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Updated 1w ago

by huytieu

COG-second-brain

Self-evolving second brain with 35 AI skills, 10 agents, and people CRM. Closed-loop harness: a V-model verification lifecycle where the worker never grades its own homework. Plus paired anti-slop design skills for marketing and product UI. Works with Claude Code, Cursor, Kiro, Gemini CLI, Codex.

  • Active — Updated in the last 14 days
  • Multi-agent — Targets three or more agents
Works with
  • Claude
  • Codex
  • Cursor
  • Gemini
View on GitHub (opens in a new tab)

1.3k GitHub stars (1,341)

+86 in 30 days

Stars gained per day · daily snapshots since Sep 26
Stars gained per day, Sep 26 to Nov 5: +119 in total; the busiest day was Sep 29 with +12 stars.Sep 27: +1 starsSep 28: +8 starsSep 29: +12 starsSep 30: +1 starsOct 1: 0 starsOct 2: +2 starsOct 3: +5 starsOct 4: +4 starsOct 5: +1 starsOct 6: −1 starsOct 7: +5 starsOct 8: +5 starsOct 9: +1 starsOct 10: +1 starsOct 11: +5 starsOct 12: +1 starsOct 13: +2 starsOct 14: +4 starsOct 15: +4 starsOct 16: 0 starsOct 17: +10 starsOct 18: +1 starsOct 19: +6 starsOct 20: +2 starsOct 21: +3 starsOct 22: +4 starsOct 23: +3 starsOct 24: +3 starsOct 25: +1 starsOct 26: +1 starsOct 27: +5 starsOct 28: +1 starsOct 29: +3 starsOct 30: +3 starsOct 31: 0 starsNov 1: 0 starsNov 2: +2 starsNov 3: +6 starsNov 4: +2 starsNov 5: +2 stars
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  • 30 skills (30 skills found in its SKILL.md files)
  • 164 forks (164 forks)
  • 1w ago last update (Last updated 1w ago)

Install

Skills CLI

npx skills add huytieu/COG-second-brain

Asks which skills and agents to install. Just one: npx skills add huytieu/COG-second-brain --skill auto-research — add -g for every project.

Claude Code

git clone https://github.com/huytieu/COG-second-braincp -r "COG-second-brain/skills/auto-research" ~/.claude/skills/

Copies the auto-research skill into ~/.claude/skills/ for every project (use .claude/skills/ for one project). Repeat for the other skills listed below.

Plugin

/plugin marketplace add huytieu/COG-second-brain

Run inside Claude Code if the repository ships a plugin marketplace, then pick plugins from /plugin.

Skills can run code on your machine — read the SKILL.md first.

What it does

In the author's own words, from each skill's SKILL.md — showing the first 30 of 129 files.

  • auto-research

    Deep strategic research engine — decomposes questions into parallel research threads, spawns multiple agents, and synthesizes into actionable strategic analysis

    skills/auto-research/SKILL.md on GitHub (opens in a new tab)

  • blog-publish

    Write and publish a post to your own static blog end to end: content checklist (embedded links, optional TL;DR), per-post ASCII art, an agent-readable markdown twin, deploy, and social distribution. Use when you say "write a blog post", "publish this to my blog", or "push this post to socials".

    skills/blog-publish/SKILL.md on GitHub (opens in a new tab)

  • braindump

    Quick capture of raw thoughts with intelligent domain classification and competitive intelligence extraction

    skills/braindump/SKILL.md on GitHub (opens in a new tab)

  • closed-loop

    Run one task through the V-model verification loop: CP-2 plan → CP-3 build → CP-3v component verify → CP-4 integration verify (full lane) → CP-5 acceptance. The worker never grades its own homework; evidence rows trace back to AC-n. Opt-in: invoke with /closed-loop or by asking for the closed loop, proper verification, or an evidence trail. Ordinary work does not run this.

    skills/closed-loop/SKILL.md on GitHub (opens in a new tab)

  • comprehensive-analysis

    Deep-dive 7-day analysis across all data sources for weekly reviews, board prep, and strategic planning

    skills/comprehensive-analysis/SKILL.md on GitHub (opens in a new tab)

  • content-factory

    Autonomous content pipeline - scout announcements in your field, triage by trend momentum and personal angle, produce posts/blogs/videos in your voice with ledger-based dedup, hard volume caps, and screenshot-verified publishing

    skills/content-factory/SKILL.md on GitHub (opens in a new tab)

  • create-user-story

    Create user stories with duplicate checking across any project tracker (Linear, GitHub Issues, Jira)

    skills/create-user-story/SKILL.md on GitHub (opens in a new tab)

  • daily-brief

    Generate personalized news intelligence with verified sources (7-day freshness requirement)

    skills/daily-brief/SKILL.md on GitHub (opens in a new tab)

  • daily-journal

    A passive daily work journal that Claude keeps FOR you so you never have to write it yourself. Append short entries after meaningful work (what was done, what you focused on, artifacts touched) to 01-daily/journal/YYYY-MM-DD.md. Run a guided reflection at night or in the morning. Use when you run /daily-journal, say "log this to my journal", "add to today's journal", "reflect on today/yesterday",…

    skills/daily-journal/SKILL.md on GitHub (opens in a new tab)

  • data-forms

    Pick the right way to represent a dataset so a reader gets the finding in three seconds — a catalog of 20+ chart and diagram forms with when-to-use and failure modes, plus the encoding decisions that make any of them readable (takeaway headline, direct labels, kill the axis, highlight-and-mute, show the caveat). Style-agnostic — use with whatever palette or design system the destination already h…

    skills/data-forms/SKILL.md on GitHub (opens in a new tab)

  • editorial-illustrations

    Generate meaning-carrying editorial data-illustrations in the monotykamary / Linear aesthetic (near-black grayscale, Inter display + mono labels, hairline framed figures) with a single coral accent. This is a GENERATIVE GUIDE, not a template gallery: it teaches the "claim -> geometry" method so any session can invent the RIGHT figure for what a post actually argues, then render it as a self-conta…

    skills/editorial-illustrations/SKILL.md on GitHub (opens in a new tab)

  • export-open-issues

    Audit and export open issues from any project tracker with summary analysis and vault archival

    skills/export-open-issues/SKILL.md on GitHub (opens in a new tab)

  • feature-doc

    Closed-loop feature documentation for your product. Give it a feature (issue numbers or an id) and it reads the source, drives your live app to capture real screenshots and a screen recording, writes a docs article (Docusaurus or any markdown docs site) with both how-to steps and use-case content, then verifies the article with a fresh-context read-only verifier before reporting. Use when you say…

    skills/feature-doc/SKILL.md on GitHub (opens in a new tab)

  • generate-prd

    Generate product requirements documents with optional publishing to Confluence or other wiki platforms

    skills/generate-prd/SKILL.md on GitHub (opens in a new tab)

  • generate-release-notes

    Generate categorized release notes from any source (GitHub, Linear, Jira, or manual input) with optional publishing

    skills/generate-release-notes/SKILL.md on GitHub (opens in a new tab)

  • harvest

    Capture durable session learnings, stage for human promotion to 05-knowledge/lizard, and propose skill/CLAUDE.md patches. Triggered by /harvest, SessionEnd hook staging, or nightly enhance. Never writes durable knowledge without your approval.

    skills/harvest/SKILL.md on GitHub (opens in a new tab)

  • knowledge-consolidation

    Build frameworks from scattered insights across all braindumps and notes

    skills/knowledge-consolidation/SKILL.md on GitHub (opens in a new tab)

  • loop-engineering

    Shared loop-engineering reference for COG skills - the agent loop, deterministic verifiers, termination conditions, in-loop context management, and named patterns. Invoke when designing or debugging a skill that iterates (search-verify-retry, scan-until-dry, fetch-retry-gate).

    skills/loop-engineering/SKILL.md on GitHub (opens in a new tab)

  • meeting-transcript

    Process meeting recordings and notes into structured decisions, action items, and team dynamics with intelligent noise filtering

    skills/meeting-transcript/SKILL.md on GitHub (opens in a new tab)

  • memory-hygiene

    Periodic trust sweep of persistent memory and durable knowledge notes - re-verifies environment-dependent claims against the live environment, stamps last_verified + confidence, and proposes archiving drifted entries

    skills/memory-hygiene/SKILL.md on GitHub (opens in a new tab)

  • museum-art

    Source authentic, high-res PUBLIC-DOMAIN artwork from museum open-access APIs (Met, Cleveland, SMK, Rijksmuseum, NGA, Art Institute of Chicago, Getty, Smithsonian) instead of AI-generated or generic-stock imagery. The default move whenever a visual needs an aesthetic, credible image (blog heroes, decks, social cards, essay/spec figures). Verified keyless recipes + licensing rules inside.

    skills/museum-art/SKILL.md on GitHub (opens in a new tab)

  • no-ai-slop

    Edit drafts into sharper, more human writing while preserving the writer's personal voice, or detect AI-slop patterns without rewriting. Use when the user wants a draft clearer, more direct, more opinionated, or less AI-sounding, or asks whether writing reads as AI. Also the default writing standard for all agent output: 80% ASD-STE100 controlled language plus the format ladder (prose, diagram, H…

    skills/no-ai-slop/SKILL.md on GitHub (opens in a new tab)

  • onboarding

    Personalize COG for your workflow - creates profile, interests, and watchlist files with guided setup (run this first!)

    skills/onboarding/SKILL.md on GitHub (opens in a new tab)

  • product-ui-taste

    Anti-slop skill for PRODUCT UI - dashboards, data tables, forms, multi-step flows, settings, list/detail, app shells. The agent reads the surface, budgets the frame first, and ships dense interfaces that are correct at every edge case (overflow, long labels, empty/error/loading states, i18n expansion, keyboard/a11y). House-system-first; maps to Carbon/Polaris/Atlaskit/Fluent/Primer/Material3/Radi…

    skills/product-ui-taste/SKILL.md on GitHub (opens in a new tab)

  • publish-to-confluence

    Publish any markdown file from the vault to Confluence with format conversion and approval gate

    skills/publish-to-confluence/SKILL.md on GitHub (opens in a new tab)

  • release-comms

    Release communication pipeline for your product: turn a deployment runsheet and a GitHub milestone into a customer-facing release note with real screenshots and videos, docs updates (including retrofits of articles the release makes stale), a Slack announcement draft, and a lightweight marketing package. Use when you say "cover today's release", "write the release note", or "/release-comms".

    skills/release-comms/SKILL.md on GitHub (opens in a new tab)

  • release-video

    Turn a product release (the list of shipped items plus real screen recordings) into a motion recap video and one explained demo per feature, with sound effects tied to on-screen motion and a composed music bed. Deterministic HTML scenes rendered frame by frame, ElevenLabs for sound effects and music, ffmpeg for the mix. Use when asked for a release video, a changelog video, a feature recap reel,…

    skills/release-video/SKILL.md on GitHub (opens in a new tab)

  • retro

    CP-7 retrospective: audit checkpoints, evidence quality, action items, and harvest candidates. Closes the V-model cycle and feeds the next run. Use via /retro after ship, escalate, or significant session.

    skills/retro/SKILL.md on GitHub (opens in a new tab)

  • review-cockpit

    Produce and continuously maintain ONE living review document for a multi-item session — a cockpit header (Progress checklist, Working folder, Context) plus per-item review cards that you approve or request changes on directly in the doc or side panel. Use whenever a session has multiple deliverables you need to review/approve (meeting-processing + planning, multi-ticket work, briefs with several…

    skills/review-cockpit/SKILL.md on GitHub (opens in a new tab)

  • scout

    Evaluate URLs and tools — check vault coverage, assess relevance, recommend save or skip

    skills/scout/SKILL.md on GitHub (opens in a new tab)

Review before you install

A skill is a set of instructions and scripts your agent will follow, and it can run code on your machine. Read the SKILL.md and any scripts first — this listing is not a security review.