{
  "capability_id": "electrical.rf.skin_depth",
  "tool_id": "skin-depth",
  "engine": "skin-depth",
  "calculation_version": "1.0.0",
  "generated_at": "2026-11-10T05:18:41.769Z",
  "engine_build": "2026-09-10",
  "test_count": 6,
  "passed": 6,
  "failed": 0,
  "tests_summary": {
    "golden": {
      "passed": 2,
      "total": 2
    },
    "boundary": {
      "passed": 2,
      "total": 2
    },
    "property": {
      "passed": 2,
      "total": 2
    }
  },
  "engine_tested": true,
  "expert_reviewed": true,
  "internally_reviewed": false,
  "review_kind": "expert",
  "source_checked": true,
  "reviewed_by": "CalculatorX electrical review",
  "reviewer_role": "electrical-engineer",
  "last_reviewed": "2026-08-08",
  "expert_review": {
    "status": "approved",
    "reviewer": {
      "name": "CalculatorX electrical review",
      "role": "electrical-engineer"
    },
    "reviewed_at": "2026-08-08",
    "scope": [
      "formula",
      "input semantics",
      "assumptions",
      "limitations",
      "sources",
      "tests"
    ],
    "kind": "expert"
  },
  "internal_review": {
    "status": "not_applicable",
    "reviewer": null
  },
  "page": "https://www.calculatorx.com/calc/electric/skin-depth",
  "api": "https://www.calculatorx.com/api/v1/calc/skin-depth",
  "schema_input": "https://www.calculatorx.com/schemas/electrical.rf.skin_depth.input.json",
  "schema_output": "https://www.calculatorx.com/schemas/electrical.rf.skin_depth.output.json",
  "assumptions": [],
  "limitations": [
    "Good-conductor approximation"
  ],
  "boundary_conditions": [
    "f,ρ,μr ≤0 → VALUE_MUST_BE_POSITIVE"
  ],
  "sources": [
    {
      "title": "Jackson / RF handbook skin effect",
      "section": "Skin depth",
      "supports": "δ=√(2ρ/ωμ) equivalent form",
      "kind": "reference"
    },
    {
      "title": "NIST / electromagnetics handbook",
      "section": "Skin effect in good conductors",
      "supports": "δ=√(ρ/πfμ) form",
      "kind": "reference"
    }
  ],
  "methods": [],
  "fingerprint": "sha256:e21f6d199817e3257d0030e0837a0767fb429369d1715d3d9ccd9c1c94a2b0b2",
  "tier": "expert_verified",
  "verification": {
    "tests": {
      "passed": 6,
      "total": 6,
      "golden": 2,
      "boundary": 2,
      "property": 2
    },
    "contract_checks": {
      "passed": 6,
      "total": 6
    }
  },
  "evidence_core_generated_at": "2026-09-06T13:16:40.891Z",
  "rendered_at": "2026-11-10T05:18:41.769Z",
  "release_integrity": {
    "status": "verified",
    "scope": "workspace",
    "production_attestation_required": true,
    "calculation_version": "1.0.0",
    "artifacts": {
      "engine": "1.0.0",
      "page": "1.0.0",
      "capability": "1.0.0",
      "evidence": "1.0.0",
      "input_schema": "1.0.0",
      "output_schema": "1.0.0",
      "mcp_contract": "1.0.0"
    },
    "digests": {
      "input_schema_sha256": "53e2a079a2ade8b6e84248da892dc274102496951a6de1eeace8263eb744ee3f",
      "output_schema_sha256": "077d9f5f5237c36c8d07e781e1ecf0d69f4a5818530b7ac7c3ed034b81a908f1",
      "evidence_sha256": "1dc13d9ebada31715b10c3fb2ff6f1dea6100e8adad7fff82ed49426dc3971eb",
      "evidence_core_sha256": "1dc13d9ebada31715b10c3fb2ff6f1dea6100e8adad7fff82ed49426dc3971eb",
      "capability_sha256": "a704d212c7a2a8ed2861b19deb8d306bd2af027b173f7cc04836c0eb01cfa85e",
      "engine_sha256": "c6ebd8436f08b413e1ac6317b2d48550f2e6639a90dff254244e3aa562158b8d",
      "mcp_contract_sha256": "eb3e39ad4a95ed263415b4932f185d5edfe00a2403267b7c5ed5f718d1ff6da3"
    },
    "contract_checks": {
      "total": 6,
      "passed": 6,
      "failed": 0,
      "items": [
        {
          "id": "release-artifacts-aligned",
          "status": "pass",
          "detail": "1.0.0"
        },
        {
          "id": "schema-output-required-declared",
          "status": "pass"
        },
        {
          "id": "schema-valid-input-executes",
          "status": "pass"
        },
        {
          "id": "engine-success-output-validates-schema",
          "status": "pass"
        },
        {
          "id": "schema-rejects-incomplete-input",
          "status": "pass"
        },
        {
          "id": "rest-success-payload-validates-schema",
          "status": "pass"
        }
      ]
    },
    "report": "https://www.calculatorx.com/.well-known/calculatorx-release-integrity.json"
  },
  "tests": [],
  "disclosure": {
    "policy": "calculatorx-public-evidence-v1",
    "full_validation": "private",
    "representation": "summary"
  }
}