document-vault

name	document-vault
description	Passport validity rules, ESTA/ETA/visa logic per destination, and proactive document expiry warnings for Danish citizens travelling as a family.

Document Vault Skill

Destination Classification

Group destinations to determine which passport validity and authorization rules apply.

Schengen Area (3-month passport validity rule, no authorization needed)

Spain, Portugal, France, Italy, Greece, Germany, Austria, Netherlands, Belgium, Switzerland, Norway, Sweden, Finland, Czech Republic, Poland, Hungary, Croatia, Iceland, Malta, Cyprus, Luxembourg, Slovenia, Slovakia, Estonia, Latvia, Lithuania, Denmark

6-Month Passport Validity Countries

USA, Canada, Australia, Thailand, Indonesia, Mexico, South Africa, Brazil, Turkey, UAE, Singapore, Japan

Countries Requiring Travel Authorization

• USA → ESTA
• UK → ETA
• Canada → eTA
• Australia → ETA (subclass 601)

All Other Destinations (default)

Apply the 6-month passport validity rule as the safest assumption. Check authorization requirements case-by-case.

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Passport Validity Rules

When checking a family member's passport against a destination and travel dates:

Destination type	Required validity	Measured from
Schengen Area	3 months beyond return date	Return date
USA, Canada, Australia, 6-month countries	6 months beyond entry date	Departure/entry date
UK	Valid for duration of stay only	Return date
Unknown / other	6 months beyond entry date (safest default)	Departure/entry date

Danish Passport Expiry Rules

• Adult passports (issued at age 18+): valid for 10 years from issue date
• Children's passports (issued under 18): valid for 5 years from issue date
• If a child's passport was issued more than 5 years ago, it is likely expired

Passport Status Classification

• VALID: Passport has sufficient validity for the destination and travel dates
• EXPIRES_SOON: Passport is valid but within 3 months of the required validity threshold — renew proactively
• INSUFFICIENT_VALIDITY: Passport does not meet the destination's validity requirement — renewal required before travel
• EXPIRED: Passport expiry date has already passed
• UNKNOWN: Passport expiry date is null or missing — cannot determine status

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Travel Authorization Rules for Danish Citizens

Destination	Authorization	Cost	Validity	Application
USA	ESTA	~$21	2 years	esta.cbp.dhs.gov
UK	ETA	£10	—	UK ETA app
Canada	eTA	CAD $7	5 years	canada.ca/eta
Australia	ETA (subclass 601)	—	—	Australian ETA app
Schengen zone / most of Europe	None required	—	—	—

ESTA-Specific Rules

• Individual application required per person (including children)
• Linked to a specific passport number — renewing a passport invalidates the existing ESTA
• Usually approved instantly, but allow up to 72 hours
• Must be obtained before boarding a flight to the USA

Authorization Status Classification

• VALID: Authorization on record, obtained, and not expired before travel date
• MISSING: No authorization on record, or obtained: false
• EXPIRED: Authorization expiry date is before the travel date
• NOT_REQUIRED: Destination does not require authorization for Danish citizens
• POTENTIALLY_INVALID: Authorization exists but linked passport has been renewed since it was issued

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Proactive Flag Rules

Generate these flags automatically whenever relevant — do not wait for the user to ask.

Passport Flags

• Expiring within validity window: "[Member]'s passport expires [date] — insufficient for [destination] travel (requires [X] months validity beyond [entry/return] date). Renewal needed before booking. Allow 4-6 weeks."
• Missing expiry date: "[Member]'s passport expiry date is missing — add via /travel:update-profile before a reliable check can be run."
• Child passport age rule: "[Member]'s passport was issued [date], over 5 years ago — likely expired under Danish children's passport rules."

Authorization Flags

• No authorization on record: "No [ESTA/ETA/eTA] on record for [Member]. Required for [destination] travel. Apply at [link] — costs [amount], takes ~10 minutes, [processing time note]."
• Authorization expiring before travel: "[Member]'s [ESTA/ETA] expires [date], before the travel date. Renew before the trip."
• Passport renewed since authorization: "[Member]'s passport was renewed since their [ESTA/ETA] was issued — the authorization is linked to the old passport and is likely invalid. Re-apply required."

Child-Specific Flags

• Child turning 18 before travel: "[Member] turns 18 before [travel_date] — their child ESTA/authorization is invalid. An adult authorization is required."
• Child passport issued > 5 years ago: "[Member]'s passport was issued [date] (> 5 years ago). Danish children's passports are valid for 5 years — likely expired."