diff --git a/apps/sim/app/api/tools/jira/update/route.ts b/apps/sim/app/api/tools/jira/update/route.ts
index 8ad96ba3d0c..2c0f5dcb4ab 100644
--- a/apps/sim/app/api/tools/jira/update/route.ts
+++ b/apps/sim/app/api/tools/jira/update/route.ts
@@ -3,7 +3,7 @@ import { type NextRequest, NextResponse } from 'next/server'
 import { z } from 'zod'
 import { checkSessionOrInternalAuth } from '@/lib/auth/hybrid'
 import { validateJiraCloudId, validateJiraIssueKey } from '@/lib/core/security/input-validation'
-import { getJiraCloudId, parseAtlassianErrorMessage } from '@/tools/jira/utils'
+import { getJiraCloudId, parseAtlassianErrorMessage, toAdf } from '@/tools/jira/utils'
 
 export const dynamic = 'force-dynamic'
 
@@ -15,14 +15,14 @@ const jiraUpdateSchema = z.object({
   issueKey: z.string().min(1, 'Issue key is required'),
   summary: z.string().optional(),
   title: z.string().optional(),
-  description: z.string().optional(),
+  description: z.union([z.string(), z.record(z.unknown())]).optional(),
   priority: z.string().optional(),
   assignee: z.string().optional(),
   labels: z.array(z.string()).optional(),
   components: z.array(z.string()).optional(),
   duedate: z.string().optional(),
   fixVersions: z.array(z.string()).optional(),
-  environment: z.string().optional(),
+  environment: z.union([z.string(), z.record(z.unknown())]).optional(),
   customFieldId: z.string().optional(),
   customFieldValue: z.string().optional(),
   notifyUsers: z.boolean().optional(),
@@ -91,21 +91,7 @@ export async function PUT(request: NextRequest) {
     }
 
     if (description !== undefined && description !== null && description !== '') {
-      fields.description = {
-        type: 'doc',
-        version: 1,
-        content: [
-          {
-            type: 'paragraph',
-            content: [
-              {
-                type: 'text',
-                text: description,
-              },
-            ],
-          },
-        ],
-      }
+      fields.description = toAdf(description)
     }
 
     if (priority !== undefined && priority !== null && priority !== '') {
@@ -136,21 +122,7 @@ export async function PUT(request: NextRequest) {
     }
 
     if (environment !== undefined && environment !== null && environment !== '') {
-      fields.environment = {
-        type: 'doc',
-        version: 1,
-        content: [
-          {
-            type: 'paragraph',
-            content: [
-              {
-                type: 'text',
-                text: environment,
-              },
-            ],
-          },
-        ],
-      }
+      fields.environment = toAdf(environment)
     }
 
     if (
diff --git a/apps/sim/app/api/tools/jira/write/route.ts b/apps/sim/app/api/tools/jira/write/route.ts
index 6ecb49553c6..d63689b267f 100644
--- a/apps/sim/app/api/tools/jira/write/route.ts
+++ b/apps/sim/app/api/tools/jira/write/route.ts
@@ -2,7 +2,7 @@ import { createLogger } from '@sim/logger'
 import { type NextRequest, NextResponse } from 'next/server'
 import { checkSessionOrInternalAuth } from '@/lib/auth/hybrid'
 import { validateAlphanumericId, validateJiraCloudId } from '@/lib/core/security/input-validation'
-import { getJiraCloudId, parseAtlassianErrorMessage } from '@/tools/jira/utils'
+import { getJiraCloudId, parseAtlassianErrorMessage, toAdf } from '@/tools/jira/utils'
 
 export const dynamic = 'force-dynamic'
 
@@ -85,21 +85,7 @@ export async function POST(request: NextRequest) {
     }
 
     if (description !== undefined && description !== null && description !== '') {
-      fields.description = {
-        type: 'doc',
-        version: 1,
-        content: [
-          {
-            type: 'paragraph',
-            content: [
-              {
-                type: 'text',
-                text: description,
-              },
-            ],
-          },
-        ],
-      }
+      fields.description = toAdf(description)
     }
 
     if (parent !== undefined && parent !== null && parent !== '') {
@@ -144,21 +130,7 @@ export async function POST(request: NextRequest) {
     }
 
     if (environment !== undefined && environment !== null && environment !== '') {
-      fields.environment = {
-        type: 'doc',
-        version: 1,
-        content: [
-          {
-            type: 'paragraph',
-            content: [
-              {
-                type: 'text',
-                text: environment,
-              },
-            ],
-          },
-        ],
-      }
+      fields.environment = toAdf(environment)
     }
 
     if (
diff --git a/apps/sim/tools/jira/update.ts b/apps/sim/tools/jira/update.ts
index 75f53fc8765..47e8e26693a 100644
--- a/apps/sim/tools/jira/update.ts
+++ b/apps/sim/tools/jira/update.ts
@@ -42,7 +42,8 @@ export const jiraUpdateTool: ToolConfig<JiraUpdateParams, JiraUpdateResponse> =
       type: 'string',
       required: false,
       visibility: 'user-or-llm',
-      description: 'New description for the issue',
+      description:
+        'New description for the issue. Accepts plain text (auto-wrapped in ADF) or a raw ADF document object',
     },
     priority: {
       type: 'string',
diff --git a/apps/sim/tools/jira/utils.ts b/apps/sim/tools/jira/utils.ts
index d29f9c792b7..02f5a28b0b9 100644
--- a/apps/sim/tools/jira/utils.ts
+++ b/apps/sim/tools/jira/utils.ts
@@ -5,6 +5,51 @@ const logger = createLogger('JiraUtils')
 
 const MAX_ATTACHMENT_SIZE = 50 * 1024 * 1024
 
+/**
+ * Converts a value to ADF format. If the value is already an ADF document object,
+ * it is returned as-is. If it is a plain string, it is wrapped in a single-paragraph ADF doc.
+ */
+export function toAdf(value: string | Record<string, unknown>): Record<string, unknown> {
+  if (typeof value === 'object') {
+    if (value.type === 'doc') {
+      return value
+    }
+    if (value.type && Array.isArray(value.content)) {
+      return { type: 'doc', version: 1, content: [value] }
+    }
+  }
+  if (typeof value === 'string') {
+    try {
+      const parsed = JSON.parse(value)
+      if (typeof parsed === 'object' && parsed !== null && parsed.type === 'doc') {
+        return parsed
+      }
+      if (
+        typeof parsed === 'object' &&
+        parsed !== null &&
+        parsed.type &&
+        Array.isArray(parsed.content)
+      ) {
+        return { type: 'doc', version: 1, content: [parsed] }
+      }
+    } catch {
+      // Not JSON — treat as plain text below
+    }
+  }
+  return {
+    type: 'doc',
+    version: 1,
+    content: [
+      {
+        type: 'paragraph',
+        content: [
+          { type: 'text', text: typeof value === 'string' ? value : JSON.stringify(value) },
+        ],
+      },
+    ],
+  }
+}
+
 /**
  * Extracts plain text from Atlassian Document Format (ADF) content.
  * Returns null if content is falsy.
diff --git a/apps/sim/tools/jira/write.ts b/apps/sim/tools/jira/write.ts
index 42a5f9391c5..db1fac87f86 100644
--- a/apps/sim/tools/jira/write.ts
+++ b/apps/sim/tools/jira/write.ts
@@ -42,7 +42,8 @@ export const jiraWriteTool: ToolConfig<JiraWriteParams, JiraWriteResponse> = {
       type: 'string',
       required: false,
       visibility: 'user-or-llm',
-      description: 'Description for the issue',
+      description:
+        'Description for the issue. Accepts plain text (auto-wrapped in ADF) or a raw ADF document object',
     },
     priority: {
       type: 'string',