import { ErrorCode, McpError } from '@modelcontextprotocol/sdk/types.js';
import { getLinearClient } from '../../utils/linear-client.js';
import { defineTool } from '../shared/tool-definition.js';
import { z } from 'zod';
import { mapCommentToOutput } from './shared.js';
// CommentCreateSchema is now defined locally
const CommentCreateSchema = {
issueId: z.string().describe('The UUID of the issue to add the comment to'),
body: z.string().describe('The content of the comment in Markdown'),
};
export const createCommentTool = defineTool({
name: 'create_comment',
description: 'Create a comment on a Linear issue by ID',
inputSchema: CommentCreateSchema,
handler: async ({ issueId, body }) => {
const linearClient = getLinearClient();
const issue = await linearClient.issue(issueId);
if (!issue) {
throw new McpError(ErrorCode.InvalidParams, `Issue with ID '${issueId}' not found.`);
}
const commentPayload = await linearClient.createComment({ issueId, body });
const newComment = await commentPayload.comment;
if (!newComment)
throw new McpError(
ErrorCode.InternalError,
`Failed to create comment or retrieve details. Sync ID: ${commentPayload.lastSyncId}`,
);
return {
content: [
{
type: 'text',
text: JSON.stringify(mapCommentToOutput(newComment)),
},
],
};
},
});
