{"slug":"jpoindexter-structured-output-and-tool-calling","source_name":"jpoindexter/structured-output-and-tool-calling","name":"Jpoindexter/Structured Output And Tool Calling","description":"Reference-grade guide to getting reliable structured output and tool/function calls out of LLMs — JSON mode vs constrained/grammar-guided decoding, response_format json_schema and tool-schema coercion, Zod/Pydantic validation at the boundary, the validate→repair→escalate→fallback loop, tool-argument validation, idempotency for safe retries, fallback chains, and evals. Use when an LLM must return parseable JSON, fill typed tool arguments, or drive deterministic downstream code.","version":1,"lift":{"pass_rate_delta_pts":4.55,"pass_rate_pct":100,"total_cases":22,"passed_cases":22,"tokens_delta_pct":190.4,"turns_delta_pct":0,"verdict":"pass","benchmark_model":"gemini-3.6-flash","grading_method":"judged","completed_at":"2026-08-03T12:46:44.547646+00:00"},"skill_score":1,"benchmark_models":[{"model":"gemini-3.6-flash","headline":true,"delta_pts":4.55,"with_pass_pct":100,"without_pass_pct":95.5,"tokens_delta_pct":190.4,"turns_delta_pct":0,"total_cases":22,"cases_aggregated":22,"verdict":"pass","never_hurt":true,"completed_at":"2026-08-03T12:46:44.547646+00:00","run_id":"488757a9-cb5e-4431-97d3-e6c0721a2620","version_number":1,"is_latest_version":true,"gate":null}],"trust":{"skill_safety":"passed","safety_status":"clean","intent_verdict":"safe","content_status":"clean","indexable":true},"license":null,"install_count":0,"manifest_hash":"0ab129c60b0cac4c620d1f5abf570af43d090ffc9397682c455659959d90b0b7","raw_url":"https://app.decimal.ai/s/jpoindexter-structured-output-and-tool-calling/SKILL.md","scorecard_url":"https://app.decimal.ai/skills/jpoindexter-structured-output-and-tool-calling"}