fix: tool description ko -> en

Author: seocylucky

packages/mcp/src/tools/analysis/authorWorkPatternTool.ts

@@ -7,17 +7,17 @@ export function registerAuthorWorkPatternTool(server: McpServer) {
   server.registerTool(
     "author_work_pattern",
     {
-      title: "Author별 작업량/변경유형 분석기",
+      title: "Author Work Pattern Analyzer",
       description:
-        "특정 author의 기간 내 작업량(Commits/LOC/Churn)과 커밋 타입(feat/fix/refactor/...) 분포를 Octokit으로 계산합니다.",
+        "Analyzes an author’s development activity within a given period to measure workload and commit patterns. Aggregates metrics such as commits, insertions, deletions, and churn, and classifies commit types to reveal focus areas.",
       inputSchema: {
-        repoPath: z.string().describe("GitHub repository path (owner/repo 또는 GitHub URL)"),
-        author: z.string().describe("로그인/이름/이메일 일부"),
-        branch: z.string().optional().describe("브랜치/커밋 SHA (기본: 기본 브랜치)"),
-        since: z.string().optional().describe('시작 시점 (예: "2025-09-01" 또는 "30d")'),
-        until: z.string().optional().describe("종료 시점 (미지정 시 현재)"),
-        locale: z.enum(["en", "ko"]).default("en").describe("응답 언어"),
-        chart: z.boolean().default(false).describe("HTML 차트 리포트 반환 여부"),
+        repoPath: z.string().describe("GitHub repository path (e.g: owner/repo or https://github.com/owner/repo)"),
+        author: z.string().describe("Author identifier (login, name, or partial email)"),
+        branch: z.string().optional().describe("Branch to analyze (default: main)"),
+        since: z.string().optional().describe("Analysis period start"),
+        until: z.string().optional().describe("Analysis period end (defaults to now if unspecified)"),
+        locale: z.enum(["en", "ko"]).default("en").describe("Response language (en: English, ko: Korean)"),
+        chart: z.boolean().default(false).describe("Return HTML chart (true)"),
       },
     },