Lesson 1490 of 2116
How Strict Vendors Are About Tool Call Schemas
Vendors differ in whether they validate tool args before returning; design defensively across families.
Lesson map
What this lesson covers
Learning path
The main moves in order
- 1The premise
- 2tool calls
- 3schema validation
- 4robustness
Concept cluster
Terms to connect while reading
Section 1
The premise
Some vendors enforce JSON-schema strictly, others let malformed args through; your runtime must validate either way.
What AI does well here
- Validate tool args at the runtime, not just trust the model
- Compare invalid-arg rates across vendors
- Pick strict-mode flags where offered
What AI cannot do
- Trust the model to be perfect on schemas
- Make a model emit a schema feature it doesn't support
- Replace runtime guards
Key terms in this lesson
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