kuroko
Enable an agent to recognise a kuroko stage-assistance role, assess readiness for a particular performance and determine which supporting actions are appropriate.
Bundle → Layer → Finding → Questions Filled
6 bundles · 11 layers · 15 findings · 25 questions
Role and convention Establishes the theatrical meaning of the registered term and its boundaries.
Term and context
Connects the registry label to a documented theatrical usage.
Kabuki role anchor
The Japan Arts Council describes kurogo as black-covered koken who assist actors onstage. This supports the provisional theatrical interpretation. [Japan Arts Council](https://www2.ntj.jac.go.jp/unesco/kabuki/en/production/performance7.html)
- What registry provenance confirms that kuroko denotes this theatrical role? provenance
- Which local term and theatrical tradition identify the assignment? definition
Dramatic status
Separates visible physical presence from participation as a character.
Conventional invisibility
Kabuki treats black as conventionally invisible, allowing assistance without treating the assistant as a dramatic character. [Japan Arts Council](https://www2.ntj.jac.go.jp/dglib/modules/kabuki_dic_en/entry.php?entryid=1111)
- Is the assistant conventionally unacknowledged in this scene? boundary
- Does the production deliberately acknowledge the assistant, and how is that departure documented? provenance
Appearance and discretion Records how the assistant's appearance and movement fit the scene.
Scene costume
Relates the assistant's covering to the scenic environment.
Covering and variants
The documented black costume covers the body and conceals the face; snow and water scenes may use white or blue alternatives. Their inclusion under this registry entry needs confirmation. [Japan Arts Council](https://www2.ntj.jac.go.jp/unesco/kabuki/en/production/performance7.html)
- Which covering is specified for this scene, and by whom? provenance
- Does the local terminology treat this scene-specific alternative as kuroko or as a neighbouring role designation? boundary
Movement and position
Captures the assistant's planned route, waiting positions and exposure to audience attention.
Discreet assistance
The documented practice includes quiet movement and positioning behind actors or scenery to minimise prominence. The model should record the production's own acceptance criteria. [Japan Arts Council](https://www2.ntj.jac.go.jp/unesco/kabuki/en/production/performance7.html)
- Where should the assistant wait, move and withdraw during each intervention? action
- What rehearsal observations show that movement avoids distracting attention or obstructing the performer? measurement
Props and costume assistance Defines the concrete interventions assigned to the role.
Prop interventions
Maps objects to their required placement, availability and removal.
Prop placement and clearance
Preparing and removing props are documented duties. Record each assigned object's destination and scene dependency. [Japan Arts Council](https://www2.ntj.jac.go.jp/dglib/modules/kabuki_dic_en/entry.php?entryid=1111)
- Which props must this assistant place or remove, and at which scene events? action
- What placement or clearance condition must be satisfied before the performer's next movement? measurement
Costume interventions
Specifies the assistant's contribution to a performer's onstage costume change.
Assigned costume change
Onstage costume assistance is documented, but the precise procedure must come from the production rather than a generic assumption about the role. [Japan Arts Council](https://www2.ntj.jac.go.jp/dglib/modules/kabuki_dic_en/entry.php?entryid=1111)
- Which costume components may the assistant handle, and in what rehearsed sequence? action
- Which performer movement or cue permits the change to begin? action
Performer coordination Connects the assistance assignment to performers, cues and recovery decisions.
Support relationship
Identifies the supported performer and the assignment's supervision.
Performer-specific support
The Japan Arts Council notes that actors' pupils commonly provide assistance in coordination with their acting; this does not establish a universal employment or qualification requirement. [Japan Arts Council](https://www2.ntj.jac.go.jp/dglib/modules/kabuki_dic_en/entry.php?entryid=1111)
- Which performer does the role holder support in each scene? definition
- Who confirms the assistance arrangement and supervises unfamiliar tasks? provenance
Cue and recovery
Records when to intervene and what to do when the expected sequence changes.
Intervention decision
As a proposed modelling requirement, each intervention should include its trigger, prerequisites and agreed response to a missed cue or unavailable prop.
- What observable cue and prerequisites authorise the intervention? action
- If timing changes or the prop is unavailable, should the assistant wait, withdraw or follow another agreed response? action
Competence and readiness Assesses whether a particular holder can perform the specified assistance.
Rehearsal evidence
Links scene-specific competence to observed practice.
Demonstrated assistance
The proposed model records evidence of cue recognition, discreet movement, accurate prop placement and assigned costume handling without inventing a standard credential.
- Which assigned sequences has the holder successfully rehearsed with the supported performer? measurement
- Who assessed readiness, and which observed difficulties remain unresolved? provenance
Scene readiness
Checks whether current conditions permit the rehearsed assistance.
Conditions for participation
Readiness should be tied to the actual covering, route, props, costume mechanism and performer arrangement; changes may require renewed rehearsal or supervision.
- Can the holder execute the assigned movements with the current covering, sightlines and stage access? measurement
- Which changes or unresolved conditions require reassessment before participation? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these check these first hold for the sense of kuroko this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these real-world use hold for the sense of kuroko this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these failure modes and hazards hold for the sense of kuroko this model covers, and on what evidence? provenance
Regional variation
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these regional variation hold for the sense of kuroko this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of kuroko this model covers, and on what evidence? provenance
Classifiers Filled
- Family
- Thing Registry
- Category
- Society, people and institutions
- Entry kind
- thing
- Plane
- SOC
- Domain
- SOC.PER
What it is Filled
A kuroko is a stage assistant in Japanese theatre, especially kabuki, who conventionally wears concealing black clothing and performs visible stage work while the audience treats the assistant as absent from the dramatic action.
In scope
- Recognition of the kuroko role within a specified theatrical tradition and production
- Conventional invisibility and scene-appropriate appearance
- Assigned prop handling and onstage costume assistance
- Coordination with supported performers and performance cues
- Role-specific competence, supervision and readiness
Out of scope
- The role holder's personal identity, biography and employment contract
- The theatre company's organisation and governance
- The complete kabuki production, script and dramatic characters
- Manufacture and conservation of costumes, props and stage equipment
- Puppetry roles, fictional characters and metaphorical uses of kuroko unless registry evidence establishes their inclusion
Why it exists Filled
Enable an agent to recognise a kuroko stage-assistance role, assess readiness for a particular performance and determine which supporting actions are appropriate.
Distinguishing features Filled
- The assignment supports performers onstage rather than merely performing unspecified backstage work.
- The assistant is physically visible but conventionally excluded from the dramatic action; conventional invisibility is not literal concealment.
- Black covering identifies the core kabuki form, but costume alone does not establish that its wearer holds this role.
- Kurogo is a particular form of koken stage assistance; the broader koken category must not automatically be treated as equivalent.
- A person may hold this assignment while having other responsibilities; the assignment does not establish that person's entire occupation.
What robots and AI may and may not do Filled
Must not
- Confuse the stage role with ninja or other popular stereotypes without saying so.
- Record or broadcast performances without the theatre's permission.
- Belittle the skill of stage assistants.
- Misattribute theatre conventions to the wrong tradition.
Only with a human decision
- Using images of performers in commercial material.
May
- Explain the role and conventions of kuroko in kabuki and other Japanese theatre, citing sources.
- Describe how audiences treat them as unseen.
Moral aspects Filled
- Backstage workers' skill often goes unrecognized.
- Theatre traditions deserve accurate cultural description.
Who is affected
- Stage assistants
- Theatre companies
Owners Filled
Steward
Nobody owns the role; theatre companies employ the assistants.
Links to other meta-models Filled
parent
- Q2328828 - registry parent class
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.kuroko
- Wikidata: Q977241 (https://www.wikidata.org/wiki/Q977241)
Direct properties not applicable Not applicable
- Theatrical context: Tradition, company, production and scene
- Local role designation: Recorded term and script, with a supported mapping to kuroko or kurogo
- Dramatic recognition: Conventionally unacknowledged assistant; deliberately acknowledged intervention; unresolved
- Scene appearance: Black covering; documented scene-specific alternative; unresolved
- Supported performer: Performer or performers supported in each scene
- Assistance assignment: Prop placement; prop removal; costume assistance; other explicitly documented assistance
- Cue dependency: Action linked to performer movement, production cue or scene event
- Assignment readiness: Unassessed; rehearsing; ready for specified scene; blocked; reassessment required
Plane SOC: no invented physical properties.
Recognition optional Filled
- Concealing black clothing commonly includes a hood or face covering that suppresses individual facial visibility.
- The person performs supporting tasks around actors and props rather than presenting a character within the scene.
- Identification depends on performance context because black clothing alone also occurs among other theatre workers.
Capabilities and actions required Filled
- Classify a documented assignment as kuroko, broader koken assistance or an unresolved neighbouring role.
- Map performer needs to specific prop and costume interventions.
- Check appearance, movement routes and cue dependencies against the scene.
- Identify missing rehearsal evidence or supervision before assigning assistance.
- Flag conflicts between planned assistance, performer movement and conventional invisibility.
Hazards and failure modes required Filled
- Restricted visibility and movement around scenery can contribute to collisions, trips or falls.
- Moving props or scenery can cause crush injuries or damage when stage activity is poorly coordinated.
- Mistimed assistance can distract performers, disrupt dramatic action or leave a performer without expected support.
Standards and interfaces not applicable Not applicable
Not applicable
No universal role-specific technical standard or official classification defines kuroko performance conventions.
Context of use required Filled
- Kuroko appear in traditional Japanese theatre, especially kabuki, to support the performance through visible stage assistance.
- Their work can include moving props and assisting costume changes under a theatrical convention that excludes them from the dramatic action.
Sources Filled
- Wikidata item Q977241: kuroko - identity and sense of the item
- Wikipedia: Kuroko - general description of the item
Open questions
- Does the originating registry record identify kabuki stage assistance specifically, broader theatrical usage or a metaphorical supporting role?
- How should kuroko, kurogo and their Japanese written forms be mapped without assuming that terminology is interchangeable in every context?
- Should white- and blue-clad scene variants be represented within this entry or linked as neighbouring designations?
- Which companies or training institutions document competence expectations, and do any applicable jurisdictions impose formal qualifications or licensing?
- Does an existing Vercy world model already cover this role, and what supported occupational classification mapping, if any, avoids reducing it to generic stagehand work?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q977241/spec.json