Agent skills you can check before you install
Public SKILL.md skills from GitHub repositories with 50+ stars and from the vendors themselves, scanned and scored. Install any of them with one command in Claude Code, Cursor, Codex, GitHub Copilot or Gemini CLI.
49,107 skills from 2,358 repositories · updated 11 minutes ago
48,058 skills
- verify-language-switchreticlehq/reticleProve a language switch translates what the user sees, keeps what they had already typed, and is still in force after a reload. Use when i18n, a locale picker, a language menu or translation files were added or changed, when a string is suspected of staying in the old language or showing a raw translation key, or when a user reports losing their form or their language choice after switching or refreshing.OtherNo warnings★ 1.3K↓ —
- scenario-product-shotsscenario-labs/skillsUse when producing product photography with Scenario from a real product photo: e-commerce packshots on white, transparent, or brand backgrounds, lifestyle scenes placing the product in an environment, hero shots for a landing page or marketplace listing, angle and colorway sets, relighting or shadow fixes, or any shot where the label, logo, and shape must stay exact. Keywords: product photo, packshot, e-commerce, lifestyle shot, compositing, relight, label fidelity, catalog.DesignNo warnings★ 1.5K↓ —
- fix-what-i-pointed-atreticlehq/reticlePick up the bugs a human flagged by pointing at them in the running app, each arriving with the element, the note they typed, and the source file and line. Use when the user says they marked or flagged something, when starting a session on an app someone has been clicking through, when a designer or PM has left feedback in the UI, or when the user describes a problem as "that button there" without saying which file.DesignNo warnings★ 1.3K↓ —
- editorial-illustrationshuytieu/COG-second-brainGenerate 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-contained, theme-aware, reduced-motion-safe HTML/SVG figure. Use when writing/illustrating a blog post, essay, spec, or slide and you want a chart, diagram, or illustration that carries a thesis (not decoration) in the house style. Triggers: "make a chart/diagram/illustration for this", "visualize this argument", "monotykamary/Linear style figure", "editorial graphic".MediaNo warnings★ 1.3K↓ —Also in 1 other repo
- loop-engineeringhuytieu/COG-second-brainShared 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).EngineeringNo warnings★ 1.3K↓ —
- social-media-kithuytieu/COG-second-brainAttach native media (teaser video, GIF, card images) to every social post, with per-platform upload stepsMarketingNo warnings★ 1.3K↓ —
- product-ui-tastehuytieu/COG-second-brainAnti-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/Radix-shadcn/Ant. The counterpart to taste-skill, which owns landing/portfolio/marketing.DesignNo warnings★ 1.3K↓ —Also in 1 other repo
- sfxmintNewhashgraph-online/awesome-codex-pluginsAdd free CC0 sound effects to a web app or game without an API key, using the SFXMint API (sound roles, sets grouped by event, search) and permanent hotlinkable MP3/WAV URLs. With an SFXMint API key it can also generate a sound the library lacks. Use when the user asks to add sounds, audio feedback or UI sounds to an app, wants click / notification / success / error / alert sounds, game sound effects (coin, jump, hit, explosion, power-up, game over), ambience (rain, forest, drone), or asks where to get free sound effects for an app, game, video, prototype or demo. Not for music, voice or speech.DesignNo warnings★ 1.5K↓ —
- vector-coverhuytieu/COG-second-brainFlat vector editorial cover illustrations in HTML and SVG, rendered to a 2400x960 PNG with headless ChromeBrowserNo warnings★ 1.3K↓ —
- macboxNewhashgraph-online/awesome-codex-pluginsBuild, test, run, and tap through native iOS apps on a real remote Mac. Use for iOS build, test, and simulator work when this machine can't run Xcode, or when CLAUDE.md or AGENTS.md says to use macbox.TestingNo warnings★ 1.5K↓ —
- blog-publishhuytieu/COG-second-brainSelf-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.WritingNo warnings★ 1.3K↓ —
- wellness-planmohitagw15856/pm-claude-skillsBuild a preventive-care (wellness) plan for a pet by species, breed, and life stage. Use when asked to create a wellness plan, plan preventive care, set up a vaccination/parasite schedule, or advise an owner on routine care for a puppy/kitten/adult/senior pet. Produces a life-stage-appropriate schedule — vaccinations, parasite prevention, dental, nutrition, screening diagnostics, and behavioral guidance — with the rationale, so an owner sees preventive care as a plan, not a series of surprise visits.PlanningNo warnings★ 1.5K↓ —
- review-cockpithuytieu/COG-second-brainSelf-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.EngineeringNo warnings★ 1.3K↓ —
- motion-formatsNewhashgraph-online/awesome-codex-pluginsSeven complete motion formats, each with a beat structure in seconds, a shot list and presets: a found-footage analog-horror trailer of a website, an authentic VHS bouncing-logo screensaver, a pixel-art runner on a CRT, a wordmark with a wave running through it, a one-shot music video that follows a DAW timeline, a launch trailer for an import feature, and a kinetic lyric video. Values come from VHS signal models (ntsc-rs, Finn McKenty), pixel-art conventions (Pedro Medeiros, Slynyrd), School of Motion, Netflix timing rules, screenlife rules and launch-film designers on X. Use when someone asks for one of these formats, a VHS or analog-horror look, a pixel art animation, a lyric video or a beat-synced launch video. NOT for generating the song or footage (varg-ai, varg-music-video).MediaNo warnings★ 1.5K↓ —
- knowledge-consolidationhuytieu/COG-second-brainBuild frameworks from scattered insights across all braindumps and notesProductivityNo warnings★ 1.3K↓ —Also in 1 other repo
- social-overlaysNewhashgraph-online/awesome-codex-pluginsEleven conversion overlays for short-form ads, UGC and creator videos, with presets per platform: CTA pill, follow tap prompt, story sticker tag, LIVE badge with viewer count, notification drop, review proof card, story caption bar, photo wall loop, follower counter and goal bar, comment callout (reply-to-comment) and subscribe-and-bell nudge. Presets use one universal 9:16 safe box built from TikTok, Meta Reels, YouTube Shorts and Snap specs, CTA timing from creator analysts (ask after value, never in the intro), native number formats, contrast and motion tokens, plus the FTC rules: reviews, comments and counts come from real data only and paid content is disclosed. Use when an ad or creator video needs a call to action, a subscribe or follow ask, a review or comment on screen, a LIVE badge or a counter. NOT for fake reviews, fake follower counts or copying a platform's logo.MediaNo warnings★ 1.5K↓ —
- feature-dochuytieu/COG-second-brainSelf-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.DesignNo warnings★ 1.3K↓ —
- onboardinghuytieu/COG-second-brainPersonalize COG for your workflow - creates profile, interests, and watchlist files with guided setup (run this first!)ProductivityNo warnings★ 1.3K↓ —
- data-formshuytieu/COG-second-brainPick 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 has. Use when charting survey results, benchmark data, usage metrics, or research findings for a post, brief, deck, or report, and whenever the default bar chart feels like it's burying the point.DocumentsNo warnings★ 1.3K↓ —
- team-briefhuytieu/COG-second-brainGenerate daily team intelligence brief by cross-referencing GitHub, Linear, Slack, PostHog, meetings, and braindumps with two-way Linear sync-backOtherNo warnings★ 1.3K↓ —
- daily-journalhuytieu/COG-second-brainA 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", or when finishing a meaningful chunk of work in any session.WritingNo warnings★ 1.3K↓ —
- research-competitors-edge-casesgooseworks-ai/goose-skillsStep of the research-competitors playbook: rules for run edge cases such as no browser, stalled workers, earlier reports and late reads. Run research-competitors instead; not for direct use.ScienceNo warnings★ 1.3K↓ —
- sci-abstractbrycewang-stanford/Awesome-Journal-SkillsUse when writing the two front-matter artifacts Science (AAAS) demands — the one-sentence summary for the table of contents and the ≤125-word single-paragraph abstract — both readable by any scientist and both leading with the quantified advance rather than the method. Late-stage polish skill for the flagship AAAS weekly.ScienceNo warnings★ 1.4K↓ —
- ergonomicshashgraph-online/awesome-codex-pluginsAudit CLI, API, MCP or SDK discovery, first use and error recovery. Use when: designing an agent-facing tool or investigating misuse, including one command.FinanceNo warnings★ 1.5K↓ —Also in 2 other repos
gate-check
undefined-ui/second-brain-os
ProductivityUpdated 14 hours ago
From the author
Find the decisions in a pipeline that do not need the expensive model and propose the gate for each: a rule, a classic classifier, or a small model, with fail-closed routing. Use when the user asks to cut model costs or latency, says the big model handles everything, or wants a triage / routing / filter layer in front of an agent. Analysis plus an optional baseline scaffold. Do NOT use for auditing context layout (context-audit) or for building eval suites (evals-bootstrap).
Install
npx skills add undefined-ui/second-brain-os --skill gate-check -a claude-code
Installs to .claude/skills/gate-check/ · Each command fetches the skill straight from GitHub with the open skills CLI.
Download .zip
Byte-identical to the scanned commit, with the repository’s licence and a SOURCE.txt.
What it can touch
Instructions onlyNo network use seenLicence: MIT
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- SKILL.md