feat: add local workspace review slash command

Add /review command with high-signal diff review instructions
Expose workspace review prompts in Magic Prompts settings
Show /review in command autocomplete with OpenChamber command metadata

packages/ui/src/components/chat/ChatInput.tsx

@@ -1563,6 +1563,28 @@ const ChatInputComponent: React.FC<ChatInputProps> = ({ onOpenSettings, scrollTo
                 }
                 return;
             }
+            else if (commandName === 'review' && currentSessionId) {
+                try {
+                    await sessionActions.waitForConnectionOrThrow();
+                    const visibleText = await renderMagicPrompt('session.review.visible');
+                    const instructionsText = await renderMagicPrompt('session.review.instructions');
+                    await sendMessage(
+                        visibleText,
+                        currentProviderId,
+                        currentModelId,
+                        currentAgentName,
+                        [],
+                        agentMentionName,
+                        [{ text: instructionsText, synthetic: true }],
+                        currentVariant,
+                        inputMode,
+                    );
+                    scrollToBottom?.({ instant: true, force: true });
+                } catch (error) {
+                    toast.error(error instanceof Error ? error.message : 'Failed to review changes');
+                }
+                return;
+            }
         }
 
         // Collect all attachments for error recovery

packages/ui/src/components/chat/CommandAutocomplete.tsx

@@ -1,5 +1,5 @@
 import React from 'react';
-import { RiCommandLine, RiFileLine, RiFlashlightLine, RiRefreshLine, RiScissorsLine, RiTerminalBoxLine, RiArrowGoBackLine, RiArrowGoForwardLine } from '@remixicon/react';
+import { RiCommandLine, RiFileLine, RiFlashlightLine, RiRefreshLine, RiScissorsLine, RiTerminalBoxLine, RiArrowGoBackLine, RiArrowGoForwardLine, RiSearchEyeLine } from '@remixicon/react';
 import { cn, fuzzyMatch } from '@/lib/utils';
 import { useSessionUIStore } from '@/sync/session-ui-store';
 import { useSessionMessages } from '@/sync/sync-context';
@@ -122,6 +122,10 @@ export const CommandAutocomplete = React.forwardRef<CommandAutocompleteHandle, C
             ? [{ id: 'openchamber:summary', name: 'summary', source: 'openchamber' as const, description: 'Non-destructive session summary. Optional topic hint after the command.', isOpenChamber: true }]
             : []
           ),
+          ...(hasSession
+            ? [{ id: 'openchamber:review', name: 'review', source: 'openchamber' as const, description: 'Review current workspace changes for high-signal issues only.', isOpenChamber: true }]
+            : []
+          ),
         ];
         const allCommands = [...builtInCommands, ...customCommands];
 
@@ -162,6 +166,10 @@ export const CommandAutocomplete = React.forwardRef<CommandAutocompleteHandle, C
             ? [{ id: 'openchamber:summary', name: 'summary', source: 'openchamber' as const, description: 'Non-destructive session summary. Optional topic hint after the command.', isOpenChamber: true }]
             : []
           ),
+          ...(hasSession
+            ? [{ id: 'openchamber:review', name: 'review', source: 'openchamber' as const, description: 'Review current workspace changes for high-signal issues only.', isOpenChamber: true }]
+            : []
+          ),
         ];
 
         const filtered = (searchQuery
@@ -234,6 +242,8 @@ export const CommandAutocomplete = React.forwardRef<CommandAutocompleteHandle, C
         return <RiArrowGoForwardLine className="h-3.5 w-3.5 text-orange-500" />;
       case 'compact':
         return <RiScissorsLine className="h-3.5 w-3.5 text-purple-500" />;
+      case 'review':
+        return <RiSearchEyeLine className="h-3.5 w-3.5 text-blue-500" />;
       case 'test':
       case 'build':
       case 'run':

packages/ui/src/components/sections/magic-prompts/MagicPromptsPage.tsx

@@ -131,6 +131,14 @@ const PROMPT_PAGE_MAP: Record<string, PromptPageConfig> = {
       { id: 'session.summary.instructions', title: 'Instructions' },
     ],
   },
+  'session.review': {
+    title: 'Workspace Review',
+    description: 'Prompts used by the /review slash command: visible user message + hidden instructions. Reviews current workspace changes for high-signal issues only.',
+    blocks: [
+      { id: 'session.review.visible', title: 'Visible Prompt' },
+      { id: 'session.review.instructions', title: 'Instructions' },
+    ],
+  },
 };
 
 const hasOwn = (input: Record<string, string>, key: string) => Object.prototype.hasOwnProperty.call(input, key);

packages/ui/src/components/sections/magic-prompts/MagicPromptsSidebar.tsx

@@ -44,6 +44,7 @@ export const MagicPromptsSidebar: React.FC<MagicPromptsSidebarProps> = ({ onItem
         group: 'Session',
         items: [
           { id: 'session.summary', title: 'Session Summary' },
+          { id: 'session.review', title: 'Workspace Review' },
         ],
       },
     ] as const;

packages/ui/src/lib/magicPrompts.ts

@@ -24,7 +24,9 @@ export type MagicPromptId =
   | 'plan.implement.visible'
   | 'plan.implement.instructions'
   | 'session.summary.visible'
-  | 'session.summary.instructions';
+  | 'session.summary.instructions'
+  | 'session.review.visible'
+  | 'session.review.instructions';
 
 export interface MagicPromptDefinition {
   id: MagicPromptId;
@@ -506,6 +508,56 @@ Formatting:
 
 Respond in the same language the user used most in the conversation.`,
   },
+  {
+    id: 'session.review.visible',
+    title: 'Workspace Review Visible Prompt',
+    group: 'Session',
+    description: 'Visible user message sent by the /review command.',
+    template: 'Review the changes made in this workspace.',
+  },
+  {
+    id: 'session.review.instructions',
+    title: 'Workspace Review Instructions',
+    group: 'Session',
+    description: 'Hidden instructions attached to the /review command. Reviews current workspace changes for high-signal issues only.',
+    template: `
+Report only real, high-signal issues introduced by these changes.
+
+The diff is the source of truth. Use the local repo only as ancillary context when you need to validate a specific claim or check an applicable rule.
+
+Focus on:
+- runtime bugs
+- incorrect logic
+- broken assumptions in the changed code
+- clear regressions introduced by the changes
+- missing implementations across affected modules or targets when the diff clearly introduced the gap
+- clear CLAUDE.md or AGENTS.md violations that apply to the changed files
+
+Do not report:
+- pre-existing issues unrelated to the diff
+- pedantic nitpicks a senior engineer would not flag
+- issues a linter would catch
+- subjective style preferences not explicitly required by CLAUDE.md or AGENTS.md
+- speculative concerns or anything you cannot verify with high confidence
+- missing tests or coverage gaps unless an applicable CLAUDE.md or AGENTS.md explicitly requires them for the changed area
+- rules mentioned in CLAUDE.md or AGENTS.md but explicitly silenced in the code
+
+Validation pass:
+- Before reporting an issue, re-check it against the diff plus only the local context you actually needed to read.
+- For CLAUDE.md or AGENTS.md violations, verify the rule applies to the affected file path and cite the exact rule.
+- If you are not certain an issue is real, omit it.
+
+Output:
+- If no high-signal issues are found, respond with exactly: No high-signal issues found.
+- Otherwise, return a concise numbered list.
+- For each issue include:
+  - short title
+  - why it is a real problem
+  - affected file path
+  - category: bug or rule violation
+
+Keep the review concise and practical.`,
+  },
 ] as const;
 
 const MAGIC_PROMPT_DEFINITION_BY_ID = new Map<MagicPromptId, MagicPromptDefinition>(