refactor: remove legacy XML tool calling code (getToolDescription)

- Remove getToolDescription() method from MultiSearchReplaceDiffStrategy
- Remove getToolDescription() from DiffStrategy interface
- Remove unused ToolDescription type from shared/tools.ts
- Remove unused eslint-disable directive
- Update test mocks to remove getToolDescription references
- Remove getToolDescription tests from multi-search-replace.spec.ts

Native tools are now defined in src/core/prompts/tools/native-tools/ using
the OpenAI function format. The removed code was dead since XML-style tool
calling was replaced with native tool calling.

Author: hannesrudolph

src/core/diff/strategies/__tests__/multi-search-replace.spec.ts

@@ -1041,29 +1041,6 @@ function sum(a, b) {
 		})
 	})
 
-	describe("getToolDescription", () => {
-		let strategy: MultiSearchReplaceDiffStrategy
-
-		beforeEach(() => {
-			strategy = new MultiSearchReplaceDiffStrategy()
-		})
-
-		it("should include the current workspace directory", async () => {
-			const cwd = "/test/dir"
-			const description = await strategy.getToolDescription({ cwd })
-			expect(description).toContain(`relative to the current workspace directory ${cwd}`)
-		})
-
-		it("should include required format elements", async () => {
-			const description = await strategy.getToolDescription({ cwd: "/test" })
-			expect(description).toContain("<<<<<<< SEARCH")
-			expect(description).toContain("=======")
-			expect(description).toContain(">>>>>>> REPLACE")
-			expect(description).toContain("<apply_diff>")
-			expect(description).toContain("</apply_diff>")
-		})
-	})
-
 	describe("line marker validation in REPLACE sections", () => {
 		let strategy: MultiSearchReplaceDiffStrategy
 

src/core/diff/strategies/multi-search-replace.ts

@@ -1,5 +1,3 @@
-/* eslint-disable no-irregular-whitespace */
-
 import { distance } from "fastest-levenshtein"
 
 import { ToolProgressStatus } from "@roo-code/types"
@@ -90,94 +88,6 @@ export class MultiSearchReplaceDiffStrategy implements DiffStrategy {
 		this.bufferLines = bufferLines ?? BUFFER_LINES
 	}
 
-	getToolDescription(args: { cwd: string; toolOptions?: { [key: string]: string } }): string {
-		return `## apply_diff
-Description: Request to apply PRECISE, TARGETED modifications to an existing file by searching for specific sections of content and replacing them. This tool is for SURGICAL EDITS ONLY - specific changes to existing code.
-You can perform multiple distinct search and replace operations within a single \`apply_diff\` call by providing multiple SEARCH/REPLACE blocks in the \`diff\` parameter. This is the preferred way to make several targeted changes efficiently.
-The SEARCH section must exactly match existing content including whitespace and indentation.
-If you're not confident in the exact content to search for, use the read_file tool first to get the exact content.
-When applying the diffs, be extra careful to remember to change any closing brackets or other syntax that may be affected by the diff farther down in the file.
-ALWAYS make as many changes in a single 'apply_diff' request as possible using multiple SEARCH/REPLACE blocks
-
-Parameters:
-- path: (required) The path of the file to modify (relative to the current workspace directory ${args.cwd})
-- diff: (required) The search/replace block defining the changes.
-
-Diff format:
-\`\`\`
-<<<<<<< SEARCH
-:start_line: (required) The line number of original content where the search block starts.
--------
-[exact content to find including whitespace]
-=======
-[new content to replace with]
->>>>>>> REPLACE
-
-\`\`\`
-
-Example:
-
-Original file:
-\`\`\`
-1 | def calculate_total(items):
-2 |     total = 0
-3 |     for item in items:
-4 |         total += item
-5 |     return total
-\`\`\`
-
-Search/Replace content:
-\`\`\`
-<<<<<<< SEARCH
-:start_line:1
--------
-def calculate_total(items):
-    total = 0
-    for item in items:
-        total += item
-    return total
-=======
-def calculate_total(items):
-    """Calculate total with 10% markup"""
-    return sum(item * 1.1 for item in items)
->>>>>>> REPLACE
-
-\`\`\`
-
-Search/Replace content with multiple edits:
-\`\`\`
-<<<<<<< SEARCH
-:start_line:1
--------
-def calculate_total(items):
-    sum = 0
-=======
-def calculate_sum(items):
-    sum = 0
->>>>>>> REPLACE
-
-<<<<<<< SEARCH
-:start_line:4
--------
-        total += item
-    return total
-=======
-        sum += item
-    return sum 
->>>>>>> REPLACE
-\`\`\`
-
-Usage:
-<apply_diff>
-<path>File path here</path>
-<diff>
-Your search/replace content here
-You can use multi search/replace block in one diff block, but make sure to include the line numbers for each block.
-Only use a single line of '=======' between search and replacement content, because multiple '=======' will corrupt the file.
-</diff>
-</apply_diff>`
-	}
-
 	private unescapeMarkers(content: string): string {
 		return content
 			.replace(/^\\<<<<<<</gm, "<<<<<<<")
@@ -350,31 +260,31 @@ Only use a single line of '=======' between search and replacement content, beca
 			Regex parts:
 			
 			1. (?:^|\n)  
-			  Ensures the first marker starts at the beginning of the file or right after a newline.
+			  Ensures the first marker starts at the beginning of the file or right after a newline.
 
 			2. (?<!\\)<<<<<<< SEARCH\s*\n  
-			  Matches the line “<<<<<<< SEARCH” (ignoring any trailing spaces) – the negative lookbehind makes sure it isn’t escaped.
+			  Matches the line "<<<<<<< SEARCH" (ignoring any trailing spaces) – the negative lookbehind makes sure it isn't escaped.
 
 			3. ((?:\:start_line:\s*(\d+)\s*\n))?  
-			  Optionally matches a “:start_line:” line. The outer capturing group is group 1 and the inner (\d+) is group 2.
+			  Optionally matches a ":start_line:" line. The outer capturing group is group 1 and the inner (\d+) is group 2.
 
 			4. ((?:\:end_line:\s*(\d+)\s*\n))?  
-			  Optionally matches a “:end_line:” line. Group 3 is the whole match and group 4 is the digits.
+			  Optionally matches a ":end_line:" line. Group 3 is the whole match and group 4 is the digits.
 
 			5. ((?<!\\)-------\s*\n)?  
-			  Optionally matches the “-------” marker line (group 5).
+			  Optionally matches the "-------" marker line (group 5).
 
 			6. ([\s\S]*?)(?:\n)?  
-			  Non‐greedy match for the “search content” (group 6) up to the next marker.
+			  Non‐greedy match for the "search content" (group 6) up to the next marker.
 
 			7. (?:(?<=\n)(?<!\\)=======\s*\n)  
-			  Matches the “=======” marker on its own line.
+			  Matches the "=======" marker on its own line.
 
 			8. ([\s\S]*?)(?:\n)?  
-			  Non‐greedy match for the “replace content” (group 7).
+			  Non‐greedy match for the "replace content" (group 7).
 
 			9. (?:(?<=\n)(?<!\\)>>>>>>> REPLACE)(?=\n|$)  
-			  Matches the final “>>>>>>> REPLACE” marker on its own line (and requires a following newline or the end of file).
+			  Matches the final ">>>>>>> REPLACE" marker on its own line (and requires a following newline or the end of file).
 		*/
 
 		let matches = [

src/core/webview/__tests__/ClineProvider.spec.ts

@@ -315,7 +315,6 @@ vi.mock("../../../api/providers/fetchers/modelCache", () => ({
 
 vi.mock("../diff/strategies/multi-search-replace", () => ({
 	MultiSearchReplaceDiffStrategy: vi.fn().mockImplementation(() => ({
-		getToolDescription: () => "test",
 		getName: () => "test-strategy",
 		applyDiff: vi.fn(),
 	})),

src/core/webview/__tests__/ClineProvider.sticky-mode.spec.ts

@@ -98,7 +98,6 @@ vi.mock("../../../integrations/workspace/WorkspaceTracker", () => ({
 
 vi.mock("../../diff/strategies/multi-search-replace", () => ({
 	MultiSearchReplaceDiffStrategy: vi.fn().mockImplementation(() => ({
-		getToolDescription: () => "test",
 		getName: () => "test-strategy",
 		applyDiff: vi.fn(),
 	})),

src/core/webview/__tests__/ClineProvider.sticky-profile.spec.ts

@@ -100,7 +100,6 @@ vi.mock("../../../integrations/workspace/WorkspaceTracker", () => ({
 
 vi.mock("../../diff/strategies/multi-search-replace", () => ({
 	MultiSearchReplaceDiffStrategy: vi.fn().mockImplementation(() => ({
-		getToolDescription: () => "test",
 		getName: () => "test-strategy",
 		applyDiff: vi.fn(),
 	})),

src/core/webview/__tests__/ClineProvider.taskHistory.spec.ts

@@ -211,7 +211,6 @@ vi.mock("../../../shared/modes", () => ({
 
 vi.mock("../diff/strategies/multi-search-replace", () => ({
 	MultiSearchReplaceDiffStrategy: vi.fn().mockImplementation(() => ({
-		getToolDescription: () => "test",
 		getName: () => "test-strategy",
 		applyDiff: vi.fn(),
 	})),

src/shared/tools.ts

@@ -25,8 +25,6 @@ export type PushToolResult = (content: ToolResponse) => void
 
 export type AskFinishSubTaskApproval = () => Promise<boolean>
 
-export type ToolDescription = () => string
-
 export interface TextContent {
 	type: "text"
 	content: string
@@ -342,13 +340,6 @@ export interface DiffStrategy {
 	 */
 	getName(): string
 
-	/**
-	 * Get the tool description for this diff strategy
-	 * @param args The tool arguments including cwd and toolOptions
-	 * @returns The complete tool description including format requirements and examples
-	 */
-	getToolDescription(args: { cwd: string; toolOptions?: { [key: string]: string } }): string
-
 	/**
 	 * Apply a diff to the original content
 	 * @param originalContent The original file content