Garry Tan System Map

GBrain Skillpack JTBD Map

The 43-skill brain workflow mapped to user jobs and personas.

gstack = methodgbrain = continuitygbrain-evals = proofYC = network

GBrain Skillpack JTBD Map

Product Frame

gbrain's skills turn a database and MCP server into a knowledge-work operating system. The 43 local SKILL.md files define how agents should ingest, query, enrich, publish, maintain, research, and operationalize memory.

The pattern is "thin harness, fat skills": deterministic TypeScript handles storage/search/sync, while skill files encode workflows, quality bars, routing, and judgment.

Skill Families

1. Always-On Brain Behavior

Skills: signal-detector, brain-ops.

Job: make every conversation improve the brain without forcing the user to remember capture hygiene.

Product spec:

2. Setup, Health, and Operations

Skills: install, setup, skillpack-check, smoke-test, maintain, testing, migrate, frontmatter-guard, citation-fixer.

Job: keep the brain running, coherent, and trustworthy.

Product spec:

3. Ingestion and Capture

Skills: ingest, idea-ingest, media-ingest, voice-note-ingest, meeting-ingestion, article-enrichment, archive-crawler, webhook-transforms, cold-start.

Job: convert messy real-world inputs into structured, searchable brain pages.

Product spec:

4. Research and Synthesis

Skills: book-mirror, strategic-reading, concept-synthesis, perplexity-research, academic-verify, data-research, cross-modal-review.

Job: make research personal, evidence-backed, and action-oriented.

Product spec:

5. Retrieval and Knowledge Shaping

Skills: query, enrich, repo-architecture, functional-area-resolver, soul-audit.

Job: retrieve and improve knowledge without flattening it into generic summaries.

Product spec:

6. Daily Workflow and Publishing

Skills: daily-task-manager, daily-task-prep, briefing, cron-scheduler, reports, publish, brain-pdf.

Job: turn memory into daily execution.

Product spec:

7. Agent and Skill Meta-System

Skills: minion-orchestrator, ask-user, skill-creator, skillify.

Job: let the brain create or coordinate new workflows.

Product spec:

Persona Map

PersonaHires gbrain to...Most Important Skills
Founder/operatorremember people, deals, meetings, decisions, and tasksdaily-task-prep, meeting-ingestion, enrich, briefing
Research-heavy builderconnect books, articles, and web research to existing contextbook-mirror, strategic-reading, perplexity-research
AI coding operatormake repo/code lookup durable and symbol-awarerepo-architecture, query, setup, sync via gstack
Personal knowledge workercapture voice notes, ideas, and archives without filing choresvoice-note-ingest, idea-ingest, archive-crawler
Team/admin operatorkeep shared memory healthy and securemaintain, citation-fixer, skillpack-check, migrate

Key Product Insight

gbrain does not win by being a better notes app. It wins by making memory operational. The skillpack says: when an agent knows something, it should know where that fact lives, how confident it is, how it connects, and when to write the next update.