The reaction handler now receives the conversation `thread` and an
update-capable `messageRef` for the reacted message — the same surface an
`onClick` gets via `ctx.thread`/`ctx.message.ref`. A reaction can now post new
UI (`thread.post`), swap the message in place (`thread.update(messageRef, …)`),
run the agent, or block on a human choice (`thread.awaitChoice`, HITL).
- bot-ui: `MessageReaction` gains `thread` and `messageRef`.
- platform-adapter: `IncomingReaction` gains an optional adapter-provided
`messageRef` (engine falls back to `{ id: messageId }`).
- create-bot: threads `thread` + `messageRef` into both the global
`ReactionEvent` and the per-message handler.
- Slack/Discord/Telegram reaction decoders emit a platform-specific,
update-capable `messageRef` (channel+ts / channelId+id / chatId+messageId).
Type the bot UI surface and broaden the cross-platform component vocabulary,
adding only capabilities that more than one adapter can express.
- bot-ui: type the `Thread` interface's `ui` params (`post`/`update`/
`awaitChoice`/`postEphemeral`) as `Renderable` instead of `unknown`, so JSX
is checked at the call site and the `{ raw }` escape hatch is explicit.
- `<Message onReaction>`: per-message reaction callback `(emoji, { added, user,
rawEmoji, messageId })`. Stripped from the IR before it reaches the adapter,
routed from reaction ingress by message id. Durable on the same terms as a
component `onClick` — a `{ component, props }` snapshot is persisted and the
component is re-rendered to re-derive the handler after a restart; inline
handlers route in-process only.
- `Button.url` link buttons — Slack, Discord, Teams, Telegram.
- `Field.label` — typed (Discord and Telegram already consumed it untyped);
newly rendered on Slack.
- `Select.multi` multi-select — Slack (`multi_static_select` in an input block
+ `selected_options` decode), Discord (min/max values + `component` bounds
decode), Teams (`isMultiSelect`); Telegram/WhatsApp degrade to single-select.
Slack-only capabilities (Button.confirm, Image.title, Input label/initialValue/
required, Select.initialValue) were intentionally left out.
addReaction/removeReaction resolved the channel from messageRef.channelId only,
unlike Slack and Telegram which fall back to the target channel. The shipped
example reacts with `{ id }` (no channelId) — the channel is meant to come from
the thread's reply target — so on Discord fetchSendable("") threw, the call
returned { ok: false }, and the 👀/✅/⚠️ acks silently never fired (contradicting
the example's "works on Slack, Discord, and Telegram alike" claim).
Fall back to the target channel when the reacted ref carries no channelId, for
parity with the other two adapters. Adds a regression test.
Repairs TypeScript check-types across the monorepo and adds a CI gate so
regressions are caught going forward:
- core: bundler module resolution and strict-mode fixes
- sdk-js: bundler module resolution; keep codegen, formatter, packaging working
- react-core: fixes across components, hooks, and tests
- react-native: restore catch binding referenced by TypeError cause
- runtime: repair check-types and bound AI SDK schema inference
- web-inspector: nodenext import extensions, export Anchor
- remaining packages and node example: assorted check-types repairs
- deps: add missing type-only devDependencies
- license context driven from /info licenseStatus
- ci: run check-types in the static quality workflow
Squashed from 12 commits for a single, easily-revertable change.
Add capability-gated surface methods across the bot packages so one handler
degrades gracefully per platform:
- thread.react / thread.unreact — emoji reactions (Slack, Discord, Telegram)
- thread.postEphemeral — only-you messages with a required DM fallback
- openModal (interaction/command-scoped) — structured forms (Slack rich,
Discord text-only), omitted on surfaces with no live interaction trigger
Spans @copilotkit/bot-ui, bot, bot-slack, bot-discord, bot-telegram with
per-adapter capability flags. Discord: open modals from slash-command
interactions, and never clear registered commands on an empty publish.
Alem Tuzlak