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ECC
ECC is a GitHub repository ranked #1 on the Most Starred Developer Tool Repos on GitHub chart with 301,661 stars.
Source description: The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
Change: +635 stars between recorded observations on 2026-11-11 and 2026-11-12.
Last verified · 2026-11-12T11:57:46.871Z
Reported license: MIT. Check the source license and terms for permissions, restrictions, and any costs.
Last commit
Metric source · method 1.0.0 · hash 4090
Recorded stars trend
30 dated observations · 2026-10-14 to 2026-11-12. Missing dates are not filled.
Metric definition: github:stars:all-time
Observed range: 278,876 – 301,661 stars
View dated observations
| Date (UTC) | stars |
|---|---|
| 2026-10-14 | 278,876 |
| 2026-10-15 | 279,743 |
| 2026-10-16 | 280,726 |
| 2026-10-17 | 281,767 |
| 2026-10-18 | 282,794 |
| 2026-10-19 | 283,559 |
| 2026-10-20 | 284,369 |
| 2026-10-21 | 285,130 |
| 2026-10-22 | 285,993 |
| 2026-10-23 | 286,786 |
| 2026-10-24 | 287,524 |
| 2026-10-25 | 288,310 |
| 2026-10-26 | 289,139 |
| 2026-10-27 | 290,212 |
| 2026-10-28 | 291,262 |
| 2026-10-29 | 292,142 |
| 2026-10-30 | 292,991 |
| 2026-10-31 | 293,634 |
| 2026-11-01 | 294,355 |
| 2026-11-02 | 295,131 |
| 2026-11-03 | 296,070 |
| 2026-11-04 | 296,841 |
| 2026-11-05 | 297,529 |
| 2026-11-06 | 298,191 |
| 2026-11-07 | 298,813 |
| 2026-11-08 | 299,383 |
| 2026-11-09 | 299,928 |
| 2026-11-10 | 300,473 |
| 2026-11-11 | 301,026 |
| 2026-11-12 | 301,661 |
Quick answers
- What is ECC?
- ECC is a GitHub repository ranked #1 on the Most Starred Developer Tool Repos on GitHub chart with 301,661 stars.
- What license applies to ECC?
- Reported license: MIT. Check the source license and terms for permissions, restrictions, and any costs.
- How is ECC ranked?
- This chart orders entries by stars, not quality or suitability. Nearby entries share a chart, but are not necessarily substitutes. Method 1.0.0; snapshot hash 4090.