Head-to-head · Build phase · Marketplace
Ecc vs Anthropic Agent Skills
For the Build phase, Ecc leads Anthropic Agent Skills on adoption - 250k vs 175k GitHub stars. Both are marketplaces; pick by fit, not just rank - the full side-by-side is below.
A side-by-side comparison of two marketplace options for the Build phase - adoption, what each is for, and how to install them.
Ranked by Skillselion · adoption from the skills.sh registry & GitHub.
Ecc vs Anthropic Agent Skills
| Ecc | Anthropic Agent Skills | |
|---|---|---|
| GitHub stars | 250k | 175k |
| Installs | 0 | 0 |
| Adoption rank (this phase) | #2 | #3 |
| Built for | Claude Code | Claude Code |
| What it is | ECC is a marketplace that installs a single harness-native operator plugin bundling agents, skills, hooks, rules, and reusable workflows for coding agents. | anthropic-agent-skills is Anthropic's Claude Code plugin marketplace that lists three plugins: a document-processing suite (xlsx, docx, pptx, pdf), a broad example-skills collection, and a Claude API documentation skill. |
| Install | /plugin marketplace add affaan-m/ECC | /plugin marketplace add anthropics/skills |
Common questions
Ecc vs Anthropic Agent Skills: which is better for build?
Ecc ranks higher by adoption (250k vs 175k GitHub stars), but both are marketplaces for the Build phase - choose by fit.
How do I install Ecc?
Run: /plugin marketplace add affaan-m/ECC
How do I install Anthropic Agent Skills?
Run: /plugin marketplace add anthropics/skills
More for the Build phase
See the full ranked shortlist of best marketplace options for build, browse every Marketplaces, or see every best-of shortlist.