diff --git a/javascript/sentry-conventions/src/attributes.ts b/javascript/sentry-conventions/src/attributes.ts
index 6e68f75d..853f52ea 100644
--- a/javascript/sentry-conventions/src/attributes.ts
+++ b/javascript/sentry-conventions/src/attributes.ts
@@ -3811,6 +3811,7 @@ export type GEN_AI_TOOL_OUTPUT_TYPE = string;
  *
  * Attribute defined in OTEL: Yes
  *
+ * @deprecated  - The gen_ai.tool.type attribute is deprecated and should no longer be set.
  * @example "function"
  */
 export const GEN_AI_TOOL_TYPE = 'gen_ai.tool.type';
@@ -13529,6 +13530,9 @@ export const ATTRIBUTE_METADATA: Record<AttributeName, AttributeMetadata> = {
     },
     isInOtel: true,
     example: 'function',
+    deprecation: {
+      reason: 'The gen_ai.tool.type attribute is deprecated and should no longer be set.',
+    },
     changelog: [{ version: '0.1.0', prs: [62, 127] }],
   },
   [GEN_AI_USAGE_COMPLETION_TOKENS]: {
diff --git a/model/attributes/gen_ai/gen_ai__tool__type.json b/model/attributes/gen_ai/gen_ai__tool__type.json
index 2d10c916..f9318212 100644
--- a/model/attributes/gen_ai/gen_ai__tool__type.json
+++ b/model/attributes/gen_ai/gen_ai__tool__type.json
@@ -7,6 +7,10 @@
   },
   "is_in_otel": true,
   "example": "function",
+  "deprecation": {
+    "_status": null,
+    "reason": "The gen_ai.tool.type attribute is deprecated and should no longer be set."
+  },
   "changelog": [
     {
       "version": "0.1.0",
diff --git a/python/src/sentry_conventions/attributes.py b/python/src/sentry_conventions/attributes.py
index a1602e9b..745c1f2b 100644
--- a/python/src/sentry_conventions/attributes.py
+++ b/python/src/sentry_conventions/attributes.py
@@ -165,6 +165,7 @@ class _AttributeNamesMeta(type):
         "GEN_AI_TOOL_INPUT",
         "GEN_AI_TOOL_MESSAGE",
         "GEN_AI_TOOL_OUTPUT",
+        "GEN_AI_TOOL_TYPE",
         "GEN_AI_USAGE_COMPLETION_TOKENS",
         "GEN_AI_USAGE_PROMPT_TOKENS",
         "HARDWARECONCURRENCY",
@@ -2260,6 +2261,7 @@ class ATTRIBUTE_NAMES(metaclass=_AttributeNamesMeta):
     Type: str
     Contains PII: maybe
     Defined in OTEL: Yes
+    DEPRECATED: No replacement at this time - The gen_ai.tool.type attribute is deprecated and should no longer be set.
     Example: "function"
     """
 
@@ -7889,6 +7891,9 @@ class ATTRIBUTE_NAMES(metaclass=_AttributeNamesMeta):
         pii=PiiInfo(isPii=IsPii.MAYBE),
         is_in_otel=True,
         example="function",
+        deprecation=DeprecationInfo(
+            reason="The gen_ai.tool.type attribute is deprecated and should no longer be set."
+        ),
         changelog=[
             ChangelogEntry(version="0.1.0", prs=[62, 127]),
         ],
diff --git a/shared/deprecated_attributes.json b/shared/deprecated_attributes.json
index 9e75c710..90725af3 100644
--- a/shared/deprecated_attributes.json
+++ b/shared/deprecated_attributes.json
@@ -1757,6 +1757,26 @@
         }
       ]
     },
+    {
+      "key": "gen_ai.tool.type",
+      "brief": "The type of tool being used.",
+      "type": "string",
+      "pii": {
+        "key": "maybe"
+      },
+      "is_in_otel": true,
+      "example": "function",
+      "deprecation": {
+        "_status": null,
+        "reason": "The gen_ai.tool.type attribute is deprecated and should no longer be set."
+      },
+      "changelog": [
+        {
+          "version": "0.1.0",
+          "prs": [62, 127]
+        }
+      ]
+    },
     {
       "key": "gen_ai.usage.completion_tokens",
       "brief": "The number of tokens used in the GenAI response (completion).",