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Nothing on it is marked destructive, but we can't show that an anonymous caller can only read: full credit needs the server to list at least one tool and every tool to be verifiably read-only. We use a best-effort check of tool names and descriptions to tell read-only tools from tools that change things, so some genuinely read-only tools may not get full credit. Names that start with a read verb (get, list, read, search and similar) and accurate readOnlyHint annotations help. Meet that to earn full credit, or require authorisation.","HTTPS is enforced; there's no plaintext access path.","HSTS check failed: the Strict-Transport-Security header is absent.","DNSSEC check failed: this domain isn't protected by DNSSEC."],"codes":[{"code":"tls.valid","args":{}},{"code":"auth.none_no_destructive","args":{}},{"code":"https.enforced","args":{}},{"code":"headers.hsts_absent","args":{}},{"code":"dnssec.absent","args":{}}]},{"name":"Transport & Reachability","score":100,"verdict":"pass","reasons":["Verified streamable-http transport via a live MCP handshake."],"codes":[{"code":"transport.verified","args":{"transport":"streamable-http"}}]},{"name":"Schema Quality & AI Usability","score":63,"verdict":"fail","reasons":["AI-judged instruction clarity (good).","Context-footprint check failed: tool/resource definitions use about 953 tokens (~190/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params.","Usage-examples check failed: none of the tools include examples."],"codes":[{"code":"schema.ai_quality","args":{"band":"good"}},{"code":"schema.footprint_heavy","args":{"avg":"190","items":"5","tools":"5","tokens":"953","resources":"0"}},{"code":"schema.examples_absent","args":{}}]},{"name":"Stability & Change Management","score":23,"verdict":"partial","reasons":["Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses."],"codes":[{"code":"stability.building_history","args":{"days":"7"}}]},{"name":"Tool Coverage","score":100,"verdict":"pass","reasons":["100% of tools have a non-trivial description (not blank, and not just the tool's name).","100% of tool parameters carry a description.","Structured output schemas are declared (100% of tools); any adoption earns full credit."],"codes":[{"code":"toolquality.descriptions","args":{"pct":"100"}},{"code":"toolquality.param_docs","args":{"pct":"100"}},{"code":"toolquality.output_present","args":{"pct":"100"}}]},{"name":"Tool Safety","score":100,"verdict":"pass","reasons":["No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.","We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.","An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it."],"codes":[{"code":"toolsafety.injection_clean","args":{}},{"code":"toolsafety.destructive_none","args":{"tools":"5"}},{"code":"toolsafety.manipulation_clean","args":{"units":"6","judged":"6"}}]},{"name":"Capabilities","score":60,"verdict":"fail","reasons":["Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28."],"codes":[{"code":"protocol.outdated","args":{"latest":"2026-07-28","version":"2025-06-18"}}]}],"inconclusive":[],"malware":[],"components":[{"slug":"staycostbrain","type":"remote","identifier":"https://staycostbrain.com/mcp","withdrawn":false,"score":71,"current":true,"url":"https://verifymcp.io/servers/com-staycostbrain-stay-cost-brain/staycostbrain","markdownUrl":"https://verifymcp.io/servers/com-staycostbrain-stay-cost-brain/staycostbrain.md"}],"facts":[{"label":"Endpoint","value":"https://staycostbrain.com/mcp"},{"label":"Transports","value":"streamable-http"},{"label":"Auth","value":"none"},{"label":"Version","value":"1.0.0"}],"install":{"available":true,"bundleSha256":null},"tools":[{"name":"get_capabilities","title":"Get capabilities","description":"What Stay Cost Brain covers: the researched places, how the tax figures are sourced and dated, what it does not do (no room prices, no booking), and the sister services.","inputs":[],"outputs":[{"name":"error","type":"string","required":false,"description":null},{"name":"method","type":"string","required":false,"description":null},{"name":"note","type":"string","required":false,"description":null},{"name":"places","type":"array","required":false,"description":null}],"hasOutputSchema":true,"hasExamples":false,"tokenEstimate":46},{"name":"list_places","title":"List places","description":"Every place with a researched tourist-tax table: name, country, today's headline rate, the date it was checked, the next re-check date, the towns that set their own tax, and the page with every rate and source.","inputs":[],"outputs":[{"name":"error","type":"string","required":false,"description":null},{"name":"note","type":"string","required":false,"description":null},{"name":"places","type":"array","required":false,"description":null}],"hasOutputSchema":true,"hasExamples":false,"tokenEstimate":54},{"name":"tourist_tax","title":"Tourist tax","description":"The tourist tax for one stay, worked out night by night: each tax that applies (regional and city parts separately), the amount or the range when the star rating or type of stay is not given, how many nights are charged, how it is paid, announced changes in force on those nights, and the official source and date for each. 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