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cadence vs harness

cadence and harness share 6 technologies: pq, Postgres, github.com/jmoiron/sqlx, github.com/golang-jwt/jwt/v5, golang.org/x/oauth2, and github.com/aws/aws-sdk-go. Both are written in Go.

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What they share and what sets them apart

cadence-workflow

cadence

Cadence is a distributed, scalable, durable, and highly available orchestration engine to execute asynchronous long-running business logic in a scalable and resilient way.

Go9.6kRead on November 14, 2026, at commit c2a373cWhat is cadence built with?

Only in cadence

In common

harness

harness

Harness Open Source is an end-to-end developer platform with Source Control Management, CI/CD Pipelines, Hosted Developer Environments, and Artifact Registries.

Go38.9kRead on November 14, 2026, at commit 85bc2b9What is harness built with?

Only in harness

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
cadence777,783 lines written1,051 code files
harness591,817 lines written3,649 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
cadence0.2% of its commits signed by AIWith GitHub Copilot, Claude Code, and Cursor
harness0% of its commits signed by AI
ActivityFrom GitHub and its history, on the day SeeRepo read it.
cadenceLast push November 14, 20265,945 commits9,556 stars
harnessLast push November 12, 20264,031 commits38,905 stars
TestsThe files that test the code, and the share of code files a test imports.
cadence872 test files83.6% of its code files have a test that imports them
harness502 test files21% of its code files have a test that imports them

Frequently asked questions

Which is bigger, cadence or harness?
cadence, with 777,783 lines written; harness has 591,817.

The proof: cadence-workflow/cadence's code at commit c2a373c

Which has more GitHub stars, cadence or harness?
harness, with 38,905 stars; cadence has 9,556.

The proof: harness/harness on GitHub

Which has more tests, cadence or harness?
cadence, with 872 test files; harness has 502.

The proof: cadence-workflow/cadence's code at commit c2a373c

Which was updated more recently, cadence or harness?
cadence: its last push was on November 14, 2026, and harness's on November 12, 2026.

The proof: cadence-workflow/cadence's commits on GitHub

Which has more commits signed by AI, cadence or harness?
cadence: an AI signed 0.2% of its commits, with GitHub Copilot, Claude Code, and Cursor.

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