Overview
ECC — The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond. 193,080 GitHub stars · JavaScript.
193,080 GitHub stars
Written in JavaScript
Topics: ai-agents, anthropic, claude, claude-code
Features & capabilities
Everything it does, in plain English.
Feature193,080 GitHub starsIncluded
FeatureWritten in JavaScriptIncluded
FeatureTopics: ai-agents, anthropic, claude, claude-codeIncluded
API AccessProgrammatic access available for developers.Available
PlatformsWeb · API
The honest take
Where it shines, where it stumbles.
✓ Pros
- ✓Active open-source community
- ✓Code is publicly auditable
! Watch-outs
- !Requires manual review before publishing
Who it's for
Where ECC pays for itself fast.
— Use case
AI-assisted development
— Use case
Integration into agentic workflows
Community reviews
Share your take on ECC
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Z
★★★★★
2 months ago
Happy with my subscription
Good value for the price. The API is well-documented and easy to work with. The collaboration features are genuinely well thought-out. Integration with my existing tools was seamless — no friction at all. The learning curve was steeper than expected. Looking forward to seeing how it improves.
M
★★★★★
2 months ago
Useful and reliable
Works really well for my use case. The free tier is genuinely generous compared to competitors. The onboarding flow was smooth and I was productive from day one. The API is well-documented and easy to work with. Would recommend to anyone in my industry.
R
★★★★★
3 months ago
Outstanding experience
Best-in-class, period. The ROI was clear within the first week of using it. Highly recommend.
N
★★★★★
7 months ago
Really good — a few things to improve
Works really well for my use case. The onboarding flow was smooth and I was productive from day one. Best tool in this category, hands down.
A
★★★★★
9 months ago
Exceptional quality and value
Worth every penny. The ROI was clear within the first week of using it. The free tier is genuinely generous compared to competitors. My team is very happy with the results.
H
★★★★★
1 years ago
Really good — a few things to improve
Does what it promises and does it well. It handles edge cases better than anything else I've tried. It handles edge cases better than anything else I've tried. Customer support response times could be faster. My team is very happy with the results.
S
★★★★★
1 years ago
Incredible — highly recommend
This is exactly what I was looking for. The AI doesn't just suggest — it learns from my preferences over time. The free tier is genuinely generous compared to competitors. Will continue using this long-term.
B
★★★★★
1 years ago
Useful and reliable
Works really well for my use case. It handles edge cases better than anything else I've tried. I use this daily and it's become essential to how I work. Reduced the time I spend on this task by about 70%. Customer support response times could be faster. A staple in my tech stack now.
S
★★★★★
1 years ago
Incredible — highly recommend
Absolutely love this tool. Customer support responded within hours and solved my issue. The interface is intuitive enough that I didn't need to read any docs. Pricing is fair for the value you get. A staple in my tech stack now.
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