Tool Composition Patterns
Orchestrate multiple tools into sophisticated, powerful agent workflows
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When tools don't depend on each other, run them simultaneously. Parallel execution dramatically reduces total execution time by doing multiple things at once.
Instead of waiting for Tool A before starting Tool B, both run together. The agent waits for all to complete before proceeding.
Interactive: Parallel vs Sequential
See the speed difference when running tools in parallel
get_weather
1.2s
get_traffic
1.5s
get_news
0.9s
check_calendar
0.7s
When to Use Parallel Execution
Data Gathering
→ search_web
→ query_database
→ fetch_api
Collect from multiple sources simultaneously
3x faster
Content Generation
→ generate_text
→ create_image
→ fetch_data
Produce different content types at once
2.5x faster
Validation
→ check_grammar
→ verify_facts
→ scan_security
Run multiple checks in parallel
4x faster
Multi-Platform Actions
→ post_slack
→ send_email
→ update_crm
Execute across platforms simultaneously
3.5x faster
Critical Considerations
⚠️
Race Conditions
Avoid tools that modify the same resource
Solution:
Use locks or sequential execution for writes
🔒
Resource Limits
Too many parallel calls can overwhelm APIs
Solution:
Implement rate limiting and batching
🛡️
Error Handling
One failure shouldnt stop all other tools
Solution:
Isolate errors, continue with successful results
🔀
Result Ordering
Results arrive in unpredictable order
Solution:
Label results, dont assume completion order