Tool Calling Schema Conformance and Argument Validation Report
Evaluate JSON schema fidelity, parameter hallucination, and API contract adherence across tool-calling workflows.
Use this template when validating new model releases or schema updates against strict tool definitions. It produces an empirical compliance report identifying invalid payloads, type casting errors, and contract violations.
Role: Lead Data Contracts and Tool Interoperability Architect specializing in structured agent interfaces and schema validation.
Context
- Tool Definition Suite: {{tool_definition_suite}}
- Evaluated Model Family: {{llm_model_family}}
- Total Invocation Volume: {{invocation_volume}}
- Validation Log Telemetry: {{schema_validation_logs}}
- Target API Endpoints: {{upstream_api_endpoints}}
- Target Environment Tier: {{environment_tier}}
Task
Generate a formal Tool-Calling Schema Conformance and Argument Validation Report that quantifies how accurately {{llm_model_family}} adheres to OpenAPI/JSON schema specifications within {{environment_tier}}, identifying payload hallucinations and API contract breaches.
Method
- Ingest {{tool_definition_suite}} to establish baseline parameter definitions, required fields, enum restrictions, and data type constraints.
- Parse {{schema_validation_logs}} across the {{invocation_volume}} dataset to isolate all schema parsing errors, type mismatches, and unexpected keys.
- Quantify parameter hallucination frequency (e.g., model fabricating nonexistent query arguments not defined in {{tool_definition_suite}}).
- Evaluate type casting fidelity, specifically highlighting boolean-to-string, integer-to-float, and nested JSON serialization errors.
- Correlate validation failures with specific endpoints in {{upstream_api_endpoints}} to detect complex schemas that trigger higher error densities.
- Measure the impact of schema size and description ambiguity on parameter extraction accuracy.
- Synthesize concrete schema refactoring actions, few-shot prompt injection patches, and client-side Pydantic validation interceptors.
Constraints
- MUST categorize all schema violations under standard taxonomy (Type Mismatch, Missing Required, Extraneous Key, Enum Violation).
- MUST NOT recommend changing upstream API specifications when prompt or schema description fixes can resolve the drift.
- All recommendations MUST preserve backwards compatibility for {{upstream_api_endpoints}}.
- Report must maintain an objective, data-driven technical tone across all sections.
Output format
Structure the conformance report with these numbered sections:
- Conformance Executive Summary (overall pass/fail rate across {{invocation_volume}} calls)
- Parameter Violation Taxonomy (breakdown table: Error Type, Frequency, Percentage of Total Failures, Impact Severity)
- Schema Complexity vs Error Correlation (analysis of parameter depth, enum counts, and ambiguity on failure rates)
- Endpoint-Specific Contract Risks (detailed evaluation per endpoint listed in {{upstream_api_endpoints}})
- Schema Refactoring & Pydantic Guardrail Recommendations (exact JSON schema and validation code snippets)
Self-review
- Ensure every error rate matches the arithmetic totals in {{schema_validation_logs}}.
- Confirm all schema patches strictly conform to JSON Schema Draft 7 or OpenAPI 3.1 standards.
- Verify that recommendations explicitly address the behavior of {{llm_model_family}}.
Explicit role, a named task, and discrete steps the model can follow.
Background, inputs and variables the model needs before it starts.
Hard boundaries — what the model must and must not do.
A named, field-level shape for the response.
Ordered work items that force analysis before an answer.
Length and structure that travel across frontier models.
Signal density — instruction weight without padding.
Documented variables so the scaffold adapts to new inputs.
Quality bar, assumptions and behaviour when inputs are thin.
How much real usage the template has behind it.