Tools & Integration · Software component
Tool Selector
Software componentTools & IntegrationOrchestration & Toolsarc:ToolSelector
A software component that prioritizes candidate tools for a query using historical success on similar queries.
Responsibility. Ranks candidate tools by historical success on similar queries.
Also known as: Graph-enhanced tool selection, Strategic Tool Filter, Tool selection mechanism, Learned tool routing model
Relationships
is configured by structural
is invoked by dependency
- Agent Controller abstract Ch1.7B
reads dependency
receives data from dynamic
sends data to dynamic
is evaluated by assurance
is monitored by assurance
Design guidance
- SHOULD expose only the tools relevant to the classified query rather than the full catalogue.
Quantitative guidance
As stated by the sources; verify before use.
- Agents facing 20+ tools show 15-20% higher tool-selection error rates than with 5-10 relevant tools (Ch3.4).
- Removing usage examples from tool documentation drops tool selection accuracy 5-15% (Ch3.7).
Classification
- Patterns
- Experience feedback loopQuery-classification-based tool filtering
- Quality attributes
- Flexibility (ISO/IEC 25010)
- Risks mitigated
- Hard-coded tool selection rulesSwiss Army knife syndrome (degraded selection with too many tools)
Sources
- Ch1.7B: T. Nguyen, "Relational Reasoning with Knowledge Graphs - Hybrid RAG+KG Integration," in Mastering Agentic AI Systems: Guide for the NVIDIA NCP-AAI Exam, 1st ed. 2026, ch. 1.7B. ISBN: 9798244538229.
- Ch3.4: T. Nguyen, "Tuning Model Parameters for Production Performance," in Mastering Agentic AI Systems: Guide for the NVIDIA NCP-AAI Exam, 1st ed. 2026, ch. 3.4. ISBN: 9798244538229.
- Ch3.7: T. Nguyen, "Tool Usage Auditing," in Mastering Agentic AI Systems: Guide for the NVIDIA NCP-AAI Exam, 1st ed. 2026, ch. 3.7. ISBN: 9798244538229.