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GitHub vs JSR

GitHub scores higher on the AgentReady, 55/100 against 50/100. They differ on 14 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

GitHub. GitHub is a platform where developers, agents, and code come together for collaboration.

JSR. The open-source package registry for modern JavaScript and TypeScript.

Where GitHub is ahead

GitHub passes search discoverable, clear canonical domain, llms.txt published and llms-full.txt / full agent docs, and JSR does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds adopt: agent-compatible signup flow. JSR misses it.

And on operate, structured, predictable output, rate-limit behavior predictable and observable execution. JSR misses those.

Where JSR is ahead

JSR passes machine-readable metadata, and GitHub does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds understand: authentication documented and pricing understandable. GitHub misses those.

And on adopt, self-service signup and free trial or free allowance. GitHub misses those.

Finally, on operate, agent compatibility verified. GitHub misses it.

What neither does

Both fail structured api reference, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented, no mandatory sales call, programmatic credential creation, fast time to first request, copyable quickstart, machine-readable errors, retry behavior documented, idempotency support. If your agent needs any of those, you will be building it yourself either way.

Score, pillar by pillar

The AgentReady splits into four pillars, scored separately, because a product can be easy to find and still impossible to adopt.

Discover is whether an agent can find the product at all without being told it exists. GitHub leads 93 to 67. GitHub misses machine-readable metadata; JSR misses search discoverable, clear canonical domain, llms.txt published, llms-full.txt / full agent docs.

Understand. JSR leads 31 to 15. GitHub misses structured api reference, openapi / spec quality, authentication documented, pricing understandable, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; JSR misses structured api reference, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented.

Adopt. JSR leads 60 to 52. GitHub misses self-service signup, no mandatory sales call, programmatic credential creation, free trial or free allowance, fast time to first request, copyable quickstart; JSR misses no mandatory sales call, agent-compatible signup flow, programmatic credential creation, fast time to first request, copyable quickstart.

Operate. GitHub leads 59 to 41. GitHub misses machine-readable errors, retry behavior documented, idempotency support, agent compatibility verified; JSR misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution.

Pricing

GitHub does not publish a machine-readable starting price. JSR does not publish one and has a free tier.

Signal by signal

Which to pick

GitHub clears more of the signals an agent needs, so it is the safer default for unattended use. Full profiles: GitHub and JSR. Alternatives to each: GitHub, JSR.

An agent can fetch this as data: POST /v1/compare {"slugs": ["github", "jsr"]}