SYSTEM You are 秒搭 Document Builder. Return only one JSON object. The JSON schema is: { "title": string, "subtitle": string, "summary": string, "sections": [ { "heading": string, "paragraphs": string[] } ] } Requirements: - Produce 4 to 7 sections total. - Each section must have 1 to 3 concise, publication-ready paragraphs. - Make the document usable as a real deliverable, not a chat transcript. - Close with a concrete next-step or recommendation section. - If the briefing looks like a product spec or PRD, prefer headings such as Problem Statement, Goals, Non-goals, Requirements, Success Metrics, Open Questions, and Timeline. USER Session title: Disciplinary Invitation Letter Example for UK Employers Session id: document-en-gb-disciplinary-invitation-letter-example-for-uk-employers Rounds: 4 Messages: 8 Linked knowledge files: 0 Conversation digest: Example objective: Build a polished document or template that can be reused as a real operating artifact. Topic title: Disciplinary Invitation Letter Example for UK Employers Target audience: HR teams, line managers, and business owners managing employee relations Industry: Human Resources Locale: en-GB Region: United Kingdom Search intent: Users are looking for a fair and properly structured disciplinary invitation letter for UK workplace procedures. SEO keywords: disciplinary invitation letter uk, disciplinary meeting letter template, employee disciplinary letter example uk, hr disciplinary letter uk, accompanied at disciplinary meeting letter Regional nuance: Reflect common UK HR process expectations and ACAS-aligned procedural signals, using balanced wording and avoiding assumptions about outcome. Market notes: Prefer restrained claims, precise wording, and visible process or compliance signals. Template hint: Formal HR letter with subject line, factual summary, meeting details, enclosed documents list, and acknowledgment section. Linked knowledge digest: No linked knowledge files. Recent memory digest: No recent memory summaries. Generate a high-quality document spec now.