Search Fallback Workflow

When to Apply

Use this workflow when:

• search_web

  tool fails repeatedly (typically 2+ consecutive failures)
• External information is needed but unavailable due to tool limitations
• Task completion is still possible with reasonable confidence using internal knowledge
• The output can include appropriate caveats about verification needs

Core Pattern

1. Detect Search Failure

   • Monitor

     search_web

     responses for errors, empty results, or timeouts
   • After 2 consecutive failures, assess whether the task can proceed without fresh data

2. Assess Feasibility

   • Determine if internal knowledge is sufficient for the task at hand
   • Identify which sections/claims require external verification
   • Evaluate risk level: Can the task proceed safely with caveats?

3. Proceed with Internal Knowledge

   • Continue the task using well-established facts, regulations, or principles
   • Prioritize accuracy over completeness when uncertain
   • Use conservative language for claims that cannot be verified

4. Flag for Verification

   • Clearly mark any claims that should be verified:

     [VERIFICATION NEEDED: Search tool unavailable during generation]
     

   • Include a verification checklist in the execution summary
   • Distinguish between high-confidence and low-confidence assertions

5. Document Limitations

   • Include an explicit note in the output about search unavailability
   • List specific items requiring follow-up verification
   • Provide recommendations for manual verification steps

Implementation Template

## Execution Notes

**Search Tool Status**: Unavailable during generation

**Confidence Levels**:
- ✓ High confidence: Established regulations, well-documented facts
- ⚠ Medium confidence: Industry standards, commonly accepted practices  
- ✗ Requires verification: Time-sensitive data, recent changes, specific citations

**Verification Checklist**:
- [ ] Verify citation: [specific reference]
- [ ] Confirm current status: [specific item]
- [ ] Review recent updates: [specific topic]

Code Pattern for Agents

# Pseudocode for search fallback detection
search_attempts = 0
max_search_attempts = 2
search_failed = False

for query in required_searches:
    result = search_web(query)
    if result.success:
        process_result(result)
    else:
        search_attempts += 1
        if search_attempts >= max_search_attempts:
            search_failed = True
            log_warning("Search tool unavailable, proceeding with fallback")
            break

if search_failed:
    # Apply graceful degradation
    content = generate_with_internal_knowledge()
    add_verification_flags(content)
    document_limitations_in_summary()

Example Output Structure

When using this fallback, structure documents with clear sections:

# Document Title

## Disclaimer
This document was generated with limited access to external verification tools.
Items marked with [VERIFICATION NEEDED] should be confirmed before final use.

## Content Sections
[Standard content with internal knowledge]

## Items Requiring Verification
- Topic A: Current regulatory status needs confirmation
- Topic B: Recent policy changes should be checked
- Topic C: Specific citations require source validation

## Recommendations
1. Cross-reference with official sources
2. Verify time-sensitive information
3. Consult subject matter experts for critical decisions

Best Practices

1. Don't fabricate citations - Better to flag as unverified than invent sources
2. Use conservative language - "Generally," "Typically," "Commonly" instead of absolutes
3. Prioritize safety - If misinformation could cause harm, recommend manual verification
4. Track what's missing - Maintain a clear list of items needing follow-up
5. Be transparent - Clearly communicate limitations to end users

When NOT to Use This Pattern

• Tasks requiring current/real-time data (stock prices, news, weather)
• Legal or medical advice requiring authoritative sources
• Compliance documentation where citations are mandatory
• Situations where incorrect information could cause significant harm

Related Patterns

• citation-management

  : Handling references and sources in documents

• error-recovery-workflow

  : General patterns for tool failure recovery

• confidence-annotation

  : Marking certainty levels in generated content