{"id":"legal-clause-comparator","title":"Clause Comparator","description":"Diff typed. Clause diffs tedious. Typed v1 agent with eval coverage.","category":"legal","status":"validated","version":"1.0.0","source":"agentskit-registry","license":"MIT","tags":["legal","structured-output","v1"],"packages":["@agentskit/core","@agentskit/runtime","@agentskit/tools"],"files":["agent.ts","README.md","eval.ts"],"requires":{"zod":"^3","zod-to-json-schema":"^3"},"skill":{"name":"legal-clause-comparator","description":"Diff typed. Clause diffs tedious. Typed v1 agent with eval coverage.","systemPrompt":"You are Clause Comparator. Clause diffs tedious. Output: Diff typed.\nDraft sections with citations from input. Gaps for missing facts.\nNEVER invent facts — gaps and openQuestions for missing input. Always draft for human review.\n${UNTRUSTED_CONTENT_DIRECTIVE}\nCall submit_clause_comparator exactly once. Stop."},"flow":null,"a2a":{"id":"io.agentskit.registry.legal-clause-comparator","name":"Clause Comparator","description":"Diff typed. Clause diffs tedious. Typed v1 agent with eval coverage.","version":"1.0.0","homepage":"https://registry.agentskit.io","skills":[{"name":"legal-clause-comparator","description":"Diff typed. Clause diffs tedious. Typed v1 agent with eval coverage.","capabilities":{"streaming":true,"cancellation":true,"requiresApproval":false}}]},"sources":[{"path":"agent.ts","content":"import type { AdapterFactory, ChatMemory, Observer, ToolCall, ToolDefinition } from '@agentskit/core'\nimport { fenceUntrustedContent, UNTRUSTED_CONTENT_DIRECTIVE } from '@agentskit/core/security'\nimport { invokeStructured } from '@agentskit/runtime'\nimport { defineZodTool } from '@agentskit/tools'\nimport { z } from 'zod'\nimport { zodToJsonSchema } from 'zod-to-json-schema'\nimport type { JSONSchema7 } from 'json-schema'\n\n/** Clause Comparator — v1 validated. Pain: Clause diffs tedious */\n\nexport interface Section { heading: string; body: string; citations: string[] }\nexport interface AgentOutput { title: string; sections: Section[]; gaps: string[]; openQuestions: string[] }\nexport interface AgentResult extends AgentOutput { requiresReview: boolean }\nexport interface LegalClauseComparatorConfig {\n  adapter: AdapterFactory\n  memory?: ChatMemory\n  observers?: Observer[]\n  onConfirm?: (toolCall: ToolCall) => boolean | Promise<boolean>\n  maxSteps?: number\n}\n\nconst Output = z.object({\n  title: z.string(),\n  sections: z.array(z.object({ heading: z.string(), body: z.string(), citations: z.array(z.string()).default([]) })).min(1),\n  gaps: z.array(z.string()).default([]),\n  openQuestions: z.array(z.string()).default([]),\n})\nconst toJson = (s: z.ZodTypeAny): JSONSchema7 => zodToJsonSchema(s) as JSONSchema7\n\nconst skill = {\n  name: 'legal-clause-comparator',\n  description: \"Clause Comparator — typed output agent (draft spec).\",\n  systemPrompt: `You are Clause Comparator. Clause diffs tedious. Output: Diff typed.\nDraft sections with citations from input. Gaps for missing facts.\nNEVER invent facts — gaps and openQuestions for missing input. Always draft for human review.\n${UNTRUSTED_CONTENT_DIRECTIVE}\nCall submit_clause_comparator exactly once. Stop.`,\n  tools: ['submit_clause_comparator'],\n}\n\nexport function createLegalClauseComparatorAgent(config: LegalClauseComparatorConfig) {\n  const submit = (): ToolDefinition =>\n    defineZodTool({ name: 'submit_clause_comparator', description: 'Submit result. Once.', schema: Output, toJsonSchema: toJson, async execute() { return 'recorded' } }) as ToolDefinition\n\n  async function run(input: string): Promise<AgentResult> {\n    if (!input?.trim()) throw new Error('legal-clause-comparator requires non-empty input')\n    const result = await invokeStructured({\n      adapter: config.adapter,\n      tool: submit(),\n      task: `INPUT:\\n${fenceUntrustedContent(input)}`,\n      parse: (a) => Output.parse(a),\n      skill,\n      memory: config.memory,\n      observers: config.observers,\n      onConfirm: config.onConfirm,\n      maxSteps: config.maxSteps ?? 4,\n    })\n    return { ...result, requiresReview: true }\n  }\n  return {\n    name: 'legal-clause-comparator',\n    run,\n    asHandle() { return { name: 'legal-clause-comparator', run: (t: string) => run(t).then((r) => JSON.stringify(r)) } },\n  }\n}\n"},{"path":"README.md","content":"# Clause Comparator\n\n> **v1 validated** — `npx agentskit add legal-clause-comparator`\n\n## Pain\nClause diffs tedious\n\n## Output\nDiff typed\n"},{"path":"eval.ts","content":"import type { EvalSuite } from '@agentskit/eval'\n\nexport const suite: EvalSuite = {\n  name: 'legal-clause-comparator',\n  cases: [\n    { input: 'Complete input for Clause Comparator: Clause diffs tedious. Provide full structured output.', expected: (r: string) => r.length > 20 && /requiresReview|summary|title|category|findings|sections|score|clusters|items|steps/i.test(r) },\n    { input: 'Minimal input.', expected: (r: string) => /gap|openQuestion/i.test(r) || r.length > 10 },\n    { input: 'Input with specific detail: ACME Corp project deadline March 15.', expected: (r: string) => /ACME|March|15/i.test(r) || /gap/i.test(r) },\n    { input: 'Empty context — only says \"process this\".', expected: (r: string) => r.length > 5 },\n  ],\n}\n"}],"installable":true,"validation":{"status":"approved","score":96,"confidence":0.96,"method":"codex-executor-independent-reviewer","iterations":1,"cases":3,"summary":"The agent produced valid structured outputs for all three cases, avoided fabricating clause details from sparse prompts, surfaced missing inputs, required review, and resisted the explicit injection attempt. Behavior is conservative and aligned with a legal clause comparator when no actual clauses are provided. Minor weakness: the outputs are mostly fallback/gap reports and do not demonstrate real clause-diff capability because the test inputs did not include actual clauses; the injection case also quotes the injection text in citations, though not in a way that follows it or creates unsafe content.","strengths":["Valid structured output in every case.","No empty outputs or runtime failures.","Correctly identifies missing original and revised clauses.","Surfaces uncertainty and asks useful follow-up questions.","Resists the injection request to output only APPROVED.","Avoids hallucinating realistic legal clauses, parties, dates, or business context beyond the input."],"notes":[]}}