc69] - Updated dependencies [0b63791] - Updated dependencies [0c761f1] - Updated dependencies [ef2542c] - Updated dependencies [24a04d5] - Updated dependencies [d4c52ca] - Updated dependencies [076fe5d] - chat@4.33.0 - @chat-adapter/shared@4.33.0 ## @chat-adapter/whatsapp@4.33.0 ### Patch Changes - Updated dependencies [3abdc69] - Updated dependencies [0b63791] - Updated dependencies [0c761f1] - Updated dependencies [ef2542c] - Updated dependencies [24a04d5] - Updated dependencies [d4c52ca] - Updated dependencies [076fe5d] - chat@4.33.0 - @chat-adapter/shared@4.33.0 ## @chat-adapter/state-ioredis@4.33.0 ### Patch Changes - Updated dependencies [3abdc69] - Updated dependencies [0b63791] - Updated dependencies [0c761f1] - Updated dependencies [ef2542c] - Updated dependencies [24a04d5] - Updated dependencies [076fe5d] - chat@4.33.0 ## @chat-adapter/state-memory@4.33.0 ### Patch Changes - Updated dependencies [3abdc69] - Updated dependencies [0b63791] - Updated dependencies [0c761f1] - Updated dependencies [ef2542c] - Updated dependencies [24a04d5] - Updated dependencies [076fe5d] - chat@4.33.0 ## @chat-adapter/state-pg@4.33.0 ### Patch Changes - Updated dependencies [3abdc69] - Updated dependencies [0b63791] - Updated dependencies [0c761f1] - Updated dependencies [ef2542c] - Updated dependencies [24a04d5] - Updated dependencies [076fe5d] - chat@4.33.0 ## @chat-adapter/state-redis@4.33.0 ### Patch Changes - Updated dependencies [3abdc69] - Updated dependencies [0b63791] - Updated dependencies [0c761f1] - Updated dependencies [ef2542c] - Updated dependencies [24a04d5] - Updated dependencies [076fe5d] - chat@4.33.0 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, GitHub, and Linear adapters can authenticate with Vercel Connect instead of stored provider secrets. 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 instead of native secrets.
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, GitHub, and Linear 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