refactor(lsp): clean up lsp_servers references and update prompts to use PascalCase

- Remove dead lsp_servers function from tools.ts
- Update utils.ts to reference LspServers (OpenCode built-in)
- Update AGENTS.md: 7 tools → 3 tools
- Update init-deep.ts prompts to use PascalCase OpenCode tools
- Update refactor.ts prompts to use PascalCase OpenCode tools

src/tools/lsp/tools.ts

@@ -1,5 +1,4 @@
 import { tool, type ToolDefinition } from "@opencode-ai/plugin/tool"
-import { getAllServers } from "./config"
 import {
   DEFAULT_MAX_DIAGNOSTICS,
 } from "./constants"
@@ -68,28 +67,6 @@ export const lsp_diagnostics: ToolDefinition = tool({
   },
 })
 
-export const lsp_servers: ToolDefinition = tool({
-  description: "List available LSP servers and installation status.",
-  args: {},
-  execute: async (_args, context) => {
-    try {
-      const servers = getAllServers()
-      const lines = servers.map((s) => {
-        if (s.disabled) {
-          return `${s.id} [disabled] - ${s.extensions.join(", ")}`
-        }
-        const status = s.installed ? "[installed]" : "[not installed]"
-        return `${s.id} ${status} - ${s.extensions.join(", ")}`
-      })
-      const output = lines.join("\n")
-      return output
-    } catch (e) {
-      const output = `Error: ${e instanceof Error ? e.message : String(e)}`
-      return output
-    }
-  },
-})
-
 export const lsp_prepare_rename: ToolDefinition = tool({
   description: "Check if rename is valid. Use BEFORE lsp_rename.",
   args: {

src/tools/lsp/utils.ts

@@ -55,7 +55,7 @@ export function formatServerLookupError(result: Exclude<ServerLookupResult, { st
       `Supported extensions: ${server.extensions.join(", ")}`,
       ``,
       `After installation, the server will be available automatically.`,
-      `Run 'lsp_servers' tool to verify installation status.`,
+      `Run 'LspServers' tool to verify installation status.`,
     ].join("\n")
   }