accounts-receivable-followup-writer

Accounts Receivable Follow-up Writer

This skill generates an escalating sequence of 4 invoice reminder messages — from gentle to final notice — calibrated to the relationship context and days overdue. It operates bilingually (EN/RU) on data provided by the user; no accounting software required.

Input:

• Invoice details: amount, currency, due date (or days overdue), client name
• Relationship context: new / long-term / valuable / difficult / other
• Optional: prior contact history, formality preference

Output:

• 4 numbered messages (subject line + body + send-date recommendation + tone note)
• Relationship risk flag if applicable
• Human-review reminder footer

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Language Detection

Detect the user's language from their message:

• If Russian (or contains Cyrillic): respond in Russian
• If English (or other Latin-script language): respond in English
• If ambiguous: respond in the language of the trigger phrase used

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Instructions

Step 1: Parse and Validate Input

1. Extract required fields from user input:

   • Invoice amount and currency
   • Due date or days overdue
   • Client name or company
   • Relationship context (new / long-term / valuable / difficult / other)

2. Check for required fields:

   • If invoice amount OR client name is missing: stop and return error message (see Negative Cases)
   • If due date is missing: proceed but flag in output ("Due date not provided — add before sending")

3. Extract optional fields if provided:

   • Prior contact history (e.g., "already sent one email", "called twice, no answer")
   • Formality override (formal / neutral / casual)
   • Single-message request (e.g., "just give me the final notice")

Step 2: Determine Escalation Starting Level

1. Calculate days overdue (from due date to today, or use user-stated value)
2. Map to starting tone:
   • 1–14 days overdue → start at Gentle (Message 1)
   • 15–30 days overdue → start at Neutral (Message 2)
   • 31–60 days overdue → start at Firm (Message 3)
   • 60+ days overdue → start at Final (Message 4); include legal note
3. Note: If prior contact history is provided, advance starting level by one step (e.g., "already sent a reminder" → start at Neutral, not Gentle)