Project comparison
Compare adoption, momentum, maintenance health, and project basics before choosing which tool to evaluate deeper.
AAS Core is the local, agent-first control plane for complete catalog discovery, agent-owned selection, stack validation, and planning, backed by 1,987+ agentic skills. Includes CLI, local MCP, catalog, plugins, and Workbench.
Best matched with other agent tools.
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
Best matched with other agent tools.
ECC has the larger GitHub footprint with 232.2K stars.
ECC is currently growing faster at +52.6K stars this week.
Antigravity Awesome Skills has the stronger automated maintenance signal at 100/100. This is not a security or fit verdict.
Use these signals to narrow your choice, then confirm setup, license, and fit upstream.
| Signal | Antigravity Awesome Skills | ECC |
|---|---|---|
| Evidence status | Basic listing· 2d ago | Recently verified· 2d ago |
| GitHub stars | 43.7K | 232.2K |
| Weekly growth | +6.5K | +52.6K |
| Health score | Strong100/100 |
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| Contributors | 300 | 295 |
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| Commits per week | 64.6 | 62.2 |
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| Open issues | 2 | 105 |
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| Language | Python | JavaScript |
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| License | MIT | MIT |
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| Last commit | 3d ago | 2d ago |
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| Last release | v15.3.0 | v2.0.0 |
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