fix(slack): default unresolved channel limits

Author: TheodoreSpeaks

apps/sim/tools/slack/list_channels.test.ts

@@ -48,6 +48,15 @@ describe('Slack list channels', () => {
     )
   })
 
+  it('uses the default limit for unresolved optional workflow values', () => {
+    expect(requestUrl({ ...BASE_PARAMS, limit: null as never }).searchParams.get('limit')).toBe(
+      '100'
+    )
+    expect(requestUrl({ ...BASE_PARAMS, limit: ' ' as never }).searchParams.get('limit')).toBe(
+      '100'
+    )
+  })
+
   it('preserves the documented type and participant fields for mixed conversations', async () => {
     const result = await slackListChannelsTool.transformResponse!(
       Response.json({

apps/sim/tools/slack/list_channels.ts

@@ -70,7 +70,9 @@ function resolveBooleanParam(value: unknown, label: string, defaultValue: boolea
 }
 
 function resolveConversationLimit(value: unknown): number {
-  if (value === undefined) return 100
+  if (value === undefined || value === null || (typeof value === 'string' && value.trim() === '')) {
+    return 100
+  }
   const limit = Number(value)
   if (!Number.isInteger(limit) || limit < 1 || limit > 200) {
     throw new Error('Channel limit must be an integer between 1 and 200')