Tons of Skills Claude skills

A very large marketplace of Claude Code plugins and skills (about 430 plugins, thousands of skills) with its own ccpi package manager.

Our verdict Recommended with caveats

Useful as a catalog, but at this scale quality and licensing vary by plugin, so pick and read individual items.

What Tons of Skills does

Tons of Skills is a catalog rather than a single skill pack. The README counts 428 catalog plugins, 2,713 marketplace-visible skills and 352 agent definitions across 19 categories, and GitHub reports more than 5,000 SKILL.md files in the repo. The whole marketplace installs with one Claude Code command, or you can pick individual plugins through the ccpi CLI from npm, for example ccpi install devops-automation-pack. A website at tonsofskills.com lets you browse.

External plugins are mirrored by default: the contributor's repo stays the source of truth, sources are pinned in a content lockfile, and upstream author, license and commit are recorded. First-party packages are published under the Intent Solutions npm scope. Individual skills vary a lot; the average SKILL.md is about 5.8 KB, and some plugins have references and scripts, such as an agency-os plugin and a 27 KB audit skill. The repo has CI and an eval set of only a few files. Quality, scope and license differ per plugin, so this is a place to find candidates, not a vetted bundle.

Good for

  • Browsing for niche plugins in areas like DevOps automation
  • Teams that want a pinned, mirrored source for third-party plugins
  • Looking for ideas before writing your own skill

Not for

  • Installing everything at once
  • Teams that need uniformly reviewed, consistently licensed skills

What's inside depth 2/5

Thousands of skills averaging 5.8 KB, mostly instructions with some plugins adding references and scripts, and only a few eval files across the repo.

Skills
5758
Reference docs
74
Scripts
1
Tests / evals
7
Templates
0
Avg SKILL.md
5.7 KB

Counted from the repository file tree. How we score depth.

Dependencies and costs

  • Node 22.12 or newer and pnpm for development; ccpi from npm for installs
  • Per-plugin requirements vary
  • Telemetry: none found in the files we read; the README mentions daily npm download statistics, which are gathered by the maintainers' CI.

Security review

Broad access

This skill asks for more access than most, or sends data to another service. That is usually a design choice rather than bad intent, but you should know before you install it.

  • Pre-approves broad shell commandsallowed-tools lists plain Bash (unrestricted shell) together with WebFetch and WebSearch; the same pattern is in pitch-copy, buzz-devrel, buzz-hn, buzz-outreach, ink-brief, ink-cluster, ink-distribute and pitch-landing.plugins/ai-agency/tonone/bundle/marketing-team/skills/pitch-launch/SKILL.md:4
  • Pre-approves broad shell commandsallowed-tools pre-approves wildcards over interpreters and file removal: Bash(bash:*), Bash(python3:*), Bash(rm:*), Bash(gh:*); hyperflow, agency-os and shipwright-pipeline also pre-approve Bash(npx:*), Bash(python:*), Bash(pip:*) and Bash(npm:*).plugins/ai-agency/hyperflow/skills/dispatch/SKILL.md:6

A very large marketplace of which we hold only the ai-agency plugins (hyperflow workflow skills, agency-os, shipwright-pipeline, a tonone marketing bundle). Several skills pre-approve broad shell access, including unrestricted Bash in the marketing bundle and python/bash/npx wildcards in hyperflow, so they can run commands without per-command prompts. The one script talks only to the Notion API with your Notion key; hyperflow's deploy and dispatch skills ask before pushing unless you pre-elect push=auto or pr=auto.

Worth knowing

  • Makes network requestsCalls only https://api.notion.com (query data source, fetch pages and blocks) and writes the result to a local state/todo-ids.json file.plugins/ai-agency/agency-os/skills/agency-os/scripts/query-tasks.py:50
  • Needs an API key for its own serviceReads NOTION_KEY from the environment or the repo-root .env file and sends it only to api.notion.com as a Bearer token.plugins/ai-agency/agency-os/skills/agency-os/scripts/query-tasks.py:30
  • Runs remote code at an unpinned versionTells the user to declare npx -y @notionhq/notion-mcp-server (no version) in .mcp.json, and pre-approves Bash(npx:*).plugins/ai-agency/agency-os/skills/agency-os/SKILL.md:59
  • Relies on a CLI or package we could not reviewagency-os relies on the Notion MCP server package; hyperflow also uses git, gh, npm and pnpm on the user's machine.plugins/ai-agency/agency-os/skills/agency-os/SKILL.md:59

What we checked

The repository (25517 files) on Oct 29, 2026. Not a full review: 25366 of 25517 files were not downloaded (large repository; we reviewed the skill folders); it relies on code outside the repository: @notionhq/notion-mcp-server (npm package used by agency-os); 25366 of 25517 repository files were not available to us; only the ai-agency plugins and one beads agent file were downloaded.

NVIDIA SkillSpector static scan: 176 pattern hits (Tool Misuse 67, Privilege Escalation 63, Excessive Agency 17, Agent Snooping 7, Prompt Injection 4, Memory Poisoning 4). The CRITICAL tainted-flow hits are query-tasks.py sending a Notion token read from env/.env to api.notion.com, which is the script's purpose. The many HIGH hits are the hyperflow security.md lists of blocked files and commands (.env, ~/.aws/credentials, rm -rf, git push --force) that describe what workers must not do, plus audit examples.

A review, not a certification. Skills change after we check them — read the files before installing.

License

MIT for the repository scaffolding and first-party tooling; each plugin carries its own license, and mirrored plugins keep the upstream license.

Can it run unattended?

Not really. It is a catalog; whether any plugin can run unattended depends on the plugin.

Alternatives to Tons of Skills

Claude Skills (alirezarezvani)

alirezarezvani/claude-skills

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borghei Claude-Skills

borghei/Claude-Skills

A large library of 385 business, product, compliance and engineering skills with 906 standard-library Python tools, under a Commons Clause license.

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wshobson/agents

wshobson/agents

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With caveats Check first Depth 2/5

Claude Code Templates

davila7/claude-code-templates

A large catalog and npx installer (aitmpl.com) of agents, commands, hooks, MCP configs and skills for Claude Code, much of it collected from other authors.

With caveats Broad access Depth 3/5

FAQ

What is Tons of Skills?

It is a marketplace of hundreds of Claude Code plugins and thousands of skills, with a ccpi package manager and a browsing site at tonsofskills.com.

How do I install Tons of Skills?

In Claude Code run /plugin marketplace add jeremylongshore/claude-code-plugins, or install the ccpi CLI with pnpm add -g @intentsolutionsio/ccpi and run ccpi install followed by a plugin name.

Is Tons of Skills safe to install?

Install individual plugins rather than the whole catalog, and read their skills first. The repo mirrors third-party work and each plugin has its own license and quality level.

Sources: GitHub repository (stars, license, file tree, last push Oct 29, 2026). Review based on the README and SKILL.md files as published.