Anthropic Is Developing a New ‘Brush’ Feature for Claude’s Prompt Composer

Anthropic is developing a new beta feature called “Brush” for the prompt composer in its Claude AI assistant, according to a feature discovery reported on November 12, 2026. The feature has appeared in Claude’s development interface and is labelled as being under active development. However, Anthropic has not publicly explained what Brush does, how users will interact with it or when it could become available.

The discovery has generated interest because the prompt composer is where users write instructions and provide context to Claude. A new tool in this area could potentially change how people create, edit or refine prompts. Some observers have speculated that Brush may be connected to an earlier Claude feature called Sketch, but there is no confirmation from Anthropic that the two are related.

What Is Anthropic’s Brush Feature?

Brush is the name of a feature currently being developed for Claude’s prompt composer. Its presence in development interfaces suggests that Anthropic is experimenting with additional functionality inside the area where users prepare their prompts.

The available information remains limited to three key details:

• The feature is called Brush.
• It is intended for Claude’s prompt composer.
• It is labelled as a beta feature and remains under active development.

Anthropic has not released official documentation describing its capabilities. It has also not announced whether Brush will be available across Claude’s Free, Pro, Team or Enterprise plans.

The name has prompted speculation that the feature could involve visual editing, drawing or more interactive ways of refining prompts. However, these possibilities remain unverified. It would be premature to describe Brush as an image-editing or drawing tool without further information from the company.

Could Brush Be Related to Claude’s Earlier Sketch Feature?

One possibility being discussed is that Brush could be connected to Claude’s earlier Sketch feature.

The speculation centres on whether Brush represents a redesigned version of Sketch, an expansion of its capabilities or a replacement. The names suggest a possible relationship with visual or interactive workflows, but Anthropic has not confirmed any connection.

If the two features are related, Brush could represent another step towards making Claude’s prompt-building experience more interactive. Instead of relying entirely on written instructions, users might eventually be able to refine certain inputs through additional interface controls.

For now, there is not enough publicly available information to establish that this is the intended direction.

Claude’s Interface Is Receiving More Features

The appearance of Brush comes as Anthropic continues to make changes to Claude’s interface and its broader product ecosystem.

Around November 10, 2026, interactive connectors were also reported to have appeared in Claude’s interface. These developments suggest that Anthropic is continuing to work on how users interact with the assistant, beyond improvements to the underlying AI models.

The prompt composer is an important part of this experience. It determines how users provide instructions, attach context and organise tasks before Claude generates a response.

Improving this interface could make Claude easier to use for people who rely on it for writing, research, coding and other complex workflows. Even relatively small changes to the prompt-building process could affect how efficiently users communicate with the model.

However, the appearance of multiple features in development does not necessarily mean they will be released together or become available to all users.

Why a Better Prompt Composer Could Matter

Prompting remains an important part of using generative AI systems. Users often need to provide detailed instructions, establish context and refine their requests to obtain more useful responses.

A more capable prompt composer could potentially reduce the effort involved in this process.

For example, if Brush eventually introduces visual or interactive prompt controls, it might allow users to adjust certain elements without repeatedly rewriting instructions. Such functionality could be useful for people who work with complex prompts or regularly use Claude for structured tasks.

Potential benefits could include:

• Simpler prompt creation: Additional controls could make it easier to organise instructions.
• Faster editing: Users might be able to refine prompts without rewriting entire requests.
• More interactive workflows: New composer tools could offer alternatives to text-only input.
• Improved accessibility: Visual controls could make some prompting tasks easier for less experienced users.

These are possible benefits of a more advanced prompt composer, not confirmed capabilities of Brush.

What We Know About the Feature’s Availability

Brush remains in development, and Anthropic has not provided a public release schedule.

There is currently no confirmed information about supported devices, subscription requirements, regional availability or whether the feature will be included in Claude’s standard interface.

The beta label also does not guarantee a public launch. Software features can change significantly during development, remain restricted to internal testing or be cancelled before reaching users.

Users should therefore treat Brush as an early product discovery rather than a feature they can currently access.