diff --git a/.changeset/tough-coats-hear.md b/.changeset/tough-coats-hear.md
new file mode 100644
index 00000000000..6189de0fda0
--- /dev/null
+++ b/.changeset/tough-coats-hear.md
@@ -0,0 +1,5 @@
+---
+"roo-cline": patch
+---
+
+Respect the setting to always read the full file
diff --git a/src/core/__tests__/read-file-maxReadFileLine.test.ts b/src/core/__tests__/read-file-maxReadFileLine.test.ts
index 0f3e3a0d67e..bbbbcb37eb7 100644
--- a/src/core/__tests__/read-file-maxReadFileLine.test.ts
+++ b/src/core/__tests__/read-file-maxReadFileLine.test.ts
@@ -186,7 +186,6 @@ describe("read_file tool with maxReadFileLine setting", () => {
 
 		return toolResult
 	}
-
 	describe("when maxReadFileLine is negative", () => {
 		it("should read the entire file using extractTextFromFile", async () => {
 			// Setup - use default mockInputContent
@@ -201,6 +200,43 @@ describe("read_file tool with maxReadFileLine setting", () => {
 			expect(mockedParseSourceCodeDefinitionsForFile).not.toHaveBeenCalled()
 			expect(result).toBe(expectedFullFileXml)
 		})
+
+		it("should ignore range parameters and read entire file when maxReadFileLine is -1", async () => {
+			// Setup - use default mockInputContent
+			mockInputContent = fileContent
+
+			// Execute with range parameters
+			const result = await executeReadFileTool(
+				{
+					start_line: "2",
+					end_line: "4",
+				},
+				{ maxReadFileLine: -1 },
+			)
+
+			// Verify that extractTextFromFile is still used (not readLines)
+			expect(mockedExtractTextFromFile).toHaveBeenCalledWith(absoluteFilePath)
+			expect(mockedReadLines).not.toHaveBeenCalled()
+			expect(mockedParseSourceCodeDefinitionsForFile).not.toHaveBeenCalled()
+			expect(result).toBe(expectedFullFileXml)
+		})
+
+		it("should not show line snippet in approval message when maxReadFileLine is -1", async () => {
+			// This test verifies the line snippet behavior for the approval message
+			// Setup - use default mockInputContent
+			mockInputContent = fileContent
+
+			// Execute - we'll reuse executeReadFileTool to run the tool
+			await executeReadFileTool({}, { maxReadFileLine: -1 })
+
+			// Verify the empty line snippet for full read was passed to the approval message
+			// Look at the parameters passed to the 'ask' method in the approval message
+			const askCall = mockCline.ask.mock.calls[0]
+			const completeMessage = JSON.parse(askCall[1])
+
+			// Verify the reason (lineSnippet) is empty or undefined for full read
+			expect(completeMessage.reason).toBeFalsy()
+		})
 	})
 
 	describe("when maxReadFileLine is 0", () => {
diff --git a/src/core/tools/readFileTool.ts b/src/core/tools/readFileTool.ts
index 2a3fc6cca21..fdb74109c3e 100644
--- a/src/core/tools/readFileTool.ts
+++ b/src/core/tools/readFileTool.ts
@@ -51,13 +51,16 @@ export async function readFileTool(
 				return
 			}
 
+			const { maxReadFileLine = 500 } = (await cline.providerRef.deref()?.getState()) ?? {}
+			const isFullRead = maxReadFileLine === -1
+
 			// Check if we're doing a line range read
 			let isRangeRead = false
 			let startLine: number | undefined = undefined
 			let endLine: number | undefined = undefined
 
-			// Check if we have either range parameter
-			if (startLineStr || endLineStr) {
+			// Check if we have either range parameter and we're not doing a full read
+			if (!isFullRead && (startLineStr || endLineStr)) {
 				isRangeRead = true
 			}
 
@@ -98,11 +101,11 @@ export async function readFileTool(
 				return
 			}
 
-			const { maxReadFileLine = 500 } = (await cline.providerRef.deref()?.getState()) ?? {}
-
 			// Create line snippet description for approval message
 			let lineSnippet = ""
-			if (startLine !== undefined && endLine !== undefined) {
+			if (isFullRead) {
+				// No snippet for full read
+			} else if (startLine !== undefined && endLine !== undefined) {
 				lineSnippet = t("tools:readFile.linesRange", { start: startLine + 1, end: endLine + 1 })
 			} else if (startLine !== undefined) {
 				lineSnippet = t("tools:readFile.linesFromToEnd", { start: startLine + 1 })