For agents: This skill is authored in roboflow/computer-vision-skills. If your client already has it loaded as a skill (for example from a Roboflow plugin), use that copy. The skill://roboflow/<name>/SKILL.md MCP resources serve the same skills for clients that don't have them loaded.

Custom Weights Upload

Register weights from a model trained outside Roboflow (a laptop, a training server, Colab) so Roboflow can convert, host, and serve it.

Where the upload runs

Packaging reads the checkpoint from disk, so the upload always runs on the machine that has the weights — client-side, with the Python SDK flow below.

The models_custom_weights_upload_guide MCP tool is a guide, not an uploader: calling it returns this recipe and echoes back the arguments you passed (its upload_mode field says whether they describe a versioned or a workspace upload, or undetermined when they pin down neither). It never packages or uploads anything, because the MCP server cannot read the user's filesystem.