What we tested
Probed live on 23 Aug 2026 against rubric v1. 5 of 5 checks passed.
PROBE-VERIFIEDtier 2 of 3
✓Markdown negotiationAccept: text/markdown
✓Markdown twin at a predictable URL/page.md
✓llms.txt/llms.txt
✓API catalogRFC 9727
✓MCP server answers/.well-known/mcp/server-card.json → tools/list
What its MCP server offers
We connected, ran tools/list, and recorded what came back on 23 Aug 2026. 6 tools.
search_case_studieslist_specialismsget_specialismlist_industriessearch_newsget_page_markdown
What an agent could do here
Read from the page’s own content, with the wording each was drawn from. Inference is kept separate from tested facts — an agent completing the action is tier 3.
UNVERIFIED
read“Tell Me More”https://www.granite.ie/about
read“Case Study”https://www.granite.ie/case-studies/
Context
29 sites in the index share the category digital agency, of which 9 are transactional.
How we grade
Three tiers. Every listing shows which one it has reached, and when. The rubric.
tier 1Declared
The site says agents are welcome in its robots.txt. A permission, not a capability.
tier 2Probe-verified
We fetched the site and tested each signal ourselves. Dated, repeatable, re-checked on a schedule.
tier 3Behaviourally verified
An agent completed the action end to end — booked, bought, submitted — and it worked.
Own this site?
Behavioural verification — an agent completing your booking, purchase or contact flow end to end, with the date published here — opens to a small founding cohort first. Leave an email to be in it.
Related verified sites
Business.DigitalBusiness.Digital is a digital agency offering consulting and implementation for websites,
digital agency ASPEKTDigital agency in Zadar specializing in web design, SEO, web shops, and web applications f
digital agency AsetoAseto is a digital agency offering web development, SEO, SMM, design, programming, and rea
digital agency BEK Service GmbHBEK Service GmbH is a digital agency offering software development, SEO, SEA, web design,
digital agency BEK Service GmbHBEK Service GmbH is a digital agency offering software development, SEO, SEA, web design,
digital agency MAI GroupMAI Group is a German digital agency specializing in strategy, technology, and digital tra
digital agency DAWEMADAWEMA is a digital agency from Lohne offering SAP integration, custom websites, KI automa
digital agency BlackgateBlackgate is an Adelaide digital agency offering websites, SEO, performance marketing, hos
digital agency Record generated from a live database query. Method: about the index.