feat(slack): added get message by timestamp and get thread tool (#2803)

* feat(slack): added get message tool

* added get thread

apps/docs/content/docs/en/tools/a2a.mdx

@@ -208,8 +208,3 @@ Delete the push notification webhook configuration for a task.
 | `success` | boolean | Whether deletion was successful |
 
 
-
-## Notes
-
-- Category: `tools`
-- Type: `a2a`

apps/docs/content/docs/en/tools/lemlist.mdx

@@ -49,8 +49,7 @@ Retrieves lead information by email address or lead ID.
 | Parameter | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
 | `apiKey` | string | Yes | Lemlist API key |
-| `email` | string | No | Lead email address \(use either email or id\) |
-| `id` | string | No | Lead ID \(use either email or id\) |
+| `leadIdentifier` | string | Yes | Lead email address or lead ID |
 
 #### Output
 

apps/docs/content/docs/en/tools/slack.mdx

@@ -124,6 +124,45 @@ Read the latest messages from Slack channels. Retrieve conversation history with
 | --------- | ---- | ----------- |
 | `messages` | array | Array of message objects from the channel |
 
+### `slack_get_message`
+
+Retrieve a specific message by its timestamp. Useful for getting a thread parent message.
+
+#### Input
+
+| Parameter | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `authMethod` | string | No | Authentication method: oauth or bot_token |
+| `botToken` | string | No | Bot token for Custom Bot |
+| `channel` | string | Yes | Slack channel ID \(e.g., C1234567890\) |
+| `timestamp` | string | Yes | Message timestamp to retrieve \(e.g., 1405894322.002768\) |
+
+#### Output
+
+| Parameter | Type | Description |
+| --------- | ---- | ----------- |
+| `message` | object | The retrieved message object |
+
+### `slack_get_thread`
+
+Retrieve an entire thread including the parent message and all replies. Useful for getting full conversation context.
+
+#### Input
+
+| Parameter | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `authMethod` | string | No | Authentication method: oauth or bot_token |
+| `botToken` | string | No | Bot token for Custom Bot |
+| `channel` | string | Yes | Slack channel ID \(e.g., C1234567890\) |
+| `threadTs` | string | Yes | Thread timestamp \(thread_ts\) to retrieve \(e.g., 1405894322.002768\) |
+| `limit` | number | No | Maximum number of messages to return \(default: 100, max: 200\) |
+
+#### Output
+
+| Parameter | Type | Description |
+| --------- | ---- | ----------- |
+| `parentMessage` | object | The thread parent message |
+
 ### `slack_list_channels`
 
 List all channels in a Slack workspace. Returns public and private channels the bot has access to.