{
  "tool_id": "art-685-direct-indexing-fit-screen",
  "kernel_id": "art-685-direct-indexing-fit-screen",
  "display_name": "Direct Indexing Fit Screen",
  "tool_version": "1.0.0",
  "mandate_type": "compliance_control",
  "purpose": "Computes a direct-indexing fit screen from caller-declared synthetic inputs: the net benefit in basis points is the declared expected tax alpha minus the declared fee delta (direct-indexing fee minus ETF expense ratio), rounded half-up to 2 decimal places with the arithmetic restated in a trace. The verdict reports the sign of that declared arithmetic only (FIT_POSITIVE, FIT_NEGATIVE, FIT_NEUTRAL). When the caller also declares a holding period and an alpha-exhaustion horizon, the node adds an exhaustion warning; when the caller declares a concentrated stock position, it adds an unwind note. This is a deterministic calculator over declared numbers: it is never advice, never an optimizer, and it prices no costs it has not been given. Zero storage, zero network, no runtime clock.",
  "control_description": "Computes a direct-indexing fit screen from caller-declared synthetic inputs: the net benefit in basis points is the declared expected tax alpha minus the declared fee delta (direct-indexing fee minus ETF expense ratio), rounded half-up to 2 decimal places with the arithmetic restated in a trace. The verdict reports the sign of that declared arithmetic only (FIT_POSITIVE, FIT_NEGATIVE, FIT_NEUTRAL). When the caller also declares a holding period and an alpha-exhaustion horizon, the node adds an exhaustion warning; when the caller declares a concentrated stock position, it adds an unwind note. This is a deterministic calculator over declared numbers: it is never advice, never an optimizer, and it prices no costs it has not been given. Zero storage, zero network, no runtime clock.",
  "declared_inputs": [],
  "declared_outputs": [],
  "kernel_digest": "sha256:8bebade7234612a0a224757aa6c635ee00c4ff33248ddf6f4163cec2186cef6e",
  "trust_label": "independently verified: zkVM execution proof (risc0/groth16-bn254)",
  "data_vintage": "2026-09-12",
  "last_validated": "2026-09-12",
  "conformance_fixtures_vendored": true,
  "compute_proof_ready": "ready",
  "wave": 116,
  "source_url": "https://ainumbers.co/chaingraph/art-685-direct-indexing-fit-screen.html",
  "generated_at": "2026-09-15T01:11:38.523Z"
}