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@PrithvijitBose PrithvijitBose commented Aug 4, 2025

🌟 Feature Implementation: Dynamic FAQ Handler

Problem Solved

  • Eliminates manual, repetitive responses to foundational organizational questions
  • Replaces static FAQ databases with dynamic, real-time information retrieval
  • Provides automated public-facing representation for the organization

Key Features Implemented

Smart Query Routing: ReAct Supervisor intelligently identifies organizational queries
Dynamic Web Search: Real-time information retrieval from organization's public presence
Automated Synthesis: Converts search results into comprehensive, user-friendly responses
Source Attribution: Provides links for users to explore topics further

Testing Results

Successfully tested with query: "How does this organization work?"

  • ✅ Correct supervisor routing to FAQ Handler
  • ✅ Dynamic search query refinement
  • ✅ Successful web search execution
  • ✅ Comprehensive response generation with sources

Technical Implementation

  • Integrated with existing DevRel Agent architecture
  • Uses ReAct Supervisor for intelligent routing
  • Implements web search via refined query processing
  • Maintains consistency with existing tool patterns

Ready for review and production deployment.

Closes #97

bandicam.2025-08-04.11-01-48-554.mp4
bandicam.2025-08-04.13-33-21-813.mp4

Summary by CodeRabbit

  • New Features

    • FAQ responses are now dynamically generated using web search and AI synthesis, providing more comprehensive and up-to-date answers with source citations.
  • Improvements

    • Enhanced error handling, state validation, and logging in the supervisor logic to improve reliability and transparency.
    • Periodic cleanup of expired Discord verification tokens is now more robust, supporting environments with or without the tasks extension.
  • Bug Fixes

    • Fixed imports and removed unused dependencies for cleaner and more efficient code.
  • Chores

    • Updated project dependencies by removing unused packages and relaxing version constraints for improved compatibility.
    • Commented out Discord cog extension loading in the main application to prevent related startup issues.
  • Style

    • Minor formatting and whitespace adjustments for improved code readability.

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Walkthrough

This change refactors the FAQ handler pipeline to use a dynamic, multi-step process that leverages web search and an LLM for synthesizing organizational answers. It updates function signatures and tool node wiring to inject a search tool and LLM, introduces robust error handling and response formatting, and enhances supervisor node validation and logging. Discord cog loading is disabled, and dependency requirements are adjusted.

Changes

Cohort / File(s) Change Summary
Dynamic FAQ Handler Refactor
backend/app/agents/devrel/nodes/handlers/faq.py, backend/app/agents/devrel/tool_wrappers.py, backend/app/agents/devrel/agent.py
Refactored FAQ handler to use a dynamic process with web search and LLM synthesis; updated function signatures and tool node integration to accept search tool and LLM; added new helper functions for query refinement, synthesis, formatting, and fallback responses.
Supervisor Node Robustness
backend/app/agents/devrel/nodes/react_supervisor.py
Enhanced supervisor node with state validation, iteration limits, error handling, logging, and improved decision parsing and state management; added new helpers for message extraction and standardized response creation.
Discord Integration Adjustments
backend/integrations/discord/cogs.py, backend/integrations/discord/bot.py, backend/main.py
Made Discord cog loading conditional or disabled; added fallback for missing tasks extension; improved cleanup loop logic; made only formatting changes to bot.py; commented out extension loading in main.py.
Dependency Updates
pyproject.toml
Removed py-cord dependency; relaxed minimum version for discord-py.
Minor/Non-functional Changes
backend/app/core/handler/faq_handler.py, backend/app/agents/devrel/nodes/handlers/web_search.py
Removed unused imports and trailing whitespace; no functional changes.

Sequence Diagram(s)

sequenceDiagram
    participant User
    participant DevRelAgent
    participant FAQHandler
    participant SearchTool
    participant LLM

    User->>DevRelAgent: Asks organizational FAQ
    DevRelAgent->>FAQHandler: Passes query, search_tool, llm
    FAQHandler->>LLM: Refine query for org-specific search
    LLM-->>FAQHandler: Refined query
    FAQHandler->>SearchTool: Search with refined query
    SearchTool-->>FAQHandler: Top search results
    FAQHandler->>LLM: Synthesize answer from results
    LLM-->>FAQHandler: Synthesized answer
    FAQHandler->>DevRelAgent: Formatted answer with citations
    DevRelAgent->>User: Responds with answer
Loading

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~40 minutes

Assessment against linked issues

Objective Addressed Explanation
Implement FAQ handler that dynamically searches web for organizational queries and synthesizes answers (#97)
Provide source links in FAQ responses for further exploration (#97)
Ensure FAQ handler workflow is managed as a specialized tool node with updated dependencies (#97)

Assessment against linked issues: Out-of-scope changes

Code Change Explanation
Disabled Discord cog extension loading in backend/main.py (commented-out block) This change is unrelated to the FAQ handler feature and not mentioned in the objectives.
Relaxed discord-py version and removed py-cord dependency in pyproject.toml These dependency changes are not mentioned as requirements for the FAQ handler update.

Possibly related PRs

Suggested reviewers

  • smokeyScraper

Poem

A bunny hops through lines anew,
FAQ now searches for the true,
With LLM and search in tow,
Answers blossom, knowledge grows.
Supervisor checks with careful gaze,
Discord cogs in a waiting phase.
🐇✨ Code springs forward, bright as dew!

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Actionable comments posted: 4

🧹 Nitpick comments (5)
backend/app/agents/devrel/nodes/handlers/faq.py (1)

68-94: Well-designed query refinement with effective prompt engineering.

The prompt provides clear instructions and helpful examples for transforming user questions into effective search queries. The focus on official organizational information is appropriate.

Consider adding a max token limit to the LLM call to ensure concise query generation:

-    response = await llm.ainvoke([HumanMessage(content=refinement_prompt)])
+    response = await llm.ainvoke([HumanMessage(content=refinement_prompt)], max_tokens=50)
backend/app/agents/devrel/nodes/react_supervisor.py (3)

10-14: Consider making configuration constants environment-configurable

These hardcoded values might need adjustment based on deployment environment or use case. Consider loading them from environment variables or a configuration file for better flexibility.

+import os
+
 # Configuration constants
-MAX_ITERATIONS = 10
-MAX_CONVERSATION_HISTORY = 5
+MAX_ITERATIONS = int(os.getenv("REACT_MAX_ITERATIONS", "10"))
+MAX_CONVERSATION_HISTORY = int(os.getenv("REACT_MAX_CONVERSATION_HISTORY", "5"))
 VALID_ACTIONS = ["web_search", "faq_handler", "onboarding", "github_toolkit", "complete"]

136-139: Redundant iteration check

This iteration count check duplicates the logic already present in react_supervisor_node (line 33). Since the supervisor node already handles this check and creates a completion response, this check will never trigger.

Consider removing this redundant check or documenting why double-checking is necessary:

-        # Safety check for infinite loops
-        iteration_count = state.context.get("iteration_count", 0)
-        if iteration_count > MAX_ITERATIONS:
-            logger.warning(f"Max iterations reached for session {state.session_id}")
-            return "complete"

231-249: Consider validating against AgentState schema

While the current validation checks essential attributes, consider validating against the full AgentState schema for more comprehensive validation.

You could leverage Pydantic's validation:

def _validate_state(state: AgentState) -> bool:
    """Validate state before processing"""
    try:
        if not state:
            return False
        
        # Leverage Pydantic validation
        if hasattr(state, 'model_validate'):
            state.model_validate(state.model_dump())
        
        # Check required fields
        if not hasattr(state, 'session_id') or not state.session_id:
            logger.error("Invalid state: missing session_id")
            return False
            
        if not hasattr(state, 'context'):
            logger.error("Invalid state: missing context")
            return False
            
        return True
    except Exception as e:
        logger.error(f"Error validating state: {e}")
        return False
backend/integrations/discord/cogs.py (1)

48-77: Consider consolidating the cleanup logic.

Both cleanup approaches execute the same core functionality but with different scheduling mechanisms. Consider extracting the common cleanup logic.

+    async def _execute_cleanup(self):
+        """Common cleanup logic used by both scheduling approaches"""
+        try:
+            print("--> Running token cleanup task...")
+            await cleanup_expired_tokens()
+            print("--> Token cleanup task finished.")
+        except Exception as e:
+            logger.error(f"Error during token cleanup: {e}")

     if TASKS_AVAILABLE:
         @tasks.loop(minutes=5)
         async def cleanup_expired_tokens(self):
             """Periodic cleanup of expired verification tokens"""
-            try:
-                print("--> Running token cleanup task...")
-                await cleanup_expired_tokens()
-                print("--> Token cleanup task finished.")
-            except Exception as e:
-                logger.error(f"Error during token cleanup: {e}")
+            await self._execute_cleanup()

     async def _manual_cleanup_loop(self):
         """Manual cleanup loop if tasks extension is not available"""
         await self.bot.wait_until_ready()
         while True:
             try:
                 await asyncio.sleep(300)  # 5 minutes
-                print("--> Running manual token cleanup task...")
-                await cleanup_expired_tokens()
-                print("--> Manual token cleanup task finished.")
+                await self._execute_cleanup()
             except asyncio.CancelledError:
                 break
-            except Exception as e:
-                logger.error(f"Error during manual token cleanup: {e}")
📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between a1159d7 and 97784a4.

⛔ Files ignored due to path filters (1)
  • poetry.lock is excluded by !**/*.lock
📒 Files selected for processing (10)
  • backend/app/agents/devrel/agent.py (1 hunks)
  • backend/app/agents/devrel/nodes/handlers/faq.py (1 hunks)
  • backend/app/agents/devrel/nodes/handlers/web_search.py (2 hunks)
  • backend/app/agents/devrel/nodes/react_supervisor.py (1 hunks)
  • backend/app/agents/devrel/tool_wrappers.py (1 hunks)
  • backend/app/core/handler/faq_handler.py (1 hunks)
  • backend/integrations/discord/bot.py (5 hunks)
  • backend/integrations/discord/cogs.py (5 hunks)
  • backend/main.py (3 hunks)
  • pyproject.toml (1 hunks)
🧰 Additional context used
🧠 Learnings (7)
📚 Learning: in the devr.ai backend, the devrelagent follows a singleton pattern where only one instance exists f...
Learnt from: smokeyScraper
PR: AOSSIE-Org/Devr.AI#75
File: backend/app/agents/devrel/agent.py:34-35
Timestamp: 2025-06-13T21:56:19.183Z
Learning: In the Devr.AI backend, the DevRelAgent follows a singleton pattern where only one instance exists for the entire application lifetime, using InMemorySaver with thread-based conversation management to persist user conversations across sessions.

Applied to files:

  • backend/integrations/discord/bot.py
📚 Learning: in the devr.ai codebase, user_id directly maps as thread_id for memory persistence in the agent syst...
Learnt from: smokeyScraper
PR: AOSSIE-Org/Devr.AI#76
File: backend/app/agents/shared/base_agent.py:22-44
Timestamp: 2025-06-14T05:57:43.872Z
Learning: In the Devr.AI codebase, user_id directly maps as thread_id for memory persistence in the agent system, ensuring thread_id is always non-empty and unique per user.

Applied to files:

  • backend/integrations/discord/bot.py
📚 Learning: the handle_technical_support_node function in backend/app/agents/devrel/nodes/handle_technical_suppo...
Learnt from: smokeyScraper
PR: AOSSIE-Org/Devr.AI#72
File: backend/app/agents/devrel/nodes/handle_technical_support_node.py:6-17
Timestamp: 2025-06-08T13:15:40.536Z
Learning: The handle_technical_support_node function in backend/app/agents/devrel/nodes/handle_technical_support_node.py is intentionally minimal and will be extended after database configuration is completed.

Applied to files:

  • backend/app/agents/devrel/tool_wrappers.py
  • backend/app/agents/devrel/agent.py
  • backend/app/agents/devrel/nodes/handlers/faq.py
  • backend/app/agents/devrel/nodes/react_supervisor.py
📚 Learning: in backend/app/agents/devrel/tools/search_tool.py, the tavilysearchtool.search() method has partial ...
Learnt from: smokeyScraper
PR: AOSSIE-Org/Devr.AI#72
File: backend/app/agents/devrel/nodes/handle_web_search_node.py:31-42
Timestamp: 2025-06-08T13:31:11.572Z
Learning: In backend/app/agents/devrel/tools/search_tool.py, the TavilySearchTool.search() method has partial error handling for missing API key, AttributeError, ConnectionError, and TimeoutError, but lacks a comprehensive Exception catch-all block, so calling functions may still need additional error handling for other potential exceptions.

Applied to files:

  • backend/app/agents/devrel/tool_wrappers.py
  • backend/app/agents/devrel/nodes/handlers/web_search.py
  • backend/app/agents/devrel/agent.py
  • backend/app/agents/devrel/nodes/handlers/faq.py
📚 Learning: in backend/app/agents/devrel/tools/search_tool.py, the tavilysearchtool.search() method already incl...
Learnt from: smokeyScraper
PR: AOSSIE-Org/Devr.AI#72
File: backend/app/agents/devrel/nodes/handle_web_search_node.py:31-42
Timestamp: 2025-06-08T13:31:11.572Z
Learning: In backend/app/agents/devrel/tools/search_tool.py, the TavilySearchTool.search() method already includes comprehensive error handling that catches all exceptions and returns an empty list instead of raising them, so calling functions don't need additional try-catch blocks.

Applied to files:

  • backend/app/agents/devrel/nodes/handlers/web_search.py
  • backend/app/agents/devrel/nodes/handlers/faq.py
📚 Learning: in the devr.ai project, the application is designed to run from the backend directory, making import...
Learnt from: smokeyScraper
PR: AOSSIE-Org/Devr.AI#87
File: backend/app/api/v1/health.py:1-12
Timestamp: 2025-06-28T23:14:21.089Z
Learning: In the Devr.AI project, the application is designed to run from the backend directory, making import paths like `from main import DevRAIApplication` correct for the current setup. Import path adjustments for deployment will be configured later during the deployment process.

Applied to files:

  • backend/main.py
📚 Learning: in the devr.ai project, smokeyscraper prefers to defer test updates and fixes (like missing imports ...
Learnt from: smokeyScraper
PR: AOSSIE-Org/Devr.AI#87
File: tests/test_supabase.py:1-3
Timestamp: 2025-06-28T23:15:13.374Z
Learning: In the Devr.AI project, smokeyScraper prefers to defer test updates and fixes (like missing imports after module reorganization) to separate PRs rather than expanding the scope of module update/chore PRs to include comprehensive test refactoring.

Applied to files:

  • backend/integrations/discord/cogs.py
🧬 Code Graph Analysis (2)
backend/app/core/handler/faq_handler.py (1)
backend/app/core/events/enums.py (1)
  • EventType (10-32)
backend/app/agents/devrel/nodes/react_supervisor.py (2)
backend/app/agents/state.py (1)
  • AgentState (18-73)
backend/app/agents/devrel/nodes/generate_response.py (1)
  • _get_latest_message (97-101)
🔇 Additional comments (17)
backend/app/agents/devrel/nodes/handlers/web_search.py (1)

54-54: LGTM! Minor formatting cleanup.

The removal of the trailing whitespace and extra space improves code consistency without affecting functionality.

Also applies to: 64-64

backend/app/core/handler/faq_handler.py (1)

4-4: LGTM! Import cleanup.

Removing the unused PlatformType import improves code cleanliness.

backend/app/agents/devrel/agent.py (1)

46-47: LGTM! Correctly updated for dynamic FAQ handling.

The faq_handler_tool_node instantiation now properly passes search_tool and llm parameters, aligning with the refactored dynamic FAQ implementation.

backend/app/agents/devrel/tool_wrappers.py (1)

19-24: LGTM! Function signature correctly updated.

The faq_handler_tool_node function signature and implementation are properly updated to support the dynamic FAQ handler, passing search_tool and llm instead of the static faq_tool.

backend/app/agents/devrel/nodes/handlers/faq.py (5)

8-28: LGTM! Well-structured handler implementation.

The refactored handle_faq_node properly extracts the user message, delegates to the dynamic FAQ process, and returns a well-structured response with appropriate metadata.


30-67: LGTM! Robust implementation with excellent error handling.

The 5-step dynamic FAQ process is well-implemented with:

  • Clear step-by-step logging for debugging
  • Comprehensive error handling with fallback response
  • Proper handling of empty search results

95-129: LGTM! Excellent synthesis implementation.

The synthesis function effectively:

  • Limits context to top 5 results for optimal LLM performance
  • Provides clear, detailed instructions for response generation
  • Maintains appropriate response length constraints
  • Ensures conversational tone without exposing internal mechanics

130-145: LGTM! Clean and user-friendly response formatting.

The formatting function appropriately:

  • Presents the synthesized answer first
  • Adds a clear sources section with emoji for visual appeal
  • Limits to top 3 sources for readability
  • Uses proper markdown formatting for clickable links

146-156: LGTM! Thoughtful fallback response design.

The fallback response excellently:

  • Acknowledges the user's question
  • Provides transparent reasons for failure
  • Offers actionable suggestions for the user
  • Maintains a helpful and professional tone
backend/app/agents/devrel/nodes/react_supervisor.py (2)

72-128: Well-structured parsing implementation

The enhanced parsing logic effectively handles multi-line LLM responses with proper section detection and content accumulation. The validation against VALID_ACTIONS and fallback behavior ensures robust operation.


250-271: Well-structured response helpers

These helper functions provide consistent response structures for both error and normal completion scenarios, which aids in debugging and state management throughout the agent workflow.

backend/integrations/discord/bot.py (1)

68-68: LGTM - Code formatting improvements.

These whitespace and formatting adjustments improve code hygiene without affecting functionality.

Also applies to: 74-74, 94-94, 104-104, 117-117, 142-142

backend/main.py (2)

49-57: Clarify the temporary disabling of Discord cog extensions.

The Discord cog loading has been completely commented out, which disables slash commands and periodic cleanup tasks. While the comment mentions "troubleshooting import issues," this creates an inconsistency with the PR objectives that focus on implementing FAQ functionality.

This change effectively breaks Discord slash commands like /help, /reset, and /verify_github. Please clarify:

  1. Is this temporary disabling intentional for this PR?
  2. How does this align with implementing the Dynamic FAQ Handler?
  3. Should the FAQ functionality work without these extensions?

Consider whether the FAQ handler should be implemented as part of the existing cog structure or as a separate component.


135-135: LGTM - Minor formatting improvement.

backend/integrations/discord/cogs.py (3)

14-21: LGTM - Robust fallback for optional tasks extension.

The conditional import with a feature flag is a good approach to handle environments where the tasks extension may not be available.


42-47: LGTM - Proper cleanup task cancellation.

The cog_unload method properly handles cancellation for both cleanup approaches.


141-141: LGTM - Code formatting improvements.

Also applies to: 156-156, 217-217

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Please do follow the documented Notion. The system should pass the URLs associated with the organization which will be provided by each organization when initializing their DevRAI system.

return add_tool_result(state, "web_search", tool_result)

async def faq_handler_tool_node(state: AgentState, faq_tool) -> Dict[str, Any]:
async def faq_handler_tool_node(state: AgentState, search_tool, llm) -> Dict[str, Any]:
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Let the FAQ tool be independent of the search_tool. One of the SOLID principle while designing systems.

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I don't think any changes done in this file are relevant? What do you think? Could you please detail out why you wanted these changes? I don't think there is any relevance on changing the react_supervisor code for each handler? FAQ tool can work with the initial system too?

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FEATURE REQUEST: Implement FAQ Handler with Web Search for Organizational Queries

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