Restore Slack local file upload parity with CVE-era local media allowlist enforcement by threading `mediaLocalRoots` through the Slack send call chain.
- pass `ctx.mediaLocalRoots` from Slack channel action adapter into `handleSlackAction`
- add and forward `mediaLocalRoots` in Slack action context/send path
- pass `mediaLocalRoots` into `sendMessageSlack` for upload allowlist enforcement
- add changelog entry with attribution for this behavior fix
Co-authored-by: 2233admin <1497479966@qq.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: Tak Hoffman <781889+Takhoffman@users.noreply.github.com>
Synthesize runtime state transition fixes for compaction tool-use integrity and long-running handler backpressure.
Sources: #33630, #33583
Co-authored-by: Kevin Shenghui <shenghuikevin@gmail.com>
Co-authored-by: Theo Tarr <theodore@tarr.com>
## Overview
This PR enables external channel plugins (loaded via Plugin SDK) to access
advanced runtime features like AI response dispatching, which were previously
only available to built-in channels.
## Changes
### src/gateway/server-channels.ts
- Import PluginRuntime type
- Add optional channelRuntime parameter to ChannelManagerOptions
- Pass channelRuntime to channel startAccount calls via conditional spread
- Ensures backward compatibility (field is optional)
### src/gateway/server.impl.ts
- Import createPluginRuntime from plugins/runtime
- Create and pass channelRuntime to channel manager
### src/channels/plugins/types.adapters.ts
- Import PluginRuntime type
- Add comprehensive documentation for channelRuntime field
- Document available features, use cases, and examples
- Improve type safety (use imported PluginRuntime type vs inline import)
## Benefits
External channel plugins can now:
- Generate AI-powered responses using dispatchReplyWithBufferedBlockDispatcher
- Access routing, text processing, and session management utilities
- Use command authorization and group policy resolution
- Maintain feature parity with built-in channels
## Backward Compatibility
- channelRuntime field is optional in ChannelGatewayContext
- Conditional spread ensures it's only passed when explicitly provided
- Existing channels without channelRuntime support continue to work unchanged
- No breaking changes to channel plugin API
## Testing
- Email channel plugin successfully uses channelRuntime for AI responses
- All existing built-in channels (slack, discord, telegram, etc.) work unchanged
- Gateway loads and runs without errors when channelRuntime is provided
Signal reactions required an explicit messageId parameter, unlike
Telegram which already fell back to toolContext.currentMessageId.
This made agent-initiated reactions fail on Signal because the
inbound message ID was available in tool context but never used.
- Destructure toolContext in Signal action handler
- Fall back to toolContext.currentMessageId when messageId omitted
- Update reaction schema descriptions (not Telegram-specific)
- Add tests for fallback and missing-messageId rejection
Closes#17651
Forum channels that require tags fail with "A tag is required" when
creating threads because there was no way to pass tag IDs. Add
appliedTags parameter to the thread-create action so forum posts can
include required tags from the channel's available_tags list.
* feat(slack): add download-file action for on-demand file attachment access
Adds a new `download-file` message tool action that allows the agent to
download Slack file attachments by file ID on demand. This is a prerequisite
for accessing images posted in thread history, where file attachments are
not automatically resolved.
Changes:
- Add `files` field to `SlackMessageSummary` type so file IDs are
visible in message read results
- Add `downloadSlackFile()` to fetch a file by ID via `files.info`
and resolve it through the existing `resolveSlackMedia()` pipeline
- Register `download-file` in `CHANNEL_MESSAGE_ACTION_NAMES`,
`MESSAGE_ACTION_TARGET_MODE`, and `listSlackMessageActions`
- Add `downloadFile` dispatch case in `handleSlackAction`
- Wire agent-facing `download-file` → internal `downloadFile` in
`handleSlackMessageAction`
Closes#24681
* style: fix formatting in slack-actions and actions
* test(slack): cover download-file action path
---------
Co-authored-by: Tak Hoffman <781889+Takhoffman@users.noreply.github.com>
* fix(slack): use SLACK_USER_TOKEN when connecting to Slack (closes#26480)
* test(slack): fix account fixture typing for user token source
---------
Co-authored-by: Tak Hoffman <781889+Takhoffman@users.noreply.github.com>
* Telegram: soft-fail reactions and fallback to inbound message id
* Telegram: soft-fail missing reaction message id
* Update CHANGELOG.md
---------
Co-authored-by: Vincent Koc <vincentkoc@ieee.org>
* Config UI: add tag filters and complete schema help/labels
* Config UI: finalize tags/help polish and unblock test suite
* Protocol: regenerate Swift gateway models
