File and limit refusals
Why a file, image or upload was refused for its type or size, or because a limit was reached, and what to do instead.
Too much content
Code: content_too_large
You hit a size or count limit:
- Adding Knowledge documents: too many at once, or one document is too large. Add fewer at a time.
- Importing a skill from a GitHub link: the skill has more files than an import can fetch. Remove generated or vendored files from the skill folder.
- Inserting an artifact with a browser shortcut: the artifact is too large to insert. Install it with
deftroinstead.
Do not split one skill into several just to get under a limit. An artifact version allows up to 500 files of 1 MB each.
Binary files are not allowed
Code: binary_file_not_allowed
Only text files can be published or added, because a reviewer has to be able to read them. Remove the file the message names. Screenshots belong in the artifact's Previews, not in its files.
This file type is not allowed
Code: file_type_not_allowed
Executables, libraries, disk images and archives (for example .exe, .jar, .dmg or .zip) are refused. Ship scripts as readable source, such as .sh, .py or .js. Knowledge only takes text and Markdown.
The upload is too big
Code: payload_too_large
A sponsored ad file is over the size allowed for its kind. Export a smaller image or a shorter video.
A limit was reached
Code: limit_reached
An account may only have so many Knowledge collections, a collection so many documents, and an artifact so many preview images and one demo link. Delete something you no longer need, or remove the existing demo link first.
The image was refused
Code: invalid_image
For previews, logos and Feedback screenshots. The image was not found on the image host (upload it again), or it is the wrong format, too large, or too many pixels across. Previews take JPG, PNG, WebP or GIF; a logo must be a square PNG, JPG or WebP. The message names the problem.
The image could not be checked
Code: image_check_unavailable
Deftro could not confirm your upload with the image host. Try again in a moment.
Checked against the product on .
Create or upload an artifact
Press Add to upload a SKILL.md, write a skill or prompt in the editor, or import from GitHub. Every artifact needs a name and a description.Your storage quota
Each person can store 100 MB. Check usage in Settings > Usage & plan; free space by deleting Knowledge documents, Context spaces or previews.Give your agents documents to search with Knowledge
Knowledge (Beta) holds text and Markdown documents, private to you or shared with an organisation, that your agents search through the MCP server.