Add proactive threading support#523
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Pull request overview
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Adds proactive threading support to the Apps SDK by introducing a stable way to construct threaded conversation IDs and a new proactive app.reply() API that can target channel threads.
Changes:
- Added
toThreadId()+supportsThreading()utilities for threaded conversation ID handling. - Added overloaded
App.reply()for proactive thread sends (threaded in supported scopes, flat otherwise). - Added a new
examples/threadingsample and clarifiedcontext.send()/context.reply()doc comments.
Reviewed changes
Copilot reviewed 11 out of 12 changed files in this pull request and generated 5 comments.
Show a summary per file
| File | Description |
|---|---|
| packages/apps/src/utils/thread.ts | Introduces thread ID construction + threading support detection. |
| packages/apps/src/utils/thread.spec.ts | Adds unit tests for toThreadId(). |
| packages/apps/src/utils/index.ts | Re-exports toThreadId() from utils barrel. |
| packages/apps/src/index.ts | Exposes toThreadId() on the package public API. |
| packages/apps/src/contexts/activity.ts | Updates doc comments to clarify send vs reply behavior. |
| packages/apps/src/app.ts | Adds proactive reply() overloads and threading guard usage. |
| packages/apps/src/app.spec.ts | Adds tests for new App.reply() behavior. |
| examples/threading/* | Adds a runnable example demonstrating threading usage. |
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Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>
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Threads is coming to DMs too, so supportsThreads will likely evolve soon!
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Summary
app.reply(conversationId, messageId, activity)for proactive thread sends — constructs threaded conversation ID viatoThreadedConversationId()for channels and 1:1 chats that support threadingtoThreadedConversationId()helper exposed for advanced scenariossupportsThreading()internal guard (channels:@thread.tacv2/@thread.skype, 1:1:@unq.gbl.spaces)context.send()andcontext.reply()doc comments to clarify threading vs quoting behaviortest reply,test send,test proactive,test manualTest plan
toThreadedConversationId()(9 tests),supportsThreading()(5 tests), andapp.reply()(6 tests)🤖 Generated with Claude Code