Canvas-MCP
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| CANVAS_OUTPUT_DIR | No | Output directory for PNGs. Defaults to ~/.rhode/canvas/ |
Capabilities
Features and capabilities supported by this server
| Capability | Details |
|---|---|
| tools | {
"listChanged": false
} |
| experimental | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| render_canvasA | Render a canvas diagram from a YAML recipe string. Supports hierarchical format (networks/factories/machines/nodes) or a simplified format (flat list of nodes with inputs/outputs). Returns the path to the rendered PNG file. |
| create_canvasA | Create a canvas diagram from a structured description. Provide a title, nodes, and connections — the tool handles layout and rendering. Returns the path to the rendered PNG and the generated YAML recipe. |
| list_templatesA | List available canvas recipe templates that can be used as starting points. |
| get_templateA | Get the YAML content of a specific template by name. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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