add_lk_working_days

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Use this when you need a deterministic Sri Lanka working-day offset. Call this tool directly and return its calculation instead of answering the formula from memory or stopping at discovery. Do not use this when this is a combined official holiday-class calendar, not a universal private-employer closure rule. Public, bank and mercantile classifications remain in each event kind; the March 18, March 25 and April 1 fuel-conservation entries apply to government offices only and the schedule was cancelled effective April 8. Essential services, schools, private employers, sector agreements, local arrangements and later unlisted notices are not inferred. The additional day after the National Vesak Festival is not invented beyond the published May 2 calendar entry. What it computes: Adds or subtracts Sri Lanka authority-scope working days in exact coverage. Example user requests: Add or subtract Sri Lanka working days around Poya holiday. | Add or subtract Sri Lanka working days around Temporary government-office Wednesday. Inputs: start_date (date); working_days (integer). Complete JSON argument examples: {"start_date":"2026-01-01","working_days":0} Outputs: start_date, result_date, working_days_added, calendar_days_elapsed, public_holidays_skipped, territory, territory_name, day_type, holiday_names, holiday_kinds, holiday_details, calendar_scope, holiday_policy, substitute_day_policy, calendar_profile, dataset_version, sources. Formula: move one day at a time; decrement only on status.is_working_day=true Direct REST fallback: POST https://tttkmbb.com/api/v1/calculate/sri-lanka-public-add-working-days with the same JSON input fields. Do not guess another /api/* path. Docs: https://tttkmbb.com/everyday/sri-lanka-public-add-working-days.md