Tool Call Schema Validator

Validate model-proposed tool calls against a small runtime schema.

Requirements

• Define validate_call(call, schemas).
• schemas maps tool name to a schema dict.
• Each schema has required and optional optional field maps.
• Field type names can be str, int, float, bool, list, or dict.
• Return a list of error strings.
• Return [] when the call is valid.
• Reject unknown tools.
• Reject missing required fields.
• Reject extra fields not in required or optional maps.
• Reject wrong field types.

Example

Constraints

• Keep error order deterministic.
• bool is not accepted for int.
• Do not execute the tool.