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.
49,409 skills from 2,375 repositories · updated 7 hours ago
48,362 skills
- os-ask-simplekharmanskyi/open-stepsALWAYS invoke this skill before asking the user any technical question or offering options, and whenever they ask to be asked in plain words - "ask simple", "ask me simply", "ask me in plain words" - in any language. ALWAYS invoke it too when the user asks for your view on a technical choice: whether it is worth doing, more than the problem needs, or replaceable by something simpler, and which option you would take. Invoke it even when the code makes the answer look obvious: the checks are what make the answer more than a guess. Rewrites the question in plain words and always ends with one marked recommendation. A structural choice first passes six checks, shown as a table: effort now, simpler substitute, extra work later, lock-in, over-engineering, easy to undo. Doing nothing is always weighed.EngineeringNo warnings★ 1.3K↓ —
- analyticsmicrosoft/power-platform-skillsUse when a Process Mining overview, initial process selection, or an analytical follow-up needs routing.DataNo warnings★ 1.1K↓ —
- asc-ppp-pricingrorkai/app-store-connect-cli-skillsSet territory-specific pricing for subscriptions and in-app purchases using current asc setup, pricing summary, price import, and price schedule commands. Use when adjusting prices by country or implementing localized PPP strategies.PlanningNo warnings★ 1.1K↓ —
- asc-revenuecat-catalog-syncrorkai/app-store-connect-cli-skillsReconcile App Store Connect subscriptions and in-app purchases with RevenueCat products, entitlements, offerings, and packages using asc and RevenueCat MCP. Use when setting up or syncing subscription catalogs across ASC and RevenueCat.OtherNo warnings★ 1.1K↓ —
- marketing-guidegooseworks-ai/goose-skillsHow every GooseWorks marketing playbook runs: connecting, picking the brand, where files go, the shared claims, money, research and schedule rules, and the index of what each playbook saves and who reads it. Load at the start of any playbook run. Not a marketer ask: for "what should I do first?" use where-to-start.MarketingNo warnings★ 1.3K↓ —
- clinical-researchalirezarezvani/claude-skillsUse when designing a prospective clinical study: choosing primary and secondary endpoints, estimating sample size and power, or scoring feasibility before submission. Runs endpoint_selector.py, sample_size_estimator.py and phase_gate_scorer.py; outputs are estimates for a biostatistician to confirm.ScienceNo warnings★ 29.2K↓ —
- diagnose-flowmicrosoft/power-platform-skillsDeep autonomous diagnosis of a failed flow run. Provide environment, flow, and run IDs. Use when the user asks to diagnose or deeply investigate a specific failed flow run.FinanceNo warnings★ 1.1K↓ —
- design-qaNewalirezarezvani/claude-skillsUse when a UI screen, page or component is about to be called done, handed off or shipped, or when generated UI looks generic or half-finished. Gates the rendered result, not the design file - finds controls that do nothing, placeholder copy, removed focus rings, missing loading/empty/error states, low contrast, small targets, hidden focus and broken reflow measured in the real browser, and flags template defaults without blocking on taste.TestingNo warnings★ 29.2K↓ —Also in 1 other repo
- hep-uploadagentlas-ai/Agentlas-OSPublish an Agentlas package to Agent Cloud or the public Hub.OtherNo warnings★ 1.6K↓ —
- oma-scmfirst-fluke/oh-my-agentSCM (software configuration management) and Git — branching, merges, conflicts, worktrees, baselines, audit readiness, plus Conventional Commits and safe staging.EngineeringNo warnings★ 1.4K↓ —
- setupfcakyon/claude-codex-settingsThis skill should be used when user encounters "Tavily MCP error", "Tavily API key invalid", "web search not working", "Tavily failed", or needs help configuring Tavily integration.EngineeringNo warnings★ 1.2K↓ —
- asc-subscription-localizationrorkai/app-store-connect-cli-skillsBulk-localize subscription, subscription-group, and in-app purchase display names across App Store locales using asc, including API 4.4.1 version-scoped v2 resources. Use when filling or updating subscription/IAP names and descriptions without App Store Connect UI work.DesignNo warnings★ 1.1K↓ —
- ai-model-wechatUpdatedTencentCloudBase/CloudBase-AI-ToolkitUse this skill for WeChat Mini Program AI via wx.cloud.extend.AI (小程序, wx.cloud apps). Covers generateText and streamText with callbacks (onText, onEvent, onFinish); streamText needs a data wrapper, generateText returns the raw response. Models via wx.cloud.extend.AI.createModel with groups cloudbase (main managed, also 小程序成长计划 with `hy3`), the legacy hunyuan-v3 / hunyuan-exp, or custom-*; model id goes in the data wrapper `model` field. MUST run two-step preflight before code — see body. NOT for browser/Web (use ai-model-web), Node.js backend (use ai-model-nodejs), or image generation (use ai-model-nodejs).BrowserNo warnings★ 1.2K↓ —
- roastUpdatedalirezarezvani/claude-skillsRoast an idea: a 5-angle panel (Critic, Champion, Analyst, Investigator, Customer) attacks it, then a Judge returns one GO / RESHAPE / KILL verdict with the cheapest test to de-risk it. Use whenever the user wants to pressure-test or validate a business idea, asks for a brutal second opinion before building, asks is this a good idea, says convene the panel, or runs /roast.TestingNo warnings★ 29.2K↓ —
- simplifyfcakyon/claude-codex-settingsThis skill should be used when the user asks to "simplify", "clean up the diff", "run simplify", "simplify the changes", "review changed code for cleanup", explicitly invokes "/simplify", or asks to "commit without simplify", "skip simplify for this commit", or "commit this but skip simplify". Reviews changed code across reuse, simplification, efficiency, and altitude, or grants an explicit one-commit bypass. Not for correctness bugs.EngineeringNo warnings★ 1.2K↓ —
- market-researchalirezarezvani/claude-skillsUse for market sizing (TAM, SAM, SOM both top-down and bottom-up), survey sample sizes or segment scoring. Runs market_sizer.py, sample_size_planner.py and segmentation_scorer.py and never returns one unsourced number.ScienceNo warnings★ 29.2K↓ —
- litreviewalirezarezvani/claude-skillsUse when starting a literature review or a literature-based project. Plans the search (PICO, SPIDER) with framework_recommender.py, searches PubMed and OpenAlex with free_search.py and writes a .docx orientation guide. Single-paper lookups: query directly.DocumentsNo warnings★ 29.2K↓ —
- commercial-policyalirezarezvani/claude-skillsUse when writing or revising discount rules: discount matrix, approver thresholds, exception flows and the deal framework sales works under. Builds the matrix with discount_matrix_builder.py, routes exceptions with exception_router.py and checks the policy with policy_linter.py.WritingNo warnings★ 29.2K↓ —
- archivehashgraph-online/awesome-codex-pluginsUse at ship time to merge the spec into the living documentation, delete the staging spec and plan, and ask how to finish.PlanningNo warnings★ 1.5K↓ —
- planning-with-filesOthmanAdi/planning-with-filesPersistent file-based planning for multi-step AI-agent work. Keeps task_plan.md, findings.md, and progress.md on disk; lifecycle hooks inject selected project planning context. Automatic recovery reads project planning files only. Explicit session-catchup.py --metadata reads same-project local agent session records and emits aggregate counts only; --replay may emit bounded nonce-framed excerpts. Optional gated mode can request continuation only when the host supports it and never runs commands declared in Markdown. The skill has no network upload path. Use for research or work needing 5+ tool calls.PlanningNo warnings★ 27.9K↓ —
- onboardhashgraph-online/awesome-codex-pluginsUse when taking over an existing codebase that has no living document. Produces a factual record of what already exists.OtherNo warnings★ 1.5K↓ —
- financial-analystUpdatedalirezarezvani/claude-skillsAnalyze financial statements, value a company with a DCF, explain budget variance, build rolling forecasts. Use whenever the user asks what a business is worth or why spend missed budget.FinanceNo warnings★ 29.2K↓ —
- aussie-business-englishjezweb/claude-skillsAustralian business English for professional writing — warm, direct, EN-AU spelling (colour, organise, centre), no filler words. Use whenever the user is writing for an Australian audience: emails, chat messages, proposals, client communications, blog posts, web copy, or any business writing. Apply to drafting, editing, and tone-checking professional text.WritingNo warnings★ 1.1K↓ —
- color-palettejezweb/claude-skillsGenerate complete, accessible colour palettes from a single brand hex. Produces 11-shade scale (50-950), semantic tokens, dark mode variants, Tailwind v4 CSS output, WCAG contrast checks. Use whenever the user supplies a brand hex and asks for a palette, mentions setting up a design system, wants Tailwind theme colours from a brand colour, or asks to check colour accessibility / contrast.DesignNo warnings★ 1.1K↓ —
experiment-design
rampstackco/claude-skills
DesignUpdated Oct 27, 2026
From the author
A discipline for designing experiments (A/B tests, multivariate, holdouts) so the results actually answer the question you asked. Hypothesis writing, sample size, duration, segment analysis, running discipline, matching a result to a pre-committed decision rule, and the common failure modes that produce confidently wrong shipping decisions. Use this skill whenever the user is planning a test that has not run yet: framing a hypothesis, sizing the sample, setting duration, choosing guardrails, or deciding whether something is worth testing at all. Triggers on design an experiment, experiment plan, A/B test, split test, multivariate test, holdout, experiment hypothesis, sample size, minimum detectable effect, MDE, test duration, guardrail metric, no peeking, pre-committed decision rule, is this worth testing. Use `experimentation-analytics` instead when the test has already run and the question is how to read the result panel.
Install
npx skills add rampstackco/claude-skills --skill experiment-design -a claude-code
Installs to .claude/skills/experiment-design/ · 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
Safety checks on SKILL.md
No warnings.
Why 88
Security100
Provenance76
Maintenance100
Licence100
Adoption49
Files (9)
- README.md
- SKILL.md
- references/common-failures.md
- references/hypothesis-templates.md
- references/platform-comparison.md
- references/post-experiment-decision-framework.md
- references/pre-experiment-readiness-checklist.md
- references/results-interpretation-checklist.md
- references/sample-size-tables.md