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mvanhorn/README.md

Hey, I'm Matt Van Horn

X @mvanhorn LinkedIn

Co-founded June ("self-driving oven," acquired by Weber) and the company that became Lyft. Building again, more soon. Vibe coding the last30days research tool.

Building

  • last30days GitHub stars - AI agent skill that researches any topic across Reddit, X, YouTube, HN, Polymarket, and the web.

Contributing to

  • Python GitHub stars - Defaultdict repr infinite recursion, man page -X option text wrapping
  • OpenCV GitHub stars - HoughCircles Python return type, YAML parser heap-overflow, reprojection error RMSE calculation
  • Vercel Agent Browser GitHub stars - Appium v3 vendor prefix, chrome:// target filtering, WebSocket fallback, batch command workflows (#5 human contributor)
  • OpenClaw GitHub stars - Browser relay, rate limit UX, iMessage delivery, Codex sandbox detection, voice calls, Telegram group prefix normalization
  • Zed Code Editor GitHub stars - $ZED_LANGUAGE task variable, Reveal in Finder tab context menu, git panel starts_open setting, code_actions_on_format revert fix
  • ByteDance's Deer Flow GitHub stars - WebGL context graceful fallback, Cmd+K command palette and keyboard shortcuts, token usage per conversation turn, Docker service name channel URL guidance
  • ByteDance's OpenViking GitHub stars - Agent space name hashing, MCP stdio contention detection, async memory extraction, semantic summary filtering, non-dict LLM response handling, filename preservation, retrieval quality observer, auto-recall timeout prevention, cold-storage archival, MCP api_key support, VLM max_tokens, Whisper ASR integration, reindex command, PDF bookmark resolution, Prometheus metrics, memory health API, litellm rerank provider, provenance metadata, diagnostic command, OCR text extraction for image parser (#6 human contributor)
  • Paperclip GitHub stars - SPA routing, FK cascade, agent wake-on-status, CLI hints, plugin domain events, .env fallback, promptfoo eval framework, project filter, inline image embedding, AGENTS.md graceful fallback (#4 human contributor)
  • Hugging Face Transformers GitHub stars - QA pipeline decode_spans boundary check
  • Dify GitHub stars - Shiki syntax highlighting migration
  • Superpowers GitHub stars - Session-start hook platform deduplication (tied for #5 human contributor)
  • LangChain GitHub stars - PIL image fd leak in OpenAI token counting
  • Microsoft Playwright GitHub stars - Line reporter retry mislabeling
  • GitHub Spec Kit GitHub stars - PowerShell positional parameter binding, specify/plan hook lifecycle wiring, speckit-utils community catalog
  • Agency Agents GitHub stars - Agent name normalization
  • Ladybird Browser GitHub stars - MouseButton::None handling in button code mapping
  • bat GitHub stars - Change marker preservation with --diff + --plain, consistent .deb MUSL package naming
  • Mem0 GitHub stars - AzureOpenAI structured LLM response parsing
  • Upstash Context7 GitHub stars - Command injection surface removal, enterprise MITM proxy certificate support
  • Homebrew GitHub stars - Sorbet typed: strict for cask artifact files, shell completions DSL artifact, Rosetta 2 caveats on Intel machines, bundle --describe flag, npm bundle extension
  • Astral's Ruff GitHub stars - Comment-import blank line preservation, extend-ignore/select configuration
  • moeru-ai/airi GitHub stars - Scoop installer decompression, provider config placeholder resolution, Scoop manifest v0.9.0 update
  • Chrome DevTools MCP GitHub stars - ESLint third-party import guard, tool schema pattern validation
  • PostHog GitHub stars - Non-retryable error matching refinement for data warehouse
  • Continue GitHub stars - CLI install script portability, DeepSeek Reasoner reasoning_content field, Python indentation preservation, .continue/checks/ discovery, workspace session history filtering
  • Lightpanda Browser GitHub stars - AXValue integer serialization per CDP spec, charset prescan detection, window.event property, Target.detachedFromTarget event dispatch, waitForSelector MCP tool, detectForms MCP tool, page state return from MCP actions
  • SGLang GitHub stars - DSA/NSA attention backend support matrix, Qwen3-Reranker chat-template support
  • Vercel Agent Skills GitHub stars - TypeScript barrel import warning for React best practices
  • Biome GitHub stars - ConfigurationOutsideProject diagnostic, organizeImports fixAll code action filtering
  • Vercel AI SDK GitHub stars - xAI provider model list GA updates
  • Super Productivity GitHub stars - Deadline support for sort, group, and filter in task view
  • Resend React Email GitHub stars - Fragment element data-source prop filtering, peer dependency caret ranges
  • Planning with Files GitHub stars - Analytics workflow template
  • QMD GitHub stars - --no-rerank query option
  • Kilo-Org Kilocode GitHub stars - Git config flags for Windows snapshot cleanup
  • Keploy GitHub stars - JUnit XML output format
  • RTK GitHub stars - gh pr view --comments passthrough, compact_diff skipping, cargo build output inclusion, hook warning suppression
  • Impeccable GitHub stars - Dropdown positioning guidance for interaction design
  • Adobe React Spectrum GitHub stars - Accessible dialog title dev warning
  • AgentScope CoPaw GitHub stars - DingTalk rich text empty block handling, Windows shell stderr suppression, reasoning_content sequential injection, cron CancelledError status reporting, async token usage lock
  • Edict GitHub stars - Gongbu/bingbu SOUL.md duty assignment correction, dashboard auto-archiving prevention
  • SurfSense GitHub stars - Development console.log gating, empty catch block error logging, nested interactive element separation, invite error toasts, maxLength input constraints, hero carousel state updates
  • Compound Engineering GitHub stars - Plan gating, serial review mode, hook safety, config merging, skills migration, NTFS colon handling, agent namespace resolution, ralph-wiggum reference updates, Codex delegation mode (#3 human contributor)
  • Manaflow cmux GitHub stars - Tab name in close confirmation dialog, clickable listening ports
  • Humanizer GitHub stars - MIT license, SKILL.md cleanup, hyphenated word pair overuse pattern (#2 human contributor)
  • Automattic's Harper GitHub stars - Grammar rule: "as evident by" correction, indefinite article logic extraction
  • Accomplish GitHub stars - Russian and French language support, OpenAI custom base URL endpoint filtering, workspace knowledge notes, window reference stability
  • containerd nerdctl GitHub stars - Makefile uninstall target
  • npm CLI GitHub stars - Prefer-offline and prefer-online mutual exclusivity
  • Editor GitHub stars - STL and OBJ export formats
  • Ghostfolio GitHub stars - Storybook Symbol Autocomplete component, OnDestroy lifecycle elimination
  • go-git GitHub stars - core.hooksPath config field
  • prek GitHub stars - VCS permalink and illegal Windows filename builtin hooks
  • photoview GitHub stars - Configurable media probing timeout via environment variable
  • Gumroad Skills GitHub stars - Processize skill for manual-first process design, Codex delegation skill (tied for #2 human contributor)
  • x402 GitHub stars - Facilitator error message scheme inclusion, stale TODO cleanup
  • stdlib GitHub stars - ESLint directive cleanup, ndarray grammar corrections, benchmark descriptions
  • GitPython GitHub stars - GitDB large commit performance warning
  • Entire CLI GitHub stars - Rewind path resolution, mise version detection, bare-repo worktree layout, hk hook manager detection, OpenCode transcript filtering, system-reminder message handling
  • mcporter GitHub stars - Resource content block output rendering
  • Topgrade GitHub stars - TOPGRADE_YES and TOPGRADE_CLEANUP env vars, getnf step integration, --no-self-update deprecation
  • Homarr GitHub stars - Null port handling in Docker container table
  • Shopware GitHub stars - isEmpty method for Collection
  • dagu GitHub stars - HTTP response format string config option
  • projen GitHub stars - GitHub artifact actions Node 24 compatibility bump
  • ElevenLabs Python SDK GitHub stars - Optional audio_interface for text-only chat mode
  • UniversalMediaServer GitHub stars - Docker image JRE optimization
  • VS Code Front Matter GitHub stars - Dot-prefixed folder hiding in media panel
  • RubyGems.org GitHub stars - Name validation error message precision
  • tabled GitHub stars - Color::is_empty method
  • Pygments GitHub stars - Haskell lexer escape sequence handling in character literals
  • ORT GitHub stars - Package configuration provider precedence
  • Feldera GitHub stars - Output buffer stall pipeline log messaging
  • Posit Shiny for Python GitHub stars - Reactive and render function parameter validation
  • deb-get GitHub stars - getnf and final2x packages
  • Embox GitHub stars - itoa() test coverage
  • pygame-ce GitHub stars - Scrap module autopgmodule integration
  • Stripe AI GitHub stars - MCP client name proxy in local stdio server User-Agent, optional parameter nullable values
  • Clawflows GitHub stars - URL-based workflow sharing import (#4 human contributor)
  • Redocly CLI GitHub stars - OAS 3.1 number range constraint rule
  • learnhouse GitHub stars - Backend logging standardization
  • Linear CLI GitHub stars - Non-interactive mode with CLI flags
  • ElevenLabs MCP GitHub stars - Resource path resolution security hardening, eu/in API residency shorthand aliases
  • Open Food Network GitHub stars - Webhook payload order number, inline error styling
  • iocraft GitHub stars - Home/End and Ctrl+A/E key bindings for TextInput (tied for #4 human contributor)
  • icalendar GitHub stars - CI test matrix skip handling
  • Vue Test Utils GitHub stars - Options API data() mounting example restoration
  • git-machete GitHub stars - Root branch messaging clarity
  • Skyrim Community Shaders GitHub stars - Feature category name centralization
  • Translate Toolkit GitHub stars - pot2po command alias
  • alphaclaw GitHub stars - Watchdog test notification endpoint
  • OpenTelemetry Docs GitHub stars - AI tool usage guidance in localization
  • Meilisearch JS GitHub stars - Federated search distinct parameter support
  • NVIDIA Nemotron GitHub stars - Recipes, cookbooks, and examples organization
  • Cactoos GitHub stars - PaddedEnd text decorator
  • Meilisearch PHP GitHub stars - Federated search distinct parameter support
  • Metal3 Baremetal Operator GitHub stars - vbmctl unit test CI workflow coverage
  • BetterLeaks GitHub stars - Multiple path support in dir command
  • Vercel Emulate GitHub stars - Programmatic API, Resend service, Slack service emulators
  • OpenBrand GitHub stars - Extraction error messaging
  • editorconfig-checker GitHub stars - File list exclusion refinements
  • Hister GitHub stars - Full end-date inclusion in date range search
  • Microsoft Agent Governance Toolkit GitHub stars - Markdown link checker CI workflow, Helm chart values, pytest markers
  • Bandersnatch GitHub stars - Filter matching log level adjustment
  • Boeing Config File Validator GitHub stars - --file-types flag for targeted config file validation
  • hummingbird GitHub stars - Queue panel maximum width increase
  • GraphQL Hive Console GitHub stars - Skeleton loader for access token loading states
  • av GitHub stars - av.db corruption error message improvement
  • OPA Regal GitHub stars - --profile format validation for JSON output requirement
  • CascadeFlow GitHub stars - Trace export and offline cascade simulation
  • KubeElasti GitHub stars - Target-deployment manifest in setup guide
  • codeflash GitHub stars - Optimization output formatting
  • Reddit Devvit GitHub stars - XML preamble icons, hSetNX Redis transactions, path separator normalization (tied for #3 human contributor)
  • svg-to-compose - CLI build-type condition, verbose log typo correction (#2 human contributor)
  • Kilroy - Circuit breaker, prompt loading, heartbeat events, CLI tooling
  • Cedar - Dry-run upgrade output messaging, Helmet import simplification
  • CEOS - EOS longitudinal health tracking
  • FreshClaude - Tab-switch shortcut propagation, Monaco editor theme syncing
  • HawkDoc - Table block support via @lexical/table
  • Parallel - Shell completion for bash, zsh, and fish
  • Vigilante - CI/CD pipeline improvements

OpenClaw Skills

  • Search X - Real-time X/Twitter search powered by Grok
  • Polymarket - Query and trade on prediction markets
  • Parallel - High-accuracy web search via Parallel.ai
  • Manus - Create autonomous AI tasks via Manus API
  • Tesla - Control your Tesla vehicles
  • xAI - Chat with Grok models via xAI API

Paperclip Plugins

  • Discord - Bidirectional Discord integration: notifications, slash commands, and community intelligence
  • Slack - Slack notifications for issue creation, completion, and approval workflows
  • Telegram - Bidirectional Telegram bot: push notifications, bot commands, inline approve/reject buttons
  • ACP Runtime - Run Claude Code, Codex, and Gemini CLI from any chat platform via Agent Client Protocol

Last updated: 2026-04-03

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  1. last30days-skill last30days-skill Public

    AI agent skill that researches any topic across Reddit, X, YouTube, HN, Polymarket, and the web - then synthesizes a grounded summary

    Python 18.3k 1.5k