diff --git a/src/__tests__/command-mentions.spec.ts b/src/__tests__/command-mentions.spec.ts
index 7ddaf3d092..8007688f6c 100644
--- a/src/__tests__/command-mentions.spec.ts
+++ b/src/__tests__/command-mentions.spec.ts
@@ -36,7 +36,6 @@ describe("Command Mentions", () => {
 			false, // showRooIgnoredFiles
 			true, // includeDiagnosticMessages
 			50, // maxDiagnosticMessages
-			undefined, // maxReadFileLine
 		)
 	}
 
diff --git a/src/core/mentions/__tests__/processUserContentMentions.spec.ts b/src/core/mentions/__tests__/processUserContentMentions.spec.ts
index 13c225042d..593eb7e05c 100644
--- a/src/core/mentions/__tests__/processUserContentMentions.spec.ts
+++ b/src/core/mentions/__tests__/processUserContentMentions.spec.ts
@@ -26,97 +26,6 @@ describe("processUserContentMentions", () => {
 		vi.mocked(parseMentions).mockImplementation(async (text) => `parsed: ${text}`)
 	})
 
-	describe("maxReadFileLine parameter", () => {
-		it("should pass maxReadFileLine to parseMentions when provided", async () => {
-			const userContent = [
-				{
-					type: "text" as const,
-					text: "<task>Read file with limit</task>",
-				},
-			]
-
-			await processUserContentMentions({
-				userContent,
-				cwd: "/test",
-				urlContentFetcher: mockUrlContentFetcher,
-				fileContextTracker: mockFileContextTracker,
-				rooIgnoreController: mockRooIgnoreController,
-				maxReadFileLine: 100,
-			})
-
-			expect(parseMentions).toHaveBeenCalledWith(
-				"<task>Read file with limit</task>",
-				"/test",
-				mockUrlContentFetcher,
-				mockFileContextTracker,
-				mockRooIgnoreController,
-				false,
-				true, // includeDiagnosticMessages
-				50, // maxDiagnosticMessages
-				100,
-			)
-		})
-
-		it("should pass undefined maxReadFileLine when not provided", async () => {
-			const userContent = [
-				{
-					type: "text" as const,
-					text: "<task>Read file without limit</task>",
-				},
-			]
-
-			await processUserContentMentions({
-				userContent,
-				cwd: "/test",
-				urlContentFetcher: mockUrlContentFetcher,
-				fileContextTracker: mockFileContextTracker,
-				rooIgnoreController: mockRooIgnoreController,
-			})
-
-			expect(parseMentions).toHaveBeenCalledWith(
-				"<task>Read file without limit</task>",
-				"/test",
-				mockUrlContentFetcher,
-				mockFileContextTracker,
-				mockRooIgnoreController,
-				false,
-				true, // includeDiagnosticMessages
-				50, // maxDiagnosticMessages
-				undefined,
-			)
-		})
-
-		it("should handle UNLIMITED_LINES constant correctly", async () => {
-			const userContent = [
-				{
-					type: "text" as const,
-					text: "<task>Read unlimited lines</task>",
-				},
-			]
-
-			await processUserContentMentions({
-				userContent,
-				cwd: "/test",
-				urlContentFetcher: mockUrlContentFetcher,
-				fileContextTracker: mockFileContextTracker,
-				rooIgnoreController: mockRooIgnoreController,
-				maxReadFileLine: -1,
-			})
-
-			expect(parseMentions).toHaveBeenCalledWith(
-				"<task>Read unlimited lines</task>",
-				"/test",
-				mockUrlContentFetcher,
-				mockFileContextTracker,
-				mockRooIgnoreController,
-				false,
-				true, // includeDiagnosticMessages
-				50, // maxDiagnosticMessages
-				-1,
-			)
-		})
-	})
-
 	describe("content processing", () => {
 		it("should process text blocks with <task> tags", async () => {
 			const userContent = [
@@ -273,7 +182,6 @@ describe("processUserContentMentions", () => {
 				cwd: "/test",
 				urlContentFetcher: mockUrlContentFetcher,
 				fileContextTracker: mockFileContextTracker,
-				maxReadFileLine: 50,
 			})
 
 			expect(parseMentions).toHaveBeenCalledTimes(2)
@@ -316,7 +224,6 @@ describe("processUserContentMentions", () => {
 				false, // showRooIgnoredFiles should default to false
 				true, // includeDiagnosticMessages
 				50, // maxDiagnosticMessages
-				undefined,
 			)
 		})
 
@@ -345,7 +252,6 @@ describe("processUserContentMentions", () => {
 				false,
 				true, // includeDiagnosticMessages
 				50, // maxDiagnosticMessages
-				undefined,
 			)
 		})
 	})
diff --git a/src/core/mentions/index.ts b/src/core/mentions/index.ts
index 5a6756d055..71f6427041 100644
--- a/src/core/mentions/index.ts
+++ b/src/core/mentions/index.ts
@@ -80,7 +80,6 @@ export async function parseMentions(
 	showRooIgnoredFiles: boolean = false,
 	includeDiagnosticMessages: boolean = true,
 	maxDiagnosticMessages: number = 50,
-	maxReadFileLine?: number,
 ): Promise<string> {
 	const mentions: Set<string> = new Set()
 	const validCommands: Map<string, Command> = new Map()
@@ -182,13 +181,7 @@ export async function parseMentions(
 		} else if (mention.startsWith("/")) {
 			const mentionPath = mention.slice(1)
 			try {
-				const content = await getFileOrFolderContent(
-					mentionPath,
-					cwd,
-					rooIgnoreController,
-					showRooIgnoredFiles,
-					maxReadFileLine,
-				)
+				const content = await getFileOrFolderContent(mentionPath, cwd, rooIgnoreController, showRooIgnoredFiles)
 				if (mention.endsWith("/")) {
 					parsedText += `\n\n<folder_content path="${mentionPath}">\n${content}\n</folder_content>`
 				} else {
@@ -265,7 +258,6 @@ async function getFileOrFolderContent(
 	cwd: string,
 	rooIgnoreController?: any,
 	showRooIgnoredFiles: boolean = false,
-	maxReadFileLine?: number,
 ): Promise<string> {
 	const unescapedPath = unescapeSpaces(mentionPath)
 	const absPath = path.resolve(cwd, unescapedPath)
diff --git a/src/core/mentions/processUserContentMentions.ts b/src/core/mentions/processUserContentMentions.ts
index 4bdb422d48..fcba75396f 100644
--- a/src/core/mentions/processUserContentMentions.ts
+++ b/src/core/mentions/processUserContentMentions.ts
@@ -15,7 +15,6 @@ export async function processUserContentMentions({
 	showRooIgnoredFiles = false,
 	includeDiagnosticMessages = true,
 	maxDiagnosticMessages = 50,
-	maxReadFileLine,
 }: {
 	userContent: Anthropic.Messages.ContentBlockParam[]
 	cwd: string
@@ -25,7 +24,6 @@ export async function processUserContentMentions({
 	showRooIgnoredFiles?: boolean
 	includeDiagnosticMessages?: boolean
 	maxDiagnosticMessages?: number
-	maxReadFileLine?: number
 }) {
 	// Process userContent array, which contains various block types:
 	// TextBlockParam, ImageBlockParam, ToolUseBlockParam, and ToolResultBlockParam.
@@ -58,7 +56,6 @@ export async function processUserContentMentions({
 							showRooIgnoredFiles,
 							includeDiagnosticMessages,
 							maxDiagnosticMessages,
-							maxReadFileLine,
 						),
 					}
 				}
@@ -78,7 +75,6 @@ export async function processUserContentMentions({
 								showRooIgnoredFiles,
 								includeDiagnosticMessages,
 								maxDiagnosticMessages,
-								maxReadFileLine,
 							),
 						}
 					}
@@ -99,7 +95,6 @@ export async function processUserContentMentions({
 										showRooIgnoredFiles,
 										includeDiagnosticMessages,
 										maxDiagnosticMessages,
-										maxReadFileLine,
 									),
 								}
 							}
diff --git a/src/core/task/Task.ts b/src/core/task/Task.ts
index 493263b9d4..8beed65504 100644
--- a/src/core/task/Task.ts
+++ b/src/core/task/Task.ts
@@ -2168,7 +2168,6 @@ export class Task extends EventEmitter<TaskEvents> implements TaskLike {
 				showRooIgnoredFiles = false,
 				includeDiagnosticMessages = true,
 				maxDiagnosticMessages = 50,
-				maxReadFileLine = -1,
 			} = (await this.providerRef.deref()?.getState()) ?? {}
 
 			const parsedUserContent = await processUserContentMentions({
@@ -2180,7 +2179,6 @@ export class Task extends EventEmitter<TaskEvents> implements TaskLike {
 				showRooIgnoredFiles,
 				includeDiagnosticMessages,
 				maxDiagnosticMessages,
-				maxReadFileLine,
 			})
 
 			const environmentDetails = await getEnvironmentDetails(this, currentIncludeFileDetails)