{
    "model": {
        "rank": 3905,
        "code": "thing-q474188",
        "model_id": "vr.tr.chisel",
        "name": "chisel",
        "purpose": "Enable an AI agent to recognise a chisel, assess its suitability and condition for a material-removal task, and determine appropriate use or maintenance.",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.OBJ",
        "industry": "",
        "version": "",
        "url": "/models/thing/q474188/",
        "tier": 2,
        "score": 80,
        "payload": {
            "layer": "wikidata",
            "aliases": [
                "pointer",
                "brick chisel",
                "burin",
                "cutters with tongue-in-tip cat",
                "moulding chisel",
                "woodworking chisel",
                "pitching chisel",
                "spitsticks",
                "fishtail",
                "carpenter's chisel",
                "Japanese chisel",
                "cold chisel",
                "bolster",
                "stone chisel",
                "Subbia",
                "multiple graver",
                "tint tool",
                "stone burin",
                "butt chisel",
                "paring chisel",
                "bevel-edge chisel",
                "skew chisel",
                "firmer chisel",
                "mortise chisel",
                "corner chisel",
                "slick"
            ],
            "aliasCount": 26,
            "merged": 27,
            "knownIn": 80,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q474188",
                "url": "https://www.wikidata.org/wiki/Q474188",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-09T19:02:03Z",
                "providers": [
                    "Codex"
                ],
                "breadth": "recalled by Codex without web access - no source was read",
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "seconds": 23.4,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a0878b-8446-7771-9f97-90b854e4cf64\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: chisel\nSense to describe: (none recorded)\nDomain code: PHY.OBJ\nAlso known as: (none)\n\n\nContext for this batch of 695 things:\n# Batch 004: 1001 registere",
                        "usd": 0,
                        "recall": true
                    },
                    "codex": {
                        "seconds": 61.3,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a0878b-843d-7740-b0bb-90b1c82a4bae\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: chisel\nRegistry id: vr.tr.chisel\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nContext fo"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q474188",
                "registryId": "vr.tr.chisel",
                "name": "chisel",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "PHY.OBJ"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q474188/",
            "model": {
                "registry_id": "vr.tr.chisel",
                "name": "chisel",
                "purpose": "Enable an AI agent to recognise a chisel, assess its suitability and condition for a material-removal task, and determine appropriate use or maintenance.",
                "definition": "A chisel is a cutting tool with a sharpened edge at the end of a blade or shank, used to remove or split material by applied pressure or blows delivered manually or by a powered driver.",
                "scope_statement": "This model covers chisel as a kind of physical cutting tool, including hand-held chisels and chisel bits driven by a separate powered tool; it owns the cutting implement's geometry, working interfaces, capabilities and condition, while distinguishing the kind from a product model or individual unit.",
                "in_scope": [
                    "Recognition of chisels and distinctions among their material-specific forms",
                    "Cutting-edge, bevel, blade and shank geometry",
                    "Intended workpiece materials and cutting or breaking operations",
                    "Hand-pressure, striking and powered-driver interfaces",
                    "Edge condition, attachment integrity and maintenance limits",
                    "Evidence supporting task suitability and operating restrictions"
                ],
                "out_of_scope": [
                    "The complete powered hammer or other machine driving a chisel bit",
                    "Mallets, hammers and other separate striking tools",
                    "Workpiece identity, composition and structural assessment beyond chisel compatibility",
                    "Clamps, benches and other workholding equipment",
                    "Complete woodworking, masonry or metalworking processes",
                    "Product catalogues and individual-tool histories except as evidence attached to an instance"
                ],
                "distinguishing_features": [
                    "Has an identifiable cutting edge intended to remove or separate material by advancing into the workpiece under applied pressure or blows.",
                    "Unlike a punch, its operative feature is a cutting edge rather than a point or face primarily intended to indent, mark or drive another component.",
                    "Unlike a plane, the chisel implement does not inherently include a sole and body that guide the cut and constrain blade projection.",
                    "Unlike a drill or rotary burr, its intended cutting action does not depend on continuous rotation.",
                    "A curved cutting profile requires an explicit boundary decision with gouges; curvature alone should not silently determine registry membership."
                ],
                "characteristics": [
                    {
                        "name": "Chisel form",
                        "kind": "category",
                        "unit_or_values": "Examples: bevel-edge woodworking, mortise, cold, masonry, powered chisel bit; unresolved",
                        "why_it_matters": "Separates forms whose geometry, loading and intended materials differ."
                    },
                    {
                        "name": "Intended workpiece material",
                        "kind": "relation",
                        "unit_or_values": "Links to material kinds, with manufacturer or other supporting evidence",
                        "why_it_matters": "A cutting edge suitable for one material may be unsuitable for another."
                    },
                    {
                        "name": "Cutting-edge width",
                        "kind": "measurement",
                        "unit_or_values": "mm; identify where and how measured",
                        "why_it_matters": "Constrains access, cut width and task fit."
                    },
                    {
                        "name": "Edge and blade profile",
                        "kind": "category",
                        "unit_or_values": "Edge: straight, skewed, curved, other; blade section and taper recorded separately",
                        "why_it_matters": "Determines the shape of contact and clearance within a cut."
                    },
                    {
                        "name": "Bevel geometry",
                        "kind": "measurement",
                        "unit_or_values": "degrees; distinguish bevel-to-face angle, included edge angle and secondary bevel",
                        "why_it_matters": "Makes sharpening and suitability assessments interpretable."
                    },
                    {
                        "name": "Working length and blade thickness",
                        "kind": "measurement",
                        "unit_or_values": "mm; specify reference points",
                        "why_it_matters": "Constrains reach, clearance and resistance to bending."
                    },
                    {
                        "name": "Blade material and treatment",
                        "kind": "category",
                        "unit_or_values": "Documented alloy, insert material and heat treatment; unknown where unverified",
                        "why_it_matters": "Informs maintenance methods and susceptibility to damage."
                    },
                    {
                        "name": "Permitted driving mode",
                        "kind": "category",
                        "unit_or_values": "Hand pressure, specified mallet, specified hammer, compatible powered driver, unknown",
                        "why_it_matters": "Prevents inferring impact suitability from appearance alone."
                    },
                    {
                        "name": "Handle or driver connection",
                        "kind": "category",
                        "unit_or_values": "Tang, socket, integral body, documented powered shank system, other",
                        "why_it_matters": "Determines force transfer and attachment compatibility."
                    },
                    {
                        "name": "Cutting-edge condition",
                        "kind": "state",
                        "unit_or_values": "Serviceable for stated task, dull, chipped, rolled, cracked, unassessed",
                        "why_it_matters": "Distinguishes a usable edge from one requiring maintenance or withdrawal."
                    },
                    {
                        "name": "Body and connection condition",
                        "kind": "state",
                        "unit_or_values": "Sound, loose handle, split handle, bent blade, damaged shank, deformed striking end, cracked, unassessed",
                        "why_it_matters": "Captures failures that sharpening alone cannot resolve."
                    }
                ],
                "affordances": [
                    "Classify a candidate implement and record uncertainty at boundaries with punches, gouges and scrapers.",
                    "Match chisel geometry and documented material compatibility to a proposed cut.",
                    "Determine whether a proposed mallet, hammer or powered driver is compatible.",
                    "Inspect the cutting edge, body and connection before assigning a serviceability state.",
                    "Select an evidence-supported sharpening, repair or replacement action.",
                    "Record task-specific restrictions and stop-use conditions."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "chisel-identity-and-task-fit",
                        "name": "Chisel identity and task fit",
                        "description": "Establishes which chisel form is represented and what material-removal work it supports.",
                        "rationale": "The name chisel spans tools whose intended materials and loading differ substantially.",
                        "layers": [
                            {
                                "id": "recognition-and-boundaries",
                                "name": "Recognition and boundaries",
                                "description": "Identifies the operative cutting feature and resolves neighbouring tool categories.",
                                "findings": [
                                    {
                                        "id": "edge-led-material-removal",
                                        "name": "Edge-led material removal",
                                        "description": "Record the cutting edge and intended action that justify identifying the implement as a chisel.",
                                        "questions": [
                                            {
                                                "text": "Which physical feature acts as the cutting edge, and how is it advanced into the workpiece?",
                                                "kind": "definition",
                                                "id": "edge-led-material-removal-q01"
                                            },
                                            {
                                                "text": "What distinguishes this form from a punch, gouge, scraper or plane blade under the registry's classification?",
                                                "kind": "boundary",
                                                "id": "edge-led-material-removal-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "material-and-operation-fit",
                                "name": "Material and operation fit",
                                "description": "Connects the chisel form to intended materials and operations.",
                                "findings": [
                                    {
                                        "id": "supported-cutting-tasks",
                                        "name": "Supported cutting tasks",
                                        "description": "Record supported tasks such as paring, chopping, cutting metal or breaking masonry without treating them as interchangeable.",
                                        "questions": [
                                            {
                                                "text": "Which workpiece materials and cutting or breaking operations are documented for this chisel form?",
                                                "kind": "provenance",
                                                "id": "supported-cutting-tasks-q01"
                                            },
                                            {
                                                "text": "Does the proposed task require a different chisel form because of access, cut shape or loading?",
                                                "kind": "action",
                                                "id": "supported-cutting-tasks-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "cutting-geometry-and-construction",
                        "name": "Cutting geometry and construction",
                        "description": "Describes the edge, blade and material properties relevant to cutting and maintenance.",
                        "rationale": "Chisel suitability depends on geometry and construction that the tool name alone does not establish.",
                        "layers": [
                            {
                                "id": "edge-and-clearance-geometry",
                                "name": "Edge and clearance geometry",
                                "description": "Captures the dimensions and profiles that determine contact with the workpiece.",
                                "findings": [
                                    {
                                        "id": "measurable-cutting-profile",
                                        "name": "Measurable cutting profile",
                                        "description": "Record cutting width, bevel geometry, blade section and usable reach using explicit measurement references.",
                                        "questions": [
                                            {
                                                "text": "What are the edge width, blade thickness and usable working length in millimetres?",
                                                "kind": "measurement",
                                                "id": "measurable-cutting-profile-q01"
                                            },
                                            {
                                                "text": "What are the edge profile and bevel angles, and which faces define each reported angle?",
                                                "kind": "measurement",
                                                "id": "measurable-cutting-profile-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "blade-material-and-edge-construction",
                                "name": "Blade material and edge construction",
                                "description": "Separates documented material properties from assumptions based on appearance.",
                                "findings": [
                                    {
                                        "id": "edge-material-evidence",
                                        "name": "Edge material evidence",
                                        "description": "Record whether the edge is integral, laminated or an attached insert, together with available material and treatment evidence.",
                                        "questions": [
                                            {
                                                "text": "What source establishes the blade material, edge construction and any heat treatment?",
                                                "kind": "provenance",
                                                "id": "edge-material-evidence-q01"
                                            },
                                            {
                                                "text": "What maintenance restrictions follow from that documented construction?",
                                                "kind": "action",
                                                "id": "edge-material-evidence-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "driving-and-force-control",
                        "name": "Driving and force control",
                        "description": "Defines how force reaches the edge and how the chisel is retained and directed.",
                        "rationale": "Hand pressure, striking and powered percussion require different interfaces and evidence of compatibility.",
                        "layers": [
                            {
                                "id": "force-input-interface",
                                "name": "Force input interface",
                                "description": "Identifies permitted driving modes and compatible force-input components.",
                                "findings": [
                                    {
                                        "id": "permitted-driving-and-retention",
                                        "name": "Permitted driving and retention",
                                        "description": "Record the handle, striking end or powered shank and the evidence supporting its proposed use.",
                                        "questions": [
                                            {
                                                "text": "Is this chisel intended for hand pressure, striking or powered percussion, and what establishes that?",
                                                "kind": "provenance",
                                                "id": "permitted-driving-and-retention-q01"
                                            },
                                            {
                                                "text": "Which striker or driver and retention interface are compatible with the documented design?",
                                                "kind": "action",
                                                "id": "permitted-driving-and-retention-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "cut-direction-and-engagement",
                                "name": "Cut direction and engagement",
                                "description": "Connects edge orientation and force direction to a specific cutting task.",
                                "findings": [
                                    {
                                        "id": "controlled-edge-advance",
                                        "name": "Controlled edge advance",
                                        "description": "Record the intended edge orientation, travel path and task constraints before use.",
                                        "questions": [
                                            {
                                                "text": "How should the bevel and cutting edge be oriented for the proposed cut and desired surface?",
                                                "kind": "action",
                                                "id": "controlled-edge-advance-q01"
                                            },
                                            {
                                                "text": "Would the proposed motion impose twisting, levering or other loading beyond the chisel's documented intended use?",
                                                "kind": "boundary",
                                                "id": "controlled-edge-advance-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "condition-maintenance-and-use-limits",
                        "name": "Condition, maintenance and use limits",
                        "description": "Assesses cutting readiness, structural integrity and evidence-supported maintenance.",
                        "rationale": "A chisel may retain its recognisable shape while edge damage or connection failure makes a proposed use unsuitable.",
                        "layers": [
                            {
                                "id": "edge-and-load-path-inspection",
                                "name": "Edge and load-path inspection",
                                "description": "Checks the cutting edge and the components transmitting pressure or impact.",
                                "findings": [
                                    {
                                        "id": "serviceability-for-proposed-use",
                                        "name": "Serviceability for proposed use",
                                        "description": "Record observed defects separately from the decision to use, maintain or withdraw the chisel.",
                                        "questions": [
                                            {
                                                "text": "Is there edge chipping, rolling, cracking or dullness, and are the body, handle, striking end and shank sound?",
                                                "kind": "measurement",
                                                "id": "serviceability-for-proposed-use-q01"
                                            },
                                            {
                                                "text": "Which observed conditions require maintenance or withdrawal before the proposed driving mode is used?",
                                                "kind": "action",
                                                "id": "serviceability-for-proposed-use-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "restoration-and-operating-restrictions",
                                "name": "Restoration and operating restrictions",
                                "description": "Captures permissible restoration and task-specific constraints without assuming universal sharpening or impact limits.",
                                "findings": [
                                    {
                                        "id": "documented-maintenance-and-restrictions",
                                        "name": "Documented maintenance and restrictions",
                                        "description": "Link sharpening, repair, replacement and use restrictions to guidance applicable to the actual chisel form.",
                                        "questions": [
                                            {
                                                "text": "What applicable manufacturer guidance or identified standard governs sharpening geometry, repair limits or replacement?",
                                                "kind": "provenance",
                                                "id": "documented-maintenance-and-restrictions-q01"
                                            },
                                            {
                                                "text": "What controls are required for the exposed edge, possible slip path and flying fragments in the proposed task?",
                                                "kind": "action",
                                                "id": "documented-maintenance-and-restrictions-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "evidence-and-external-alignment",
                        "name": "Evidence and external alignment",
                        "description": "What the world already says about this thing, gathered so the model can be checked against it.",
                        "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.",
                        "layers": [
                            {
                                "id": "reported-evidence",
                                "name": "Reported evidence",
                                "description": "Findings from the breadth pass, kept separate from the structural claims.",
                                "findings": [
                                    {
                                        "id": "evidence-confidence-notes",
                                        "name": "Check these first",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "The sense covered is the physical cutting-tool kind, including hand-operated tools and chisel attachments for powered tools.",
                                            "Measurement ranges are approximate examples for bench woodworking chisels, not limits for the whole category.",
                                            "Applicable standards and material requirements should be checked for the specific chisel type; none are asserted from recall."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-confidence-notes-q01",
                                                "text": "Which of these check these first hold for the sense of chisel this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-kinds",
                                        "name": "Kinds and varieties",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Bevel-edge woodworking chisel",
                                            "Mortise chisel",
                                            "Paring chisel",
                                            "Cold chisel for metal",
                                            "Hot chisel for heated metal",
                                            "Masonry chisel"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of chisel this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-real-world-use",
                                        "name": "Real-world use",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Cutting and fitting woodworking joints, including mortises and dovetails.",
                                            "Paring wood surfaces and trimming recesses for hinges or other fittings.",
                                            "Cutting or chipping unheated metal with a cold chisel.",
                                            "Splitting, dressing and shaping stone, brick or masonry.",
                                            "Cutting heated metal during blacksmithing."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of chisel this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-measurements",
                                        "name": "Typical measurements",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "quantity": "Cutting-edge width of common bench woodworking chisels",
                                                "typical_range": "Approximately 3-38",
                                                "unit": "mm"
                                            },
                                            {
                                                "quantity": "Primary bevel angle of common bench woodworking chisels",
                                                "typical_range": "Approximately 25-30",
                                                "unit": "degrees"
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-measurements-q01",
                                                "text": "Which of these typical measurements hold for the sense of chisel this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-failure-modes-and-hazards",
                                        "name": "Failure modes and hazards",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "A dull, chipped or rolled cutting edge increases required force and reduces control.",
                                            "An unsecured workpiece or slipping blade can cause cuts or puncture injuries.",
                                            "Metal fragments can detach from a mushroomed or damaged striking head.",
                                            "Chips and fragments from the tool or workpiece can injure eyes.",
                                            "Prying, excessive impact or use on unsuitable material can break the blade, handle or their connection."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of chisel this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-regional-variation",
                                        "name": "Regional variation",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Blade widths are commonly sold in metric sizes or fractional-inch sizes, depending on market.",
                                            "Japanese woodworking chisels commonly use laminated blades combining a hard cutting layer with a softer supporting body; many Western woodworking chisels use a single tool-steel blade."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-regional-variation-q01",
                                                "text": "Which of these regional variation hold for the sense of chisel this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-neighbours",
                                        "name": "Neighbouring kinds and how to tell them apart",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "name": "Gouge",
                                                "difference": "A gouge has a curved or channel-shaped cutting profile and is often treated as a specialized member of the chisel family."
                                            },
                                            {
                                                "name": "Punch",
                                                "difference": "A punch primarily indents, pierces or drives material or components rather than cutting with a blade edge."
                                            },
                                            {
                                                "name": "Plane",
                                                "difference": "A plane supports a cutting blade in a body that guides its angle and cutting depth across a surface."
                                            },
                                            {
                                                "name": "Wedge",
                                                "difference": "A wedge primarily separates or holds objects through its taper; a chisel has an intentionally sharpened cutting edge, although it can also split material."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of chisel this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Does the registry intend chisel to include gouges, carving chisels, surgical chisels and powered demolition bits, or do neighbouring entries own some of these forms?",
                "Which authoritative sources establish material compatibility and operating restrictions for each included chisel form?",
                "Which standards apply to the included forms, who issues them, and what conformity evidence is relevant to each?",
                "What dimensional and bevel-angle ranges are defensible for each form, with measurement conventions and sources?",
                "Which inspection criteria and repair limits reliably distinguish a maintainable chisel from one that must be withdrawn?"
            ],
            "statistics": {
                "bundles": 5,
                "layers": 9,
                "findings": 15,
                "questions": 23
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "device, machine or tool",
            "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.",
            "facetsInferred": true,
            "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.",
            "purpose": "Give an agent a durable, checkable way to recognise a chisel, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an AI agent to recognise a chisel, assess its suitability and condition for a material-removal task, and determine appropriate use or maintenance.",
            "characteristics": {
                "substance": "material",
                "origin": "manufactured",
                "agency": "inert",
                "mobility": "varies"
            },
            "whatYouCanDoWithIt": [
                "observed and measured"
            ],
            "distinguishingFeatures": [
                "Names folded into this entry, which a task may need to split apart again: pointer, brick chisel, burin, cutters with tongue-in-tip cat, moulding chisel, woodworking chisel, pitching chisel, spitsticks, fishtail, carpenter's chisel, Japanese chisel, cold chisel.",
                "27 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.",
                "Described in 80 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is."
            ],
            "openQuestionsForResearch": [
                "Which of the bundles below does a real task actually need, and which are ceremony?",
                "What does this thing have that the facets do not capture at all?",
                "Which neighbouring kind is most often confused with a chisel, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "matter you can touch",
            "physicalCharacter": [
                "Mobility varies between examples.",
                "Does nothing on its own; everything it does, something else did to it.",
                "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing."
            ],
            "whatCanBeDoneWithIt": [
                "observe it, measure it, record its state"
            ],
            "howItIsRecognised": [
                "Recognised by form, by the arrangement of its controls, and by markings - a plate, a model number, a certification mark. Form alone rarely separates two models that do very different things."
            ],
            "relatedModels": [
                {
                    "relation": "covers",
                    "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.",
                    "targets": [
                        "pointer",
                        "brick chisel",
                        "burin",
                        "cutters with tongue-in-tip cat",
                        "moulding chisel",
                        "woodworking chisel",
                        "pitching chisel",
                        "spitsticks",
                        "fishtail",
                        "carpenter's chisel",
                        "Japanese chisel",
                        "cold chisel"
                    ]
                }
            ],
            "standing": "Described in 80 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 27 finer distinctions are held inside this entry as names rather than as separate models.",
            "structure": {
                "bundles": [
                    {
                        "id": "identity-and-classification",
                        "name": "Identity, naming and classification",
                        "description": "How an agent tells one chisel from another, and a chisel from things that resemble it.",
                        "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.",
                        "layers": [
                            {
                                "id": "naming-and-identifiers",
                                "name": "Names and identifiers",
                                "description": "The names this thing goes by and the identifiers that survive translation and time.",
                                "findings": [
                                    {
                                        "id": "preferred-name-and-aliases",
                                        "name": "Preferred name, aliases and local names",
                                        "description": "Which name to use, which names mean the same thing, and which merely sound similar.",
                                        "questions": [
                                            {
                                                "id": "preferred-name-and-aliases-q01",
                                                "text": "What identifies and describes the name of a chisel, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "preferred-name-and-aliases-q02",
                                                "text": "Who or what asserted this about the name of a chisel, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "preferred-name-and-aliases-q03",
                                                "text": "What may an agent decide or do once the name of a chisel is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    },
                                    {
                                        "id": "stable-identifiers",
                                        "name": "Stable identifiers and external keys",
                                        "description": "Identifiers that keep pointing at this kind of thing across systems and languages.",
                                        "questions": [
                                            {
                                                "id": "stable-identifiers-q01",
                                                "text": "What identifies and describes an identifier for a chisel, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "stable-identifiers-q02",
                                                "text": "Who or what asserted this about an identifier for a chisel, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "stable-identifiers-q03",
                                                "text": "What may an agent decide or do once an identifier for a chisel is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "classification-and-granularity",
                                "name": "Classification and granularity",
                                "description": "Where a chisel sits among kinds, and how finely a task needs to cut it.",
                                "findings": [
                                    {
                                        "id": "kind-and-parents",
                                        "name": "Kind, parents and neighbouring kinds",
                                        "description": "The classes this thing belongs to and the ones it is next to.",
                                        "questions": [
                                            {
                                                "id": "kind-and-parents-q01",
                                                "text": "What identifies and describes the kind of a chisel, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "kind-and-parents-q02",
                                                "text": "Who or what asserted this about the kind of a chisel, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "kind-and-parents-q03",
                                                "text": "What may an agent decide or do once the kind of a chisel is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    },
                                    {
                                        "id": "distinguishing-features",
                                        "name": "Distinguishing features",
                                        "description": "What separates a chisel from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a chisel, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "distinguishing-features-q02",
                                                "text": "Who or what asserted this about what distinguishes a chisel, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "distinguishing-features-q03",
                                                "text": "What may an agent decide or do once what distinguishes a chisel is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "form-and-composition",
                        "name": "Form, composition and condition",
                        "description": "What a chisel is made of, what shape and size it takes, and what state it is in.",
                        "rationale": "A physical thing can be measured, and a model that cannot record its measurements cannot support any decision that depends on them.",
                        "layers": [
                            {
                                "id": "form-and-dimensions",
                                "name": "Form and dimensions",
                                "description": "Shape, size, mass and the ranges these take across examples.",
                                "findings": [
                                    {
                                        "id": "measurable-dimensions",
                                        "name": "Measurable dimensions and their units",
                                        "description": "The quantities worth recording and the units they are recorded in.",
                                        "questions": [
                                            {
                                                "id": "measurable-dimensions-q01",
                                                "text": "What identifies and describes the dimensions of a chisel, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "measurable-dimensions-q02",
                                                "text": "Who or what asserted this about the dimensions of a chisel, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "measurable-dimensions-q03",
                                                "text": "What may an agent decide or do once the dimensions of a chisel is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "material-and-composition",
                                "name": "Material and composition",
                                "description": "Materials, parts and how they are put together.",
                                "findings": [
                                    {
                                        "id": "parts-and-materials",
                                        "name": "Parts and materials",
                                        "description": "What a chisel is built from and which parts are replaceable.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a chisel, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "parts-and-materials-q02",
                                                "text": "Who or what asserted this about the composition of a chisel, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "parts-and-materials-q03",
                                                "text": "What may an agent decide or do once the composition of a chisel is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "condition-and-integrity",
                                "name": "Condition and integrity",
                                "description": "Wear, damage, health and the difference between working and broken.",
                                "findings": [
                                    {
                                        "id": "condition-assessment",
                                        "name": "Condition, damage and health",
                                        "description": "How the condition of a chisel is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a chisel, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "condition-assessment-q02",
                                                "text": "Who or what asserted this about the condition of a chisel, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "condition-assessment-q03",
                                                "text": "What may an agent decide or do once the condition of a chisel is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "place-and-movement",
                        "name": "Place and movement",
                        "description": "Where a chisel is, how it got there and where it may go (varies).",
                        "rationale": "A thing that can move needs its position recorded with a time, or every later claim about it is about a place it has left.",
                        "layers": [
                            {
                                "id": "location-and-placement",
                                "name": "Location and placement",
                                "description": "Position, containment and the reference frame the position is given in.",
                                "findings": [
                                    {
                                        "id": "position-and-frame",
                                        "name": "Position, container and reference frame",
                                        "description": "Where a chisel is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a chisel, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "position-and-frame-q02",
                                                "text": "Who or what asserted this about the location of a chisel, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "position-and-frame-q03",
                                                "text": "What may an agent decide or do once the location of a chisel is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "movement-and-transfer",
                                "name": "Movement and transfer",
                                "description": "How a chisel is carried, installed or relocated.",
                                "findings": [
                                    {
                                        "id": "movement-events",
                                        "name": "Movement events and constraints",
                                        "description": "What counts as a movement, what records it and what limits it.",
                                        "questions": [
                                            {
                                                "id": "movement-events-q01",
                                                "text": "What identifies and describes the movement of a chisel, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "movement-events-q02",
                                                "text": "Who or what asserted this about the movement of a chisel, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "movement-events-q03",
                                                "text": "What may an agent decide or do once the movement of a chisel is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "state-and-lifecycle",
                        "name": "State and lifecycle",
                        "description": "The states a chisel passes through and the events that move it between them.",
                        "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.",
                        "layers": [
                            {
                                "id": "lifecycle-stages",
                                "name": "Lifecycle stages",
                                "description": "From coming into existence to ceasing to be one of these.",
                                "findings": [
                                    {
                                        "id": "stages-and-transitions",
                                        "name": "Stages and transitions",
                                        "description": "The stages worth naming and what moves a chisel between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a chisel, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "stages-and-transitions-q02",
                                                "text": "Who or what asserted this about the lifecycle of a chisel, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "stages-and-transitions-q03",
                                                "text": "What may an agent decide or do once the lifecycle of a chisel is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "observations-and-status",
                                "name": "Observations and current status",
                                "description": "What is observed about a chisel, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a chisel is recorded so that it can be superseded rather than overwritten.",
                                        "questions": [
                                            {
                                                "id": "observation-record-q01",
                                                "text": "What identifies and describes an observation of a chisel, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "observation-record-q02",
                                                "text": "Who or what asserted this about an observation of a chisel, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "observation-record-q03",
                                                "text": "What may an agent decide or do once an observation of a chisel is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "function-and-principle",
                        "name": "Function and operating principle",
                        "description": "What chisel is for and how it achieves it.",
                        "rationale": "Two devices with the same name can work on different principles, and the principle is what predicts failure and constrains use.",
                        "layers": [
                            {
                                "id": "intended-function",
                                "name": "Intended function",
                                "description": "The job it does, and the jobs it is used for anyway.",
                                "findings": [
                                    {
                                        "id": "function-record",
                                        "name": "Function, principle and variants",
                                        "description": "What it does, how, and which variants do it differently.",
                                        "questions": [
                                            {
                                                "id": "function-record-q01",
                                                "text": "What function does chisel perform, on what operating principle, and which variants differ in that principle?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "function-record-q02",
                                                "text": "What use falls outside the intended function but happens in practice?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "capacity-and-rating",
                                "name": "Capacity and rating",
                                "description": "The numbers that say what it can do and where it stops.",
                                "findings": [
                                    {
                                        "id": "ratings",
                                        "name": "Ratings and their conditions",
                                        "description": "Rated capacity, power, throughput and the conditions each assumes.",
                                        "questions": [
                                            {
                                                "id": "ratings-q01",
                                                "text": "What ratings characterise chisel, in what units, and under what stated conditions?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "ratings-q02",
                                                "text": "What happens beyond the rating - degradation, refusal, damage - and how is that detected?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "operation-and-state",
                        "name": "Operation, controls and state",
                        "description": "How chisel is operated and what state it is in right now.",
                        "rationale": "An agent acting on a device needs its current state and the controls that change it, not just its specification.",
                        "layers": [
                            {
                                "id": "controls-and-modes",
                                "name": "Controls and modes",
                                "description": "What can be set, what that changes, and what is interlocked.",
                                "findings": [
                                    {
                                        "id": "control-surface",
                                        "name": "Control surface and interlocks",
                                        "description": "The settings available and the conditions that block them.",
                                        "questions": [
                                            {
                                                "id": "control-surface-q01",
                                                "text": "What controls and modes does chisel have, and what does each change?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "control-surface-q02",
                                                "text": "Which actions are interlocked or forbidden in which state, and what must be true before acting?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "condition-and-maintenance",
                                "name": "Condition and maintenance",
                                "description": "Wear, service intervals, consumables and the line between working and broken.",
                                "findings": [
                                    {
                                        "id": "service-record",
                                        "name": "Condition, service and consumables",
                                        "description": "What is consumed, what is serviced, and how condition is judged.",
                                        "questions": [
                                            {
                                                "id": "service-record-q01",
                                                "text": "What consumables and service does chisel need, at what interval, and on whose authority?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "service-record-q02",
                                                "text": "What evidence separates a unit that is working from one that is out of service?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "kind-model-unit",
                        "name": "Kind, model and unit",
                        "description": "Whether a claim about chisel is about the kind, a product line, or one physical unit.",
                        "rationale": "This is the boundary most often got wrong for made things, and getting it wrong mixes a catalogue entry with the machine in the yard.",
                        "layers": [
                            {
                                "id": "level-of-reference",
                                "name": "Level of reference",
                                "description": "The three levels and what belongs at each.",
                                "findings": [
                                    {
                                        "id": "level-rules",
                                        "name": "What belongs to kind, model and unit",
                                        "description": "Which properties are shared by all of them and which are not.",
                                        "questions": [
                                            {
                                                "id": "level-rules-q01",
                                                "text": "Which facts about chisel hold for every one of them, which for a model, and which only for one unit?",
                                                "kind": "boundary"
                                            },
                                            {
                                                "id": "level-rules-q02",
                                                "text": "What identifies an individual unit, and what should an agent do when it has only the kind?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "standards-and-conformity",
                                "name": "Standards and conformity",
                                "description": "The standards a working example must meet and who attests it.",
                                "findings": [
                                    {
                                        "id": "conformity",
                                        "name": "Standards, marks and attestation",
                                        "description": "Which standard applies, who certifies, and what the mark means.",
                                        "questions": [
                                            {
                                                "id": "conformity-q01",
                                                "text": "Which standards govern chisel, issued by whom, and what does conformity actually assert?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "id": "conformity-q02",
                                                "text": "What may an agent conclude from a certification mark, and what may it not?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a chisel came from and when it held.",
                        "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.",
                        "layers": [
                            {
                                "id": "source-and-authority",
                                "name": "Source and authority",
                                "description": "Who said it, on what evidence, and how strongly.",
                                "findings": [
                                    {
                                        "id": "claim-provenance",
                                        "name": "Claim provenance and confidence",
                                        "description": "The authority behind each claim about a chisel and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a chisel, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "claim-provenance-q02",
                                                "text": "Who or what asserted this about a claim about a chisel, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "claim-provenance-q03",
                                                "text": "What may an agent decide or do once a claim about a chisel is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "time-and-versions",
                                "name": "Time, versions and supersession",
                                "description": "When a claim was true, when it was learnt, and what replaced it.",
                                "findings": [
                                    {
                                        "id": "validity-and-supersession",
                                        "name": "Validity period and supersession",
                                        "description": "How an old claim about a chisel is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a chisel, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "validity-and-supersession-q02",
                                                "text": "Who or what asserted this about the validity of a claim about a chisel, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "validity-and-supersession-q03",
                                                "text": "What may an agent decide or do once the validity of a claim about a chisel is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "statistics": {
                "bundles": 8,
                "layers": 17,
                "findings": 19,
                "questions": 51
            }
        }
    }
}