deadline_planner
Deadline Planner
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Plan a task schedule backward from a hard deadline in business days. PREMIUM (license).
Given ordered tasks with business-day durations, returns each task's
start/end dates, the latest safe start, and slack from today. Typical
input {"due_date": "2026-06-01", "tasks": [{"name": "Draft", "days": 3},
{"name": "Review", "days": 2}]} returns {"schedule": [...],
"latest_safe_start": "YYYY-MM-DD", "slack_business_days_from_today": N,
"verdict": "..."}.
Use when the end date is fixed and steps must be placed backward from it.
Not for forward counting from a start date (business_days) and not for
response-time targets (sla_due). Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"} (for example {"error": "due_date must be YYYY-MM-DD"}). Every call is read-only and idempotent, so after correcting the input it is always safe to retry.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
| due_date | string | yes | The deadline, ISO YYYY-MM-DD. |
| tasks | array | yes | Ordered list of task objects, each {"name": str, "days": int} where days is the business-day duration (1-365); the first 30 tasks are scheduled. |
| holidays | array | no | Optional list of ISO YYYY-MM-DD dates treated as non-working days. |
| buffer_days | integer | no | Business days of safety margin kept free before due_date, clamped to 0-365. Default 1. |
Raw JSON schema
{
"additionalProperties": false,
"properties": {
"due_date": {
"type": "string",
"description": "The deadline, ISO YYYY-MM-DD."
},
"tasks": {
"items": {
"additionalProperties": true,
"type": "object"
},
"type": "array",
"description": "Ordered list of task objects, each {\"name\": str, \"days\": int}\nwhere days is the business-day duration (1-365); the first 30\ntasks are scheduled."
},
"holidays": {
"default": [],
"items": {
"type": "string"
},
"type": "array",
"description": "Optional list of ISO YYYY-MM-DD dates treated as\nnon-working days."
},
"buffer_days": {
"default": 1,
"type": "integer",
"description": "Business days of safety margin kept free before\ndue_date, clamped to 0-365. Default 1."
}
},
"required": [
"due_date",
"tasks"
],
"type": "object"
}