claude

cog-second-brain

Self-evolving second brain with 43 AI agent skills, 10 agents, and people CRM. Closed-loop harness release: a V-model verification lifecycle (spec to evidence, criterion-traced checkpoints), read-only verifier agents that observe artifacts instead of trusting worker summaries, risk lanes, multi-session ultragoals with a north-star acceptance gate, plus craft skills for writing, visual work, and a paired anti-slop design system for marketing and product UI. Inspired by Garry Tan's gstack specialist sessions, gbrain knowledge patterns, and dwarves-kit closed-loop execution. Works with Claude Code, Antigravity, Cursor, Kiro, Gemini CLI, Codex, and any markdown-reading agent.

1,422 on GitHubby Huy Tieuv3.16.0MITupdated 21 days agoproductivity

Not in a marketplace yet, so it loads for one session with --plugin-dir.

Plugin cog-second-brain in huytieu/COG-second-brain. Commands read from the repo's manifest — 21 days ago.

What it installs

Skills (43)

  • auto-research

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

  • blog-publish

    Write and publish a post to your own static blog: TL;DR, ASCII art, markdown twin for agents, deploy, and social distribution

  • braindump

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

  • 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,

  • comprehensive-analysis

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

  • 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

  • create-user-story

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

  • daily-brief

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

  • 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 /d

  • 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

  • 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

  • export-open-issues

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

  • feature-doc

    Document a shipped feature from the live app: real screenshots and a screen recording, a docs article with how-to and use cases, verified before publish

  • generate-prd

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

  • generate-release-notes

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

  • 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.

  • knowledge-consolidation

    Build frameworks from scattered insights across all braindumps and notes

  • 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).

  • meeting-transcript

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

  • 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

  • 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, de

  • 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.

  • onboarding

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

  • 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 expansio

  • publish-to-confluence

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

  • release-comms

    Turn a deployment runsheet and a GitHub milestone into a customer release note with real media, docs updates, and a Slack announcement draft

  • 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. Use when asked for a release video, a changelog video, a feature recap reel, or demo clip

  • 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.

  • 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

  • scout

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

  • slop-gate

    Deterministic pre-publish scan that refuses AI-slop tells in anything about to be written, published, or sent: files, artifacts, slide titles, table headers, diagram labels, chat messages, commit messages. Use before publishing or sending any deliverable, in CI, or wired as a Claude Code hook so the

  • social-media-kit

    Attach native media (teaser video, GIF, card images) to every social post, with per-platform upload steps

  • taste-skill

    Anti-slop frontend skill for landing pages, portfolios, and redesigns. The agent reads the brief, infers the right design direction, and ships interfaces that do not look templated. Real design systems when applicable, audit-first on redesigns, strict pre-flight check.

  • team-brief

    Generate daily team intelligence brief by cross-referencing GitHub, Linear, Slack, PostHog, meetings, and braindumps with two-way Linear sync-back

  • terminal-replica

    Reproduce your real terminal and CLI agents (Claude Code, Codex, Gemini CLI) faithfully in graphics and video frames

  • ultragoal

    Run a large, multi-session goal (e.g. shipping a whole side product) through the full V-model closed loop, one phase at a time, with cross-session state and a final north-star acceptance gate. Ultragoals never downgrade the lane: every phase runs CP-1→CP-6 with adversarial verification. Opt-in: invo

  • update-cog

    Check for and apply upstream COG framework updates (skills, docs, scripts) without touching personal content

  • update-knowledge-base

    Maintain and update product knowledge base from releases, features, and project changes with optional wiki sync

  • url-dump

    Quick capture URLs with automatic content extraction, insights, and categorization into knowledge booklets

  • vector-cover

    Flat vector editorial cover illustrations in HTML and SVG, rendered to a 2400x960 PNG with headless Chrome

  • voice-baseline

    Measure your own writing corpus for the words and sentence shapes you over-use, so an agent writing in your voice stops amplifying your tics into a style. Produces a counted baseline file and checks any new draft against it. Use when an agent's drafts start sounding like a caricature of you, before

  • weekly-checkin

    Cross-domain pattern analysis and strategic reflection for weekly review

  • youtube-video-kit

    YouTube packaging: thumbnail, animated opening title, ElevenLabs music bed, and the upload metadata bundle

View source on GitHub

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