Project comparison

langchain vs ECC

Compare adoption, momentum, maintenance health, and project basics before choosing which tool to evaluate deeper.

langchain

The agent engineering platform.

Best matched with other agent tools.

145.8K

Stars

+599

Weekly

84/100

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.

252.1K

Stars

+52.6K

Weekly

95/100

Health

Quick Take

Adoption

ECC has the larger GitHub footprint with 252.1K stars.

Momentum

ECC is currently growing faster at +52.6K stars this week.

Maintenance

ECC has the stronger automated maintenance signal at 95/100. 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	langchain	ECC
Evidence status	Recently verified· 1d ago	Recently verified· 1d ago
GitHub stars	145.8K	252.1K
Weekly growth	+599	+52.6K
Health score	Strong84/100

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