diff --git a/src/repos.ts b/src/repos.ts
index c9ca187..db54ccf 100644
--- a/src/repos.ts
+++ b/src/repos.ts
@@ -151,7 +151,7 @@ const RepositoryTag = z.object({
         .array(
             z.object({
                 architecture: z.string().describe('The architecture of the tag'),
-                features: z.string().describe('The features of the tag'),
+                features: z.string().nullable().describe('The features of the tag'),
                 variant: z.string().optional().nullable().describe('The variant of the tag'),
                 digest: z.string().nullable().describe('image layer digest'),
                 layers: z
@@ -421,6 +421,12 @@ export class Repos extends Asset {
                             .describe(
                                 'The operating system to list tags from. If not provided, all operating systems will be listed.'
                             ),
+                        name: z
+                            .string()
+                            .optional()
+                            .describe(
+                                'Filter tags by name substring. Useful for resolving a partial git SHA (e.g. a short commit hash) to a full tag.'
+                            ),
                     }).shape,
                     outputSchema: repositoryTagPaginatedResponseSchema.shape,
                     annotations: {
@@ -526,6 +532,7 @@ export class Repos extends Asset {
         page_size,
         architecture,
         os,
+        name,
     }: {
         repository: string;
         namespace?: string;
@@ -533,6 +540,7 @@ export class Repos extends Asset {
         page_size?: number;
         architecture?: string;
         os?: string;
+        name?: string;
     }): Promise<CallToolResult> {
         if (!namespace) {
             namespace = 'library';
@@ -554,6 +562,9 @@ export class Repos extends Asset {
         if (os) {
             params.os = os;
         }
+        if (name) {
+            params.name = name;
+        }
         if (Object.keys(params).length > 0) {
             url += `?${new URLSearchParams(params).toString()}`;
         }
diff --git a/tools.json b/tools.json
index fe2c199..a348380 100644
--- a/tools.json
+++ b/tools.json
@@ -2326,6 +2326,10 @@
                     "os": {
                         "type": "string",
                         "description": "The operating system to list tags from. If not provided, all operating systems will be listed."
+                    },
+                    "name": {
+                        "type": "string",
+                        "description": "Filter tags by name substring. Useful for resolving a partial git SHA (e.g. a short commit hash) to a full tag."
                     }
                 },
                 "required": ["repository"],
@@ -2408,7 +2412,10 @@
                                                                                 "description": "The architecture of the tag"
                                                                             },
                                                                             "features": {
-                                                                                "type": "string",
+                                                                                "type": [
+                                                                                    "string",
+                                                                                    "null"
+                                                                                ],
                                                                                 "description": "The features of the tag"
                                                                             },
                                                                             "variant": {
@@ -2906,7 +2913,7 @@
                                                     "description": "The architecture of the tag"
                                                 },
                                                 "features": {
-                                                    "type": "string",
+                                                    "type": ["string", "null"],
                                                     "description": "The features of the tag"
                                                 },
                                                 "variant": {