Cloud plugin slash commands could not be resolved for this followup

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

I am in a Cloud Agent chat issuing a chat follow-up with an image attached and trying to include a slash command for UI/frontend reference skills to improve an HTML report generator.

Steps to Reproduce

Write a follow-up, attach a screenshot, include /shadcn skill slash command to cloud agent.

Expected Behavior

Issue the message, upload the image, reference the slash command without error.

Screenshots / Screen Recordings

Operating System

MacOS

Version Information

Version: 3.15.6
VS Code Extension API: 1.128.0
Commit: a1f686545fd0ce8917bbd2449f733551a9bce420
Date: 2026-08-06T01:41:03.876Z
Layout: Agent Window
Build Type: Stable
Release Track: Default
Electron: 40.10.3
Chromium: 144.0.7559.236
Node.js: 24.15.0
V8: 14.4.258.32-electron.0
xterm.js: 6.1.0-beta.291
OS: Darwin arm64 25.2.0

For AI issues: which model did you use?

Cursor Grok 4.5 High Fast

For AI issues: add Request ID with privacy disabled

failed_precondition] Cloud plugin slash commands could not be resolved for this followup. Refresh them and try again. Request ID: 575e42ff-5856-449c-924f-b2526b578aae

Does this stop you from using Cursor

Sometimes - I can sometimes use Cursor

I do want to note that going into the Web UI for the Cloud Agent worked fine, this is a strictly IDE/Agents native app issue.

Hey!
Quickest fix: start a new cloud agent and use /shadcn there - a fresh session picks up your currently installed plugins, so it resolves and the skill actually runs (which is why the web run worked). Once an agent is running its plugin set is locked, so “Refresh and try again” can’t pull shadcn in mid-session. This is an issue we’re tracking.

Heads-up: just rewording it in plain words (“use the shadcn skill…”) clears the error but won’t actually run the skill if it wasn’t in that session - so a new agent is the reliable path.

Let me know if a fresh agent still doesn’t pick up shadcn.

Hey Mohit, I am unsure about your fix relevance here because the skill(s) in question had already been setup and configured and present in the Cursor IDE/Agents & Cloud Agents environments prior to this conversation thread’s genesis. Simultaneously the same prompt errored on IDE locally but worked fine in the web Cloud Agent thread (same chat thread, just different interface). So same session, same plugin set.

Am I missing something?