The Vibeary — round-up
Best AI agent skills and skill collections
Skills are the highest-return investment in agent work: a well-written skill turns generic model output into something that follows your conventions, and it costs nothing at inference time beyond the tokens it loads. This shelf tracks the collections worth installing — engineering workflow packs, design-judgment skills that stop an agent producing template-shaped UI, security and testing skills, and the marketplaces where new ones appear. Read them before you install them; a skill is a prompt with your name on it.
What earned a place
- Written from real failures rather than speculation
- Scoped: one skill, one job, clear trigger conditions
- Readable source you can audit and adapt
- Maintained as agent tooling changes
24 picks from the library
- 01
ALIGN
Agentic loop where coding agents draw in p5.js, then refine via adversarial visual review — skills for Claude Code and Codex.
Why it made the list: Image generation as readable source you can replay, without a diffusion model.
Individual skillsMIT@wanshuiyinwanshuiyin.github.io
- 02
anthropics/skills
Anthropic's official skill repo: docx, pptx, xlsx, pdf, canvas-design, algorithmic-art, mcp-builder, webapp-testing and skill-creator.
Why it made the list: canvas-design and algorithmic-art are wildly underused by designers who only know the doc skills.
Skill collectionsopen-sourceAnthropicgithub.com
- 03
avoid-ai-writing
Skill with a detection engine that strips AI-isms, filler transitions and hedging from generated prose.
Why it made the list: Detection-then-rewrite loop, not just a 'write naturally' instruction that gets ignored.
Individual skillsopen-sourceConor Bronsdon (@conorbronsdon)github.com
- 04
awesome-agents-md
Curated real-world AGENTS.md files, templates, guides and tooling for Codex-style and cross-vendor agents.
Why it made the list: AGENTS.md is becoming the cross-vendor standard and this is the only real corpus.
Agent rulesopen-source@Ischcagithub.com
- 05
awesome-claude-code-plugins
Curated list of Claude Code slash commands, subagents, MCP servers and hooks packaged as installable plugins.
Why it made the list: Over a hundred plugins in one marketplace you can add with a single command.
Claude Code pluginsopen-source@ccpluginsgithub.com
- 06
awesome-claude-code-toolkit
Sprawling toolkit bundling agents, skills, commands, plugins, hooks, rules, templates and MCP configs in one repo.
Why it made the list: Single clone gives you a whole configured agent environment to strip for parts.
Claude Code pluginsopen-sourceRohit Ghumare (@rohitg00)github.com
- 07
awesome-claude-plugins
Community-maintained list of plugins extending Claude Code with commands, agents, hooks and MCP servers.
Why it made the list: Second opinion on plugin quality from a team that ships integrations daily.
Claude Code pluginsopen-sourceComposio Communitygithub.com
- 08
awesome-claude-skills (Composio)
Alternative curated list of Claude Skills, resources and tooling maintained by the Composio team with workflow-oriented grouping.
Why it made the list: Different curation taste from the other awesome lists, so different repos surface.
Skill collectionsopen-sourceComposio (@ComposioHQ)github.com
- 09
awesome-claude-skills (travisvn)
Curated index of official and community Claude Skills with per-entry notes, plus authoring tools and marketplaces for skills.
Why it made the list: Densest single harvest point for individual skill repos, not just the famous ones.
Skill collectionsopen-source@travisvngithub.com
- 10
awesome-cursor-rules-mdc
Machine-generated .mdc rule files derived from library documentation, one rule set per package.
Why it made the list: Auto-derived from real docs, so rules stay accurate as libraries evolve.
Agent rulesopen-source@sanjeed5github.com
- 11
awesome-cursorrules
Large collection of .cursorrules and .mdc rule files organised by framework and language for Cursor and Windsurf.
Why it made the list: Still the biggest rule corpus; most rules port straight to CLAUDE.md.
Agent rulesopen-sourcePatrickJS (@PatrickJS)github.com
- 12
Brad Frost Skills
Agent skills from Brad Frost covering design-system inspection, product health, DS adoption plans, and enforceable AI-usage limits.
Why it made the list: Atomic Design author's inspection stations, plus quiet-hours the agent actually honours.
Design skillsMITBrad Frostgithub.com
- 13
Brands DESIGN.md
Library of DESIGN.md files capturing real brand design systems — colour, type, spacing — in a format coding agents can read directly.
Why it made the list: Hand an agent a brand's actual system instead of describing it in prose.
Agent rulesunknown@ricoccgithub.com
- 14
cc-thinking-skills
Thinking-framework skills with a meta-router that picks the right reasoning approach for the problem at hand.
Why it made the list: Meta-routing between reasoning styles is a pattern almost nobody has shipped.
Skill collectionsopen-source@tjboudreauxgithub.com
- 15
Chinese Font Selector
Agent skill for picking CJK typefaces: licence-tiered commercial-safe font list, scene-by-mood selection matrix, and CJK–Latin pairing rules.
Why it made the list: Stops agents defaulting to Inter for Chinese layouts; licence status is baked in.
Design skillsMIT@Songzhi-labgithub.com
- 16
claude-d3js-skill
Skill that teaches Claude to build correct, idiomatic d3.js data visualisations instead of generic charting library output.
Why it made the list: d3 is the one library agents reliably get wrong; this fixes it.
Individual skillsopen-sourceChris von Csefalvay (@chrisvoncsefalvay)github.com
- 17
claude-plugins (sgaunet)
Focused collection of Claude Code plugins bundling specialised agents, skills and slash commands for development workflows.
Why it made the list: Small and curated rather than a dump; higher hit rate per plugin.
Claude Code pluginsopen-source@sgaunetgithub.com
- 18
claude-plugins-official
Anthropic's curated directory of vetted Claude Code plugins, used as the default marketplace source.
Why it made the list: The vetted baseline before you go digging in community marketplaces.
Claude Code pluginsopen-sourceAnthropicgithub.com
- 19
claude-scientific-skills
Ready-to-use scientific computing skills spanning data analysis, bioinformatics and research pipelines for Claude agents.
Why it made the list: Whole scientific stack as skills; nothing else covers this domain at depth.
Skill collectionsopen-sourceK-Dense AIgithub.com
- 20
claudedesignskills
Claude Code skill bundle for modern web work, specialising in 3D graphics, animation and interactive web experiences.
Why it made the list: Rare skill pack aimed at motion and 3D rather than backend chores.
Skill collectionsopen-source@freshtechbrogithub.com
- 21
claudekit-skills
Open-sourced skill set behind ClaudeKit covering research, planning, shipping and repo hygiene for Claude Code projects.
Why it made the list: A commercial product's skills dumped free; higher polish than typical hobby skills.
Skill collectionsopen-source@mrgooniegithub.com
- 22
cursor-agent-configs
Advanced .mdc rules for Cursor covering agent memory management and multi-step development workflows.
Why it made the list: Memory-management rules are far rarer than the usual style-guide rules.
Agent rulesopen-source@DVC2github.com
- 23
daymade/claude-code-skills
Production-oriented Claude Code skill marketplace repo with installable skills for day-to-day development workflows.
Why it made the list: Structured as an installable marketplace, so you can cherry-pick skills quickly.
Skill collectionsopen-source@daymadegithub.com
- 24
diagram-design
Skills that produce editorial-quality diagrams in HTML and SVG with deliberate typography and layout decisions.
Why it made the list: Diagrams that look art-directed instead of default-Mermaid ugly.
Design skillsopen-sourceCathryn Lavery (@cathrynlavery)github.com
Questions
- Do skills work outside Claude Code?
- Many are portable — they are structured markdown instructions. Some assume a specific runner's file layout or hooks.
- How many skills should I install?
- Fewer than you want to. Every loaded skill competes for attention; install the ones matching work you actually do weekly.