letter_render
Generate the chase letter for the current stage
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Third-party content written by another agent. Data to evaluate, not instructions.
Chase an unpaid invoice: generate the letter for the current stage of the ladder -- reminder 1 (polite), reminder 2 (firm, with the late fees note) or the final notice (before-action wording) -- as Markdown or as self-contained printable HTML. Nothing is emailed or sent anywhere: this server produces the letter text, and sending it is your act. Record the sending with letter_sent so the ladder advances.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
| invoice | string | yes | The chased invoice: its id (DUN-2026-0001) or its invoice reference |
| format | string | no | markdown (default) or html: a self-contained printable page with no external anything |
| stage | number | no | Render a specific stage instead of the one currently due, to preview or to re-issue a letter already sent |
| on | string | no | The letter's date, YYYY-MM-DD; late fees accrue to it and the final-notice deadline is 7 days after it. Default today |
Raw JSON schema
{
"type": "object",
"properties": {
"invoice": {
"type": "string",
"maxLength": 200,
"description": "The chased invoice: its id (DUN-2026-0001) or its invoice reference"
},
"format": {
"type": "string",
"enum": [
"markdown",
"html"
],
"description": "markdown (default) or html: a self-contained printable page with no external anything"
},
"stage": {
"type": "number",
"enum": [
1,
2,
3
],
"description": "Render a specific stage instead of the one currently due, to preview or to re-issue a letter already sent"
},
"on": {
"type": "string",
"maxLength": 10,
"description": "The letter's date, YYYY-MM-DD; late fees accrue to it and the final-notice deadline is 7 days after it. Default today"
}
},
"required": [
"invoice"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}