/second-brain
Set up and operate a file-based second brain — a knowledge vault that every Claude Code session reads on start and writes back to before it ends, so context compounds across sessions instead of evaporating. Use "second-brain setup" to bootstrap a new vault (folder structure,
$ npx -y skills add josherau/claude-operating-core --skill second-brain --agent claude-codeHow it fires
How this skill gets triggered: by you, by Claude, or both.
- Fires itselfAuto-invocation. Claude auto-loads it when your prompt matches the work.
- You can call itInvoke it directly when you want it.
- Slash command
/second-brain
Context preview
The summary Claude sees to decide when to auto-load this skill.
Set up and operate a file-based second brain — a knowledge vault that every Claude Code session reads on start and writes back to before it ends, so context compounds across sessions instead of evaporating. Use "second-brain setup" to bootstrap a new vault (folder structure,
Quality gates for Claude Code. An agent should never grade its own work, outbound content should be pretested before it costs you money, research should be grounded in more than one perspective, and the reasoning behind a hard solve should outlive the session
Other skills on operating-core.
- /extract-approach
Reasoning recorder — fires automatically after cracking a HARD problem (multiple failed attempts, non-obvious insight, judgment call between viable options, or an invented quality bar). Captures HOW the problem was solved — problem shape, dead ends, the turning point, the
Open skill - /focus-group
Synthetic audience pretesting (Justin Brooke "predictive wear" method). Run ANY outbound content — ads, emails, sales pages, newsletters, social posts, offers — through a per-business panel of AI persona dossiers BEFORE it ships. Panel critiques → copywriter rewrites 3 variants
Open skill - /review-panel
Use when any substantive work product has been generated — copy, emails, documents, proposals, plans, code, designs, skills, newsletters — and is about to be delivered, shipped, marked done, or given a quality verdict. Also use when the user asks for a review or critique of
Open skill - /sales-council
Expert sales council with 7 advisors (Cialdini, Hormozi, Rackham, Voss, Klaff, Schwartz, Currier) for pricing, persuasion, negotiation, copywriting, pitch strategies, and virality/word-of-mouth.
Open skill - /storm-research
Use when researching any topic, question, market, company, technology, or decision — before writing reports or proposals, making business or investment decisions, preparing for negotiations, interviews, or presentations, or learning a new field. This is the default research
Open skill - /vault-gardener
Recurring maintenance pass for a second-brain vault — link hygiene, naming, metadata/tags, Inbox filing, dedupe, learnings-index sync, index-note freshness. Run daily as a scheduled agent (or weekly by hand). Keeps recall precise as the vault grows; without gardening, a
Open skill