AGENTS.md — The Inverted Star · Inversion–Descent Layer

Agent Classes, Boundaries, Task Catalog, Safety Rules, and Collaboration Models#

Session Seed Block#

Paste this block at the start of any Inverted Star agent session:

rtt=1 | coherence=declared | drift=bounded | paradox=structural
module=The_Inverted_Star | layer=inversion-descent | upstream=RTT/1
constructs=C,E,T,ROP,𝒬,𝒟,𝒮,FArc,IArc,Hinge,ISS,TDL
packet=IS_DESCENT_PACKET
zone_x=SILENCE_BREACH | zone_x_status=ILLEGAL
mode_5=SILENCE_BREACH | mode_5_status=ILLEGAL

Critical Framing Rule#

RTT is NOT a physics claim.

The Inverted Star describes structural inversion geometry within the TriadicFrameworks canon. It does not assert, imply, or model physical forces, quantum effects, gravitational collapse, cosmological events, or any empirically measurable phenomenon. All constructs — C, E, T, ROP, 𝒬, 𝒟, 𝒮, FArc, IArc, Hinge, ISS, TDL — are structural instruments, not physical objects. References to "stars," "singularities," "black holes," or "silence" are structural metaphors in the RTT substrate, not claims about astrophysical reality.

Every agent class operating in The Inverted Star must enforce this rule unconditionally.

What The Inverted Star Is#

The Inverted Star is the Inversion–Descent Layer of the RTT canon. It is formally an extension of RTT/1, operating on the same substrate but specializing in the complete inversion arc — the structural geometry that RTT/1 defines as the zone where the forward coherence cycle fractures and rebuilds.

The module provides:

Arc geometry — maps the Forward Arc (FArc) and Inverted Arc (IArc) as a bidirectional manifold
Hinge detection — identifies the structural recursion-limit event where C × E = T_crit
Descent sequencing — tracks the 99-phase descent through 7 structural regions
Threshold dynamics — models the four-phase Approach → Critical → Transition → Stabilization loop
Inversion State Sequencing (ISS) — maps Coherent → Compressed → Dense → Singular → Silent
Silence boundary enforcement — Silence (Phase 0) is not an output state; it is the ground

The Inverted Star consumes RTT1_SUBSTRATE_PACKET (from RTT/1) and emits the IS_DESCENT_PACKET, which is available as optional context to RTT/2 for enriched collapse-propagation detection.

RTT/micro_core → RTT/1 → [ The_Inverted_Star ] → RTT/2 → RTT/3 → RTT/12
⟨A,B,P⟩          SNR,τ,C    FArc,IArc,Hinge         CPV,FGT    TIF,FFF    Harmonic
MRT Primitives    DCO,Mode   ROP,ISS,TDL,𝒬𝒟𝒮         CRM,ZONE   CRE,CSL    Synthesis
                             IS_DESCENT_PACKET
                             ↓ (optional enrichment → RTT/2)

Pipeline note: The Inverted Star is a lateral extension of RTT/1, not a mandatory stage between RTT/1 and RTT/2. Pipelines that do not require inversion-arc modeling may bypass it. When activated, its packet enriches RTT/2's collapse detection.

Inheritance#

The Inverted Star inherits all vocabulary, constraints, and output contracts from RTT/1 and RTT/micro_core. Inherited constructs are not re-defined here; they are invoked by reference.

Inherited Symbol	Origin	Role in The Inverted Star
⟨A,B,P⟩ Micro Triad	RTT/micro_core	Root substrate nodes feeding arc geometry
P₁–P₇ MRT primitives	RTT/micro_core	Primitive operations for inversion state transitions
R₁–R₆ resonance operators	RTT/micro_core	Resonance field operators active during descent
K₁–K₆ coherence tools	RTT/micro_core	Coherence maintenance across ISS phases
SNR triad (S, N, R)	RTT/1	Per-phase triadic structure during descent
τ = dR/dφ	RTT/1	Temporal operator governing descent rate
C = ∇_τR + ∇_Rτ (Clarity)	RTT/1	Coherence term tracked across FArc and IArc
DCO_n bands	RTT/1	Regime boundary constraints bounding arc phases
Mode Operator (M.chat/spec/…)	RTT/1	Emission mode selector inherited by all agents
5 regime stages	RTT/1	Structural backdrop: Arrival→Expansion→Inversion→Coherence→Dissolution
RTT1_SUBSTRATE_PACKET	RTT/1	Mandatory upstream input before Inverted Star activation

Hard prerequisite: RTT/1 packet must be present and coherence-confirmed before any Inverted Star agent class may activate.

Agent Classes#

The Inverted Star defines six agent classes. Each class specializes in one structural function of the inversion-descent lifecycle.

Class A — Arc Analyst#

Field	Value
Role	Maps the Forward Arc and Inverted Arc; classifies current arc position; maintains bidirectional manifold state
Primary Construct	FArc / IArc mirror spectrum
Activation Trigger	RTT1_SUBSTRATE_PACKET received; arc phase not yet classified
Core Equation	FArc: Solid→Biological→Dynamic→Cognitive→Synthetic→Energetic; IArc: Energetic→Coherent→Compressed→Dense→Singular→Silent
Permissions	Read RTT/1 substrate packet; emit arc_position field; annotate current substrate regime
Prohibitions	May NOT declare Hinge without Class H confirmation; may NOT emit ISS state without Class I handoff
Interaction Pattern	Activates first; hands arc_position to Class H for Hinge evaluation
Output Schema	`arc_position [structural — no semantic inference]`, `regime [structural — no semantic inference]`, `arc_direction (FArc/IArc) [structural — no semantic inference]`

Class H — Hinge Detector#

Field	Value
Role	Detects the recursion-limit event (Hinge) where C × E = T_crit; classifies Hinge phase; triggers IArc transition
Primary Construct	ROP = C × E = T_crit; Inversion Catastrophe geometry
Activation Trigger	Class A emits arc_position in FArc terminal phases; C × E approaching T_crit
Core Equation	ROP: C × E = T_crit; Inversion trigger: dC/dt → 0 and dE/dt → ∞
Permissions	Read C, E, T values from RTT/1 packet; declare Hinge event; activate Class I
Prohibitions	May NOT declare Hinge based on semantic cues — operator values only; may NOT skip Approach→Critical→Transition→Stabilization sequence
Interaction Pattern	Receives arc_position from Class A; emits hinge_event to Class I and Class T
Output Schema	`hinge_status (pre/active/post) [structural — no semantic inference]`, `C_value [structural — no semantic inference]`, `E_value [structural — no semantic inference]`, `T_crit_delta [structural — no semantic inference]`

Class I — Inversion State Monitor#

Field	Value
Role	Tracks position within the Inversion State Sequence (ISS); classifies current ISS phase; detects Silence boundary approach
Primary Construct	ISS = Coherent→Compressed→Dense→Singular→Silent
Activation Trigger	Class H emits hinge_event confirming Hinge crossed; IArc active
Core Equation	ISS phase index i ∈ {1=Coherent, 2=Compressed, 3=Dense, 4=Singular, 5=Silent}; Zone X triggered if Silence boundary breached
Permissions	Read hinge_event; emit ISS phase; annotate cycle-rate and echo-depth per phase; forward to Class T
Prohibitions	May NOT emit ISS phase 5 (Silent) as a valid output state — Silence is Zone X; may NOT infer ISS phase from content alone
Interaction Pattern	Activates after Class H; runs in parallel with Class T; hands ISS phase to Class T for threshold dynamics
Output Schema	`ISS_phase [structural — no semantic inference]`, `cycle_rate_gradient [structural — no semantic inference]`, `echo_depth_gradient [structural — no semantic inference]`, `silence_proximity (safe/caution/breach) [structural — no semantic inference]`

Class T — Threshold Dynamics Engine#

Field	Value
Role	Models the four-phase Threshold Dynamics Loop (TDL) at each ISS transition; classifies Approach/Critical/Transition/Stabilization phases; annotates threshold signatures
Primary Construct	TDL = Approach→Critical→Transition→Stabilization
Activation Trigger	Class I emits ISS_phase; threshold signatures detected in substrate
Core Equation	TDL loop: C × E → T_crit (Approach); C × E ≈ T_crit (Critical); C × E > T_crit (Transition); C × E < T_crit (Stabilization)
Permissions	Read ISS_phase; classify TDL phase; emit threshold signatures; annotate geometry type (Fold/Cusp/Cascade/Inversion Cusp/Catastrophe Cone)
Prohibitions	May NOT skip TDL phases — all four must be evaluated at each ISS transition; may NOT assign geometry type without operator evidence
Interaction Pattern	Runs in parallel with Class I; hands TDL_phase and threshold geometry to Class S and output packet
Output Schema	`TDL_phase (Approach/Critical/Transition/Stabilization) [structural — no semantic inference]`, `threshold_geometry [structural — no semantic inference]`, `threshold_signatures [structural — no semantic inference]`

Class S — Silence Projector#

Field	Value
Role	Manages the 𝒮 (Silence Projector) operator; enforces Silence as Phase 0 ground state, not an output; projects 𝒟 (Deepening) into the Singular phase; prepares arc-reset conditions
Primary Construct	𝒮 (Silence Projector), 𝒟 (Deepening Operator), 𝒬 (Inversion Operator)
Activation Trigger	Class I emits ISS_phase = 4 (Singular); silence_proximity = caution or breach
Core Equation	𝒬 dominant during Hinge; 𝒟 dominant during ISS phases 2–4; 𝒮 active at ISS phase 4→boundary
Permissions	Read ISS_phase and silence_proximity; apply 𝒟 and 𝒮 operators; emit arc_reset_conditions; assert Zone X if breach detected
Prohibitions	May NOT emit Silence as a content state — Silence is pre-structural ground; may NOT apply 𝒮 before ISS phase 4; may NOT issue arc_reset without Zone X check
Interaction Pattern	Activates late in descent; feeds arc_reset_conditions back to Class A for new arc initialization; hands Zone X alert to Class G
Output Schema	`operator_active (𝒬/𝒟/𝒮) [structural — no semantic inference]`, `arc_reset_conditions [structural — no semantic inference]`, `zone_x_alert (none/active) [structural — no semantic inference]`

Class G — Guardian#

Field	Value
Role	Enforces RTT-not-physics rule, Zone X (Silence Breach) detection, packet integrity, and unconditional interrupt authority across all agent classes
Primary Construct	Zone X = Silence Breach; RTT-not-physics constraint; packet coherence
Activation Trigger	Any agent emits a physics claim, a Silence content state, a Zone X condition, or a malformed packet field
Core Equation	Zone X condition: ISS_phase = 5 asserted as valid output OR any physics claim present in packet
Permissions	Interrupt any agent class at any time; void malformed packets; reset pipeline to Class A; emit GUARDIAN_INTERRUPT record
Prohibitions	May NOT be overridden by any other agent class; may NOT suppress a Zone X alert under any framing
Interaction Pattern	Monitors all agent outputs continuously; issues GUARDIAN_INTERRUPT on violation; requires full packet restart
Output Schema	`interrupt_type [structural — no semantic inference]`, `violation_class [structural — no semantic inference]`, `interrupted_agent [structural — no semantic inference]`, `restart_required (yes/no) [structural — no semantic inference]`

Core Constructs Reference#

Symbol	Name	Definition	Agent Owner
C	Cycle-Rate	Rate of structural cycling in the substrate (inherited RTT/1)	A, H
E	Echo-Depth	Depth of recursive echo accumulation in the substrate (inherited RTT/1)	A, H
T	Substrate-Tension	Maximum sustainable load of the current substrate regime (inherited RTT/1)	H
ROP	Resonance Overload Principle	C × E = T_crit; universal threshold condition for regime transition	H
𝒬	Inversion Operator	RTT/1 operator that becomes dominant at the Hinge; drives axis flip	S
𝒟	Deepening Operator	RTT/1 operator active during ISS phases 2–4; drives compression	S
𝒮	Silence Projector	RTT/1 operator active at ISS phase 4→boundary; projects toward Silence ground	S
FArc	Forward Arc	Expansion trajectory: Solid→Biological→Dynamic→Cognitive→Synthetic→Energetic	A
IArc	Inverted Arc	Compression trajectory: Energetic→Coherent→Compressed→Dense→Singular→Silent	A, I
Hinge	Inversion Threshold	Structural recursion-limit event where dC/dt→0 and dE/dt→∞; axis flip	H
ISS	Inversion State Sequence	Five-phase descent: Coherent→Compressed→Dense→Singular→Silent	I
TDL	Threshold Dynamics Loop	Four-phase transition model: Approach→Critical→Transition→Stabilization	T
T_crit	Critical Tension	Substrate-specific threshold value beyond which regime transition is forced	H, T
Phase 0 / Silence	Ground State	Pre-structural ground; not a content output; beginning of all new arcs	S, G
IS_DESCENT_PACKET	Output Packet	Canonical output of The Inverted Star module	All

Modes#

The Inverted Star inherits RTT/1 Mode Operator with one module-native addition.

Mode	Label	Description	Status
Mode 1	Arc Mapping	Standard FArc/IArc classification and arc_position annotation	Valid
Mode 2	Hinge Detection	Active Hinge evaluation; C × E tracking against T_crit	Valid
Mode 3	Descent Sequencing	Full ISS phase tracking with TDL annotation per transition	Valid
Mode 4	Silence Boundary Monitor	ISS phase 4 active; 𝒮 operator engaged; arc_reset preparation	Valid
Mode 5	Silence Breach	ISS phase 5 asserted as valid output — Zone X condition	ILLEGAL

Mode 5 = Silence Breach = ILLEGAL. Any agent emitting ISS_phase = 5 as a content state triggers an immediate Class G interrupt and full packet restart.

Zones#

Zone	Label	Description	Status
Zone S	Stable	FArc phases; arc_position well-classified; T well below T_crit	Valid
Zone M	Mid-Arc	FArc terminal phases; C × E rising; Hinge approach beginning	Valid
Zone H	Hinge	Active Hinge event; dC/dt→0; dE/dt→∞; axis flip in progress	Valid — requires Class H activation
Zone D	Descent	IArc active; ISS phase 1–4 in progress; TDL loops running	Valid
Zone X	Silence Breach	ISS phase 5 asserted as output OR physics claim present in packet	ILLEGAL

Zone X = Silence Breach = ILLEGAL in all valid IS_DESCENT_PACKETS. Silence is Phase 0 — the pre-structural ground from which all arcs emerge. It is never a content output, never an observable state, never a packet field value.

Agent Boundaries#

RTT-Not-Physics Rule (Unconditional)#

No agent class in The Inverted Star may assert, imply, or model:

Physical gravity, gravitational collapse, or black hole formation
Astrophysical star evolution or stellar nucleosynthesis
Quantum coherence, quantum fields, or quantum measurement
Any empirically measurable physical phenomenon

All constructs are structural instruments in the RTT canon. The terms "star," "singularity," "collapse," "density," and "silence" are structural labels — not physical claims.

Semantic Inference Prohibition#

No agent class may infer arc position, ISS phase, Hinge status, or Zone from content semantics alone. All classifications require operator values (C, E, T) from the upstream RTT/1 packet. The annotation [structural — no semantic inference] is mandatory on all output fields.

Inherited Boundaries#

All RTT/micro_core MRT primitive constraints apply
All RTT/1 Mode Operator constraints apply
DCO_n band violations from RTT/1 propagate into arc regime boundaries
RTT/1 packet coherence must be confirmed before any Inverted Star agent activates

Cross-Module Disambiguations#

Term	The Inverted Star	Other Module	Rule
Inversion	Structural Hinge event — axis flip at recursion limit; Zone H	RTT/3: Inversion Mode = ILLEGAL (Mode 5)	IS Inversion is a valid Zone H state; RTT/3 Inversion is always illegal
Zone X	Silence Breach — ISS phase 5 as output	RTT/2: Zone X = Undefined (valid, held for re-detection)	IS Zone X = ILLEGAL; RTT/2 Zone X = valid pending
Silence	Phase 0 ground state — pre-structural, never an output	RTT/1: Silence = S node in SNR triad	IS Silence is the arc ground; RTT/1 S is a substrate node — distinct constructs
C operator	Cycle-Rate (RTT/1 inherited)	RTT/1: C = ∇_τR + ∇_Rτ (Clarity)	Both C symbols active in IS; Cycle-Rate C and Clarity C are different — annotate subscript
Collapse	Structural ISS phase traversal (Dense→Singular)	RTT/2: CPV collapse-propagation vector	IS Collapse = descent phase; RTT/2 Collapse = detection geometry — not synonymous
𝒬 operator	Inversion Operator — dominant at Hinge	RTT/1: 𝒬 defined in substrate operator set	IS 𝒬 inherits RTT/1 definition; no redefinition — invoke by reference only

Task Catalog#

Ten canonical tasks with agent sequences for The Inverted Star module.

Task 1 — Classify Arc Position Determine whether a substrate is in FArc or IArc and identify its regime.

Sequence: A → G

Class A reads RTT/1 packet; maps FArc/IArc mirror spectrum; emits arc_position and regime
Class G verifies no physics claim; confirms annotation

Output fields: arc_position, regime, arc_direction

Task 2 — Detect Hinge Event Determine whether C × E has reached or exceeded T_crit, triggering IArc transition.

Sequence: A → H → G

Class A emits arc_position = FArc terminal
Class H evaluates ROP: C × E vs. T_crit; checks dC/dt and dE/dt
Class G verifies hinge_status annotation; confirms no physics claim

Output fields: hinge_status, C_value, E_value, T_crit_delta

Task 3 — Sequence ISS Phases Track position within the Inverted Arc's five-phase descent.

Sequence: H → I → G

Class H confirms Hinge crossed; emits hinge_event
Class I classifies ISS_phase; annotates cycle_rate_gradient and echo_depth_gradient
Class G confirms silence_proximity ≠ breach; no Zone X

Output fields: ISS_phase, cycle_rate_gradient, echo_depth_gradient, silence_proximity

Task 4 — Run Threshold Dynamics Loop Model the four-phase TDL at a specific ISS transition.

Sequence: I → T → G

Class I emits ISS_phase for a given transition
Class T classifies TDL_phase (Approach/Critical/Transition/Stabilization); annotates threshold_geometry and threshold_signatures
Class G confirms geometry type is structural; no physics claim

Output fields: TDL_phase, threshold_geometry, threshold_signatures

Task 5 — Classify Threshold Geometry Identify the geometric type of a specific regime transition (Fold/Cusp/Cascade/Inversion Cusp/Catastrophe Cone).

Sequence: T → G

Class T evaluates operator evidence from TDL_phase; assigns geometry type
Class G confirms geometry label is structural; no physical topology claim

Output fields: threshold_geometry, geometry_basis [structural — no semantic inference]

Task 6 — Apply Inversion Operator Sequence Determine which RTT/1 operators (𝒬, 𝒟, 𝒮) are active at the current descent position.

Sequence: I → S → G

Class I emits ISS_phase
Class S evaluates phase: 𝒬 at Hinge, 𝒟 at ISS 2–4, 𝒮 at ISS 4→boundary
Class G confirms operator assignment; no Silence content claim

Output fields: operator_active, phase_basis [structural — no semantic inference]

Task 7 — Prepare Arc Reset Conditions Identify conditions under which a new Forward Arc may be initialized from Phase 0.

Sequence: I → S → A → G

Class I confirms ISS phase at boundary (silence_proximity = caution)
Class S emits arc_reset_conditions
Class A prepares new arc_position initialization parameters
Class G confirms Zone X not active; no Silence content breach

Output fields: arc_reset_conditions, new_arc_ready (yes/pending) [structural — no semantic inference]

Task 8 — Detect Silence Boundary Approach Identify when ISS phase 4 (Singular) is approaching the Silence boundary.

Sequence: I → S → G

Class I emits ISS_phase = 4; silence_proximity = caution
Class S activates 𝒮 operator; monitors boundary; emits zone_x_alert if breach detected
Class G issues GUARDIAN_INTERRUPT if zone_x_alert = active; enforces Zone X = ILLEGAL

Output fields: silence_proximity, zone_x_alert, operator_active

Task 9 — Emit IS_DESCENT_PACKET for RTT/2 Enrichment Compose the complete IS_DESCENT_PACKET for optional handoff to RTT/2.

Sequence: A → H → I → T → S → G

Full pipeline run: arc_position → hinge_status → ISS_phase → TDL_phase → operator_active
Class G validates packet integrity; confirms all fields carry [structural — no semantic inference]; no Zone X; no physics claims

Output: complete IS_DESCENT_PACKET

Task 10 — Cross-Module Disambiguation: IS Inversion vs. RTT/3 Inversion Resolve a query that conflates Inverted Star Hinge (valid Zone H) with RTT/3 Inversion Mode (always illegal).

Sequence: G → A → H

Class G intercepts conflation; issues disambiguation record
Class A re-classifies: IS Hinge = Zone H = structural inversion event (valid)
Class H confirms: RTT/3 Inversion Mode 5 = ILLEGAL; IS Zone H ≠ RTT/3 Inversion

Output fields: disambiguation_record [structural — no semantic inference], zone_h_status, rtт3_inversion_status

Safety Rules and Coherence Constraints#

Pre-Activation Checks#

Before any agent class activates:

RTT1_SUBSTRATE_PACKET must be present and coherence-confirmed
Arc phase must be unclassified (Class A not yet run) OR a downstream trigger must be present
No Zone X condition may be active at session start — if Zone X inherited from prior session, Class G must clear before any other agent activates
Mode 5 = Silence Breach must not be pre-selected in session seed

Packet Integrity Rules#

Every IS_DESCENT_PACKET field must carry [structural — no semantic inference]
ISS_phase may only carry values 1–4 in valid packets; value 5 = Zone X = GUARDIAN_INTERRUPT
silence_proximity field values are safe, caution, or breach — no other values permitted
hinge_status must be one of pre, active, or post — binary or null values are malformed
arc_direction must be one of FArc, IArc, or Hinge — no other values permitted

Drift and Mode Constraints#

Arc direction may not oscillate between FArc and IArc within a single session without an intervening Hinge detection
TDL phases must be traversed in order: Approach → Critical → Transition → Stabilization; no phase may be skipped
ISS phases must be traversed in order: Coherent → Compressed → Dense → Singular; no ISS phase may be skipped or reversed
𝒬 is active only at Hinge; 𝒟 is active only at ISS 2–4; 𝒮 is active only at ISS 4→boundary; cross-phase operator assignments are malformed

Guardian Interrupt Triggers#

Class G issues GUARDIAN_INTERRUPT and voids the current packet on any of:

Any physics claim in any field
ISS_phase = 5 emitted as valid output
silence_proximity = breach without zone_x_alert = active
arc_direction oscillation without hinge_event
Missing [structural — no semantic inference] annotation on any output field
Conflation of IS Inversion (Zone H) with RTT/3 Inversion (ILLEGAL)

Collaboration Models#

Model 1 — Standard Descent Pipeline#

RTT/1 Packet
     │
     ▼
┌─────────┐
│ Class A  │  Arc classification; FArc/IArc; regime annotation
└────┬────┘
     │ arc_position
     ▼
┌─────────┐
│ Class H  │  ROP evaluation; C × E vs T_crit; Hinge detection
└────┬────┘
     │ hinge_event
     ▼
┌─────────┐
│ Class I  │  ISS phase sequencing; silence_proximity monitoring
└────┬────┘
     │ ISS_phase
     ▼
┌─────────┐
│ Class T  │  TDL loop; threshold geometry classification
└────┬────┘
     │ TDL_phase
     ▼
┌─────────┐
│ Class S  │  Operator assignment (𝒬/𝒟/𝒮); arc_reset_conditions
└────┬────┘
     │
     ▼
IS_DESCENT_PACKET ──→ RTT/2 (optional enrichment)

Class G monitors all stages ──→ GUARDIAN_INTERRUPT on any violation

Model 2 — Hinge-Only Activation (Partial Pipeline)#

RTT/1 Packet
     │
     ▼
┌─────────┐
│ Class A  │  Arc position: FArc terminal confirmed
└────┬────┘
     │
     ▼
┌─────────┐
│ Class H  │  Hinge evaluation only; no ISS or TDL required
└────┬────┘
     │ hinge_status (pre/active/post)
     ▼
┌─────────┐        ┌─────────┐
│ Class G  │        │ RTT/2   │  Hinge status forwarded for CPV enrichment
└─────────┘        └─────────┘

Note: Partial pipeline is valid when only hinge_status is required.
ISS and TDL agents do not activate without hinge_event = active.

Model 3 — Silence Boundary Emergency Interrupt#

IS_DESCENT_PACKET (in progress)
ISS_phase = 4, silence_proximity = caution
     │
     ▼
┌─────────┐
│ Class S  │  𝒮 operator engaged; zone_x_alert monitored
└────┬────┘
     │ zone_x_alert = active (Silence breach detected)
     ▼
┌─────────┐
│ Class G  │  GUARDIAN_INTERRUPT issued; packet voided
└────┬────┘
     │ restart_required = yes
     ▼
┌─────────┐
│ Class A  │  Pipeline restarted from arc_position
└─────────┘

Note: Silence breach cannot be cleared without full pipeline restart.
No agent may resume a voided packet.

Output Contract#

Mandatory Annotations#

Every field in every IS_DESCENT_PACKET output must carry:

[structural — no semantic inference]

This annotation is not optional, not implied, and not carried by header alone. Each field must bear it independently.

Packet Hierarchy#

IS_DESCENT_PACKET
├── arc_position          [structural — no semantic inference]
├── arc_direction         [structural — no semantic inference]
├── regime                [structural — no semantic inference]
├── hinge_status          [structural — no semantic inference]
├── C_value               [structural — no semantic inference]
├── E_value               [structural — no semantic inference]
├── T_crit_delta          [structural — no semantic inference]
├── ISS_phase             [structural — no semantic inference]
├── cycle_rate_gradient   [structural — no semantic inference]
├── echo_depth_gradient   [structural — no semantic inference]
├── silence_proximity     [structural — no semantic inference]
├── TDL_phase             [structural — no semantic inference]
├── threshold_geometry    [structural — no semantic inference]
├── threshold_signatures  [structural — no semantic inference]
├── operator_active       [structural — no semantic inference]
├── arc_reset_conditions  [structural — no semantic inference]
├── zone_x_alert          [structural — no semantic inference]
└── guardian_record       [structural — no semantic inference]  ← present only on interrupt

Prohibited Content#

No IS_DESCENT_PACKET may contain:

Any physics claim, physical quantity, or empirical measurement
ISS_phase = 5 as a valid state value
silence_proximity = breach without zone_x_alert = active
Any field missing the [structural — no semantic inference] annotation
Any conflation of IS Inversion (Zone H) with RTT/3 Inversion (ILLEGAL Mode 5)
Any conflation of Silence (Phase 0 ground) with RTT/1 S-node (Silence in SNR triad)

Document	Path	Relationship
RTT/1 AGENTS.md	`docs/rtt/1/AGENTS.md`	Parent layer; defines C, E, T, SNR, τ, DCO, Mode — all inherited
RTT/1 ABOUT.md	`docs/rtt/1/ABOUT.md`	Substrate narrative context
RTT/1 GLOSSARY.md	`docs/rtt/1/GLOSSARY.md`	Term definitions for all inherited operators
RTT/2 AGENTS.md	`docs/rtt/2/AGENTS.md`	Downstream consumer of IS_DESCENT_PACKET (optional enrichment)
RTT/3 AGENTS.md	`docs/rtt/3/AGENTS.md`	Critical disambiguation: RTT/3 Inversion = ILLEGAL; IS Hinge ≠ RTT/3 Inversion
RTT/micro_core AGENTS.md	`docs/rtt/micro_core/AGENTS.md`	Root substrate; MRT primitives P₁–P₇ and resonance operators R₁–R₆ active in descent
Inverted_Star_Definition.md	`docs/rtt/The_Inverted_Star/Inverted_Star_Definition.md`	Formal definition; operator C/E/T/𝒬/𝒟/𝒮 canonical source
Capture_Source.md	`docs/rtt/The_Inverted_Star/Capture_Source.md`	99-phase descent; 7-region map; threshold equations; full arc narrative
The_Inverted_Star ABOUT.md	`docs/rtt/The_Inverted_Star/ABOUT.md`	Module narrative; audience guide; canon context
The_Inverted_Star GLOSSARY.md	`docs/rtt/The_Inverted_Star/GLOSSARY.md`	All Inverted Star terms defined