mcp-construe is a FastMCP server that loads personal context from Obsidian vaults using YAML frontmatter filtering, enabling AI-friendly management of notes for conversations. It supports bidirectional knowledge management by allowing both reading from and writing to the Obsidian vault, ensuring notes stay synchronized with AI context. To handle long results, it implements smart chunking that splits large result sets into chunks constrained by a 95k character limit, while preserving complete files within each chunk. Filtering is flexible, supporting searches by frontmatter properties and tags with AND/OR logic. A robust File Protection System safeguards file writes: new files and overwrites require a specific frontmatter property value, preventing changes outside designated contexts. Frontmatter generation and parsing are integrated to ensure reliable indexing. The server exposes tools for context loading, matching, frontmatter indexing, and chunk management, plus a file creation function. Configuration is via a config.yaml with vault_path, default_context, and protection settings, and installation steps are provided.