About CWork101

What this is

CWork101 is an independent reference for the whole Claude ecosystem — the products, the models, Claude Code, the agent stack, the developer platform, the plans and limits, the Academy courses, and the community tools built on top of all of it.

It exists because that ecosystem outgrew its own documentation. Claude, Claude Code, Cowork, Design, Science, Security, the browser and Slack integrations, MCP, Skills, Plugins, Connectors, Hooks, Subagents, Agent Teams, the Agent SDK, the API and three cloud resellers are all separately documented, on separate sites, under separate navigation. Each of those docs answers "how do I use this". Almost none of them answer the questions people actually arrive with:

• What is this thing, and how is it different from that other thing with a similar name?
• Is it included in my plan, and on which surface?
• Did it get renamed, and when?
• Is it still supported, and if not, what replaced it?

What this is not

It is not a documentation mirror. Re-publishing official docs adds nothing — several projects already do it, and they do it more completely than a reference like this ever could. It is also not a news blog, not a course, and not an AI-rewritten article farm. The value here is structure: entities, relationships, availability, and dated change history.

When you need to know how to do something, go to the official documentation — every page here links to it. When you need to know what something is, whether it applies to you, and whether what you read six months ago is still true, that is what this is for.

Independence

This site uses Anthropic's product names to describe Anthropic's products, which is what those names are for. It does not use Anthropic's logo, wordmark, typography or brand assets, and does not describe itself as official.

The palette here is warm because the subject is, and a reference that looks alien to the thing it documents is harder to read. But warmth is not a brand: the wordmark, the typeface, the layout, the colour values and the graph-paper visual language are all this site's own. If you ever mistake this for an Anthropic property, that is a bug —tell us.

Third-party projects listed in the ecosystem directory are labelled Community unless Anthropic maintains them. Listing is not endorsement, by this site or by Anthropic.

The name

CWork101 is read as "Claude Work 101." The cwork is Claude work — the whole practice of working with it, not any one product. It is deliberately notCowork, which is a single product this reference happens to cover in three pages out of a hundred.

The domain stays oblique; the pages say the word plainly, which is where a trademarked name belongs. There is a Claude 101 page, and it does what the name promises: ten questions, plain answers, then a route onward.

The reference does not stop at 101. Model retirement schedules, enterprise controls, rate-limit tiers, cloud billing units and system cards are all here, and none of them are beginner material. "101" marks the front door, not the ceiling.

How it is maintained

Every entry carries a last verified date and the sources it was checked against, graded into four tiers. Pages that go more than 90 days without a check are listed publicly on the change log rather than quietly left to rot. Changes that matter — renames, availability shifts, deprecations — are recorded against the page they affect and published to the feed.

Found something wrong or out of date? Send a correction — a source link is worth more than a long explanation.