{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.pen","code":"thing-q165447","url":"https://ver.cy/models/thing/q165447/","name":"pen","alternateNames":["ruling pen","3Doodler","FRIXION","bamboo pen","glass pen","ballpoint pen","fountain pen","drawing pen","eraser pen","Dotting pen","Swadeshi Ratnamson","Erasermate"],"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 handheld instrument for writing or drawing with liquid or paste ink, such as a ballpoint, fountain, gel, rollerball, felt-tip, glass or bamboo pen, including erasable pens.","purpose":"Let an agent handle pens by type, ink, tip, use and care.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Ink-based writing instrument","Many tip systems","Ink permanence varies","Erasable inks are heat-sensitive"],"structure":{"bundles":[{"id":"type","name":"Type","description":"Which pen.","layers":[{"id":"tip","name":"Tip","description":"Ball, nib, felt.","findings":[{"id":"tip-finding","name":"Tip","description":"Tip type.","questions":[{"text":"What tip system does it use?","kind":"definition"},{"text":"What line width?","kind":"measurement"}]}]},{"id":"ink","name":"Ink","description":"Ink type.","findings":[{"id":"ink-finding","name":"Ink","description":"Ink.","questions":[{"text":"What ink does it use?","kind":"definition"},{"text":"Is it permanent and document-proof?","kind":"boundary"}]}]}]},{"id":"use","name":"Use","description":"Writing.","layers":[{"id":"purpose","name":"Purpose","description":"Task.","findings":[{"id":"purpose-finding","name":"Purpose","description":"Purpose.","questions":[{"text":"What is it used for: signing, drawing, marking?","kind":"definition"},{"text":"Is it suitable for legal documents?","kind":"boundary"}]}]},{"id":"ergonomics","name":"Ergonomics","description":"Comfort.","findings":[{"id":"ergonomics-finding","name":"Ergonomics","description":"Ergonomics.","questions":[{"text":"Is it comfortable for long writing?","kind":"boundary"},{"text":"Are adapted pens available?","kind":"action"}]}]}]},{"id":"care","name":"Care","description":"Maintenance.","layers":[{"id":"refill","name":"Refill","description":"Cartridges.","findings":[{"id":"refill-finding","name":"Refill","description":"Refills.","questions":[{"text":"Which refill fits?","kind":"definition"},{"text":"Where can it be bought?","kind":"action"}]}]},{"id":"cleaning","name":"Cleaning","description":"Fountain pens.","findings":[{"id":"cleaning-finding","name":"Cleaning","description":"Cleaning.","questions":[{"text":"How should it be cleaned?","kind":"action"},{"text":"How often?","kind":"measurement"}]}]}]},{"id":"safety","name":"Safety","description":"Children and travel.","layers":[{"id":"caps","name":"Caps","description":"Choking.","findings":[{"id":"caps-finding","name":"Caps","description":"Cap safety.","questions":[{"text":"Does the cap meet choking-safety standards?","kind":"boundary"},{"text":"Is it suitable for young children?","kind":"boundary"}]}]},{"id":"travel","name":"Travel","description":"Pressure.","findings":[{"id":"travel-finding","name":"Travel","description":"Air travel.","questions":[{"text":"Will it leak on a flight?","kind":"boundary"},{"text":"How can leaks be prevented?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Pick up, use and store pens as the user directs.","Report when a pen is leaking or out of ink."],"mustNot":["Forge signatures or sign on anyone's behalf without valid authorization.","Leave small pen parts or caps within reach of young children.","Use a pen to write on property or documents without permission."],"requiresHuman":["Signing anything with a pen on a person's behalf requires human review and valid authorization."]},"ethics":{"considerations":["Handwriting and signatures carry legal weight and personal identity."],"affectedParties":["The person using it","Young children who can choke on caps"]},"owners":{"steward":"The person who owns it.","roles":[],"masterSystems":[]},"relations":[{"target":"Q121916","type":"parent","note":"registry parent class"},{"target":"Q126087899","type":"parent","note":"registry parent class"},{"target":"Q26972858","type":"parent","note":"registry parent class"},{"target":"writing implement","type":"related","note":"category"},{"target":"ink","type":"related","note":"material"},{"target":"pencil","type":"related","note":"writing tool"},{"target":"animal pen (enclosure)","type":"related","note":"another sense"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.pen","Wikidata: Q165447 (https://www.wikidata.org/wiki/Q165447)"]},"properties":{"applicability":"required","items":["ballpoint tip diameter: 0.3-1.6 mm - fine to broad"]},"recognition":{"applicability":"required","items":["Tip type: ball, nib, felt or fibre","Refill or cartridge","3D pens extrude plastic, not ink","A slender barrel with a tip that delivers ink."]},"capabilities":{"applicability":"required","items":["write and draw","choose ink for permanence","refill or replace cartridges","clean fountain pens"]},"hazards":{"applicability":"required","items":["Choking on caps","Erasable ink on legal documents","Leaks on flights"]},"interfaces":{"applicability":"required","items":["ISO 12757 ballpoint pens","ISO 11540 cap safety to reduce choking risk","ISO 12757-2 document use inks"]},"context":{"applicability":"required","items":["Writing, drawing, signing and marking.","ballpoint pens","fountain pens","gel and rollerball pens","felt-tip and markers","dip, glass and bamboo pens","3D pens"]}},"sources":[{"title":"Wikidata item Q165447: pen","url":"https://www.wikidata.org/wiki/Q165447","note":"identity and sense of the item"},{"title":"Wikipedia: Pen","url":"https://en.wikipedia.org/wiki/Pen","note":"general description of the item"}],"openQuestions":["Should pen types be separate entries?","How should ink permanence be recorded?","How should the enclosure sense be split off?"],"resources":{"spec":"/models/things/publications/thing-q165447/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q165447/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T07:09:30Z","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 2026-10-07T12:16:29+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}