On-Screen Slot Readback / 上屏槽位回读线

On-Screen Slot Readback is the storyline for the final broadcast moment when a schedule contract stops being future debt and becomes city-recognized reality.

上屏仪式 already defines the broad validation order: mirror right, protection level, slot completeness, narrative credibility, cost payment, and route tag. Nearby packets bind slot authority, prevent wrong mirror-right overreach, preserve prep receipts, and check live-floor coverage. This storyline fills the remaining final-air gap: every filled ritual slot must be read back as a concrete row before the route tag hardens.

Playable question

At premiere, does the producer certify the assembled slots, narrow a slot’s scope, substitute a bad slot, split the route tag, attach a sacrifice cost, delay or fold the broadcast, or let false slot closure harden?

The answer must name:

• the source schedule contract or explicit absence;
• the intended final broadcast version;
• each meaningful slot row;
• the assigned card, character, scene, proof, sacrifice, or ending;
• the validation state for that slot;
• the route tag being claimed;
• the harmed reader if the slot is overcredited;
• the future reader or route that consumes the ritual state.

Gap diagnosis

The current corpus already covers several adjacent moments:

• Broadcast Slot Contract Binding asks whether the broadcast slot authority can be spent by a reader.
• Mirror Right Boundary Audit asks whether the granted right family matches the requested operation.
• Prep Action Receipt Carryover asks whether prep output can be cited later.
• Live Floor Crew Load asks whether the floor can staff the airing.
• Broadcast Reality Drift Audit repairs contradictions after aired reality splits.

The uncovered seam is the last compositional readback. A route can have legal slot authority, a correct mirror right, a valid prep receipt, and enough crew, while still turning a missing sacrifice, wrong object slot, hidden proof gap, or incompatible ending into a clean route tag. This storyline prevents aired_successfully from erasing slot-level scars.

State-triggered entry

Open this storyline only when final-air pressure exists:

entry_state_required:
  trigger_kind: state_pressure
  final_broadcast_or_reverse_airing_ready: true
  source_schedule_contract_present_or_explicit_absence: true
  intended_final_version_visible: true
  slot_rows_visible: true
  claimed_route_tag_visible: true
  at_least_one_slot_validation_contested_or_costed: true
  future_reader_consumes_ritual_state: true
  player_can_certify_narrow_substitute_split_attach_delay_or_default: true
  no_fixed_turn_trigger: true
  no_fixed_day_or_week_trigger: true
  no_raw_slot_count_trigger: true
  no_dashboard_or_lens_health_trigger: true

The premiere date, D-0, or broadcast countdown may appear as provenance. It cannot be the canonical trigger. Valid entry is a final-air version whose slot rows can change future play.

Bound content pack

• 上屏仪式 defines standard slots and validation order.
• 上屏槽位回读账本 records source contract, final version, slot rows, claimed route tag, validation state, and future reader.
• 上屏仪式回读 resolves certify, narrow, substitute, split, attach cost, delay/fold, or default branches.
• 虚假槽位闭合默认 fires or arms when a route tag hardens while a required slot is hidden, invalid, incompatible, unpaid, or falsely universal.
• On-Screen Slot Readback Lens observes the implementation contract.

Storyline spine

Beat 1 - Final version enters readback

A schedule contract, correction, memorial air, public testimony, route debut, blackout counterbroadcast, or reverse airing is ready to become recognized city reality.

Create or refresh On-Screen Slot Readback Ledger. It must not be a generic success receipt. It is the slot table for the intended final version.

Beat 2 - Slot rows expose the composition

Each relevant row names slot kind, assigned object, required right or proof, reader scope, validation state, missing or incompatible input, and future effect.

Valid slot kinds include:

• lead_slot
• object_slot
• scene_slot
• narrative_slot
• material_slot
• sacrifice_slot
• ending_slot
• reverse_air_slot
• blackout_slot
• equivalent custom slot

Beat 3 - Readback prices final closure

Run On-Screen Ritual Readback. The player chooses whether the route can close as claimed, needs a narrower result, needs replacement, splits route tags, attaches cost, delays/folds, or defaults.

Beat 4 - Route tag hardens with scars

The route tag after readback must be visible: company, intimacy, liquidation, resistance, chaos, public-only, lawful-only, sponsor-captured, blackout-folded, reverse-aired, recovery-only, or equivalent.

The branch must also leave at least one future route or reader effect. A route tag is not a sticker; it is a future reader state.

Beat 5 - False closure becomes durable

If the slot table is hidden or overcredited, False Slot Closure Default fires or remains armed. It records the false closure claim, hidden or invalid slot, captured route tag, harmed reader, ritual state after, and future reader effect.

Branch map

Branch	Immediate relief	Cost/scar	Future state
Certify slot package	broadcast closes inside named slot table	proof, schedule, reader, or sacrifice cost rises	certified_with_scope
Narrow slot scope	false universal route tag is blocked	route becomes public-only, lawful-only, sponsor-only, or costlier	narrowed_route_tag
Substitute slot	missing or invalid row is replaced	substitute debt, trust loss, proof burden, or route delay	substituted_with_scar
Split route tag	incompatible rows both remain legible	source ambiguity, correction cost, handler burden	split_route_tag
Attach sacrifice cost	unpaid closure becomes priced	trauma, oxygen, money, body, relationship, or future debt rises	paid_with_scar
Delay or fold	false finality is blocked	schedule pressure, blackout risk, sponsor/public pressure	delayed, folded, or recovery-only
False slot closure default	fast route closure may proceed	captured tag, hostile future reader, drift, blackout scar	false_closure, captured, blocked, recovery-only

Integration notes

• With Broadcast Slot Contract Binding, a scoped slot authority still needs final slot-row readback before route tag closure.
• With Mirror Right Boundary Audit, a right-family fix can satisfy an operation but cannot fill an object, sacrifice, or ending slot by itself.
• With Prep Action Receipt Carryover, a valid prep receipt can occupy a row only inside its scope.
• With Live Floor Crew Load, staffed coverage can validate floor execution but cannot make a missing narrative or sacrifice slot true.
• With Ending Scar Ledger, false closure scars can later block clean endings.
• With Route Tag Momentum Collision, a route tag that passed one final-air readback can still collide with scarred tags from other broadcasts when a future route consumes accumulated momentum.

Missability and recovery

This storyline is missed when implementation:

• stores only broadcast_complete, aired_successfully, route_tag, or ending_unlocked;
• lets one filled slot satisfy lead, object, scene, material, sacrifice, and ending requirements;
• claims a route tag while hiding a missing, incompatible, unpaid, or overbroad slot;
• treats a sponsor payment, public cheer, lawful seal, rehearsal mark, or edit patch as universal slot closure;
• creates no harmed reader, future route effect, or durable scar.

Recovery requires visible scar: late slot readback, route tag narrowing, substitute slot, public correction, lawful addendum, sacrifice cost, delayed airing, blackout fold, or recovery-only route.

Replay evidence expectation

storyline_id: storyteller.storyline.on_screen_slot_readback.v1
session_id: lens-on-screen-slot-readback-v1-<timestamp>
seed: <deterministic-seed>
entry_state:
  trigger_kind: state_pressure
  final_broadcast_or_reverse_airing_ready: true
  source_schedule_contract_present_or_explicit_absence: true
  intended_final_version_visible: true
  slot_rows_visible: true
  future_reader_consumes_ritual_state: true
offered:
  card: storyteller.card.on_screen_slot_readback_ledger.v1
  rite: storyteller.rite.on_screen_ritual_readback.v1
branch_result:
  selected_posture: certify_slot_package | narrow_slot_scope | substitute_slot | split_route_tag | attach_sacrifice_cost | delay_or_fold | false_slot_closure_default
  ritual_state_after: <state>
  route_tag_after: <tag>
  future_reader_effect: <effect>
  event_seen_or_armed: storyteller.event.false_slot_closure_default.v1 | none
  counter_deltas:
    relief: []
    cost: []
    future: []

Non-goals

• Not a replacement for slot contract authority.
• Not a mirror-right audit duplicate.
• Not a rehearsal contamination lens.
• Not a generic UI checklist.
• Not valid if a final broadcast closes without observable slot rows.