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Cutaneous Cold-Induced Vasodilation (CIVD) Skill

Cutaneous Cold-Induced Vasodilation (CIVD) Skill

Cutaneous Cold-Induced Vasodilation (CIVD) Skill

License: Apache-2.0 Python 3.10+ Zero Dependencies MCP Protocol Ready OpenClaw Certified

Zero-dependency sovereign personal agent skill for non-invasive evaluation of Cutaneous Cold-Induced Vasodilation (CIVD), Lewis hunting reaction, rewarming amplitude, and peripheral cold injury resilience.

flowchart TD
    ColdChallenge["Local Cold Immersion Challenge (5 deg C)"] --> Vasoconstriction["Initial Sympathetic Vasoconstriction Nadir (Tmin)"]
    Vasoconstriction --> AxonReflex["Sensory Neuropeptide Release (CGRP / Substance P)"]
    AxonReflex --> AVADilation["Arteriovenous Anastomosis (AVA) Hunting Wave Onset (tonset)"]
    AVADilation --> Rewarming["Peak Periodic Rewarming Amplitude (Tpeak - Tmin)"]
    Rewarming --> CIVDScore["Peripheral Cold Tolerance & Vasomotor Resilience Engine"]
    CIVDScore --> Agent["OpenClaw / Hermes Personal Agent Thermal Prescriptions"]

Features

  • Deterministic Math: Pure Python standard library implementation with zero external dependencies.

  • Environmental Physiology Standards: Implements validated equations for Lewis hunting reaction, rewarming amplitude, and hunting index.

  • Microvascular Cold Defense: Early screening for digital vasospasm, Raynaud's vulnerability, and cold injury predisposition.

  • Model Context Protocol (MCP): Native JSON-RPC tool integration for LLMs and autonomous agents.

Related MCP server: Quantitative Pupillary Light Reflex (PLR) Skill

Quickstart

from client import CutaneousCIVDClient

client = CutaneousCIVDClient()
result = client.evaluate_civd(
    baseline_temp_c=33.2,
    minimum_temp_c=9.2,
    peak_rewarming_temp_c=15.0,
    onset_time_min=6.2
)
print("Rebound Amplitude:", result["rebound_amplitude_deg_c"], "deg C")
print("Cold Resilience Score:", result["cold_resilience_score"])
print("Classification:", result["classification"])

License

Apache-2.0

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