{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.knife","code":"thing-q32489","url":"https://ver.cy/models/thing/q32489/","name":"knife","alternateNames":["splitting band knife","wood splitting knife","shoe knife","snow knife","scalpel","race knife","drawknife","crooked knife","hacking knife","marking knife","ballpoint pen knife","grafter"],"kind":"thing","status":"published","version":"0.2.0-wave.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.OBJ"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A tool with a cutting edge or blade, usually attached to a handle, used for cutting; kinds range from kitchen and pocket knives to scalpels and industrial knives.","purpose":"Let an agent handle knives by type, blade, use and safety, and carry the legal rules on carrying and selling them.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["A cutting tool with an edge and handle","Fixed or folding blade","Subject to carry, sale and age laws","Specialised knives such as scalpels are medical devices"],"structure":{"bundles":[{"id":"design","name":"Design","description":"Blade and handle.","layers":[{"id":"blade","name":"Blade","description":"Shape, length, material.","findings":[{"id":"blade-finding","name":"Blade","description":"Blade details.","questions":[{"text":"What are the blade shape, length and material?","kind":"measurement"},{"text":"Is it fixed or folding, and does it lock?","kind":"definition"}]}]},{"id":"use","name":"Use","description":"Intended purpose.","findings":[{"id":"use-finding","name":"Use","description":"Intended use.","questions":[{"text":"What is this knife designed for?","kind":"definition"},{"text":"Is it suitable for the task?","kind":"boundary"}]}]}]},{"id":"safety","name":"Safety","description":"Avoiding injury.","layers":[{"id":"handling","name":"Handling","description":"Technique.","findings":[{"id":"handling-finding","name":"Handling","description":"Safe technique.","questions":[{"text":"How should it be held and used safely?","kind":"action"},{"text":"What first aid applies to a deep cut?","kind":"action"}]}]},{"id":"storage","name":"Storage","description":"Blocks, sheaths, children.","findings":[{"id":"storage-finding","name":"Storage","description":"Safe storage.","questions":[{"text":"How should it be stored away from children?","kind":"action"},{"text":"Is a sheath needed?","kind":"definition"}]}]}]},{"id":"maintenance","name":"Maintenance","description":"Sharpening and care.","layers":[{"id":"sharpening","name":"Sharpening","description":"Edge angle and method.","findings":[{"id":"sharpening-finding","name":"Sharpening","description":"Sharpening method.","questions":[{"text":"How should it be sharpened, at what angle?","kind":"action"},{"text":"How often?","kind":"measurement"}]}]},{"id":"cleaning","name":"Cleaning","description":"Hygiene and corrosion.","findings":[{"id":"cleaning-finding","name":"Cleaning","description":"Cleaning rules.","questions":[{"text":"How should it be cleaned?","kind":"action"},{"text":"Is it dishwasher safe?","kind":"boundary"}]}]}]},{"id":"law","name":"Law","description":"Carrying and selling.","layers":[{"id":"carry","name":"Carrying","description":"Public carry rules.","findings":[{"id":"carry-finding","name":"Carry rules","description":"Carry restrictions.","questions":[{"text":"May this knife be carried in public here?","kind":"boundary"},{"text":"What counts as a good reason?","kind":"boundary"}]}]},{"id":"sale","name":"Sale","description":"Age and type restrictions.","findings":[{"id":"sale-finding","name":"Sale rules","description":"Sale restrictions.","questions":[{"text":"Which age and type restrictions apply to sale?","kind":"boundary"},{"text":"Are some types banned?","kind":"boundary"}]}]}]}]},"agentConduct":{"may":["Describe knives, their uses, care and safe handling.","Store knives safely, such as out of reach of children."],"mustNot":["Help use a knife to threaten or harm a person.","Help carry knives where the law forbids it.","Sell knives to people below the legal age.","Leave knives where children can reach them."],"requiresHuman":["Handing a knife to a person who may be at risk of harming themselves or others."]},"ethics":{"considerations":["Knives are essential tools and also weapons; context decides which."],"affectedParties":["Users","Children","Potential victims of knife crime"]},"owners":{"steward":"The person who owns it; the law regulates sale and carrying.","roles":[],"masterSystems":[]},"relations":[{"target":"Q28692583","type":"parent","note":"registry parent class"},{"target":"Q39546","type":"parent","note":"registry parent class"},{"target":"Q8205328","type":"parent","note":"registry parent class"},{"target":"tool","type":"related","note":"hand tool"},{"target":"blade and handle","type":"contains","note":"parts"},{"target":"weapons and carry law","type":"related","note":"legal limits"},{"target":"weapon","type":"related","note":"context decides"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.knife","Wikidata: Q32489 (https://www.wikidata.org/wiki/Q32489)"]},"properties":{"applicability":"required","items":["blade length: 20-300 mm - carry laws often set limits around 3 inches or 7.6 cm","steel hardness: 52-64 HRC"]},"recognition":{"applicability":"required","items":["A blade with a sharpened edge and a handle","Blade shape and length indicate use","Folding and locking mechanisms matter for carry laws","A blade of steel, ceramic or other material with an edge, fixed to or folding into a handle."]},"capabilities":{"applicability":"required","items":["cut with it","sharpen and maintain it","buy, sell and carry it, within the law","store it safely"]},"hazards":{"applicability":"required","items":["Cuts, the most common kitchen injury","Blade failure or folding knives closing on fingers","Illegal carrying"]},"interfaces":{"applicability":"required","items":["National laws on carrying bladed articles","Age restrictions on sale","ISO 8442 materials for food contact cutlery","Medical device rules for scalpels"]},"context":{"applicability":"required","items":["Cutting food, materials and tissue.","kitchen knives","pocket and folding knives","utility and craft knives","scalpels","woodworking knives such as drawknives","industrial knives"]}},"sources":[{"title":"Wikidata item Q32489: knife","url":"https://www.wikidata.org/wiki/Q32489","note":"identity and sense of the item"},{"title":"Wikipedia: Knife","url":"https://en.wikipedia.org/wiki/Knife","note":"general description of the item"}],"openQuestions":["Should knife types be separate entries?","How should carry laws be recorded per jurisdiction?","How should agents answer questions touching violence?"],"resources":{"spec":"/models/things/publications/thing-q32489/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q32489/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T05:07:43Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-06T19:51:58+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}