Glossary
Tool Calling
A structured request for an external system to perform an action.
Reviewed as part of AI Tooling Terms for Finance Readers, using the primary references listed below. Updated 2026-07-19.
Plain-English meaning
Tool Calling is used here to describe a structured request for an external system to perform an action. In the daily board, the word is grouped by the role it performs rather than by spelling or market popularity.
You may encounter it in a product interface, technical document, risk report, policy paper, or market dashboard. The term is included for recognition and comparison, not as a product recommendation.
Important boundary
The model proposes a call; permissions and application code decide what is allowed.
When this word appears in a report, identify the mechanism being described before treating the label as a conclusion. Similar terms can point to different causes, controls, or outcomes.
Why it belongs with Agent Runtime Ops
These terms cover the runtime building blocks used to ground model outputs, choose tools, and measure agent quality.
When solving the puzzle, compare the job this term performs with nearby cards. A correct group usually shares a function, risk type, workflow, or market structure rather than simply sharing similar wording.
Where you might see it
You might encounter this term while reading educational explainers, product documentation, risk disclosures, market dashboards, or beginner guides. Always separate vocabulary learning from financial decision-making.
Reading cue
Reading an AI workflow as a chain of controls
Use the full guide's applied scenario to ask where Tool Calling enters the process, what evidence supports it, and which nearby concept it could be confused with.
Read the complete applied scenarioNearby concepts
Compare before you memorize
Retrieval
Selecting outside information to place in model context.
Retrieval supplies evidence; it does not guarantee that the model uses it correctly.Evaluation
Testing behavior against examples, metrics, or review criteria.
Evaluation measures performance; monitoring watches behavior after deployment.Guardrail
A policy or control that constrains inputs, outputs, or actions.
A guardrail reduces risk but does not replace system testing or human accountability.Knowledge check
Check the distinction
What should be checked before an AI tool can modify financial records?
Permission scope, validation rules, approval requirements, audit logs, and a recovery path.
Source trail
References behind this explanation
These references support the surrounding guide and concept boundaries. Open the full source when you need the original technical or policy context.
Primary risk framework for governing, mapping, measuring, and managing AI systems.
National Institute of Standards and TechnologyAI Test, Evaluation, Validation and VerificationPrimary reference for evaluating whether AI systems meet intended requirements.