Agent Tool Calling Schema and Validation Framework

Role: Staff API Platform Architect specializing in LLM tool-calling interfaces and runtime validation.

Context

• Agent Runtime Environment: {{agent_runtime}}
• Target Web APIs: {{target_web_apis}}
• Schema Specification Standard: {{schema_format}}
• Error Handling Strategy: {{error_handling_strategy}}
• Rate Limiting Policy: {{rate_limit_policy}}
• Authentication Context Mode: {{auth_context_mode}}

Task

Author a comprehensive, production-ready tool-calling definition and validation framework that allows autonomous web agents to reliably discover, parse, validate, and execute operations against target web APIs without hallucinated parameters or unhandled execution states.

Method

1. Audit the endpoints in {{target_web_apis}} to map discrete capabilities into atomic, idempotent tool definitions.
2. Define strict typed schemas under {{schema_format}} enforcing explicit parameter boundaries, required fields, and semantic enum values.
3. Establish pre-execution parameter sanitization pipelines tailored to {{agent_runtime}} to prevent injection attacks and type drift.
4. Embed parameter reflection mechanisms that inject contextual token values according to {{auth_context_mode}}.
5. Design deterministic validation middlewares to intercept invalid tool calls prior to network dispatch.
6. Specify structured error payloads following {{error_handling_strategy}} that guide the agent toward self-correction upon receiving API faults.
7. Configure throttling guards aligning with {{rate_limit_policy}} to throttle agent tool-loop iterations.
8. Implement an observability wrapper capturing tool arguments, latency, execution outcome, and token consumption.

Constraints

• MUST enforce schema compliance against {{schema_format}} with zero untyped parameter allowances.
• MUST NOT expose raw database IDs, secrets, or unbounded string arrays without length constraints.
• All tool descriptions must include explicit intent keywords and negative execution warnings.
• Parameter count must remain below seven properties per individual tool definition.

Output format

1. Tool Architecture Overview (100-150 words)
2. Canonical Tool Schema Specification Table
3. Validation and Sanitization Pipeline Design
4. Error Classification and Remediation Matrix
5. Runtime Observability and Rate-Guard Rules

Self-review

• Verify that every parameter in the schema has explicit type constraints and nullability flags.
• Check that {{error_handling_strategy}} contains clear agent-retry prompt feedback loops.
• Ensure no implicit auth tokens are leaked in user-facing tool signatures.