Codex LSP

Call lsp MCP tools through the tool interface; lsp.*/mcp__lsp__* are tool-call names, not shell commands.

Tools

lsp.status: list configured, installed, missing, disabled, and active language servers.
lsp.diagnostics: check one file or directory for LSP diagnostics. Prefer severity: "error" after edits.
lsp.goto_definition: locate a symbol definition from file, line, and character.
lsp.find_references: find usages of a symbol across the workspace.
lsp.symbols: inspect document symbols or search workspace symbols.
lsp.prepare_rename: check whether a rename is valid at a position.
lsp.rename: apply a language-server workspace edit for a rename.

Project config lives at .codex/lsp-client.json; user config lives at ~/.codex/lsp-client.json.