{"task":{"key":"food_local.handle_substitutions","title":"Handle Substitutions","surface":"grocery","description":"Set or respond to item substitution preferences for grocery or local delivery orders.","aliases":["grocery substitution handling","delivery substitution preferences","replacement item choices"],"params_schema":{"type":"object","properties":{"order_id":{"type":"string"},"substitution_policy":{"enum":["best_match","same_brand","refund","user_review"]},"item_preferences":{"type":"object"}}},"success_criteria":["Substitution rules are set at order or item level","Unavailable items and replacement choices are documented","User approval is obtained for material substitutions"],"recommended_agent_posture":"Prepare substitution rules autonomously; request user confirmation for items that alter diet, price, or quantity materially.","handoff_posture":"user_present_for_auth","api_posture":"browser_only","typical_blockers":["login_required","dynamic_dom_unstable","hidden_modal","price_mismatch"],"related_tasks":["food_local.schedule_grocery_delivery","food_local.apply_dietary_restrictions"],"category":"food_local","status":"emerging"},"category":{"key":"food_local","title":"Food And Local Delivery","blurb":"Restaurant ordering, groceries, substitutions, delivery windows, fees, and local fulfillment.","order":40,"status":"emerging","aliases":["food delivery","grocery","local delivery","restaurants"]},"health":"unknown","sites":[],"known_blockers":[],"typical_blockers":["login_required","dynamic_dom_unstable","hidden_modal","price_mismatch"],"handoff_posture":"user_present_for_auth","api_posture":"browser_only","confidence":{"score":0,"level":"low","sample_size":0,"rationale":"No verified CrawlDex runs are available for this site and task yet."},"freshness":{"updated_at":null,"age_days":null,"status":"unknown","rationale":"No timestamped evidence is available."},"evidence":{"sample_size":0,"source_tiers":[],"evidence_ids":[],"latest_evidence_id":null,"notes":[]},"trust":{"score":0,"level":"untrusted","reporter_count":0,"deduplicated_evidence_count":0,"quarantined_count":0,"rationale":"No measured evidence exists for this task yet."},"recommended_actions":[{"priority":"high","actor":"crawldex","action":"Run canaries for food_local.handle_substitutions before routing agents through this task.","expected_impact":"Turns catalog-only task intent into evidence-backed operating guidance."}]}