diff --git a/packages/builtin-tools/src/tools/FileEditTool/UI.tsx b/packages/builtin-tools/src/tools/FileEditTool/UI.tsx
index f466b2ad2..8a85a86e7 100644
--- a/packages/builtin-tools/src/tools/FileEditTool/UI.tsx
+++ b/packages/builtin-tools/src/tools/FileEditTool/UI.tsx
@@ -1,5 +1,7 @@
import type { ToolResultBlockParam } from '@anthropic-ai/sdk/resources/index.mjs';
+import type { StructuredPatchHunk } from 'diff';
import * as React from 'react';
+import { Suspense, use, useState } from 'react';
import { FileEditToolUseRejectedMessage } from 'src/components/FileEditToolUseRejectedMessage.js';
import { MessageResponse } from 'src/components/MessageResponse.js';
import { extractTag } from 'src/utils/messages.js';
@@ -10,10 +12,15 @@ import { Text } from '@anthropic/ink';
import { FilePathLink } from 'src/components/FilePathLink.js';
import type { Tools } from 'src/Tool.js';
import type { Message, ProgressMessage } from 'src/types/message.js';
+import { adjustHunkLineNumbers, CONTEXT_LINES } from 'src/utils/diff.js';
import { FILE_NOT_FOUND_CWD_NOTE, getDisplayPath } from 'src/utils/file.js';
+import { logError } from 'src/utils/log.js';
import { getPlansDirectory } from 'src/utils/plans.js';
+import { readEditContext } from 'src/utils/readEditContext.js';
+import { firstLineOf } from 'src/utils/stringUtils.js';
import type { ThemeName } from 'src/utils/theme.js';
import type { FileEditOutput } from './types.js';
+import { findActualString, getPatchForEdit, preserveQuoteStyle } from './utils.js';
export function userFacingName(
input:
@@ -84,6 +91,8 @@ export function renderToolResultMessage(
+ );
+ }
+
+ const isNewFile = oldString === '';
+
+ // For new file creation, show content preview instead of diff
+ if (isNewFile) {
+ return (
+
+ );
+ }
return (
-
@@ -149,3 +184,103 @@ export function renderToolUseErrorMessage(
}
return ;
}
+
+type RejectionDiffData = {
+ patch: StructuredPatchHunk[];
+ firstLine: string | null;
+ fileContent: string | undefined;
+};
+
+function EditRejectionDiff({
+ filePath,
+ oldString,
+ newString,
+ replaceAll,
+ style,
+ verbose,
+}: {
+ filePath: string;
+ oldString: string;
+ newString: string;
+ replaceAll: boolean;
+ style?: 'condensed';
+ verbose: boolean;
+}): React.ReactNode {
+ const [dataPromise] = useState(() => loadRejectionDiff(filePath, oldString, newString, replaceAll));
+ return (
+
+ }
+ >
+
+
+ );
+}
+
+function EditRejectionBody({
+ promise,
+ filePath,
+ style,
+ verbose,
+}: {
+ promise: Promise;
+ filePath: string;
+ style?: 'condensed';
+ verbose: boolean;
+}): React.ReactNode {
+ const { patch, firstLine, fileContent } = use(promise);
+ return (
+
+ );
+}
+
+async function loadRejectionDiff(
+ filePath: string,
+ oldString: string,
+ newString: string,
+ replaceAll: boolean,
+): Promise {
+ try {
+ // Chunked read — context window around the first occurrence. replaceAll
+ // still shows matches *within* the window via getPatchForEdit; we accept
+ // losing the all-occurrences view to keep the read bounded.
+ const ctx = await readEditContext(filePath, oldString, CONTEXT_LINES);
+ if (ctx === null || ctx.truncated || ctx.content === '') {
+ // ENOENT / not found / truncated — diff just the tool inputs.
+ const { patch } = getPatchForEdit({
+ filePath,
+ fileContents: oldString,
+ oldString,
+ newString,
+ });
+ return { patch, firstLine: null, fileContent: undefined };
+ }
+ const actualOld = findActualString(ctx.content, oldString) || oldString;
+ const actualNew = preserveQuoteStyle(oldString, actualOld, newString);
+ const { patch } = getPatchForEdit({
+ filePath,
+ fileContents: ctx.content,
+ oldString: actualOld,
+ newString: actualNew,
+ replaceAll,
+ });
+ return {
+ patch: adjustHunkLineNumbers(patch, ctx.lineOffset - 1),
+ firstLine: ctx.lineOffset === 1 ? firstLineOf(ctx.content) : null,
+ fileContent: ctx.content,
+ };
+ } catch (e) {
+ // User may have manually applied the change while the diff was shown.
+ logError(e as Error);
+ return { patch: [], firstLine: null, fileContent: undefined };
+ }
+}
diff --git a/packages/builtin-tools/src/tools/FileWriteTool/UI.tsx b/packages/builtin-tools/src/tools/FileWriteTool/UI.tsx
index 5a946be65..c875fdf57 100644
--- a/packages/builtin-tools/src/tools/FileWriteTool/UI.tsx
+++ b/packages/builtin-tools/src/tools/FileWriteTool/UI.tsx
@@ -1,6 +1,8 @@
import type { ToolResultBlockParam } from '@anthropic-ai/sdk/resources/index.mjs';
-import { relative } from 'path';
+import type { StructuredPatchHunk } from 'diff';
+import { isAbsolute, relative, resolve } from 'path';
import * as React from 'react';
+import { Suspense, use, useState } from 'react';
import { MessageResponse } from 'src/components/MessageResponse.js';
import { extractTag } from 'src/utils/messages.js';
import { CtrlOToExpand } from 'src/components/CtrlOToExpand.js';
@@ -15,8 +17,11 @@ import { FilePathLink } from 'src/components/FilePathLink.js';
import type { ToolProgressData } from 'src/Tool.js';
import type { ProgressMessage } from 'src/types/message.js';
import { getCwd } from 'src/utils/cwd.js';
+import { getPatchForDisplay } from 'src/utils/diff.js';
import { getDisplayPath } from 'src/utils/file.js';
+import { logError } from 'src/utils/log.js';
import { getPlansDirectory } from 'src/utils/plans.js';
+import { openForScan, readCapped } from 'src/utils/readEditContext.js';
import type { Output } from './FileWriteTool.js';
const MAX_LINES_TO_RENDER = 10;
@@ -122,10 +127,115 @@ export function renderToolUseMessage(
}
export function renderToolUseRejectedMessage(
- { file_path }: { file_path: string; content: string },
+ { file_path, content }: { file_path: string; content: string },
{ style, verbose }: { style?: 'condensed'; verbose: boolean },
): React.ReactNode {
- return ;
+ return ;
+}
+
+type RejectionDiffData =
+ | { type: 'create' }
+ | { type: 'update'; patch: StructuredPatchHunk[]; oldContent: string }
+ | { type: 'error' };
+
+function WriteRejectionDiff({
+ filePath,
+ content,
+ style,
+ verbose,
+}: {
+ filePath: string;
+ content: string;
+ style?: 'condensed';
+ verbose: boolean;
+}): React.ReactNode {
+ const [dataPromise] = useState(() => loadRejectionDiff(filePath, content));
+ const firstLine = content.split('\n')[0] ?? null;
+ const createFallback = (
+
+ );
+ return (
+
+
+
+ );
+}
+
+function WriteRejectionBody({
+ promise,
+ filePath,
+ firstLine,
+ createFallback,
+ style,
+ verbose,
+}: {
+ promise: Promise;
+ filePath: string;
+ firstLine: string | null;
+ createFallback: React.ReactNode;
+ style?: 'condensed';
+ verbose: boolean;
+}): React.ReactNode {
+ const data = use(promise);
+ if (data.type === 'create') return createFallback;
+ if (data.type === 'error') {
+ return (
+
+ (No changes)
+
+ );
+ }
+ return (
+
+ );
+}
+
+async function loadRejectionDiff(filePath: string, content: string): Promise {
+ try {
+ const fullFilePath = isAbsolute(filePath) ? filePath : resolve(getCwd(), filePath);
+ const handle = await openForScan(fullFilePath);
+ if (handle === null) return { type: 'create' };
+ let oldContent: string | null;
+ try {
+ oldContent = await readCapped(handle);
+ } finally {
+ await handle.close();
+ }
+ // File exceeds MAX_SCAN_BYTES — fall back to the create view rather than
+ // OOMing on a diff of a multi-GB file.
+ if (oldContent === null) return { type: 'create' };
+ const patch = getPatchForDisplay({
+ filePath,
+ fileContents: oldContent,
+ edits: [{ old_string: oldContent, new_string: content, replace_all: false }],
+ });
+ return { type: 'update', patch, oldContent };
+ } catch (e) {
+ // User may have manually applied the change while the diff was shown.
+ logError(e as Error);
+ return { type: 'error' };
+ }
}
export function renderToolUseErrorMessage(
@@ -179,6 +289,8 @@ export function renderToolResultMessage(
acc + count(hunk.lines, _ => _.startsWith('+')), 0);
const numRemovals = structuredPatch.reduce((acc, hunk) => acc + count(hunk.lines, _ => _.startsWith('-')), 0);
@@ -39,7 +47,7 @@ export function FileEditToolUpdatedMessage({
// Plan files: invert condensed behavior
// - Regular mode: just show the hint (user can type /plan to see full content)
- // - Condensed mode (subagent view): show the text
+ // - Condensed mode (subagent view): show the diff
if (previewHint) {
if (style !== 'condensed' && !verbose) {
return (
@@ -52,5 +60,19 @@ export function FileEditToolUpdatedMessage({
return text;
}
- return {text};
+ return (
+
+
+ {text}
+
+
+
+ );
}
diff --git a/src/components/FileEditToolUseRejectedMessage.tsx b/src/components/FileEditToolUseRejectedMessage.tsx
index 1929651c9..bc09f5d57 100644
--- a/src/components/FileEditToolUseRejectedMessage.tsx
+++ b/src/components/FileEditToolUseRejectedMessage.tsx
@@ -1,17 +1,39 @@
+import type { StructuredPatchHunk } from 'diff';
import { relative } from 'path';
import * as React from 'react';
+import { useTerminalSize } from 'src/hooks/useTerminalSize.js';
import { getCwd } from 'src/utils/cwd.js';
import { Box, Text } from '@anthropic/ink';
+import { HighlightedCode } from './HighlightedCode.js';
import { MessageResponse } from './MessageResponse.js';
+import { StructuredDiffList } from './StructuredDiffList.js';
+
+const MAX_LINES_TO_RENDER = 10;
type Props = {
file_path: string;
operation: 'write' | 'update';
+ // For updates - show diff
+ patch?: StructuredPatchHunk[];
+ firstLine: string | null;
+ fileContent?: string;
+ // For new file creation - show content preview
+ content?: string;
style?: 'condensed';
verbose: boolean;
};
-export function FileEditToolUseRejectedMessage({ file_path, operation, style, verbose }: Props): React.ReactNode {
+export function FileEditToolUseRejectedMessage({
+ file_path,
+ operation,
+ patch,
+ firstLine,
+ fileContent,
+ content,
+ style,
+ verbose,
+}: Props): React.ReactNode {
+ const { columns } = useTerminalSize();
const text = (
User rejected {operation} to
@@ -26,5 +48,42 @@ export function FileEditToolUseRejectedMessage({ file_path, operation, style, ve
return {text};
}
- return {text};
+ // For new file creation, show content preview (dimmed)
+ if (operation === 'write' && content !== undefined) {
+ const lines = content.split('\n');
+ const numLines = lines.length;
+ const plusLines = numLines - MAX_LINES_TO_RENDER;
+ const truncatedContent = verbose ? content : lines.slice(0, MAX_LINES_TO_RENDER).join('\n');
+
+ return (
+
+
+ {text}
+
+ {!verbose && plusLines > 0 && … +{plusLines} lines}
+
+
+ );
+ }
+
+ // For updates, show diff
+ if (!patch || patch.length === 0) {
+ return {text};
+ }
+
+ return (
+
+
+ {text}
+
+
+
+ );
}