Add reaction tools for issues and pull requests

README.md

@@ -841,9 +841,11 @@ The following sets of tools are available:
 
 - **add_issue_comment** - Add comment to issue or pull request
   - **Required OAuth Scopes**: `repo`
-  - `body`: Comment content (string, required)
-  - `issue_number`: Issue number to comment on (number, required)
+  - `body`: Comment content. Required unless reaction is provided. (string, optional)
+  - `comment_id`: The numeric ID of the issue or pull request comment to react to. Use this for reactions to comments; omit it to react to the issue or pull request itself. (number, optional)
+  - `issue_number`: Issue or pull request number to comment on or react to. Required when body is provided, or when reaction targets an issue or pull request. (number, optional)
   - `owner`: Repository owner (string, required)
+  - `reaction`: Emoji reaction to add. Required unless body is provided. (string, optional)
   - `repo`: Repository name (string, required)
 
 - **get_label** - Get a specific label from a repository
@@ -1098,10 +1100,11 @@ The following sets of tools are available:
 
 - **add_reply_to_pull_request_comment** - Add reply to pull request comment
   - **Required OAuth Scopes**: `repo`
-  - `body`: The text of the reply (string, required)
-  - `commentId`: The ID of the comment to reply to (number, required)
+  - `body`: The text of the reply. Required unless reaction is provided. (string, optional)
+  - `commentId`: The numeric ID of the pull request review comment to reply or react to. Use the number from a #discussion_r... anchor, not the GraphQL thread node ID (PRRT_...). (number, required)
   - `owner`: Repository owner (string, required)
-  - `pullNumber`: Pull request number (number, required)
+  - `pullNumber`: Pull request number. Required when body is provided. (number, optional)
+  - `reaction`: Emoji reaction to add. Required unless body is provided. (string, optional)
   - `repo`: Repository name (string, required)
 
 - **create_pull_request** - Open new pull request

docs/feature-flags.md

@@ -98,6 +98,20 @@ runtime behavior (such as output formatting) won't appear here.
 
 ### `issues_granular`
 
+- **add_issue_comment_reaction** - Add Reaction to Issue or Pull Request Comment
+  - **Required OAuth Scopes**: `repo`
+  - `comment_id`: The issue or pull request comment ID (number, required)
+  - `content`: The emoji reaction type (string, required)
+  - `owner`: Repository owner (username or organization) (string, required)
+  - `repo`: Repository name (string, required)
+
+- **add_issue_reaction** - Add Reaction to Issue or Pull Request
+  - **Required OAuth Scopes**: `repo`
+  - `content`: The emoji reaction type (string, required)
+  - `issue_number`: The issue number (number, required)
+  - `owner`: Repository owner (username or organization) (string, required)
+  - `repo`: Repository name (string, required)
+
 - **add_sub_issue** - Add Sub-Issue
   - **Required OAuth Scopes**: `repo`
   - `issue_number`: The parent issue number (number, required)
@@ -204,6 +218,13 @@ runtime behavior (such as output formatting) won't appear here.
   - `startSide`: The start side of a multi-line comment (optional) (string, optional)
   - `subjectType`: The subject type of the comment (string, required)
 
+- **add_pull_request_review_comment_reaction** - Add Pull Request Review Comment Reaction
+  - **Required OAuth Scopes**: `repo`
+  - `comment_id`: The numeric pull request review comment ID. Use the number from a #discussion_r... anchor, not the GraphQL thread node ID (PRRT_...). (number, required)
+  - `content`: The emoji reaction type (string, required)
+  - `owner`: Repository owner (username or organization) (string, required)
+  - `repo`: Repository name (string, required)
+
 - **create_pull_request_review** - Create Pull Request Review
   - **Required OAuth Scopes**: `repo`
   - `body`: The review body text (optional) (string, optional)

pkg/github/__toolsnaps__/add_issue_comment.snap

@@ -2,31 +2,48 @@
   "annotations": {
     "title": "Add comment to issue or pull request"
   },
-  "description": "Add a comment to a specific issue in a GitHub repository. Use this tool to add comments to pull requests as well (in this case pass pull request number as issue_number), but only if user is not asking specifically to add review comments.",
+  "description": "Add a comment and/or reaction to a specific issue or issue comment in a GitHub repository. Use this tool with pull requests as well (in this case pass pull request number as issue_number), but only if user is not asking specifically to add or react to review comments. At least one of body or reaction is required.",
   "inputSchema": {
     "properties": {
       "body": {
-        "description": "Comment content",
+        "description": "Comment content. Required unless reaction is provided.",
         "type": "string"
       },
+      "comment_id": {
+        "description": "The numeric ID of the issue or pull request comment to react to. Use this for reactions to comments; omit it to react to the issue or pull request itself.",
+        "minimum": 1,
+        "type": "number"
+      },
       "issue_number": {
-        "description": "Issue number to comment on",
+        "description": "Issue or pull request number to comment on or react to. Required when body is provided, or when reaction targets an issue or pull request.",
         "type": "number"
       },
       "owner": {
         "description": "Repository owner",
         "type": "string"
       },
+      "reaction": {
+        "description": "Emoji reaction to add. Required unless body is provided.",
+        "enum": [
+          "+1",
+          "-1",
+          "laugh",
+          "confused",
+          "heart",
+          "hooray",
+          "rocket",
+          "eyes"
+        ],
+        "type": "string"
+      },
       "repo": {
         "description": "Repository name",
         "type": "string"
       }
     },
     "required": [
       "owner",
-      "repo",
-      "issue_number",
-      "body"
+      "repo"
     ],
     "type": "object"
   },

pkg/github/__toolsnaps__/add_issue_comment_reaction.snap

@@ -0,0 +1,47 @@
+{
+  "annotations": {
+    "destructiveHint": false,
+    "openWorldHint": true,
+    "title": "Add Reaction to Issue or Pull Request Comment"
+  },
+  "description": "Add a reaction to an issue or pull request comment.",
+  "inputSchema": {
+    "properties": {
+      "comment_id": {
+        "description": "The issue or pull request comment ID",
+        "minimum": 1,
+        "type": "number"
+      },
+      "content": {
+        "description": "The emoji reaction type",
+        "enum": [
+          "+1",
+          "-1",
+          "laugh",
+          "confused",
+          "heart",
+          "hooray",
+          "rocket",
+          "eyes"
+        ],
+        "type": "string"
+      },
+      "owner": {
+        "description": "Repository owner (username or organization)",
+        "type": "string"
+      },
+      "repo": {
+        "description": "Repository name",
+        "type": "string"
+      }
+    },
+    "required": [
+      "owner",
+      "repo",
+      "comment_id",
+      "content"
+    ],
+    "type": "object"
+  },
+  "name": "add_issue_comment_reaction"
+}

pkg/github/__toolsnaps__/add_issue_reaction.snap

@@ -0,0 +1,47 @@
+{
+  "annotations": {
+    "destructiveHint": false,
+    "openWorldHint": true,
+    "title": "Add Reaction to Issue or Pull Request"
+  },
+  "description": "Add a reaction to an issue or pull request.",
+  "inputSchema": {
+    "properties": {
+      "content": {
+        "description": "The emoji reaction type",
+        "enum": [
+          "+1",
+          "-1",
+          "laugh",
+          "confused",
+          "heart",
+          "hooray",
+          "rocket",
+          "eyes"
+        ],
+        "type": "string"
+      },
+      "issue_number": {
+        "description": "The issue number",
+        "minimum": 1,
+        "type": "number"
+      },
+      "owner": {
+        "description": "Repository owner (username or organization)",
+        "type": "string"
+      },
+      "repo": {
+        "description": "Repository name",
+        "type": "string"
+      }
+    },
+    "required": [
+      "owner",
+      "repo",
+      "issue_number",
+      "content"
+    ],
+    "type": "object"
+  },
+  "name": "add_issue_reaction"
+}

pkg/github/__toolsnaps__/add_pull_request_review_comment_reaction.snap

@@ -0,0 +1,47 @@
+{
+  "annotations": {
+    "destructiveHint": false,
+    "openWorldHint": true,
+    "title": "Add Pull Request Review Comment Reaction"
+  },
+  "description": "Add a reaction to a pull request review comment.",
+  "inputSchema": {
+    "properties": {
+      "comment_id": {
+        "description": "The numeric pull request review comment ID. Use the number from a #discussion_r... anchor, not the GraphQL thread node ID (PRRT_...).",
+        "minimum": 1,
+        "type": "number"
+      },
+      "content": {
+        "description": "The emoji reaction type",
+        "enum": [
+          "+1",
+          "-1",
+          "laugh",
+          "confused",
+          "heart",
+          "hooray",
+          "rocket",
+          "eyes"
+        ],
+        "type": "string"
+      },
+      "owner": {
+        "description": "Repository owner (username or organization)",
+        "type": "string"
+      },
+      "repo": {
+        "description": "Repository name",
+        "type": "string"
+      }
+    },
+    "required": [
+      "owner",
+      "repo",
+      "comment_id",
+      "content"
+    ],
+    "type": "object"
+  },
+  "name": "add_pull_request_review_comment_reaction"
+}

pkg/github/__toolsnaps__/add_reply_to_pull_request_comment.snap

@@ -2,25 +2,39 @@
   "annotations": {
     "title": "Add reply to pull request comment"
   },
-  "description": "Add a reply to an existing pull request comment. This creates a new comment that is linked as a reply to the specified comment.",
+  "description": "Add a reply and/or reaction to an existing pull request comment. This can create a new comment linked as a reply to the specified comment, add an emoji reaction to the specified comment, or do both. At least one of body or reaction is required.",
   "inputSchema": {
     "properties": {
       "body": {
-        "description": "The text of the reply",
+        "description": "The text of the reply. Required unless reaction is provided.",
         "type": "string"
       },
       "commentId": {
-        "description": "The ID of the comment to reply to",
+        "description": "The numeric ID of the pull request review comment to reply or react to. Use the number from a #discussion_r... anchor, not the GraphQL thread node ID (PRRT_...).",
         "type": "number"
       },
       "owner": {
         "description": "Repository owner",
         "type": "string"
       },
       "pullNumber": {
-        "description": "Pull request number",
+        "description": "Pull request number. Required when body is provided.",
         "type": "number"
       },
+      "reaction": {
+        "description": "Emoji reaction to add. Required unless body is provided.",
+        "enum": [
+          "+1",
+          "-1",
+          "laugh",
+          "confused",
+          "heart",
+          "hooray",
+          "rocket",
+          "eyes"
+        ],
+        "type": "string"
+      },
       "repo": {
         "description": "Repository name",
         "type": "string"
@@ -29,9 +43,7 @@
     "required": [
       "owner",
       "repo",
-      "pullNumber",
-      "commentId",
-      "body"
+      "commentId"
     ],
     "type": "object"
   },