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WalkthroughA new AI-powered tool, Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant AISidebar
participant Server
participant MCP
participant AIModel
User->>AISidebar: Initiate Gmail search query tool
AISidebar->>Server: Request buildGmailSearchQuery with query parameter
Server->>MCP: Route tool request with metadata/schema
MCP->>AIModel: Generate search query using system prompt
AIModel-->>MCP: Return generated search query
MCP-->>Server: Return search query result
Server-->>AISidebar: Respond with generated query
AISidebar-->>User: Display Gmail search query
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cubic reviewed 5 files and found no issues. Review PR in cubic.dev.
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Actionable comments posted: 1
🔭 Outside diff range comments (1)
apps/server/src/routes/chat.ts (1)
1427-1450: Consider reusing thebuildGmailSearchQueryimplementation fromtools.ts.This implementation duplicates the logic from
apps/server/src/routes/agent/tools.ts. Consider importing and reusing the tool instead of duplicating the code.
🧹 Nitpick comments (2)
apps/server/src/routes/agent/tools.ts (1)
384-398: Consider improving error handling and model configuration.The implementation looks good, but there are two areas for improvement:
- The environment variable
OPENAI_MODELis used for an Anthropic model, which is confusing- No error handling for the
generateTextcallconst buildGmailSearchQuery = () => tool({ description: 'Build Gmail search query using AI assistance', parameters: z.object({ query: z.string(), }), execute: async ({ query }) => { - const result = await generateText({ - model: anthropic(env.OPENAI_MODEL || 'claude-3-5-haiku-latest'), - system: GmailSearchAssistantSystemPrompt(), - prompt: query, - }); - return result.text; + try { + const result = await generateText({ + model: anthropic(env.ANTHROPIC_MODEL || env.OPENAI_MODEL || 'claude-3-5-haiku-latest'), + system: GmailSearchAssistantSystemPrompt(), + prompt: query, + }); + return result.text; + } catch (error) { + console.error('Error generating Gmail search query:', error); + throw new Error('Failed to generate Gmail search query'); + } }, });apps/server/src/routes/chat.ts (1)
1714-1778: Clean up or document the commented-out tools.The
bulkDeleteandbulkArchivetools are commented out but fully implemented. Either remove them if they're no longer needed or add a comment explaining why they're disabled.
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📒 Files selected for processing (5)
apps/mail/components/ui/ai-sidebar.tsx(2 hunks)apps/server/src/routes/agent/tools.ts(3 hunks)apps/server/src/routes/chat.ts(14 hunks)apps/server/src/types.ts(1 hunks)apps/server/wrangler.jsonc(1 hunks)
🧰 Additional context used
🧠 Learnings (1)
apps/server/src/routes/chat.ts (1)
Learnt from: retrogtx
PR: Mail-0/Zero#1468
File: apps/server/src/trpc/routes/mail.ts:386-391
Timestamp: 2025-06-27T04:59:29.731Z
Learning: In apps/server/src/trpc/routes/mail.ts, the attachment processing logic conditionally handles mixed attachment types - it preserves existing File-like objects with arrayBuffer methods while only converting serialized attachments that need processing through toAttachmentFiles.
🧬 Code Graph Analysis (1)
apps/server/src/routes/agent/tools.ts (1)
apps/server/src/lib/prompts.ts (1)
GmailSearchAssistantSystemPrompt(233-279)
⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (2)
- GitHub Check: cubic · AI code reviewer
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🔇 Additional comments (7)
apps/server/wrangler.jsonc (1)
104-104: Confirm that the reducedTHREAD_SYNC_MAX_COUNTis for testing purposes only.The value has been reduced from 40 to 5 in the local environment while staging (line 237) and production (line 366) retain the value of 40. Please confirm this change is intentional for testing and won't impact production behavior.
apps/server/src/types.ts (1)
229-229: LGTM!The new enum member follows the established naming convention and correctly represents the new Gmail search query builder tool.
apps/mail/components/ui/ai-sidebar.tsx (2)
355-357: Good practice: Explicit initial messages initialization.Making the initial messages explicitly an empty array improves code clarity and prevents potential undefined behavior.
476-476: CSS class reordering has no functional impact.The reordering of Tailwind CSS classes maintains the same styling while potentially improving readability.
apps/server/src/routes/chat.ts (3)
361-375: Clarify the status of theregisterZeroMCPmethod.The method is implemented but commented out in
onStart(). Is this intentional for a phased rollout, or should it be enabled?
417-420: Good addition of error logging.The error handler improves observability. Note that errors are logged but not propagated, which may hide failures from the caller.
1354-1643: Excellent refactoring of tool registration.The new approach with structured descriptions and zod schemas significantly improves:
- Tool discoverability through clear descriptions
- Input validation with type-safe schemas
- Consistent response format
This will make the tools more reliable and easier to use.
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Bug: Tool Processing Bypass Causes Inconsistency
The tool processing logic is broken. The ToolOrchestrator's processTools method is incorrectly called with an empty object, while the streamText function receives the unprocessed rawTools. This bypasses the orchestrator's intended tool processing, creating an inconsistency where processToolCalls operates on an empty set of tools and streamText uses unprocessed tools, potentially leading to broken tool functionality.
apps/server/src/routes/chat.ts#L397-L415
Zero/apps/server/src/routes/chat.ts
Lines 397 to 415 in 9e71610
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Actionable comments posted: 1
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Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (5)
apps/mail/components/ui/ai-sidebar.tsx(2 hunks)apps/server/src/routes/agent/tools.ts(3 hunks)apps/server/src/routes/chat.ts(15 hunks)apps/server/src/types.ts(1 hunks)apps/server/wrangler.jsonc(1 hunks)
🚧 Files skipped from review as they are similar to previous changes (4)
- apps/server/wrangler.jsonc
- apps/server/src/types.ts
- apps/mail/components/ui/ai-sidebar.tsx
- apps/server/src/routes/agent/tools.ts
🧰 Additional context used
🧠 Learnings (1)
apps/server/src/routes/chat.ts (1)
Learnt from: retrogtx
PR: Mail-0/Zero#1468
File: apps/server/src/trpc/routes/mail.ts:386-391
Timestamp: 2025-06-27T04:59:29.731Z
Learning: In apps/server/src/trpc/routes/mail.ts, the attachment processing logic conditionally handles mixed attachment types - it preserves existing File-like objects with arrayBuffer methods while only converting serialized attachments that need processing through toAttachmentFiles.
⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (2)
- GitHub Check: Cursor BugBot
- GitHub Check: Analyze (javascript-typescript)
🔇 Additional comments (8)
apps/server/src/routes/chat.ts (8)
26-26: LGTM - Import additions support new functionality.The new imports for
DurableObjectOAuthClientProviderandwithRetryare appropriate for the OAuth authentication and retry logic being added.Also applies to: 34-34
361-375: Clarify the status of MCP OAuth integration.The
registerZeroMCPmethod is implemented but commented out inonStart(). Is this intentionally disabled for testing, or should it be enabled? The OAuth integration looks properly implemented but appears to be in a transitional state.
417-419: Good addition of error handling.The error handling for the
streamTextcall is a valuable improvement that will help with debugging and monitoring.
1354-1425: Excellent tool registration improvements.The refactoring from
this.server.tooltothis.server.registerToolwith detailed descriptions and zod input schemas significantly improves code quality, validation, and maintainability.
1427-1450: Well-implemented Gmail search query tool.The direct implementation of
buildGmailSearchQueryusinggenerateTextwith the Anthropic model is clean and follows the established pattern. Good centralization of the Gmail search functionality.
1454-1603: Thread management tools are well-structured.The thread management tools (
listThreads,getThread,markThreadsRead,markThreadsUnread,modifyLabels) are properly enhanced with descriptions and input validation. The implementation is clean and follows consistent patterns.
1605-1708: Utility tools are properly implemented.The utility tools (
getCurrentDate,getUserLabels,getLabel,createLabel) are well-structured with appropriate error handling, especially in thecreateLabeltool which properly catches and handles errors.
1710-1774: Clarify the status of commented bulk operations.The
bulkDeleteandbulkArchivetools are commented out. Are these intentionally disabled for testing, being deprecated, or should they be re-enabled? Consider either removing the commented code or adding a TODO comment explaining their status.
1 participant
Gmail Search Query Builder and MCP Tool Registration Improvements
Description
This PR adds a dedicated Gmail search query builder tool and improves the Model Context Protocol (MCP) agent implementation. The changes include:
BuildGmailSearchQuerytool that leverages AI to help users construct effective Gmail search queriesregisterToolmethod with proper descriptions and input schemasType of Change
Areas Affected
Testing Done
Checklist
Additional Notes
The Gmail search query builder tool helps users construct more effective search queries by translating natural language requests into Gmail's search syntax. This should improve the user experience when trying to find specific emails.
The MCP tool registration improvements provide better documentation and type safety for the available tools.