ECC
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond. observed · 2026-08-28
Health v2 · maintenance only
81/100
- Activity 99
- Release rhythm 95
- Longevity 16
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 6
- age_days: 228
- days_rel: 37
- days_push: 8
- n_releases_24m: 14
Adoption not part of the score
243524 stars · 36832 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
ECC is an open-source 'agent harness operating system' that provides 261 skills, 64 agents, and 84 commands to optimize AI coding agents like Claude Code, Codex, Cursor, and OpenCode. It bundles workflow skills, continuous-learning instincts, memory, and AgentShield security scanning, with an optional commercial GitHub App layer for repo analysis and team rollout.
Use cases
- optimize my claude code agent performance
- add reusable skills and commands to my coding agent
- scan agent sessions for security risks
- turn repo history into reusable agent defaults
- set up tdd and verification workflows for ai coding agents
- make my coding agent learn from past sessions
- manage mcp servers and agent context across tools
When to choose
- you use Claude Code, Codex, Cursor, or OpenCode daily and want structured skills, memory, and security guardrails
- you want a curated catalog of agent skills instead of writing your own prompts and workflows
- you need session-level security scanning and learned instincts with confidence scoring
- you want a GitHub App that converts repo conventions into reusable agent defaults
When to avoid
- you don't use AI coding agents and just need a plain linter or CI tool
- you need a lightweight setup and don't want a large skill/agent catalog in your repos
- you require private-repo GitHub App analysis without a paid plan
- you prefer fully self-contained tooling with no commercial upsell layer
Facets
framework · maturity active
agent-framework mcp security developer-tools prompt-engineering workflow-automation code-review developer-tools security cli cross-platform cloud claude-code codex cursor opencode agent-harness skills instincts agentshield github-app context-management tdd-workflow eval-harness ai-agents automation nodejs docker
5 sources
- readme: https://github.com/affaan-m/ECC · fetched 2026-08-28 · 98bdb870e8ce
- homepage: https://ecc.tools · fetched 2026-08-28 · 0774380ef937
- site_page: https://ecc.tools/pricing · fetched 2026-08-28 · 276e8282fae1
- site_page: https://ecc.tools/skills · fetched 2026-08-28 · d9574a435d3d
- site_page: https://ecc.tools/changelog · fetched 2026-08-28 · ed1e85d0fd8e
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| affaan-m/ECC | main | 81 |
| affaan-m/agentshield | plugin | 71 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem