4 PrepMint guides tagged troubleshooting — written from using the tools and checked against the vendor's own documentation.
Troubleshooting · 10 min read
The upload succeeded and the answer is about the wrong thing. Both vendors document the formats they accept; neither documents what happens between the upload and the model. Eight causes, each with a distinct fingerprint, and three probes that tell you what the model actually saw.
Troubleshooting · 9 min read
The server is green, the tool count is right, and the model answers without touching any of it. That is a selection problem, not a connection problem: ten causes with distinct fingerprints, from a six-word description to the thirtieth tool that pushed the right one out of reach.
Troubleshooting · 8 min read
A rule that sits in .cursor/rules and does nothing fails silently, and Cursor publishes no way to see which rules were applied. Ten causes with distinct fingerprints: the type you get by leaving fields blank, the .md that is invisible, and the team rule that outranks you.
Troubleshooting · 9 min read
An MCP server that adds cleanly and then shows no tools has about ten possible causes, and each leaves a different fingerprint. A symptom-first triage guide: what the /mcp statuses actually mean, why scope cannot be changed in place, and the config error that makes Claude run your URL as a local process.