# Ostu: Agent-Direct Score D (49.7%) Site: http://www.ostu.jp Report: https://directindex.org/r/ostu.jp Scanned: 2026-10-22 (Provisional, with the action test and the assistant citation check still to come. The hatched part of the bar isn't measured yet.) Ostu is hard for agents to use. Some AI assistants are turned away by Ostu's website. It can read what Ostu offers. It finds a way to book or order directly, through res-reserve.com. ## Direct links - Menu: https://ostu.jp/menu/ - Phone: +81354548700 - Address: Yoyogi, 5 Chome−67−6 松浦ビル 1F, 151-0053, 渋谷区 - Its menu mentions: a lunch or set menu ## Nearby, also direct Places near Ostu that take a booking or an order on their own website, with no marketplace in between. - Pizzeria and Bar Certo (230 m): https://directindex.org/r/certo-of.com - L’Ombelico／Trunk(Hotel) Yoyogi Park (440 m): https://directindex.org/r/trunk-hotel.com - オーノ・ブォーノ (650 m): https://directindex.org/r/ohno-buono.jp - Regalo (900 m): https://directindex.org/r/regalo-ristorante.com - Concerto (1000 m): https://directindex.org/r/uehara-concerto.com ## What to fix first - **No structured data for the business.** (+14 points) Add schema.org JSON-LD for the business (Restaurant, LocalBusiness or the closest type, with name, address, telephone and openingHoursSpecification, plus servesCuisine and acceptsReservations). Every assistant reads this block first, and the fix kit below has it filled in. Guide: https://directindex.org/guides/structured-data-restaurant - **Booking through an unrecognised third party.** (+9 points) Check that the provider keeps your business as the seller of record. Guide: https://directindex.org/guides/book-direct-on-your-own-website - **The server turns AI crawlers away at the door.** (+6.7 points) Requests as GPTBot (http_403), ClaudeBot (http_403) were refused, but a normal browser got the page. That's usually a bot list at the host or in a firewall that the owner never chose. Ask the host to allow these user agents. Guide: https://directindex.org/guides/blocking-ai-crawlers-without-knowing - **No llms.txt.** (no points, but worth doing) Optional for now and cheap to add. It's a short text file that describes the business for language models. Guide: https://directindex.org/guides/llms-txt-for-a-business ## What the site tells visitors (Measured, not scored) - **No English version declared.** Visitors from abroad, and assistants answering in English, read the page as it is. ## Fix kit: What to paste Structured data (JSON-LD). Paste it as one block in the page's head, or in the builder's custom code box. Change anything that's wrong. ```html ``` llms.txt. Save as /llms.txt at the root of the site. ``` # Ostu > local business (italian) in Yoyogi, 5 Chome−67−6 松浦ビル 1F, 151-0053, 渋谷区, Tokyo. Phone +81354548700. ## Book or order directly - Menu: https://ostu.jp/menu/ ## About - Website: http://www.ostu.jp - This file follows llms.txt (https://llmstxt.org): a short plain-text description for language models. ``` ## Already right - **robots.txt lets AI crawlers in.** No rule blocks the main AI user agents. - **Menu or price list is an HTML page.** Agents can read the items and prices. ## Where it stands 3417 of 10292 in Tokyo. Top 33% of the sites scanned in this index. | What the top 10% of the index does | Top 10% | This site | |---|---|---| | Take bookings or orders on their own domain | 77% | no | | Publish the menu or price list as HTML | 81% | yes | | Let AI crawlers in (no block at the server or in robots.txt) | 89% | no | | Structured data with address, phone and hours | 17% | no | | Have an llms.txt | 21% | no | Nearest places with a similar menu: Pizzeria and Bar Certo (B, 228 m, https://directindex.org/r/certo-of.com); L’Ombelico／Trunk(Hotel) Yoyogi Park (C, 437 m, https://directindex.org/r/trunk-hotel.com); オーノ・ブォーノ (C, 649 m, https://directindex.org/r/ohno-buono.jp); イタリア料理おかだ (F, 744 m, https://directindex.org/r/okada-cucinaitaliana.com); Regalo (D, 900 m, https://directindex.org/r/regalo-ristorante.com); kaiki (F, 955 m, https://directindex.org/r/kaiki-italiana.com); Concerto (C, 995 m, https://directindex.org/r/uehara-concerto.com); Orchestra (D, 1018 m, https://directindex.org/r/restaurant-orchestra.jp); Balcone Shibuya (B, 1022 m, https://directindex.org/r/balcone-shibuya.com); sumile TOKYO (C, 1025 m, https://directindex.org/r/sumiletokyo.com). ## What assistants answer The assistants haven't been asked about this business yet. They're asked about the top-ranked businesses in each city index, and about any business as soon as it's claimed. Claim this page to be included. The assistants were asked 22 everyday questions about Tokyo and named 111 places. Ostu wasn't one of them. See who was named: https://directindex.org/city/tokyo/recommended Compared with its peers: Sites built with WordPress 57% (28% A or B, 145483 sites); This site 49.7%. See what an AI agent reads on this site: https://directindex.org/r/ostu.jp/agent-view ## Businesses like Ostu in Tokyo | Group | Sites | Avg score | A or B | This site | |---|---|---|---|---| | Businesses of the same kind in Tokyo | 10292 | 41% | 8% | 49.7% | | Sites built with WordPress in Tokyo | 3508 | 52% | 14% | 49.7% | The best of the sites built with WordPress in Tokyo: PANAME Crêpes de Paris ＆ Café Bar (GINZA TOKYO) (A 100%, https://directindex.org/r/panamecrepes.com); WORLD BURGER Ikebukuro West Main Store (A 100%, https://directindex.org/r/worldburger.jp); リストランテステファノ (A 100%, https://directindex.org/r/stefano-jp.com); 東海飯店新館 (A 100%, https://directindex.org/r/toukaihanten.tokyo); CRAFTALE (A 95.4%, https://directindex.org/r/craftale-nakameguro.jp). With the three fixes above (No structured data for the business; Booking through an unrecognised third party; The server turns AI crawlers away at the door), the score would be about 95.4%. That would be 8th of 10,292 in Tokyo, up from 3417th. ## The direct record What agents get for Ostu, as JSON: https://directindex.org/api/direct/ostu.jp - Book: none on record - Order: none on record - Menu: https://ostu.jp/menu/ (html_page; from the scan) - Hours: none on record - Phone: +81354548700 - Stable links that count: https://directindex.org/go/ostu.jp/menu ## Can an agent transact? Measured, not scored (the score stays at spec v1.0). - UCP profile (/.well-known/ucp, Google and Shopify's Universal Commerce Protocol): no - ACP discovery document (/.well-known/acp.json, OpenAI and Stripe's Agentic Commerce Protocol): no - MCP server card (/.well-known/mcp/server-card.json): no - Ordering vendor that takes agent orders (Square, Toast, or a vendor whose terms allow agents): no ## Score breakdown | Component | Points | Available | |---|---|---| | Reachable | 18.3 | 25 | | Readable | 8 | 25 | | Actionable | 6 | 15 (the action test: pending) | | Cited | 0 | 0 (the assistant citation check: pending) | ## Agent readiness (Cloudflare) Level 1 of 5, Basic Web Presence. Cloudflare's report: https://isitagentready.com/ostu.jp - Link headers on the homepage: no (how: https://isitagentready.com/.well-known/agent-skills/link-headers/SKILL.md) - sitemap.xml: yes - AI bot rules in robots.txt: yes - Content Signals in robots.txt: no (how: https://isitagentready.com/.well-known/agent-skills/content-signals/SKILL.md) - Markdown on Accept: text/markdown: no (how: https://isitagentready.com/.well-known/agent-skills/markdown-negotiation/SKILL.md) - llms.txt: no (how: https://isitagentready.com/.well-known/agent-skills/llms-txt/SKILL.md) - API catalog (RFC 9727): no (how: https://isitagentready.com/.well-known/agent-skills/api-catalog/SKILL.md) - MCP server card: no (how: https://isitagentready.com/.well-known/agent-skills/mcp-server-card/SKILL.md) - A2A agent card: no (how: https://isitagentready.com/.well-known/agent-skills/a2a-agent-card/SKILL.md) - Agent Skills index: no (how: https://isitagentready.com/.well-known/agent-skills/agent-skills/SKILL.md) - OAuth or OIDC discovery: no (how: https://isitagentready.com/.well-known/agent-skills/oauth-discovery/SKILL.md) - OAuth protected resource metadata: no (how: https://isitagentready.com/.well-known/agent-skills/oauth-protected-resource/SKILL.md) - auth.md: no (how: https://isitagentready.com/.well-known/agent-skills/auth-md/SKILL.md) - Web Bot Auth key directory: no (how: https://isitagentready.com/.well-known/agent-skills/web-bot-auth/SKILL.md) - ARD capability manifest: no (how: https://isitagentready.com/.well-known/agent-skills/ard/SKILL.md) - DNS-AID records: no (how: https://isitagentready.com/.well-known/agent-skills/dns-aid/SKILL.md) - WebMCP tools on the page: no (how: https://isitagentready.com/.well-known/agent-skills/webmcp/SKILL.md) - JSON-LD for the business: no Keep watching this business (https://directindex.org/r/ostu.jp/plan): the assistants are asked again every month, and you see what changed. 2 EUR a month or 19 EUR a year. Deep report: https://directindex.org/r/ostu.jp/deep. Ten questions phrased the way people ask them, each assistant's full answer, the eight nearest similar places, the fix plan and a PDF. 5 EUR, paid once. Reading and scanning stay free. These few euros pay for the questions sent to the assistants and for the servers. Methodology: https://directindex.org/methodology · Rescan now: https://directindex.org/scan?url=ostu.jp&force=1