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. 3 tools, served from syntage.main-kill-isr.mintlify.me — the standard set for sites on mintlify.
search_syntagequery_docs_filesystem_syntagesubmit_feedback
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“Start here for Syntage product documentation, developer guides, API reference, and changelogs.”https://docs.syntage.com/
download“Fetch the complete documentation index at: https://docs.syntage.com/llms.txt”https://docs.syntage.com/llms.txt
Context
4,827 sites in the index share the type documentation, of which 1,248 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.
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crm software Record generated from a live database query. Method: about the index.