{"$schema":"https://verifymcp.io/schemas/trust-report.json","schemaVersion":1,"license":{"name":"CC BY-NC 4.0","url":"https://creativecommons.org/licenses/by-nc/4.0/"},"generatedAt":"2026-11-06T11:38:23.796Z","url":"https://verifymcp.io/servers/cc-perfectclock-perfect-clock/perfectclock","markdownUrl":"https://verifymcp.io/servers/cc-perfectclock-perfect-clock/perfectclock.md","server":{"slug":"cc-perfectclock-perfect-clock","name":"Perfect Clock","registryName":"cc.perfectclock/perfect-clock","description":"Find meeting times across time zones and compare working hours.","registryStatus":"active","deletedAt":null,"statusMessage":null,"liveness":"live","publisher":{"class":"unknown","claimed":false}},"component":{"slug":"perfectclock","type":"remote","identifier":"https://perfectclock.cc/mcp","withdrawn":false,"url":"https://verifymcp.io/servers/cc-perfectclock-perfect-clock/perfectclock","version":"1.0.0","transport":null,"scoredAt":"2026-11-06T07:21:22.637Z"},"score":{"total":79,"tier":"medium","status":"scored","weekDelta":3,"history":[{"date":"2026-11-06","total":79},{"date":"2026-11-05","total":78},{"date":"2026-11-04","total":78},{"date":"2026-11-03","total":77},{"date":"2026-11-02","total":77},{"date":"2026-11-01","total":76},{"date":"2026-10-31","total":76},{"date":"2026-10-30","total":76},{"date":"2026-10-29","total":75},{"date":"2026-10-28","total":75},{"date":"2026-10-27","total":74},{"date":"2026-10-26","total":74},{"date":"2026-10-25","total":73}]},"categories":[{"name":"Endpoint Security","score":80,"verdict":"fail","reasons":["The endpoint's TLS certificate is valid, in date, and uses a strong key.","No authorisation is required to call this server. 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.","The HSTS (Strict-Transport-Security) header is present.","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_present","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":77,"verdict":"fail","reasons":["100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).","AI-judged instruction clarity (good).","Context-footprint check failed: tool/resource definitions use about 649 tokens (~162/item across 4 items; 2 tools + 2 resources), over budget; trim descriptions and params.","Usage-examples check failed: none of the tools include examples."],"codes":[{"code":"schema.descriptions","args":{"pct":"100"}},{"code":"schema.ai_quality","args":{"band":"good"}},{"code":"schema.footprint_heavy","args":{"avg":"162","items":"4","tools":"2","tokens":"649","resources":"2"}},{"code":"schema.examples_absent","args":{}}]},{"name":"Stability & Change Management","score":40,"verdict":"partial","reasons":["Stability observed for 12 of 30 days with no destabilising changes; credit accrues until the full window elapses."],"codes":[{"code":"stability.building_history","args":{"days":"12"}}]},{"name":"Tool Coverage","score":92,"verdict":"partial","reasons":["100% of tools have a non-trivial description (not blank, and not just the tool's name).","77% of tool parameters carry a description."],"codes":[{"code":"toolquality.descriptions","args":{"pct":"100"}},{"code":"toolquality.param_docs","args":{"pct":"77"}}]},{"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 2 captured tool definition(s), and no name or description among them implies an irreversible operation.","An AI judge read all 4 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":"2"}},{"code":"toolsafety.manipulation_clean","args":{"units":"4","judged":"4"}}]},{"name":"Capabilities","score":100,"verdict":"pass","reasons":["Implements a current MCP spec version (2026-07-28).","Supports UI / widget rendering."],"codes":[{"code":"protocol.current","args":{"version":"2026-07-28"}},{"code":"cap.ui_supported","args":{}}]}],"inconclusive":[],"malware":[],"components":[{"slug":"perfectclock","type":"remote","identifier":"https://perfectclock.cc/mcp","withdrawn":false,"score":79,"current":true,"url":"https://verifymcp.io/servers/cc-perfectclock-perfect-clock/perfectclock","markdownUrl":"https://verifymcp.io/servers/cc-perfectclock-perfect-clock/perfectclock.md"}],"facts":[{"label":"Endpoint","value":"https://perfectclock.cc/mcp"},{"label":"Transports","value":"streamable-http"},{"label":"Auth","value":"none"},{"label":"Version","value":"1.0.0"}],"install":{"available":true,"bundleSha256":null},"tools":[{"name":"plan_meeting_schedule","title":"Plan a meeting schedule","description":"Plans a one-off or recurring meeting with people in other time zones when its time is known (e.g. \"every other Tuesday at 10:00 Berlin time with Anna in Tbilisi\"). Expands it into concrete dates and shows each one in every participant's local time, with working-hours checks, public holidays and daylight-saving shifts. Saves the schedule for 30 days and returns a private perfectclock.cc/s/... link that opens it in Perfect Clock; each call saves a new schedule with its own link.","inputs":[{"name":"durationMinutes","type":"integer","required":false,"description":null},{"name":"maxOccurrences","type":"integer","required":false,"description":"How many upcoming meetings to list."},{"name":"participants","type":"array","required":true,"description":"People or places the meeting must suit, each with their own time zone."},{"name":"rule","type":"object","required":true,"description":"Recurrence of the meeting."},{"name":"time","type":"string","required":true,"description":"Local start time in `tz`."},{"name":"title","type":"string","required":true,"description":"Meeting title."},{"name":"tz","type":"string","required":true,"description":"Time zone the meeting time is fixed in (usually the organizer's)."}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":211},{"name":"find_meeting_windows","title":"Find meeting windows","description":"Finds when people in other time zones can meet, when the time is not decided yet: the windows on each day when all participants are within their working hours, accounting for weekends, public holidays and daylight-saving changes, and one suggested start time that fits the most days. Saves that suggested time on those days for 30 days and returns a private perfectclock.cc/s/... link that opens it in Perfect Clock; each call saves a new schedule with its own link.","inputs":[{"name":"days","type":"integer","required":false,"description":null},{"name":"durationMinutes","type":"integer","required":false,"description":null},{"name":"from","type":"string","required":false,"description":"First day in `tz`; default today."},{"name":"participants","type":"array","required":true,"description":"People or places the meeting must suit, each with their own time zone."},{"name":"title","type":"string","required":false,"description":"Meeting title, if the user gave one."},{"name":"tz","type":"string","required":true,"description":"Time zone whose calendar days are scanned (usually the organizer's)."}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":188}],"toolsTruncatedAtCapture":false,"diagnostics":{"capturedAt":"2026-11-06T07:21:22.000Z","track":"remote","endpoint":"https://perfectclock.cc/mcp","declaredUrl":null,"truncated":false,"tls":{"outcome":"valid","label":"Valid","version":"TLS 1.3","cipherSuite":"TLS_AES_128_GCM_SHA256","chainError":null,"certificates":[{"subject":"CN=*.perfectclock.cc","issuer":"CN=YR2,O=Let's Encrypt,C=US","notBefore":"2026-09-15T07:10:37Z","notAfter":"2026-12-14T07:10:36Z","keyType":"RSA","keyBits":2048,"isCa":false},{"subject":"CN=YR2,O=Let's Encrypt,C=US","issuer":"CN=Root YR,O=ISRG,C=US","notBefore":"2025-09-03T00:00:00Z","notAfter":"2028-09-02T23:59:59Z","keyType":"RSA","keyBits":2048,"isCa":true},{"subject":"CN=Root YR,O=ISRG,C=US","issuer":"CN=ISRG Root X1,O=Internet Security Research Group,C=US","notBefore":"2026-05-13T00:00:00Z","notAfter":"2032-09-02T23:59:59Z","keyType":"RSA","keyBits":4096,"isCa":true}]},"dnssec":{"result":"insecure","label":"Not signed","name":"perfectclock.cc.","steps":[{"zone":".","outcome":"verified","label":"Verified"},{"zone":"cc.","outcome":"verified","label":"Verified"},{"zone":"perfectclock.cc.","outcome":"insecure_proven","label":"Unsigned (proven)"}]},"auth":{"outcome":"none","label":"No authorisation required","gate":null,"gateLabel":null,"status":200,"authorizationServers":[]},"httpsRedirect":{"outcome":"https_enforced","label":"HTTPS enforced","status":308},"transports":[{"transport":"streamable-http","outcome":"verified","label":"Verified","status":200,"followed":false}],"provenance":null,"installScripts":[],"installScriptsTotal":null,"vulnerabilities":[],"vulnerabilitiesTotal":null,"dependencies":null},"mismatches":[],"changelog":{"trackingSince":"2026-10-25","recent":[{"id":"chg_01a1afbb-cbe2-7e4e-9557-0f9708a493f5","kind":"score.rubric_changed","summary":"We updated how we score, so this day's move reflects our rubric, not a change to the server","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-11-06","url":"https://verifymcp.io/servers/cc-perfectclock-perfect-clock/perfectclock#chg-chg_01a1afbb-cbe2-7e4e-9557-0f9708a493f5"},{"id":"chg_01a1aa96-1f63-75fa-be36-311692071442","kind":"tool.description_changed","summary":"Tool “find_meeting_windows” rewrote its description, which is the text the model 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scored","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-10-25","url":"https://verifymcp.io/servers/cc-perfectclock-perfect-clock/perfectclock#chg-chg_01a1746f-82fa-7b38-acd8-957d62e0efba"}],"truncated":false,"feedUrl":"https://verifymcp.io/servers/cc-perfectclock-perfect-clock/perfectclock/changelog.json"},"links":{"html":"https://verifymcp.io/servers/cc-perfectclock-perfect-clock/perfectclock","markdown":"https://verifymcp.io/servers/cc-perfectclock-perfect-clock/perfectclock.md","changelogJson":"https://verifymcp.io/servers/cc-perfectclock-perfect-clock/perfectclock/changelog.json","changelogRss":"https://verifymcp.io/servers/cc-perfectclock-perfect-clock/perfectclock.xml","external":[{"label":"Remote endpoint","href":"https://perfectclock.cc/mcp"},{"label":"Website","href":"https://perfectclock.cc/"}]}}