Empty output
Disable operations from the end of the recipe backwards until output returns. Then inspect the first step that turns valid input into nothing. Confirm its required argument format and input type.
Garbled characters
The bytes may be valid while the display encoding is wrong. Change the output character encoding or inspect the bytes as hexadecimal before applying text operations.
Decompression fails
Verify the file signature after decoding its text wrapper. 1f 8b suggests Gzip; Zlib, raw Deflate, ZIP, and Brotli require different operations.
A saved workflow disappeared
Private browsing, storage cleanup, or blocked local storage can remove named workflows. Keep portable recipe text in version control for important processes.
An automated recipe is rejected
WebMCP enforces operation-count, input, argument, intermediate-output, final-output, and execution-time bounds. Reduce the sample, split the workflow, or run it interactively in the workspace.
Still stuck
Create a minimal reproduction containing a non-sensitive sample, the recipe text, expected output, actual output, and the first operation where they differ.