# Sumac: Agent-Direct Score A (89.2%)

Site: http://www.sumac.sg/
Report: https://directindex.org/r/sumac.sg
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.)
Sumac is ready for agents.
An AI assistant can open Sumac's website. It can't find a menu or price list, so it answers from other sites. It finds a way to book or order directly, through ResDiary.

## Direct links
- Book directly: https://booking.resdiary.com/widget/Standard/SumacRifleRange/723 (through resdiary acting for the business)
- Order directly: https://www.sumac.sg/en_SG (on the business's own site)
- Phone: +6583322694
- Address: 131 Rifle Range Rd, #03-04, 588406, Singapore
- Languages: English

## Nearby, also direct
Places near Sumac that take a booking or an order on their own website, with no marketplace in between.
- Hapiha (680 m): https://directindex.org/r/hapiha.com
- OMMA Korean Charcoal BBQ - Bukit Timah (710 m): https://directindex.org/r/omma.com.sg
- Time for Thai (720 m): https://directindex.org/r/timeforthai.com.sg
- Nonya Delicatessen (880 m): https://directindex.org/r/nonyadelicatessen.com

## What to fix first
- **No menu or price list found.** (+7 points) Agents answer 'what do they offer?' from marketplaces instead. Add a page with the menu or price list and link to it from the homepage. Guide: https://directindex.org/guides/menu-pdf-ai
- **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

## Fix kit: What to paste

llms.txt. Save as /llms.txt at the root of the site.

```
# Sumac

> restaurant in 131 Rifle Range Rd, #03-04, 588406, Singapore, Singapore. Phone +6583322694.

## Book or order directly

- Book: https://booking.resdiary.com/widget/Standard/SumacRifleRange/723 (through resdiary acting for the business)
- Order: https://www.sumac.sg/en_SG (on the business's own site)

## About

- Website: http://www.sumac.sg/
- 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.
- **AI crawlers get the page.** GPTBot, ClaudeBot and PerplexityBot all got a normal response.
- **Structured data found (Restaurant).** address, phone, opening hours
- **Booking through resdiary on your own domain.** There's no marketplace commission, and the customer stays yours.
- **Ordering on your own site.** Agents can order without going through a marketplace.

## Where it stands
196 of 2556 in Singapore. Top 8% 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 | 97% | yes |
| Publish the menu or price list as HTML | 89% | no |
| Let AI crawlers in (no block at the server or in robots.txt) | 97% | yes |
| Structured data with address, phone and hours | 54% | yes |
| Have an llms.txt | 49% | no |

Nearest places in the index: Spize @ Rifle Range Road (C, 90 m, https://directindex.org/r/spize.sg); Oktop (D, 656 m, https://directindex.org/r/yellowsing.sg); Hapiha (B, 682 m, https://directindex.org/r/hapiha.com); O.BBa Jjajang and BBQ (D, 708 m, https://directindex.org/r/obba-sg.com); OMMA Korean Charcoal BBQ - Bukit Timah (C, 710 m, https://directindex.org/r/omma.com.sg); Time for Thai (C, 720 m, https://directindex.org/r/timeforthai.com.sg); Al-Azhar (D, 725 m, https://directindex.org/r/al-azhar.com); Nonya Delicatessen (B, 881 m, https://directindex.org/r/nonyadelicatessen.com); GRILL by CUT (B, 895 m, https://directindex.org/r/grillbycut.sg); Yong Seng Satay and Western Food (D, 955 m, https://directindex.org/r/cococart.co).

## 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 Singapore and named 160 places. Sumac wasn't one of them. See who was named: https://directindex.org/city/singapore/recommended


Compared with its peers: Sites using ResDiary 62% (34% A or B, 158 sites); This site 89.2%.

See what an AI agent reads on this site: https://directindex.org/r/sumac.sg/agent-view

## Businesses like Sumac in Singapore

| Group | Sites | Avg score | A or B | This site |
|---|---|---|---|---|
| Businesses of the same kind in Singapore | 2556 | 54% | 34% | 89.2% |
| Sites using ResDiary in Singapore | 6 | 66% | 33% | 89.2% |

The best of the sites using ResDiary in Singapore: Feast Asia (B 78.5%, https://directindex.org/r/feastasia.sg); Wave Cafe & Wine Bar (C 66.2%, https://directindex.org/r/grandmercureroxy.com.sg); Ichigo Ichie (C 63.1%, https://directindex.org/r/ichigoichie.com.sg); Song Garden (C 61.5%, https://directindex.org/r/mercure-singapore-bugis.com); VENUE by Sebastian (F 35.4%, https://directindex.org/r/venuebysebastian.com).

With the fix above (No menu or price list found), the score would be about 100%, which would be first of 2,556 in Singapore.

## The direct record
What agents get for Sumac, as JSON: https://directindex.org/api/direct/sumac.sg
- Book: https://booking.resdiary.com/widget/Standard/SumacRifleRange/723 (vendor on own site: ResDiary; found by the scan of 2026-10-22, not yet tested)
- Order: https://www.sumac.sg/en_SG (own site; found by the scan of 2026-10-22, not yet tested)
- Menu: none on record
- Hours: none on record
- Phone: +6583322694
- Stable links that count: https://directindex.org/go/sumac.sg/book, https://directindex.org/go/sumac.sg/order

## 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 | 25 | 25 |
| Readable | 18 | 25 |
| Actionable | 15 | 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/sumac.sg
- 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: yes

Keep watching this business (https://directindex.org/r/sumac.sg/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/sumac.sg/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=sumac.sg&force=1