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Project comparison
Harnessrouter vs ECC
Compare adoption, momentum, maintenance health, and project basics before choosing which tool to evaluate deeper.
Harnessrouter
HarnessRouter Community Edition: the self-hosted, Apache-2.0 edition of the unified interface for agent harnesses. Run Codex, Claude Code, Hermes, and more through one API, with sessions, streaming, files, cancellation, and failure handling. Implements the Unified Harness Protocol (UHP), an open standard. Your keys, your infrastructure.
Best matched with other agent tools.
555
Stars
0
Weekly
64/100
Health
ECC
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.
272.5K
Stars
+52.6K
Weekly
93/100
Health
Quick Take
Adoption
ECC has the larger GitHub footprint with 272.5K stars.
Momentum
ECC is currently growing faster at +52.6K stars this week.
Maintenance
ECC has the stronger automated maintenance signal at 93/100. This is not a security or fit verdict.
Side-by-side evidence
Use these signals to narrow your choice, then confirm setup, license, and fit upstream.
| Signal | Harnessrouter | ECC |
|---|---|---|
| Evidence status | Basic listing· 2026-10-04 09:18 UTC | Verified snapshot· 2026-10-04 09:19 UTC |
| GitHub stars | 555 | 272.5K |
| Weekly growth | 0 | +52.6K |
| Health score | Healthy64/100 | Strong93/100 |
| Contributors | 8 | 295 |
| Commits per week | 15.5 | 62.2 |
| Open issues | 2 | 105 |
| Language | Python | JavaScript |
| License | Apache-2.0 | MIT |
| Last commit | 2026-08-24 01:34 UTC | 2026-10-02 02:01 UTC |
| Last release | v0.9.1 | v2.0.0 |
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