Diagnostic

What it shows

The Diagnostic panel lists language servers used by AgentsOS for diagnostics on edits and cross-project symbol search.

Each row shows:

• Language display name.
• Whether its binary is installed.
• Binary path when installed.
• Install hint when missing.
• Active session count when one or more LSP sessions are running.

Recheck

Use Recheck to refresh language-server detection. Install a missing binary, recheck, then open a matching file to start using that language server.

When to use it

Open Diagnostic when symbols are not resolving, diagnostics are missing, or the agent is working in a language whose language server may not be installed.