12 Best ECC (Everything Claude Code) Alternatives in 2026 (Free & Paid)
ECC (Everything Claude Code) is all-in-one agent harness: ~290 skills, 68 agents, hooks, memory and AgentShield scanning, priced at freemium. If it is too expensive, missing a feature or simply not for you, these are the strongest alternatives we have reviewed.
1
GitHub's community collection of Copilot agents, instructions, skills and plugins
★ 40k · +236 this week · MIT · updated 2026-10-01
8.0/10
What it does Awesome GitHub Copilot is a community collection of customisations for GitHub Copilot. It is hosted in the official github organisation. It gathers custom agents, instruction files, skills, hooks, agentic workflows and plugins that change how Copilot behaves in your editor and in the Copilot CLI. A companion website, awesome-copilot.github.com, adds full-text search, filters and a Learning Hub… Read more →
Pros
- Hosted in the github organisation with a searchable website and Learning Hub
- Plugins install directly from the Copilot CLI marketplace
Cons
- Third-party contributions vary in quality and need review before use
Pricing: Open source · github-copilot custom-agents instructions plugins agent-skills
2
Opinionated, hand-picked list of Claude Code skills, agents, hooks, plugins and guides
★ 55k · +343 this week · CC-BY-NC-ND-4.0 · updated 2026-10-02
7.9/10
What it does Awesome Claude Code, curated by hesreallyhim, is one of the best-known reading lists for Claude Code. It collects guides, skills, agents, plugins, hooks, status lines and tools, each with a short editorial note explaining why it is on the list. It is a discovery resource, not something you install. Many entries also show badges for their creation… Read more →
Pros
- Editorial notes plus freshness and licence badges on entries
- Updated almost daily with strict inclusion rules
Cons
- Non-commercial, no-derivatives licence
- Recent relaunch moved many older entries to an archive folder
Pricing: Free · awesome-list claude-code plugins hooks curated
3
Curated list of 1,000+ official and community Agent Skills, grouped by publisher
★ 35k · +269 this week · MIT · updated 2026-09-29
7.7/10
What it does Awesome Agent Skills, maintained by the VoltAgent team with community contributors, is a curated list of Agent Skills. It favours skills published by the engineering teams behind real products over mass-generated skill dumps. It is a discovery resource, not a package: each entry links to a skill that lives in someone else's repository, often through the companion… Read more →
Pros
- Emphasises skills published by the vendors themselves
- Per-agent skill path table and quality criteria
- Clear security notice with links to scanners
Cons
- Entries are curated, not audited
- README carries several sponsor placements
Pricing: Free · awesome-list agent-skills official-skills curated discovery
4
About 50 marketing skills for coding agents: CRO, SEO, copy, analytics, launch and growth
★ 52k · +782 this week · MIT · updated 2026-10-01
7.6/10
What it does Marketing Skills, by Corey Haines, is a library of Agent Skills for founders and technical marketers who already use coding agents. It is aimed at the work that comes after the product is built. Instead of generic advice, the agent follows a written playbook for tasks like auditing a landing page for conversions, adding analytics tracking, writing… Read more →
Pros
- Shared product-marketing context read by every skill
- Covers implementation tasks like tracking, schema and signup flows
- Multiple install routes including a Claude Code plugin
Cons
- Mostly marketing strategy rather than software engineering
- README promotes sponsored partner tools alongside neutral options
Pricing: Open source · marketing seo cro copywriting analytics
5
Hundreds of skills, agents and personas for engineering, product and business, with converters
★ 27k · +800 this week · MIT · updated 2026-08-30
7.3/10
What it does Claude Skills, by Alireza Rezvani, is one of the largest single-author skill libraries. It packages several hundred skills, over a hundred agents, personas and slash commands as Claude Code plugins. Conversion scripts turn the same content into the native formats of other coding tools. Many skills include Python helper scripts that use only the standard library, so… Read more →
Pros
- Very broad catalogue with stdlib-only Python helper scripts
- Converters for many agents' native formats
- Built-in skill security auditor
Cons
- Large share of non-coding content (marketing, C-suite, compliance)
- Hundreds of bundled scripts and a curl-to-bash path need review
Pricing: Open source · skill-library plugins devops personas multi-agent-tools
6
Curated list of Claude Skills, resources and tools
★ 15k · +72 this week · updated 2026-04-28
7.3/10
What it does Awesome Claude Skills, maintained by Travis (travisvn), is a curated awesome-list about Agent Skills for Claude. It is a reading and discovery resource, not something you install. It explains how skills load only when needed and how to enable them in Claude.ai, Claude Code and the Claude API. It then points to official and community skills worth… Read more →
Pros
- Good discovery starting point
- Clear categories plus tutorials
Cons
- A list, not installable skills itself
Pricing: Free · awesome list
7
67 full-stack skills for languages, frameworks, DevOps and security, plus Jira workflows
★ 12k · +90 this week · MIT · updated 2026-08-07
7.3/10
What it does Claude Skills by Jeff Smolinski (jeffallan) is a Claude Code plugin, published as fullstack-dev-skills, that bundles 67 role-style skills for full-stack development. Claude loads a skill when your request matches its area. For example, asking for JWT authentication in a NestJS API brings in the NestJS skill and its authentication reference file. Skills can also be chained… Read more →
Pros
- Broad coverage of languages, frameworks and infrastructure
- Progressive loading of about 370 reference files
- Workflow commands for epics via Jira and Confluence
Cons
- Generalist role-style skills overlap with what strong models already know
- Workflow commands require an Atlassian MCP server and are Claude Code-only
Pricing: Open source · full-stack frameworks devops claude-code-plugin jira
8
Curated list of practical Claude Skills for productivity and development
★ 76k · +712 this week · Apache-2.0 · updated 2026-09-18
7.2/10
What it does This is Composio's curated list of Agent Skills and plugins. It covers much more than coding: documents, data analysis, business and marketing, writing, media, productivity and security. Some skills live in the repository itself, and many entries link to other people's projects. Composio also uses the list to promote its own tools for connecting agents to SaaS… Read more →
Pros
- Broad coverage beyond coding
- Some skills included directly
Cons
- Mixed quality across linked skills
Pricing: Free · awesome list
9
Product management skills and chained workflows for Claude Code, Cowork and Codex
★ 27k · +128 this week · MIT · updated 2026-09-14
7.0/10
What it does PM Skills Marketplace is a plugin marketplace of product-management skills and chained commands for Claude Code and Claude Cowork. Each skill encodes a known product framework, such as opportunity solution trees, assumption mapping or a product strategy canvas, and walks the agent through it step by step, so product decisions and documents come out structured rather than… Read more →
Pros
- Commands chain framework-based skills into full workflows
- AI shipping kit documents and audits AI-built code before release
Cons
- Most content targets product managers rather than engineers
- Slash commands do not run outside Claude Code and Cowork
Pricing: Open source · product-management prd discovery strategy plugins
10
Registry and CLI to search, read, install and update human-authored Agent Skills
★ 308 · +1 this week · MIT · updated 2026-10-02
7.0/10
What it does skilld, by Harlan Wilton, is a registry and command-line tool for Agent Skills written by real maintainers in their own GitHub repositories. Its angle is provenance: every listed skill links to its source file and author, and the CLI records the commit it came from, so you can read a skill before your agent follows it and… Read more →
Pros
- Run a skill once without writing files
- Commit-pinned installs with digest and attestation checks
- One command targets many agents
Cons
- Hosted installs depend on the skilld.dev service
- Verified status proves provenance, not skill quality
Pricing: Open source · agent-skills cli registry provenance package-manager
11
Chinese-language vibe coding methodology, prompt library and skills for Codex CLI workflows
★ 17k · +647 this week · MIT · updated 2026-10-01
6.8/10
What it does Vibe Coding CN is a Chinese-language knowledge base and skill pack for AI-assisted development. Rather than a single tool, it packages a methodology the project calls 道法术器 (Tao-Fa-Shu-Qi: philosophy, method, process, tools) for turning ideas into maintainable products with an AI coding agent, built around Quality Gates — tests, CI/CD, type checking, schemas and checklists that constrain… Read more →
Pros
- Large, fast-growing community project with an actual methodology behind it, not just a link list
- Includes reusable skills (auto-skill, auto-tmux) alongside the docs, prompts and quality-gate guidance
- MIT licensed and free to use or fork
Cons
- Primarily Chinese-language, which limits accessibility for non-Chinese speakers
- More of a knowledge base to read through than a drop-in tool
Pricing: Open source · chinese methodology prompts codex-cli skills
12
Free multi-language course teaching vibe coding, from first prototype to Claude Code workflows
★ 20k · +58 this week · updated 2026-08-25
6.7/10
What it does Easy Vibe is an open, multi-language course on "vibe coding": going from a described idea to a working product with an AI coding agent. It's structured as a three-stage learning path, from beginner prototyping through full-stack development to more advanced Claude Code workflows, built by the Datawhale China open-source community. What is inside - Interactive tutorials with… Read more →
Pros
- Genuinely structured, beginner-to-advanced curriculum rather than a loose link list
- Localized into 10 languages, unusually broad for a community project
- Ships an llms.txt so agents can navigate it directly
Cons
- Non-commercial licence restricts reuse of the content itself
- It's a course to work through, not an installable skill or tool
Pricing: Free · course tutorial chinese multi-language beginner