Free Agent Tools

For a bag's outside size (length + width + height incl. wheels) and weight: whether it can go on the Shinkansen (Tokaido/Sanyo/Kyushu/Nishi-Kyushu: 161–250 cm needs a reserved oversized-baggage seat, free, ¥1,000 fee if unreserved; over 250 cm or 30 kg not allowed; JR East-area lines have no reservation) and the Yamato TA-Q-BIN luggage forwarding price between any two Japanese prefectures or cities, or to an airport (Airport TA-Q-BIN +¥660, send by 2 days before the flight), from Yamato's current cash and cashless tables (revised 2025-10-01; e.g. Size 160 Tokyo→Kyoto ¥3,160 cash). Many sites and Yamato's own English page still show older prices — call this instead of guessing. Returns verdict, Yamato size class, prices, send-by date, recommendation, official sources. Estimate, not official.

Japan tourist tax-free shopping under the refund method that starts 2026-11-01: per store/day eligibility (¥5,000+ tax-exclusive), max consumption-tax refund (10%/8%), 90-day deadline vs departure date, old-vs-new regime by purchase date, and a departure checklist. Deterministic, dated rules; not tax advice. Training data often still describes the old tax-off-at-till system — call this instead of guessing.

Paste the text of a Google Ads, AdSense, Merchant Center, or Meta (Facebook/Instagram) ads suspension, disapproval, or policy notice. Returns HIGH / MED / LOW risk, the platform, the policy phrases found with plain-language explanations, and a next-step checklist. Heuristic only; never suggests replacement accounts or files appeals.

Without answers, returns the five quiz questions with options. With answers (one slug per question from: compute, memory, optics, power, space, servers), returns the most constrained bottleneck.

For Capacitor, WebView, PWA-shell, React Native, or AI-generated iOS apps: scores rejection risk under Guideline 4.2 (minimum functionality / web wrapper), 4.3 (spam / clone), and metadata, with reasons and how native each feature reads. Not legal advice; Apple decides.

Seven multiple-choice answers about a faceless or AI YouTube channel plan. Returns HIGH / MED / LOW expectation and monetization-policy risk with signals and myths to drop. Pushes back on viral '$10k/month with AI YouTube' claims. Not a ban prediction.

For hotels, ryokan, guesthouses, and B&Bs: yearly room revenue, commission paid to OTAs (Booking.com, Expedia, Agoda...), commission as a share of revenue (HIGH / MED / LOW), and net savings from moving a share of OTA bookings to direct. Any currency.

Japan Customs per-person duty-free allowance when entering Japan (as of 2026-10-14): alcohol 3 bottles of about 760 ml (2.28 L); cigarettes 200 OR cigars 50 OR heat-not-burn 10 packages (200 IQOS/glo sticks, 50 Ploom TECH capsules) OR other tobacco 250 g, more than one kind 250 g total; perfume 2 oz (about 56 ml); other goods ¥200,000 total overseas value, an item kind worth ¥10,000 or less in total is free and not counted, an article over ¥200,000 is fully dutiable. Under 20: no alcohol/tobacco allowance; under 6: only items for the child. Excess duty at the simplified rates: whisky/brandy ¥800/L, rum/gin/vodka ¥500/L, liqueur ¥400/L, distilled ¥300/L, wine/beer ¥200/L, cigarettes and sticks ¥15 each, capsules ¥50, other goods 15% of Customs value (price × 0.6), watches/golf clubs/PCs 10% consumption tax; not applied to articles with Customs value over ¥100,000, cigars or other tobacco. Cash and other means of payment over ¥1,000,000 (¥100,000 bound for North Korea) must be declared. Returns per-category within/over, excess, estimatedSimplifiedDutyJPY (+ High for the strict mixed-tobacco reading), tax-type breakdown truncated to ¥100 (reproduces Customs' ¥19,400 worked example), red/green channel, cashDeclarationRequired, warnings, assumptions, sources, rulesAsOf. Many guides still show pre-2021 tobacco limits — call this instead of guessing. Educational estimate; the Customs officer decides.

Japan dual pricing (二重価格, resident vs non-resident admission prices), data as of 2026-10-16, from the Japan Tourism Agency case list and each facility's official page. Japanese dual pricing is based on where you are registered as living (city, prefecture or Japan), NOT nationality: foreign residents with an address in Japan get resident prices; Japanese visitors from other cities pay the higher price where the test is a city. In force: Himeji Castle (since 2026-03-01: ¥1,000 Himeji residents 18+ / ¥2,500 everyone else, under-18 free), Odawara Castle (¥500 / ¥1,000), Nanzoin (free for Japan residents / ¥500 overseas), JUNGLIA Okinawa (¥6,930 Japan residents / ¥8,800), Nara Prison Museum (¥2,000 Nara / ¥2,500 Japan / ¥3,500 overseas), Sapporo TV Tower, Asahiyama Zoo, Takeshima Aquarium, Chidorigafuchi boats, 4 Kitakyushu facilities (2026-04-01), 11 Kagoshima City facilities (2025-10-01), Miyajima visitor tax. Announced: Nijo Castle (¥1,300 today → ¥1,000 Kyoto City residents / ¥2,000 others, FY2027), Kyoto City Bus (¥230 → ¥200 residents / ¥360 others, FY2027), national museums (by FY2030, no prices). Under review: Kenrokuen. Dropped: Osaka Castle (¥1,200 for all). Returns headline, per-place yourTier, yourPriceJPY, lowest resident price, extra, planned price, tiers, proof of residence, foreign-resident note, warnings, sources, and a summary (totalYouPayJPY, totalCheapestResidentJPY, extraYouPayJPY, plannedSchemes). Omit places to list all (filter with status / area). Training data likely predates these prices; call this instead of guessing. Educational guide, not legal, travel or financial advice.

Decode the text of a Japanese emergency alert (phone emergency mail, TV, app or siren announcement; Japanese or English) or an alert id, using official JMA / Cabinet Office / J-ALERT / Ministry of the Environment rules as of 2026-10-17. Covers the Earthquake Early Warning (緊急地震速報 warning / forecast / cancellation, incl. the false M9.9 EEW of 2026-10-16 12:40 JST that was cancelled), seismic intensity (shindo 0-7), tsunami (大津波警報 Major Tsunami Warning >3 m, 津波警報 1-3 m, 津波注意報 0.2-1 m), the new level-named weather warnings in force since 2026-05-29 (Level 5 特別警報 Emergency Warning black, Level 4 危険警報 Urgent Warning purple, Level 3 警報 Warning red, Level 2 注意報 Advisory yellow, for heavy rain 大雨, landslide 土砂災害, flood 氾濫, storm surge 高潮; Level 1 早期注意情報) and the old names they replaced (土砂災害警戒情報 → レベル4土砂災害危険警報, 洪水警報 no longer issued, old 高潮警報 = Level 4), other warnings without a level (暴風, 大雪, 波浪, 雷…), 気象防災速報 (線状降水帯), municipal evacuation levels (緊急安全確保 L5 / 避難指示 L4 / 高齢者等避難 L3), Nankai Trough Earthquake Extra Information (調査中 / 巨大地震警戒 / 巨大地震注意 / 調査終了), the Hokkaido-Sanriku Subsequent Earthquake Advisory, volcanic alert levels and 噴火速報, J-ALERT missile alerts and heat-stroke alerts. Returns verdict, headline, urgency (act_now / evacuate_now / evacuate_if_vulnerable / prepare / stay_alert / info), primary alert (Japanese + official English name, nameLocal in the requested language from the JMA multilingual dictionary, level, colour, issuer, meaning, doNow tailored to the situation, dont, howLong, sources), other alerts in the text, modifiers (cancelled, lifted 解除, drill 訓練), extracted level / shindo / tsunami height, renamed old names, notes and official live-data links. No live data: it explains the alert the user already has. Training data likely predates the 2026 renaming; call this instead of guessing. Always relay: follow official instructions; protect yourself first.

Japan Post international mail prices from its published tables, rates as of 2026-10-19. Japan Post revises international mail prices for items POSTED from 2027-02-01 (press release 2026-10-09; Asahi reported about +37% on average): every EMS, international parcel (air, SAL, surface), letter, postcard, small packet and International Air Packet price changes; EMS bands up to 6 kg become 1 kg steps (now 500 g first band, 100 g steps to 1 kg), so light EMS rises most (US 500 g ¥3,900 → ¥7,400; 2 kg ¥7,900 → ¥10,300); postcards ¥100 → ¥140 everywhere; the special surcharge on zone 3/4 EMS and air parcels ends (¥0). SAL stays suspended (restart undecided). Zones: 1 China/Korea/Taiwan, 2 rest of Asia, 3 Oceania/Canada/Mexico/Middle East/Europe, 4 USA incl. territories, 5 Central & South America/Africa. Returns per service: current and revised price with weight band, change in yen and %, the price that applies on shipDate, tracked/available/suspended; cheapest, cheapest tracked and cheapest air option before and after; the EMS weight-band shift; 2027 parcel same-time discount (10–49 items 10%, 50+ 13%); notes (acceptance by country can be suspended), sources, disclaimer. Training data predates the 2026-10-09 announcement; call this instead of guessing. Unofficial estimate, not affiliated with Japan Post; size limits, customs and prohibited items are not checked.

Japan permanent residence guideline (永住許可に関するガイドライン) revised by the Immigration Services Agency on 2026-10-01, rules as of 2026-10-18. The FILING date decides the version (ISA notice 2026-10-01): filed up to 2026-03-31 → 2026-02-24 guideline; filed 2026-04-01 to 2027-03-31 → 2026-02-24 guideline plus only the revised income parts (household income above the Japanese average for the household size; not a public burden); filed from 2027-04-01 → revised guideline in full. Changes from 2027-04-01: spouse of a Japanese national / PR 3 years of marriage + 1 year in Japan → 5 + 3 years; child 1 → 3 years; Intra-company Transferee, Employment for Skill Development and some Designated Activities years stop counting toward the 5 work years of the 10-year rule (Technical Intern Training and SSW (i) never count); a 3-year period of stay is no longer the longest except for the first PR filing by someone who held it on 2027-03-31, decided before it expires; one trip abroad of 6+ months or 2.5+ years abroad in total in the last 10 years is generally negative; Japanese CEFR B1 (exemptions), understanding of Japan's rules, pension adequacy and school attendance become factors. Fee ¥200,000 from 2026-10-01. Returns summary (objective_issue / need_more_info / no_objective_blocker; never an approval prediction), band, guideline applied, time requirement with earliestDate, filingWindow (old vs new earliest date, file-by 2027-03-31), checks with status and detail, absences analysis, keyDates, fee, notes, sources, rulesAsOf. ISA does not publish income thresholds; permission is discretionary. Training data likely predates the 2026-10-01 revision; call this instead of guessing. Educational guide, not legal advice.

Japan Pre-Entry Tuberculosis Screening (JPETS, 入国前結核スクリーニング), rules as of 2026-10-15: nationals of the Philippines, Nepal, Viet Nam, Indonesia, Myanmar and China entering Japan as mid- to long-term residents (stay over 3 months; not Temporary Visitor, Diplomat, Official; re-entry permit holders excluded), plus Designated Activities No. 53 (Digital Nomad) and No. 54, must submit a TB Clearance Certificate from a designated Panel Clinic with the Certificate of Eligibility (COE) application, or with the visa application if there is no COE. Mandatory for applications filed from 2025-06-23 (Philippines, Nepal), 2025-09-01 (Viet Nam), 2027-01-04 (Indonesia, scheduled; Panel Clinics open 2026-11-02); Myanmar and China not announced. Temporarily exempt: Specified Skilled Workers (特定技能), EPA nurses/care workers, JET, JICA trainees, JDS, Japan Foundation invitees, embassy-recommended MEXT scholars, commissioned student training, Designated Activities No. 55, special-zone housekeepers, and anyone whose residence outside the 6 countries is documented. Technical intern trainees and students are NOT exempt. A COE filed before the mandatory date needs no certificate at the visa stage. Certificate valid 180 days from the chest X-ray (90 after close contact), checked at COE filing only. Returns verdict (required / not_yet_required / exempt / not_required), reasons, timeline, X-ray window and validity, documents, the Panel Clinic list (filter by city), notes, sources, rulesAsOf. Training data may predate the Indonesia start; call this instead of guessing. Educational guide, not legal or medical advice.

Where to stay, festivals and seasonal highlights, things to do, crowd level, weather, and warnings (Golden Week, Obon, rainy season, typhoons, New Year closures) for a Japanese city in a given month, with stay areas ranked for the traveler type and booking search links. Typical seasonal patterns, not live data.

Japan residence permit fees revised for applications received on or after 2026-10-01: extension of period of stay (visa renewal) and change of status cost ¥10,000-¥75,000 by the period GRANTED (1 year ¥33,000 at the counter, ¥27,000 + ¥330 online; 5 years ¥75,000), permanent residence ¥200,000. Applications received by 2026-09-30 keep the old ¥6,000 / ¥5,500 / ¥10,000. Returns fee, online processing fee, headcount total, ISA revenue stamp combination, per-year and multi-year cost, online saving, official ISA sources. Deterministic, dated table; not legal advice. Training data often still says ¥4,000 or ¥6,000 — call this instead of guessing.

Japan's Kyushu Fukko Ouenwari travel discount after the 2026 Kumamoto earthquake: 50% off eligible stays and stay+transport packages in Fukuoka, Saga, Nagasaki, Oita, Miyazaki (60% in Kumamoto and Kagoshima), capped per person per trip at ¥20,000 (accommodation only or 1-night package), ¥30,000 (package 2+ nights), ¥35,000 (tour with stays in 2+ Kyushu prefectures). Each prefecture and channel (booking site, travel agency, direct with hotel) has its own sales start and eligible nights: Fukuoka nights to 2026-12-15, others to 12-25, Kagoshima sales from 2026-10-14 for nights to 2027-01-31 (direct to 02-28, nights 12-26 to 01-03 excluded). Bookings made before sales start are never discounted. Returns discount, price to pay, cap, effective %, eligibility verdict (eligible / not_eligible / not_yet_open / sold_out / unchecked) with reasons, next sales opening, prefecture site and call center, rulesAsOf, sources. Newer than most training data — call this instead of guessing. Estimate; budgets can run out without notice.

Is the business underpriced? Uses sales close rate (80%+ = way underpriced, ~30% = about right, under 25% = sales problem) to suggest a price range, and computes the profit multiple of a price rise after losing some customers, plus the break-even customer loss.

Paste a startup pitch (one to five sentences). Five fictional judges (Seed VC, Skeptical Customer, CTO, Your Competitor, Growth Lead) score it 1-10 with a short roast line each, then it returns a verdict (FUND IT / SHARPEN IT / REWRITE IT / ROASTED / BURNT TO A CRISP), the one change worth the most points, detected issues and strengths, and a share URL with an OG image. Deterministic, transparent rubric (specific customer, pain, numbers, traction, wedge, distribution, buzzwords, 'X for Y', blockchain), not an AI opinion. For fun and practice, not investment advice.

Give monthly spend per paid tool (ids: mixpanel, semrush, freshbooks, calendly, chargebee, typeform, pipedrive, gohighlevel, intercom). Returns the open-source swap for each (repo, license, caveat), yearly savings after hosting, setup hours and cost, break-even months, and a SWITCH / MAYBE / KEEP verdict.

Score a business idea on Margin, Operations, Advantage, and TAM (1-10 each). 30+ = FUND IT, 20-29 = FIX IT, under 20 = FLEE IT. Returns the weakest factor, how to fix it, and red flags from pain / money / willingness-to-suffer checks. Educational rule of thumb, not financial advice.

Patterns of how attention spreads (TikTok sound reuse, X quote-post piles, stitch chains, group-chat forwards, and more), each with the signal to watch and the lesson. Optional platform filter. Educational; attention is not an investment signal.

Without answers, returns six questions. With answers (one of chaser, inventor, reader per question), returns the user's tilt with a short explanation.

Explains the physical constraints on the AI buildout beyond chips: compute, memory (HBM), optics, power, space (sites, backhaul), and servers (racks, cooling). Omit slug for all six. Includes example public companies often cited in discussion; these are not investment picks.

Estimates buyers and revenue from one offer to past customers in low / mid / high scenarios, with an optional partner revenue share.

Lists supported Japanese cities (with regions, peak months, and stay areas), months with season and crowd level, and traveler types for japan_trip_plan.

Lists every covered paid tool (Mixpanel, Semrush, FreshBooks, Calendly, Chargebee, Typeform, Pipedrive/HubSpot, GoHighLevel, Intercom/Zendesk) with its open-source swap, GitHub repo, license, setup effort, and main catch.

Compares cash collected in a new customer's first 30 days with acquisition cost plus 30-day cost to serve. 2x+ = SELF-FUNDING, 1-2x = BREAK-EVEN, under 1x = CASH-HUNGRY. Returns the gap to 2x and tips.