Claude Thread Continuity MCP Server is a local, privacy-first MCP server designed to preserve Claude conversation context across sessions. It automatically saves project state during conversations when files are created or modified, when technical decisions are made, when milestones are reached, and as a fallback every 10 messages, then restores the full context when a new thread starts. On load, it reconstitutes decisions, modified files, progress, and summaries so users can resume exactly where they left off. The 1.1 update adds the Anti-Fragmentation System, which uses fuzzy name matching with a 70% similarity threshold to detect similar projects, issues validation warnings with consolidation suggestions, and offers a force override for genuine differences, all with configurable thresholds. Data is stored locally at ~/.claude_states/ with per-project directories containing current_state.json and backup files (rotating to keep the last five). Exposed commands include save_project_state, load_project_state, list_active_projects, get_project_summary, validate_project_name, and auto_save_checkpoint, supporting zero-configuration operation and multi-project workflows.