my agent skills stack in 2026, actually copy-pasteable

r/claudeskills · u/nakamot0_ · source

I’ve seen a bunch of “must-have agent skills” lists lately. Half of them link to dead repos, outdated skills, or commands that don’t work anymore. So here’s the stack I’m actually using. I went through the repos and install paths before putting this together.

engineering

• catches bugs before your code gets merged — npx skills add addyosmani/agent-skills --skill code-review-and-quality. Runs a structured review across correctness, readability, architecture, security and performance.
• tells you where your eval setup is actually failing — npx skills add https://github.com/ai-evals-course/evals-skills. Audits an existing eval pipeline, helps discover failure modes from traces and gives you workflows for building better product-specific evals.
• builds MCP servers without starting from a blank repo — npx skills add https://github.com/anthropics/skills --skill mcp-builder. Guides the agent through building MCP servers and the surrounding implementation work.
• fixes the prompt before you start rewriting the code — npx skills add CodeAlive-AI/ai-driven-development --skill prompt-engineering -g -y. Helps diagnose prompting problems, choose the right prompting technique and avoid common failure modes like hallucinations, bad structure and security mistakes.
• stops the agent from “fixing” five files when you asked about one — /plugin marketplace add obra/superpowers-marketplace then /plugin install superpowers@superpowers-marketplace. Adds a more disciplined development workflow with planning, TDD, debugging and task-execution patterns.
• tests the app in a real browser instead of guessing from the code — npx skills add https://github.com/anthropics/skills --skill webapp-testing. Uses Playwright to interact with local web apps, verify frontend behavior, capture screenshots and inspect browser logs.

design

• makes static graphics that don’t look like AI-generated templates — npx skills add https://github.com/anthropics/skills --skill canvas-design. Turns a design brief into original PNG/PDF artwork with a deliberate visual direction, composition, typography and spacing.
• stops every UI from looking like the same AI-generated SaaS — npx skills add https://github.com/anthropics/skills --skill frontend-design. Pushes the agent toward production-quality frontend design instead of generic layouts and default-looking components.

comms

• gives your agent its own email inbox — npx --package=@atomicmail/agent-skill-github atomicmail register --username "myagent" --watch scheduled. Lets an agent read, send and react to email autonomously instead of stopping every time something hits the inbox.
• turns “write a status update” into something you can actually send — npx skills add https://github.com/anthropics/skills --skill internal-comms. Covers status reports, leadership updates, project updates, incident reports, FAQs, newsletters and other internal communication formats.

memory

• lets your agent actually work with an Obsidian vault — npx skills add https://github.com/kepano/obsidian-skills. Adds Obsidian-specific knowledge for Markdown, Bases, JSON Canvas, CLI workflows and other vault operations.
• keeps the plan alive after /clear — npx skills add OthmanAdi/planning-with-files --skill planning-with-files. Stores the plan, findings and progress in files so the agent can recover after context loss, crashes, compaction or /clear.

automation

• actually operates websites instead of just telling you how to operate them — npx skills add vercel-labs/agent-browser. Gives the agent real browser automation for navigation, forms, screenshots, data extraction, authentication and even systematic exploratory testing.

growth

• turns “check the site for SEO issues” into a real audit — npx skills add https://github.com/kostja94/marketing-skills --skill seo-audit. Checks technical SEO, indexing, on-page issues, content, and off-page factors in a defined order instead of dumping a random list of recommendations.

discovery

• turns a one-off workflow into a reusable skill and lets you test whether it actually works — npx skills add https://github.com/anthropics/skills --skill skill-creator. Helps create new skills, improve existing ones, run evaluations, benchmark changes and optimize skill descriptions so they trigger more reliably.

That’s my current stack. What am I missing? Especially interested in skills that are actually useful in day-to-day agent work.

Discussion highlights

• Token bloat is the top complaint. u/machintosh81 deleted all skills because token usage “went through the roof.” u/Mithryn’s workaround: a lightweight CLAUDE.md plus an Agent.MD “toolbelt” of ~200–300 tokens of If/Then tool selection, loading the right skills per task via pre-tool-use.
• u/ancient-saios recommends a custom task observer skill as the one that helps them build their own.
• Several questioned whether the listed skills differ from baseline — u/macbig273 called the default skill-creator “shit, not updated on the documentation.”
• The author uses Hermes and KC as agents.