LSP
Language servers the agent runs for real code intelligence: diagnostics after each edit, go-to-definition, type information. Only Claude Code has this, and only inside a plugin. There's no tool-level file to put it in.
Widest support first. Hover any name for what it means.
| concept | support | Claude Code | Codex not shipped | Cursor not shipped | Fabro not shipped | Kimi Code not shipped |
|---|---|---|---|---|---|---|
| args | 1/5 | — | — | — | — | |
| command | 1/5 | — | — | — | — | |
| diagnostics | 1/5 | — | — | — | — | |
| env | 1/5 | — | — | — | — | |
| extensionToLanguage | 1/5 | — | — | — | — | |
| initializationOptions | 1/5 | — | — | — | — | |
| maxRestarts | 1/5 | — | — | — | — | |
| restartOnCrash | 1/5 | — | — | — | — | |
| settings | 1/5 | — | — | — | — | |
| shutdownTimeout | 1/5 | — | — | — | — | |
| startupTimeout | 1/5 | — | — | — | — | |
| transport | 1/5 | — | — | — | — | |
| workspaceFolder | 1/5 | — | — | — | — |