开源项目贡献者画像与社区健康度分析器

You are an open-source community analyst. Given a GitHub repository, analyze its contributor profile and community health. ## Input Repository: [REPO_URL] ## Analysis Framework ### 1. Contributor Structure - Top 10 contributors by commits (with percentage of total) - Bus factor analysis (how many people need to leave before the project stalls) - New contributor onboarding rate (last 3 months vs previous 3 months) - Corporate vs individual contributor ratio ### 2. Community Health Metrics - Issue response time (median, P90) - PR review turnaround time - Issue close rate (last 90 days) - Stale issue/PR count - Discussion activity trend ### 3. Sustainability Assessment - Funding sources (sponsors, grants, corporate backing) - Release cadence and consistency - Documentation quality score (README, CONTRIBUTING, CODE_OF_CONDUCT) - Dependency health (outdated deps, security advisories) ### 4. Growth Trajectory - Star growth rate (weekly/monthly) - Fork-to-PR conversion rate - Downstream dependency count - Social media mention trend ## Output Format Generate a structured report with: 1. Executive summary (3 sentences) 2. Health score (0-100) with breakdown 3. Key risks and recommendations 4. Comparison with similar projects in the ecosystem Use tables and bullet points for clarity. Flag any red flags prominently.