refactor: remove 8 redundant base tools and slim down descriptions

Remove healthCheck, appendTextFile, createDirectory, deleteDirectory,
deleteFile, getFileInfo, listDirectory, and moveFile — thin wrappers
that exec already covers. Reduces tool count from 18 to 10 and cuts
token usage by shortening all remaining tool descriptions to one-liners.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: FL4TLiN3

apps/base/README.md

@@ -39,22 +39,12 @@ registerWriteTextFile(server)
 ### File Operations
 - `readTextFile` - Read text files with optional line range
 - `writeTextFile` - Create or overwrite text files
-- `appendTextFile` - Append content to existing files
 - `editTextFile` - Replace text in existing files
-- `deleteFile` - Remove files
-- `moveFile` - Move or rename files
-- `getFileInfo` - Get file metadata
 - `readImageFile` - Read image files (PNG, JPEG, GIF, WebP)
 - `readPdfFile` - Read PDF files
 
-### Directory Operations
-- `listDirectory` - List directory contents
-- `createDirectory` - Create directories
-- `deleteDirectory` - Remove directories
-
 ### Utilities
 - `exec` - Execute system commands
-- `healthCheck` - Check Perstack runtime health status
 - `todo` - Task list management
 - `clearTodo` - Clear task list
 - `attemptCompletion` - Signal task completion (validates todos first)

apps/base/src/index.ts

@@ -6,16 +6,9 @@ export {
   createBaseServer,
   registerAllTools,
 } from "./server.js"
-export * from "./tools/append-text-file.js"
 export * from "./tools/attempt-completion.js"
-export * from "./tools/create-directory.js"
-export * from "./tools/delete-directory.js"
-export * from "./tools/delete-file.js"
 export * from "./tools/edit-text-file.js"
 export * from "./tools/exec.js"
-export * from "./tools/get-file-info.js"
-export * from "./tools/list-directory.js"
-export * from "./tools/move-file.js"
 export * from "./tools/read-image-file.js"
 export * from "./tools/read-pdf-file.js"
 export * from "./tools/read-text-file.js"

apps/base/src/lib/safe-file.test.ts

@@ -1,11 +1,6 @@
 import fs from "node:fs/promises"
 import { afterEach, describe, expect, it } from "vitest"
-import {
-  isSymlinkProtectionFullySupported,
-  safeAppendFile,
-  safeReadFile,
-  safeWriteFile,
-} from "./safe-file.js"
+import { isSymlinkProtectionFullySupported, safeReadFile, safeWriteFile } from "./safe-file.js"
 
 const testFile = "safe-file.test.txt"
 const testSymlink = "safe-file.test.link"
@@ -67,29 +62,6 @@ describe("safe-file", () => {
     })
   })
 
-  describe("safeAppendFile", () => {
-    it("appends content to file", async () => {
-      await fs.writeFile(testFile, "hello")
-      await safeAppendFile(testFile, " world")
-      const content = await fs.readFile(testFile, "utf-8")
-      expect(content).toBe("hello world")
-    })
-
-    it("rejects symbolic links", async () => {
-      await fs.writeFile(testFile, "content")
-      try {
-        await fs.symlink(testFile, testSymlink)
-        await expect(safeAppendFile(testSymlink, "malicious")).rejects.toThrow("symbolic link")
-      } catch (error) {
-        const err = error as { code?: string }
-        if (err.code === "EPERM" || err.code === "ENOTSUP") {
-          return
-        }
-        throw error
-      }
-    })
-  })
-
   describe("isSymlinkProtectionFullySupported", () => {
     it("returns boolean indicating O_NOFOLLOW support", () => {
       const result = isSymlinkProtectionFullySupported()

apps/base/src/lib/safe-file.ts

@@ -39,15 +39,3 @@ export async function safeReadFile(path: string): Promise<string> {
     await handle?.close()
   }
 }
-
-export async function safeAppendFile(path: string, data: string): Promise<void> {
-  let handle: FileHandle | undefined
-  try {
-    await checkNotSymlink(path)
-    const flags = constants.O_WRONLY | constants.O_APPEND | O_NOFOLLOW
-    handle = await open(path, flags)
-    await handle.writeFile(data, "utf-8")
-  } finally {
-    await handle?.close()
-  }
-}

apps/base/src/server.ts

@@ -1,16 +1,8 @@
 import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js"
 import packageJson from "../package.json" with { type: "json" }
-import { registerAppendTextFile } from "./tools/append-text-file.js"
 import { registerAttemptCompletion } from "./tools/attempt-completion.js"
-import { registerCreateDirectory } from "./tools/create-directory.js"
-import { registerDeleteDirectory } from "./tools/delete-directory.js"
-import { registerDeleteFile } from "./tools/delete-file.js"
 import { registerEditTextFile } from "./tools/edit-text-file.js"
 import { registerExec } from "./tools/exec.js"
-import { registerGetFileInfo } from "./tools/get-file-info.js"
-import { registerHealthCheck } from "./tools/health-check.js"
-import { registerListDirectory } from "./tools/list-directory.js"
-import { registerMoveFile } from "./tools/move-file.js"
 import { registerReadImageFile } from "./tools/read-image-file.js"
 import { registerReadPdfFile } from "./tools/read-pdf-file.js"
 import { registerReadTextFile } from "./tools/read-text-file.js"
@@ -32,19 +24,11 @@ export function registerAllTools(server: McpServer): void {
   registerTodo(server)
   registerClearTodo(server)
   registerExec(server)
-  registerGetFileInfo(server)
-  registerHealthCheck(server)
   registerReadTextFile(server)
   registerReadImageFile(server)
   registerReadPdfFile(server)
   registerWriteTextFile(server)
-  registerAppendTextFile(server)
   registerEditTextFile(server)
-  registerMoveFile(server)
-  registerDeleteFile(server)
-  registerListDirectory(server)
-  registerCreateDirectory(server)
-  registerDeleteDirectory(server)
 }
 
 /**

apps/base/src/tools/append-text-file.test.ts

@@ -1,5 +1,4 @@
 import type { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js"
-import { dedent } from "ts-dedent"
 import { errorToolResult, successToolResult } from "../lib/tool-result.js"
 import { getRemainingTodos } from "./todo.js"
 
@@ -20,21 +19,7 @@ export function registerAttemptCompletion(server: McpServer) {
     "attemptCompletion",
     {
       title: "Attempt completion",
-      description: dedent`
-      Task completion signal with automatic todo validation.
-      Use cases:
-      - Signaling task completion to Perstack runtime
-      - Validating all todos are complete before ending
-      - Ending the current expert's work cycle
-      How it works:
-      - Checks the current todo list for incomplete items
-      - If incomplete todos exist: returns them and continues the agent loop
-      - If no incomplete todos: returns empty object and ends the agent loop
-      Notes:
-      - Mark all todos as complete before calling
-      - Use clearTodo if you want to reset and start fresh
-      - Prevents premature completion by surfacing forgotten tasks
-    `,
+      description: "Signal task completion. Validates all todos are complete before ending.",
       inputSchema: {},
     },
     async () => {