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feat(cli): add Slack socket mode support (#11245)

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* feat(cli): add Slack socket mode support

Add socket mode as an alternative to webhook mode for Slack
connector, allowing connections without a public URL.

- Introduce `--connection` flag to select webhook or socket mode
- Add `--app-token` option for socket mode authentication
- Make signing secret and base URL conditional on webhook mode
- Add `parseSlackConnectionMode` with validation and tests
- Update CLI platform definition to support hybrid connection type
- Update README docs with socket mode usage examples

* use base-url and remove connection flag

* isSocketMode
This commit is contained in:
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2026-06-03 12:00:57 -07:00
committed by GitHub
parent 76af785fa6
commit 423fde4828
14 changed files with 450 additions and 101 deletions
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docs/cli/connectors.mdx
+20 -5
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@@ -22,7 +22,7 @@ cline connect
| Platform | Direct Command | Required Credentials |
|----------|---------------|---------------------|
| Telegram | `cline connect telegram` | Bot token |
| Slack | `cline connect slack` | Bot token, signing secret, base URL |
| Slack | `cline connect slack` | Bot token plus webhook signing secret/base URL or socket app token |
| Discord | `cline connect discord` | Application ID, bot token, public key, base URL |
| Google Chat | `cline connect gchat` | Service account credentials JSON, base URL |
| WhatsApp | `cline connect whatsapp` | Phone number ID, access token, app secret, verify token, base URL |
@@ -75,13 +75,28 @@ The `--hook-command` receives each incoming message with sender info via stdin.
## Slack
Requires a bot token, signing secret, and public base URL.
Slack supports webhook mode and socket mode. Each Slack thread maps to an agent session, so the agent maintains conversation context within a thread.
Webhook mode requires a bot token, signing secret, and public base URL:
```bash
cline connect slack --token <BOT-TOKEN> --signing-secret <SECRET> --base-url <URL>
cline connect slack \
--bot-token <BOT-TOKEN> \
--signing-secret <SECRET> \
--base-url <URL>
```
Each Slack thread maps to an agent session, so the agent maintains conversation context within a thread.
Configure the Slack app's event subscription and interactivity request URLs to `<URL>/api/webhooks/slack`.
Socket mode requires a bot token and an app-level token with the `connections:write` scope:
```bash
cline connect slack \
--bot-token <BOT-TOKEN> \
--app-token <APP-LEVEL-TOKEN>
```
Enable Socket Mode in the Slack app. Socket mode does not need a public request URL and is single-workspace only.
## Discord
@@ -257,7 +272,7 @@ Multiple connectors can run simultaneously. They all share the same hub:
cline connect telegram -k $TELEGRAM_TOKEN
# Terminal 2
cline connect slack --token $SLACK_TOKEN --signing-secret $SECRET --base-url $URL
cline connect slack --bot-token $SLACK_TOKEN --signing-secret $SECRET --base-url $URL
```
Connectors require the hub. Start it with `cline hub start` if it doesn't auto-start.