Second Brain

Keeps a markdown knowledge base consistent - frontmatter on every note, controlled tags, links between related notes and entities. Use whenever creating or editing notes in a knowledge base, and when asked to clean up, normalize, or reorganize notes. Reads the knowledge base's conventions.md as the authority.

Processes and routes files from a second-brain knowledge base's inbox folder (e.g. _inbox/) into their proper homes per the base's conventions.md. Use when asked to check, clean, process, sort, or organize the knowledge-base inbox. Categorizes by content analysis, moves what's clear, asks about what isn't, never deletes.

Captures durable learnings into a second-brain knowledge base (a folder with a conventions.md or KB-declaring CLAUDE.md) when conditions warrant - a reusable insight, a framework crystallizing, a constraint discovered, a decision trail completed. Triggers on "save this to my notes/knowledge base", "file that under", "worth keeping", or the natural pause at the end of substantive work where a real learning emerged. Only operates when a knowledge base exists; not for process chatter, debugging logs, or tactical one-offs.

Manages daily notes in a second-brain markdown knowledge base (a folder with a conventions.md or KB-declaring CLAUDE.md) - finding, creating, reading, and updating them, including task carryover with provenance. Trigger on "my daily note", "create today's daily note", "carry over my tasks", "close out the day" when working in such a knowledge base.

Initializes a plain-markdown knowledge base Claude can maintain - folder structure, a conventions file, and a CLAUDE.md so every future session knows the rules. Use when the user wants to start a second brain, notes vault, or knowledge base, or wants Claude to take over maintaining an existing folder of notes. Works with Obsidian or any markdown editor.