Legal Clause Extraction with Claude Code: Result JSON Schema

A production playbook for legal clause extraction in cross-industry operations using Claude Code: result json schema, run-scoped inputs, logs, typed results, and artifacts.

Audience: Legal tech teams

The problem

Legal tech teams need legal clause extraction to run repeatedly against contracts, playbooks, clauses, and review notes. In cross-industry operations, the pain is not one good answer; it is repeatability, auditability, exception handling, and evidence that survives handoff.

Implementation path

Define the outer result contract once, let the legal clause extraction skill own body.data, and reject terminal output that does not match the expected schema.

Tradeoffs and failure modes

Schema enforcement adds upfront design work, but removes prompt parsing from the product surface. For legal clause extraction, the practical test is whether a second run can be debugged, retried, and consumed by a product without reading the raw agent transcript.

Result shape

{
  "schema_version": "argo.result.v1",
  "summary": "legal clause extraction completed",
  "body": { "type": "legal_clause_extraction", "data": {}, "exceptions": [] },
  "artifacts": []
}

Run this on Argo