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Performs deterministic calendar and business-day calculations, holiday lookups, due-date computation, natural-language date parsing, and auditable calculation explanations.
기능
도구
9
도구
add_days
Add calendar days to a date
The date N whole calendar days after a date (exclusive counting: the start date is day 0). Omit date for today in tz. For working days use business_days; for the gap between two dates use days_between.
읽기 전용
멱등성
입력 스키마
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['days'], 'properties': {'tz': {'type': 'string', 'default': 'UTC', 'maxLength': 64, 'description': 'IANA timezone that defines "today" (e.g. Africa/Kampala). Default UTC.'}, 'date': {'type': 'string', 'default': 'today', 'pattern': '^(\\d{4}-\\d{2}-\\d{2}|today)$', 'description': 'ISO date YYYY-MM-DD, or "today" (resolved in tz)'}, 'days': {'type': 'integer', 'maximum': 100000, 'minimum': -100000, 'description': 'Whole calendar days to add. Negative counts backwards.'}}, 'additionalProperties': False}
출력 스키마
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['answer', 'receipt'], 'properties': {'answer': {'type': 'object', 'properties': {}, 'description': 'The calculated answer (kind-discriminated)', 'additionalProperties': True}, 'receipt': {'type': 'object', 'properties': {}, 'description': 'Auditable receipt: inputs, timezone, convention, workweek, holiday calendar, exclusions, versions, stable result ID', 'additionalProperties': True}}, 'additionalProperties': False}
business_days
Business-day calculations
Span mode (from+to): business days between two dates, exclusive of the start day, inclusive of the end day. Add mode (days, optional date): the date N business days away. Passing from or to selects span mode and needs both; days and date are then ignored, so add mode takes its start date in date, not from. Optional holiday jurisdiction or custom calendar, and a selectable working week. For calendar days use add_days, subtract_days or days_between.
읽기 전용
멱등성
입력 스키마
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'to': {'type': 'string', 'pattern': '^(\\d{4}-\\d{2}-\\d{2}|today)$', 'description': 'ISO date YYYY-MM-DD, or "today" (resolved in tz)'}, 'tz': {'type': 'string', 'default': 'UTC', 'maxLength': 64, 'description': 'IANA timezone that defines "today" (e.g. Africa/Kampala). Default UTC.'}, 'date': {'type': 'string', 'pattern': '^(\\d{4}-\\d{2}-\\d{2}|today)$', 'description': 'ISO date YYYY-MM-DD, or "today" (resolved in tz)'}, 'days': {'type': 'integer', 'maximum': 100000, 'minimum': -100000, 'description': 'Add mode: business days to move. Negative counts backwards.'}, 'from': {'type': 'string', 'pattern': '^(\\d{4}-\\d{2}-\\d{2}|today)$', 'description': 'ISO date YYYY-MM-DD, or "today" (resolved in tz)'}, 'workweek': {'enum': ['mon-fri', 'sun-thu', 'mon-sat'], 'type': 'string', 'description': 'Working week. Default mon-fri (Sat+Sun weekend).'}, 'jurisdiction': {'type': 'string', 'maxLength': 8, 'description': 'Holiday jurisdiction id: US, GB, GB-SCT, GB-NIR, IE, FR, CA, AU, UG (alias UK for GB). No default: omit for no holiday calendar.'}, 'customHolidays': {'type': 'array', 'items': {'type': 'string'}, 'maxItems': 1000, 'description': 'Custom organizational holiday calendar as ISO dates (mutually exclusive with jurisdiction)'}}, 'additionalProperties': False}
출력 스키마
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['answer', 'receipt'], 'properties': {'answer': {'type': 'object', 'properties': {}, 'description': 'The calculated answer (kind-discriminated)', 'additionalProperties': True}, 'receipt': {'type': 'object', 'properties': {}, 'description': 'Auditable receipt: inputs, timezone, convention, workweek, holiday calendar, exclusions, versions, stable result ID', 'additionalProperties': True}}, 'additionalProperties': False}
days_between
Days between two dates
Signed whole calendar days from the from date to the to date, midnight to midnight in tz: positive when to is later, negative when it is earlier. Endpoints are exclusive, so this is the gap and consecutive dates are 1 apart. Either date may be "today", resolved in tz. For working days between two dates use business_days; to move a date by N days use add_days or subtract_days.
읽기 전용
멱등성
입력 스키마
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['from', 'to'], 'properties': {'to': {'type': 'string', 'pattern': '^(\\d{4}-\\d{2}-\\d{2}|today)$', 'description': 'ISO date YYYY-MM-DD, or "today" (resolved in tz)'}, 'tz': {'type': 'string', 'default': 'UTC', 'maxLength': 64, 'description': 'IANA timezone that defines "today" (e.g. Africa/Kampala). Default UTC.'}, 'from': {'type': 'string', 'pattern': '^(\\d{4}-\\d{2}-\\d{2}|today)$', 'description': 'ISO date YYYY-MM-DD, or "today" (resolved in tz)'}}, 'additionalProperties': False}
출력 스키마
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['answer', 'receipt'], 'properties': {'answer': {'type': 'object', 'properties': {}, 'description': 'The calculated answer (kind-discriminated)', 'additionalProperties': True}, 'receipt': {'type': 'object', 'properties': {}, 'description': 'Auditable receipt: inputs, timezone, convention, workweek, holiday calendar, exclusions, versions, stable result ID', 'additionalProperties': True}}, 'additionalProperties': False}
explain
Explain a calculation step by step
Runs any operation and returns the receipt plus human-readable derivation steps. Set op, then pass the fields that operation's own tool takes. Use it when the user asks how an answer was reached.
읽기 전용
멱등성
입력 스키마
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['op'], 'properties': {'op': {'enum': ['add_days', 'subtract_days', 'days_between', 'business_days', 'invoice_due', 'next_occurrence', 'holiday_lookup'], 'type': 'string', 'description': "Operation to explain. holiday_lookup is the holidays tool; the others share their tool's name."}, 'to': {'type': 'string', 'pattern': '^(\\d{4}-\\d{2}-\\d{2}|today)$', 'description': 'ISO date YYYY-MM-DD, or "today" (resolved in tz)'}, 'tz': {'type': 'string', 'default': 'UTC', 'maxLength': 64, 'description': 'IANA timezone that defines "today" (e.g. Africa/Kampala). Default UTC.'}, 'net': {'type': 'integer', 'maximum': 3650, 'minimum': 0, 'description': 'Net-N payment terms in calendar days (Net 30 = 30).'}, 'date': {'type': 'string', 'pattern': '^(\\d{4}-\\d{2}-\\d{2}|today)$', 'description': 'ISO date YYYY-MM-DD, or "today" (resolved in tz)'}, 'days': {'type': 'integer', 'maximum': 100000, 'minimum': -100000, 'description': 'Day count for add_days, subtract_days and business_days add mode.'}, 'from': {'type': 'string', 'pattern': '^(\\d{4}-\\d{2}-\\d{2}|today)$', 'description': 'ISO date YYYY-MM-DD, or "today" (resolved in tz)'}, 'roll': {'type': 'boolean', 'description': 'Roll a weekend or holiday due date forward to the next business day. Default false.'}, 'year': {'type': 'integer', 'maximum': 3000, 'minimum': 1600, 'description': 'Calendar year for holiday_lookup, e.g. 2027'}, 'event': {'type': 'string', 'maxLength': 40, 'description': 'Event slug (e.g. christmas). Exactly one of event/weekday.'}, 'weekday': {'type': 'integer', 'maximum': 6, 'minimum': 0, 'description': '0 = Sunday .. 6 = Saturday. Exactly one of event/weekday.'}, 'workweek': {'enum': ['mon-fri', 'sun-thu', 'mon-sat'], 'type': 'string', 'description': 'Working week. Default mon-fri (Sat+Sun weekend).'}, 'invoiceDate': {'type': 'string', 'pattern': '^(\\d{4}-\\d{2}-\\d{2}|today)$', 'description': 'ISO date YYYY-MM-DD, or "today" (resolved in tz)'}, 'jurisdiction': {'type': 'string', 'maxLength': 8, 'description': 'Holiday jurisdiction id: US, GB, GB-SCT, GB-NIR, IE, FR, CA, AU, UG (alias UK for GB). No default: omit for no holiday calendar.'}, 'customHolidays': {'type': 'array', 'items': {'type': 'string'}, 'maxItems': 1000, 'description': 'Custom organizational holiday calendar as ISO dates (mutually exclusive with jurisdiction)'}}, 'additionalProperties': False}
출력 스키마
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['receipt', 'steps'], 'properties': {'steps': {'type': 'array', 'items': {'type': 'string'}, 'description': 'Human-readable derivation, identical to the REST /api/v1/explain output'}, 'receipt': {'type': 'object', 'properties': {}, 'description': 'Auditable receipt for the operation', 'additionalProperties': True}}, 'additionalProperties': False}
holidays
Public holidays for a jurisdiction and year
Observed public holidays with the nominal (legal) date and status: rule (statutory) or declared (officially declared for that year). Declared-only holidays are omitted for undeclared years, with a holiday_data_incomplete warning.
읽기 전용
멱등성
입력 스키마
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['jurisdiction', 'year'], 'properties': {'year': {'type': 'integer', 'maximum': 3000, 'minimum': 1600, 'description': 'Calendar year to list, e.g. 2027'}, 'jurisdiction': {'type': 'string', 'maxLength': 8, 'description': 'Holiday jurisdiction id: US, GB, GB-SCT, GB-NIR, IE, FR, CA, AU, UG (alias UK for GB).'}}, 'additionalProperties': False}
출력 스키마
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['answer', 'receipt'], 'properties': {'answer': {'type': 'object', 'properties': {}, 'description': 'The calculated answer (kind-discriminated)', 'additionalProperties': True}, 'receipt': {'type': 'object', 'properties': {}, 'description': 'Auditable receipt: inputs, timezone, convention, workweek, holiday calendar, exclusions, versions, stable result ID', 'additionalProperties': True}}, 'additionalProperties': False}
invoice_due
Invoice due date from net terms
Due date for Net-N payment terms (calendar days, invoice date = day 0). Optional roll-forward past weekends and, with a jurisdiction or custom calendar, public holidays.
읽기 전용
멱등성
입력 스키마
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['net'], 'properties': {'tz': {'type': 'string', 'default': 'UTC', 'maxLength': 64, 'description': 'IANA timezone that defines "today" (e.g. Africa/Kampala). Default UTC.'}, 'net': {'type': 'integer', 'maximum': 3650, 'minimum': 0, 'description': 'Net-N payment terms in calendar days (Net 30 = 30).'}, 'roll': {'type': 'boolean', 'description': 'Roll a weekend or holiday due date forward to the next business day. Default false.'}, 'workweek': {'enum': ['mon-fri', 'sun-thu', 'mon-sat'], 'type': 'string', 'description': 'Working week. Default mon-fri (Sat+Sun weekend).'}, 'invoiceDate': {'type': 'string', 'default': 'today', 'pattern': '^(\\d{4}-\\d{2}-\\d{2}|today)$', 'description': 'ISO date YYYY-MM-DD, or "today" (resolved in tz)'}, 'jurisdiction': {'type': 'string', 'maxLength': 8, 'description': 'Holiday jurisdiction id: US, GB, GB-SCT, GB-NIR, IE, FR, CA, AU, UG (alias UK for GB). No default: omit for no holiday calendar.'}, 'customHolidays': {'type': 'array', 'items': {'type': 'string'}, 'maxItems': 1000, 'description': 'Custom organizational holiday calendar as ISO dates (mutually exclusive with jurisdiction)'}}, 'additionalProperties': False}
출력 스키마
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['answer', 'receipt'], 'properties': {'answer': {'type': 'object', 'properties': {}, 'description': 'The calculated answer (kind-discriminated)', 'additionalProperties': True}, 'receipt': {'type': 'object', 'properties': {}, 'description': 'Auditable receipt: inputs, timezone, convention, workweek, holiday calendar, exclusions, versions, stable result ID', 'additionalProperties': True}}, 'additionalProperties': False}
next_occurrence
Next occurrence of an event or weekday
The next occurrence strictly after the base date (default today) of either a tracked event slug (e.g. "christmas") or a weekday (0 = Sunday .. 6 = Saturday). Provide exactly one of event/weekday.
읽기 전용
멱등성
입력 스키마
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'tz': {'type': 'string', 'default': 'UTC', 'maxLength': 64, 'description': 'IANA timezone that defines "today" (e.g. Africa/Kampala). Default UTC.'}, 'from': {'type': 'string', 'pattern': '^(\\d{4}-\\d{2}-\\d{2}|today)$', 'description': 'ISO date YYYY-MM-DD, or "today" (resolved in tz)'}, 'event': {'type': 'string', 'maxLength': 40, 'description': 'Event slug (e.g. christmas). Exactly one of event/weekday.'}, 'weekday': {'type': 'integer', 'maximum': 6, 'minimum': 0, 'description': '0 = Sunday .. 6 = Saturday. Exactly one of event/weekday.'}}, 'additionalProperties': False}
출력 스키마
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['answer', 'receipt'], 'properties': {'answer': {'type': 'object', 'properties': {}, 'description': 'The calculated answer (kind-discriminated)', 'additionalProperties': True}, 'receipt': {'type': 'object', 'properties': {}, 'description': 'Auditable receipt: inputs, timezone, convention, workweek, holiday calendar, exclusions, versions, stable result ID', 'additionalProperties': True}}, 'additionalProperties': False}
parse_date_query
Parse a natural-language date question
Parses queries like "90 business days from today in uganda" into a normalized operation, answers it, and returns the auditable receipt. Ambiguous dates (03/04/2027) return needsClarification instead of a guess.
읽기 전용
멱등성
입력 스키마
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['q'], 'properties': {'q': {'type': 'string', 'maxLength': 200, 'minLength': 1, 'description': "The date question in plain language. Pass the user's wording rather than a date you computed."}, 'tz': {'type': 'string', 'default': 'UTC', 'maxLength': 64, 'description': 'IANA timezone that defines "today" (e.g. Africa/Kampala). Default UTC.'}, 'locale': {'enum': ['mdy', 'dmy'], 'type': 'string', 'description': 'Resolves ambiguous slash dates; omit to receive clarification choices'}}, 'additionalProperties': False}
출력 스키마
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['parsed', 'confidence', 'warnings'], 'properties': {'answer': {'type': 'object', 'properties': {}, 'description': 'The calculated answer, absent when parsed is null', 'additionalProperties': True}, 'parsed': {'anyOf': [{'type': 'object', 'properties': {}, 'additionalProperties': True}, {'type': 'null'}], 'description': 'Normalized operation, or null when the query could not be understood confidently'}, 'receipt': {'type': 'object', 'properties': {}, 'description': 'Auditable receipt, absent when parsed is null', 'additionalProperties': True}, 'warnings': {'type': 'array', 'items': {'type': 'string'}, 'description': 'Machine-readable notes, e.g. unsupported_unit or time_ignored'}, 'confidence': {'type': 'number', 'description': '1.0 is a clean grammar hit; below 0.5 the query is refused rather than guessed'}, 'canonicalUrl': {'type': ['string', 'null'], 'description': 'tilwhen page that answers this query, to cite; null when no page covers it'}, 'needsClarification': {'type': 'object', 'properties': {}, 'description': 'Present when the query is genuinely ambiguous (e.g. 03/04/2027); offers explicit choices instead of a guess', 'additionalProperties': True}}, 'additionalProperties': False}
subtract_days
Subtract calendar days from a date
The date N whole calendar days before a date (exclusive counting: the start date is day 0). Omit date for today in tz. For working days use business_days; for the gap between two dates use days_between.
읽기 전용
멱등성
입력 스키마
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['days'], 'properties': {'tz': {'type': 'string', 'default': 'UTC', 'maxLength': 64, 'description': 'IANA timezone that defines "today" (e.g. Africa/Kampala). Default UTC.'}, 'date': {'type': 'string', 'default': 'today', 'pattern': '^(\\d{4}-\\d{2}-\\d{2}|today)$', 'description': 'ISO date YYYY-MM-DD, or "today" (resolved in tz)'}, 'days': {'type': 'integer', 'maximum': 100000, 'minimum': -100000, 'description': 'Whole calendar days to subtract. Negative counts forwards.'}}, 'additionalProperties': False}
출력 스키마
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['answer', 'receipt'], 'properties': {'answer': {'type': 'object', 'properties': {}, 'description': 'The calculated answer (kind-discriminated)', 'additionalProperties': True}, 'receipt': {'type': 'object', 'properties': {}, 'description': 'Auditable receipt: inputs, timezone, convention, workweek, holiday calendar, exclusions, versions, stable result ID', 'additionalProperties': True}}, 'additionalProperties': False}
기록
최근 도구 변경
변경됨
business_days
2026년 9월 29일 3:03 AM
변경됨
days_between
2026년 9월 29일 3:03 AM
변경됨
explain
2026년 9월 19일 2:52 AM
변경됨
holidays
2026년 9월 19일 2:52 AM
변경됨
next_occurrence
2026년 9월 19일 2:52 AM
변경됨
invoice_due
2026년 9월 19일 2:52 AM
변경됨
business_days
2026년 9월 19일 2:52 AM
변경됨
days_between
2026년 9월 19일 2:52 AM
변경됨
subtract_days
2026년 9월 19일 2:52 AM
변경됨
add_days
2026년 9월 19일 2:52 AM
변경됨
parse_date_query
2026년 9월 19일 2:52 AM
추가됨
explain
2026년 9월 17일 12:38 PM
추가됨
holidays
2026년 9월 17일 12:38 PM
추가됨
next_occurrence
2026년 9월 17일 12:38 PM
추가됨
invoice_due
2026년 9월 17일 12:38 PM
추가됨
business_days
2026년 9월 17일 12:37 PM
추가됨
days_between
2026년 9월 17일 12:37 PM
추가됨
subtract_days
2026년 9월 17일 12:37 PM
추가됨
add_days
2026년 9월 17일 12:37 PM
추가됨
parse_date_query
2026년 9월 17일 12:37 PM
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