HyThermal Skill

Hy + Thermal: Relational ACSet dynamics with Langevin temperature control

Version: 1.0.0 Trit: 0 (ERGODIC - bridges relational structure and thermal flow) Bundle: dynamics Fusion of:

hyjax-relational

+

langevin-dynamics

---

Overview

HyThermal fuses relational thinking (ACSets/C-Sets) with Langevin dynamics for temperature-controlled exploration of concept spaces. Instead of treating thread analysis as static graphs, HyThermal models concepts as particles in a thermal bath:

• Concepts = Particles with positions in embedding space
• Relations = Potential energy between particles
• Temperature = Exploration vs exploitation control
• Fokker-Planck = Equilibrium distribution of concept activations

Core Equation

dC(t) = -∇E(C(t)) dt + √(2T) dW(t)

Where:
  C = concept embedding positions
  E = relational energy (sum of edge potentials)
  T = temperature (exploration parameter)
  dW = Brownian motion (seeded via Gay.jl)

At equilibrium:

p∞(C) ∝ exp(-E(C)/T)

— Concepts cluster near low-energy (high-coherence) configurations.

Hy Syntax for Thermal ACSet

;; Define thermal schema
(defschema ThermalThread
  (Ob Thread Message Concept)
  (Hom thread_msg (-> Message Thread)
       discusses (-> Message Concept)
       related (-> Concept Concept))
  (Attr position (-> Concept R^n)
        temperature (-> Thread Float)
        energy (-> Concept Float)))

;; Langevin step in Hy
(defn thermal-step [acset dt T seed]
  (let [concepts (parts acset :Concept)
        gradient (compute-relational-gradient acset)
        noise (gay-randn seed (len concepts))]
    (for [c concepts]
      (setv (. acset [:position c])
            (+ (. acset [:position c])
               (* (- dt) (get gradient c))
               (* (sqrt (* 2 T dt)) (get noise c)))))))

;; Run to equilibrium
(defn thermal-equilibrate [acset T n-steps seed]
  (for [step (range n-steps)]
    (thermal-step acset 0.01 T (gay-split seed step)))
  acset)

Colored Thermal S-expressions

(thermal-acset-gold
  (threads-red
    (thread T-001 :temp 0.01 :energy -4.52)
    (thread T-002 :temp 0.1 :energy -2.18))
  (concepts-green
    (concept skill :pos [0.3 0.7] :trit +1)
    (concept MCP :pos [0.5 0.2] :trit 0)
    (concept thermal :pos [0.8 0.9] :trit -1))
  (relations-purple
    (edge skill MCP :weight 2 :potential -0.8)
    (edge MCP thermal :weight 1 :potential -0.3)))

Relational Energy Function

def relational_energy(acset, positions):
    """
    E(C) = Σ_edges w_ij * d(c_i, c_j)^2 - Σ_hubs hub_score(c)

    Low energy = Concepts tightly connected + high hub scores
    """
    E = 0.0
    for edge in acset.parts('related'):
        i, j = acset.src(edge), acset.tgt(edge)
        w = acset.attr(edge, 'weight')
        E += w * np.linalg.norm(positions[i] - positions[j])**2

    for c in acset.parts('Concept'):
        E -= acset.attr(c, 'hub_score')

    return E

Capabilities

1. thermal-thread-analysis

Run thermal dynamics on thread concept graph:

just hythermal-analyze threads.jsonl --temp 0.01 --steps 1000

Output:

HYTHERMAL ANALYSIS - 30 THREADS
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Temperature: 0.01
Steps: 1000
Final energy: -12.45

EQUILIBRIUM CONCEPT POSITIONS:
  skill     [0.42, 0.73] trit=+1 (hub)
  MCP       [0.38, 0.71] trit=0  (near skill)
  thermal   [0.15, 0.22] trit=-1 (isolated)

THERMAL CLUSTERS:
  Cluster 1 (T=0.01): [skill, MCP, subagent] E=-8.2
  Cluster 2 (T=0.01): [thermal, langevin]    E=-4.1

2. temperature-sweep

Explore different temperatures:

from hythermal import temperature_sweep

results = temperature_sweep(
    acset=thread_acset,
    temperatures=[0.001, 0.01, 0.1, 1.0],
    n_steps=500,
    seed=0x1069
)

for T, metrics in results.items():
    print(f"T = {T}:")
    print(f"  Final energy: {metrics['energy']:.3f}")
    print(f"  Cluster count: {metrics['n_clusters']}")
    print(f"  Mixing time: {metrics['tau_mix']:.0f}")

3. fokker-planck-concepts

Verify concept distribution reaches Gibbs equilibrium:

from hythermal import verify_concept_gibbs

verification = verify_concept_gibbs(
    acset=equilibrated_acset,
    temperature=0.01
)

print(f"KL divergence from Gibbs: {verification['kl']:.4f}")
print(f"Converged: {verification['converged']}")

4. thermal-colored-sexp

Generate colored S-expression with thermal annotations:

(defn thermal-sexp [acset]
  `(thermal-acset-gold
    (threads-red
      ~@(lfor t (parts acset :Thread)
          `(thread ~t :temp ~(. acset [:temperature t])
                      :energy ~(thread-energy acset t))))
    (concepts-green
      ~@(lfor c (parts acset :Concept)
          `(concept ~(name c)
                    :pos ~(. acset [:position c])
                    :trit ~(gay-trit (hash (name c))))))
    (relations-purple
      ~@(lfor e (parts acset :related)
          `(edge ~(src e) ~(tgt e)
                 :weight ~(. acset [:weight e])
                 :potential ~(edge-potential acset e))))))

GF(3) Thermal Triad

Trit	Skill	Thermal Role
-1	fokker-planck-analyzer	Validates equilibrium
0	hythermal	Bridges structure + dynamics
+1	entropy-sequencer	Optimizes sequences

Conservation: (-1) + (0) + (+1) = 0

Integration Points

With hyjax-relational

;; Import relational schema
(require hyjax-relational [SchThread parts attr])

;; Extend with thermal attributes
(defschema ThermalThread (extend SchThread)
  (Attr position temperature energy))

With langevin-dynamics

from langevin_dynamics import LangevinSDE, solve_langevin
from hythermal import relational_energy, relational_gradient

sde = LangevinSDE(
    loss_fn=lambda C: relational_energy(acset, C),
    gradient_fn=lambda C: relational_gradient(acset, C),
    temperature=0.01,
    base_seed=0xDEADBEEF
)

solution = solve_langevin(sde, initial_positions, time_span=(0, 10))

With gay-mcp

from gay_mcp import GayIndexedRNG

rng = GayIndexedRNG(base_seed=0x1069)

for step in range(n_steps):
    color = rng.color_at(step)
    noise = rng.randn_from_color(color)
    # Thermal noise is now auditable via color

Configuration

# hythermal.yaml
thermal:
  default_temperature: 0.01
  dt: 0.01
  n_steps: 1000

equilibration:
  verify_gibbs: true
  kl_threshold: 0.01

embedding:
  dim: 64
  method: spectral  # or random, pretrained

visualization:
  plot_trajectory: true
  animate_dynamics: false

gf3:
  seed: 0x1069
  verify_conservation: true

DuckDB Schema Extension

-- Extend thread schema with thermal columns
ALTER TABLE concepts ADD COLUMN position FLOAT[];
ALTER TABLE concepts ADD COLUMN energy FLOAT;
ALTER TABLE threads ADD COLUMN temperature FLOAT DEFAULT 0.01;

-- Thermal trajectory table
CREATE TABLE thermal_trajectory (
    step INT,
    concept_id VARCHAR,
    position FLOAT[],
    energy FLOAT,
    color_hex VARCHAR,
    trit INT
);

-- View: Equilibrium state
CREATE VIEW thermal_equilibrium AS
SELECT
    c.name,
    c.position,
    c.energy,
    c.hub_score,
    CASE WHEN c.energy < -1.0 THEN 'stable' ELSE 'metastable' END as state
FROM concepts c
WHERE EXISTS (
    SELECT 1 FROM thermal_trajectory t
    WHERE t.concept_id = c.concept_id
    AND t.step = (SELECT MAX(step) FROM thermal_trajectory)
);

Example Workflow

# 1. Load threads into thermal ACSet
just hythermal-load threads.jsonl

# 2. Initialize concept positions
just hythermal-embed --method spectral --dim 64

# 3. Run thermal dynamics
just hythermal-run --temp 0.01 --steps 1000 --seed 0x1069

# 4. Verify equilibrium
just hythermal-verify-gibbs

# 5. Generate thermal S-expression
just hythermal-sexp > thermal-analysis.sexp

# 6. Temperature sweep study
just hythermal-sweep --temps 0.001,0.01,0.1,1.0

Philosophical Frame

"what would it mean to become the Fokker-Planck equation—identity as probability flow?" — bmorphism

HyThermal extends this question to relational structures: What does it mean for a concept network to become its equilibrium distribution?

At low temperature, concepts crystallize into tight semantic clusters. At high temperature, they diffuse and mix. The "identity" of a thread is not a fixed point but a probability distribution over concept configurations — shaped by relational energy and thermal noise.

Related Skills

• hyjax-relational

  - ACSet thread analysis

• langevin-dynamics

  - SDE solver

• fokker-planck-analyzer

  - Equilibrium validation

• entropy-sequencer

  - Sequence optimization

• gay-mcp

  - Deterministic coloring

---

Skill Name: hythermal Type: Analysis + Dynamics Trit: 0 (ERGODIC) Key Property: Bridges static relational structure with dynamic thermal exploration Status: New

Scientific Skill Interleaving

This skill connects to the K-Dense-AI/claude-scientific-skills ecosystem:

Autodiff + Scientific Computing

• jax [O] via bicomodule (thermal gradient computation)
• scipy [O] via bicomodule (SDE integration)

Bibliography References

• dynamical-systems

  : 41 citations in bib.duckdb

• category-theory

  : 139 citations in bib.duckdb

SDF Interleaving

This skill connects to Software Design for Flexibility (Hanson & Sussman, 2021):

Primary Chapter: 10. Adventure Game Example

Concepts: autonomous agent, game, synthesis

GF(3) Balanced Triad

hythermal (+) + SDF.Ch10 (+) + [balancer] (+) = 0

Skill Trit: 1 (PLUS - generation)

Secondary Chapters

• Ch2: Domain-Specific Languages
• Ch1: Flexibility through Abstraction

Connection Pattern

Adventure games synthesize techniques. This skill integrates multiple patterns.

Cat# Integration

This skill maps to Cat# = Comod(P) as a bicomodule in the equipment structure:

Trit: 0 (ERGODIC)
Home: Prof
Poly Op: ⊗
Kan Role: Adj
Color: #26D826

GF(3) Naturality

The skill participates in triads satisfying:

(-1) + (0) + (+1) ≡ 0 (mod 3)

This ensures compositional coherence in the Cat# equipment structure.