feat(slack): added get message by timestamp and get thread tool by waleedlatif1 · Pull Request #2803 · simstudioai/sim · GitHub
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feat(slack): added get message by timestamp and get thread tool #2803

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waleedlatif1 merged 2 commits into from
Jan 14, 2026
Merged

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

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ad0d250
feat(slack): added get message tool
waleedlatif1 Jan 14, 2026
65c16e1
added get thread
waleedlatif1 Jan 14, 2026
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30 changes: 19 additions & 11 deletions apps/docs/components/icons.tsx
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5 changes: 0 additions & 5 deletions apps/docs/content/docs/en/tools/a2a.mdx
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Original file line number Diff line number Diff line change
Expand Up @@ -208,8 +208,3 @@ Delete the push notification webhook configuration for a task.
| `success` | boolean | Whether deletion was successful |



## Notes

- Category: `tools`
- Type: `a2a`
3 changes: 1 addition & 2 deletions apps/docs/content/docs/en/tools/lemlist.mdx
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Original file line number Diff line number Diff line change
Expand Up @@ -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

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39 changes: 39 additions & 0 deletions apps/docs/content/docs/en/tools/slack.mdx
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Original file line number Diff line number Diff line change
Expand Up @@ -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.
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120 changes: 120 additions & 0 deletions apps/sim/blocks/blocks/slack.ts
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Expand Up @@ -26,6 +26,8 @@ export const SlackBlock: BlockConfig<SlackResponse> = {
{ label: 'Send Message', id: 'send' },
{ label: 'Create Canvas', id: 'canvas' },
{ label: 'Read Messages', id: 'read' },
{ label: 'Get Message', id: 'get_message' },
{ label: 'Get Thread', id: 'get_thread' },
{ label: 'List Channels', id: 'list_channels' },
{ label: 'List Channel Members', id: 'list_members' },
{ label: 'List Users', id: 'list_users' },
Expand Down Expand Up @@ -316,6 +318,68 @@ export const SlackBlock: BlockConfig<SlackResponse> = {
},
required: true,
},
// Get Message specific fields
{
id: 'getMessageTimestamp',
title: 'Message Timestamp',
type: 'short-input',
placeholder: 'Message timestamp (e.g., 1405894322.002768)',
condition: {
field: 'operation',
value: 'get_message',
},
required: true,
wandConfig: {
enabled: true,
prompt: `Extract or generate a Slack message timestamp from the user's input.
Slack message timestamps are in the format: XXXXXXXXXX.XXXXXX (seconds.microseconds since Unix epoch).
Examples:
- "1405894322.002768" -> 1405894322.002768 (already a valid timestamp)
- "thread_ts from the trigger" -> The user wants to reference a variable, output the original text
- A URL like "https://slack.com/archives/C123/p1405894322002768" -> Extract 1405894322.002768 (remove 'p' prefix, add decimal after 10th digit)

If the input looks like a reference to another block's output (contains < and >) or a variable, return it as-is.
Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
placeholder: 'Paste a Slack message URL or timestamp...',
generationType: 'timestamp',
},
},
// Get Thread specific fields
{
id: 'getThreadTimestamp',
title: 'Thread Timestamp',
type: 'short-input',
placeholder: 'Thread timestamp (thread_ts, e.g., 1405894322.002768)',
condition: {
field: 'operation',
value: 'get_thread',
},
required: true,
wandConfig: {
enabled: true,
prompt: `Extract or generate a Slack thread timestamp from the user's input.
Slack thread timestamps (thread_ts) are in the format: XXXXXXXXXX.XXXXXX (seconds.microseconds since Unix epoch).
Examples:
- "1405894322.002768" -> 1405894322.002768 (already a valid timestamp)
- "thread_ts from the trigger" -> The user wants to reference a variable, output the original text
- A URL like "https://slack.com/archives/C123/p1405894322002768" -> Extract 1405894322.002768 (remove 'p' prefix, add decimal after 10th digit)

If the input looks like a reference to another block's output (contains < and >) or a variable, return it as-is.
Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
placeholder: 'Paste a Slack thread URL or thread_ts...',
generationType: 'timestamp',
},
},
{
id: 'threadLimit',
title: 'Message Limit',
type: 'short-input',
placeholder: '100',
condition: {
field: 'operation',
value: 'get_thread',
},
},
{
id: 'oldest',
title: 'Oldest Timestamp',
Expand Down Expand Up @@ -430,6 +494,8 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
'slack_message',
'slack_canvas',
'slack_message_reader',
'slack_get_message',
'slack_get_thread',
'slack_list_channels',
'slack_list_members',
'slack_list_users',
Expand All @@ -448,6 +514,10 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
return 'slack_canvas'
case 'read':
return 'slack_message_reader'
case 'get_message':
return 'slack_get_message'
case 'get_thread':
return 'slack_get_thread'
case 'list_channels':
return 'slack_list_channels'
case 'list_members':
Expand Down Expand Up @@ -498,6 +568,9 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
includeDeleted,
userLimit,
userId,
getMessageTimestamp,
getThreadTimestamp,
threadLimit,
...rest
} = params

Expand Down Expand Up @@ -574,6 +647,27 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
break
}

case 'get_message':
if (!getMessageTimestamp) {
throw new Error('Message timestamp is required for get message operation')
}
baseParams.timestamp = getMessageTimestamp
break

case 'get_thread': {
if (!getThreadTimestamp) {
throw new Error('Thread timestamp is required for get thread operation')
}
baseParams.threadTs = getThreadTimestamp
if (threadLimit) {
const parsedLimit = Number.parseInt(threadLimit, 10)
if (!Number.isNaN(parsedLimit) && parsedLimit > 0) {
baseParams.limit = Math.min(parsedLimit, 200)
}
}
break
}

case 'list_channels': {
baseParams.includePrivate = includePrivate !== 'false'
baseParams.excludeArchived = true
Expand Down Expand Up @@ -679,6 +773,14 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
userLimit: { type: 'string', description: 'Maximum number of users to return' },
// Get User inputs
userId: { type: 'string', description: 'User ID to look up' },
// Get Message inputs
getMessageTimestamp: { type: 'string', description: 'Message timestamp to retrieve' },
// Get Thread inputs
getThreadTimestamp: { type: 'string', description: 'Thread timestamp to retrieve' },
threadLimit: {
type: 'string',
description: 'Maximum number of messages to return from thread',
},
},
outputs: {
// slack_message outputs (send operation)
Expand Down Expand Up @@ -706,6 +808,24 @@ Return ONLY the timestamp string - no explanations, no quotes, no extra text.`,
'Array of message objects with comprehensive properties: text, user, timestamp, reactions, threads, files, attachments, blocks, stars, pins, and edit history',
},

// slack_get_thread outputs (get_thread operation)
parentMessage: {
type: 'json',
description: 'The thread parent message with all properties',
},
replies: {
type: 'json',
description: 'Array of reply messages in the thread (excluding the parent)',
},
replyCount: {
type: 'number',
description: 'Number of replies returned in this response',
},
hasMore: {
type: 'boolean',
description: 'Whether there are more messages in the thread',
},

// slack_list_channels outputs (list_channels operation)
channels: {
type: 'json',
Expand Down
4 changes: 4 additions & 0 deletions apps/sim/tools/registry.ts
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