The best AI skills for Google Gemini.
Gemini runs in Gemini CLI and many other agents. Skills give it the same procedures you use with Claude or Codex.
npx alyn-cli add systematic-debugging test-driven-development frontend-designAlyn picks for Google Gemini
Gemini CLI reads skills from .gemini/skills. npx alyn-cli add <skill> -a gemini-cli puts them there.
Jesse Vincent
Superpowers
systematic-debugging
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes
Jesse Vincent
Superpowers
test-driven-development
Use when implementing any feature or bugfix, before writing implementation code
Anthropic
Skills
frontend-design
Guidance for distinctive, intentional visual design when building new UI or reshaping an existing one. Helps with aesthetic direction, typography, and making choices that don't read as…
Anthropic
Skills
xlsx
Use this skill any time a spreadsheet file is the primary input or output. This means any task where the user wants to: open, read, edit, or fix an existing .xlsx, .xlsm, .xltx, .csv, or…
Anthropic
Skills
Use this skill whenever the user wants to do anything with PDF files. This includes reading or extracting text/tables from PDFs, combining or merging multiple PDFs into one, splitting PDFs…
Corey Haines
Marketingskills
copywriting
When the user wants to write or rewrite page copy (homepage, landing, pricing, feature), or asks which headline, promise, or message to lead with. Diagnoses the input first (blank brief…
Corey Haines
Marketingskills
seo-audit
When the user wants to audit or diagnose SEO, or asks why traffic dropped, a page won't rank, or whether a setup like canonicals, hreflang, or redirects is right: technical SEO, indexing…
Jesse Vincent
Superpowers
brainstorming
You MUST use this before any creative work - creating features, building components, adding functionality, modifying behavior, or planning anything new, in software or out of it (a talk, a…
Why skills make Google Gemini better
On SkillsBench, Gemini 3 Flash with skills reached 48.7% and cost 44% less per task than Gemini 3 Pro. A cheap model plus the right skill is often the best deal.
Where to use Google Gemini with skills
Top ranked AI skills right now

code-review
Review the changes since a fixed point (commit, branch, tag, or merge-base) along two axes: Standards (does the code follow this repo's documented coding standards?) and Spec (does the code…

codebase-design
Shared vocabulary for designing deep modules. Use when the user wants to design or improve a module's interface, find deepening opportunities, decide where a seam goes, make code more…

diagnosing-bugs
Diagnosis loop for hard bugs and performance regressions. Use when the user says "diagnose"/"debug this", or reports something broken/throwing/failing/slow.

agent-self-evaluation
Use after completing any non-trivial task. The agent self-rates its output on 5 axes — accuracy, completeness, clarity, actionability, conciseness — with concrete evidence per criterion…

angular-developer
Generates Angular code and provides architectural guidance. Trigger when creating projects, components, or services, or for best practices on reactivity (signals, linkedSignal, resource)…

brand-discovery
Run a structured, resumable multi-session brand identity interview across 8 modules (purpose, positioning, audience, personality, voice, narrative, founder tension) using laddering, 5 Whys…

caveman
Terse caveman voice: answer first, fluff gone, every technical fact kept. Use for /caveman, "caveman mode", "talk like caveman", "be brief", "less tokens". Stays on until "stop caveman" or…

caveman-commit
Write a Conventional Commits message compressed to intent only. Use for "write a commit", "commit message", /commit or /caveman-commit.
Google Gemini FAQ
Do AI skills work with Google Gemini?
Yes. Skills are SKILL.md files your agent loads into the context, so they work with Google Gemini in Gemini CLI, Cursor, GitHub Copilot.
What are the best AI skills for Google Gemini?
Alyn's picks for Google Gemini: systematic-debugging, test-driven-development, frontend-design, xlsx, pdf. Gemini CLI reads skills from .gemini/skills. npx alyn-cli add <skill> -a gemini-cli puts them there.
Why use skills with Google Gemini?
On SkillsBench, Gemini 3 Flash with skills reached 48.7% and cost 44% less per task than Gemini 3 Pro. A cheap model plus the right skill is often the best deal.