MCP-Server
SiteGuardian
io.github.gweber/siteguardian
Was dieses MCP kann
Scans and monitors websites for security issues, configuration drift, and compliance-related findings, with remediation guidance.
Funktionen
Tools
5
Tools
get_domain_status
Returns the current security grade (AâF), last-scan timestamp, and list of active issues for a domain that is ALREADY under SiteGuardian monitoring by the authenticated account. Each issue carries a stable id, a severity, a short title, and an impact description. The response also includes a relative dashboard URL.
Use this when the user asks about the current state of a specific monitored domain, wants to confirm a recent change landed, or needs issue ids to call get_fix_recommendations with a specific issue_id.
Do NOT use this for domains not yet under monitoring â it will return a domain_not_monitored error; call scan_domain for one-off checks instead. Compliance framework tags (NIS2 / GDPR / DORA) are NOT included in v1; framework tagging on the monitored-domain path is tracked as a follow-up. Requires a valid API key.
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Idempotent
Eingabeschema
{'type': 'object', 'required': ['domain'], 'properties': {'domain': {'type': 'string'}}, 'additionalProperties': False}
Ausgabeschema
{'type': 'object', 'required': ['domain', 'active_issues', 'dashboard_url'], 'properties': {'grade': {'anyOf': [{'enum': ['A', 'B', 'C', 'D', 'F'], 'type': 'string'}, {'type': 'null'}], 'default': None}, 'domain': {'type': 'string'}, 'last_scan_at': {'anyOf': [{'type': 'string', 'format': 'date-time'}, {'type': 'null'}], 'default': None}, 'active_issues': {'type': 'array', 'items': {'type': 'object', 'required': ['id', 'code', 'severity', 'title'], 'properties': {'id': {'type': 'string', 'description': 'Stable 12-char hex id; use as the issue_id argument to get_fix_recommendations.'}, 'code': {'type': 'string', 'description': "Raw stable code (e.g. 'headers.sri_missing') â\x80\x94 survives i18n translation."}, 'title': {'type': 'string', 'description': 'Short user-facing title, localised.'}, 'impact': {'anyOf': [{'type': 'string'}, {'type': 'null'}], 'default': None, 'description': 'One-sentence explanation of why it matters.'}, 'category': {'anyOf': [{'enum': ['website', 'email', 'dns', 'server', 'uncategorized'], 'type': 'string'}, {'type': 'null'}], 'default': None, 'description': 'Which product area this issue belongs to.'}, 'severity': {'enum': ['critical', 'high', 'medium', 'low', 'info'], 'type': 'string'}}, 'description': "One security issue surfaced by a tool's output.\n\nCanonical shape used by ``scan_domain`` and ``get_domain_status``.\nThe ``id`` is stable across calls and locales â\x80\x94 derived from the\nissue's stable ``code`` (see recommendation_view.py, P1 + P4)."}}, 'dashboard_url': {'type': 'string'}}}
get_drift_events
Returns recent configuration drift events for a domain under monitoring by the authenticated account â TLS changes, DNSSEC state changes, new or removed security headers, shifts in third-party JS hosts, new cookies. Each event carries its observed-at timestamp, a kind (tls/dnssec/cookies/js_hosts/headers), a severity classified centrally (high for tls/dnssec/headers, medium for cookies/js_hosts, otherwise low), a short summary, and a sanitised detail payload.
Use this when the user asks 'what changed' on a domain, wants to audit recent posture shifts, or is diagnosing an unexpected issue. Pair it with get_domain_status to see the current state and get_drift_events to see how it got there.
Do NOT use this for a domain that is not under monitoring â you'll get a domain_not_monitored error; monitoring has to be active for the drift history to accumulate. Optional since (ISO-8601) and limit (1..100) params narrow the window. Requires a valid API key.
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Idempotent
Eingabeschema
{'type': 'object', 'required': ['domain'], 'properties': {'limit': {'type': 'integer', 'default': 20}, 'since': {'anyOf': [{'type': 'string', 'format': 'date-time'}, {'type': 'null'}], 'default': None}, 'domain': {'type': 'string'}}, 'additionalProperties': False}
Ausgabeschema
{'type': 'object', 'required': ['domain', 'events'], 'properties': {'domain': {'type': 'string'}, 'events': {'type': 'array', 'items': {'type': 'object', 'required': ['observed_at', 'kind', 'severity', 'summary', 'detail'], 'properties': {'kind': {'enum': ['tls', 'dnssec', 'cookies', 'js_hosts', 'headers'], 'type': 'string'}, 'detail': {'type': 'object', 'description': 'Sanitized payload excerpt; fields vary by kind.', 'additionalProperties': True}, 'summary': {'type': 'string', 'description': 'Short human-readable summary of what changed.'}, 'severity': {'enum': ['critical', 'high', 'medium', 'low', 'info'], 'type': 'string', 'description': 'Classified by app/services/drift_severity.py â\x80\x94 shared with future consumers.'}, 'observed_at': {'type': 'string', 'format': 'date-time'}}}}}}
get_fix_recommendations
Returns copy-paste-ready fix recommendations (nginx, Apache, DNS, shell) for the issues found on a domain the caller has already paid for â either an active Monitor/Compliance subscription covering the domain, OR a purchased one-off Report for the domain. Each recommendation carries a stable issue_id, a priority (high/medium/low), a title, prose instructions, one or more config snippets with the target domain already interpolated, a verify command, and a category tag.
Use this when the user asks how to fix an issue, wants the exact config to apply, or needs to verify a fix worked. Pass the optional issue_id to scope the response to one specific finding. The response is read-only â this tool NEVER triggers a fresh scan; fixes are computed from the most recent stored scan (including the Report-included re-scan if that was used).
Do NOT use this for domains the caller hasn't purchased coverage for â you'll get an upgrade_required error that links to the pricing page. Do NOT use this to run or trigger a scan; call scan_domain for anonymous checks. Requires a valid API key.
Nur Lesen
Idempotent
Eingabeschema
{'type': 'object', 'required': ['domain'], 'properties': {'domain': {'type': 'string'}, 'issue_id': {'anyOf': [{'type': 'string'}, {'type': 'null'}], 'default': None}}, 'additionalProperties': False}
Ausgabeschema
{'type': 'object', 'required': ['domain', 'source', 'scanned_at', 'recommendations'], 'properties': {'domain': {'type': 'string'}, 'source': {'enum': ['monitor', 'report'], 'type': 'string', 'description': "Which purchased product backed this response â\x80\x94 'monitor' for a subscription, 'report' for a one-off Report."}, 'scanned_at': {'type': 'string', 'format': 'date-time', 'description': 'Timestamp of the underlying scan the fixes were computed from.'}, 'recommendations': {'type': 'array', 'items': {'type': 'object', 'required': ['issue_id', 'code', 'title', 'priority', 'instructions', 'snippets', 'category'], 'properties': {'code': {'type': 'string'}, 'title': {'type': 'string'}, 'category': {'enum': ['website', 'email', 'dns', 'server', 'uncategorized'], 'type': 'string'}, 'issue_id': {'type': 'string'}, 'priority': {'enum': ['high', 'medium', 'low'], 'type': 'string'}, 'snippets': {'type': 'array', 'items': {'type': 'object', 'required': ['platform', 'code'], 'properties': {'code': {'type': 'string', 'description': 'Copy-paste-ready config/command with {domain} interpolated.'}, 'verify': {'anyOf': [{'type': 'string'}, {'type': 'null'}], 'default': None}, 'platform': {'enum': ['nginx', 'apache', 'dns', 'shell', 'other'], 'type': 'string'}}}}, 'instructions': {'type': 'string'}}}, 'description': 'Priority-sorted list of actionable fixes.'}}}
list_monitored_domains
Returns the full list of domains under continuous SiteGuardian monitoring for the authenticated account. Each entry includes the domain, current security grade (AâF), timestamp of the last completed scan, and a relative dashboard URL.
Use this when the user asks what they are monitoring, wants an inventory summary, or needs to look up a specific domain's exact spelling before calling get_domain_status / get_drift_events / get_fix_recommendations. The list is scoped entirely by the API key â there is no filter parameter to widen or narrow the result.
Do NOT use this to enumerate domains the user does not own or monitor â it only returns their own inventory. Do NOT call it to trigger a scan (it does not); use scan_domain for one-off checks. Requires a valid API key.
Nur Lesen
Idempotent
Eingabeschema
{'type': 'object', 'properties': {}, 'additionalProperties': False}
Ausgabeschema
{'type': 'object', 'required': ['domains'], 'properties': {'domains': {'type': 'array', 'items': {'type': 'object', 'required': ['domain', 'dashboard_url'], 'properties': {'grade': {'anyOf': [{'enum': ['A', 'B', 'C', 'D', 'F'], 'type': 'string'}, {'type': 'null'}], 'default': None}, 'domain': {'type': 'string'}, 'last_scan_at': {'anyOf': [{'type': 'string', 'format': 'date-time'}, {'type': 'null'}], 'default': None}, 'dashboard_url': {'type': 'string', 'description': 'Relative URL to the monitor detail page.'}}}}}}
scan_domain
Runs a free one-off security scan of the given domain and returns its grade (AâF), scan timestamp, and up to three top-priority issues with a permalink to the full report on siteguardian.io.
Use this when the user asks for a quick security check of a domain that is NOT yet under SiteGuardian monitoring, or when they want a fresh assessment before subscribing. Results are cached for two hours, so repeated calls about the same domain return the same snapshot and mark it with cached=True.
Do NOT use this for domains already under monitoring by the user â call get_domain_status instead for the account-scoped view with framework tags. Do NOT use this to batch-scan many domains as a competitive-intelligence tool; per-source-IP and per-target rate limits bound usage. This tool does not require authentication.
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Externer Zugriff
Idempotent
Eingabeschema
{'type': 'object', 'required': ['domain'], 'properties': {'domain': {'type': 'string'}}, 'additionalProperties': False}
Ausgabeschema
{'type': 'object', 'required': ['domain', 'grade', 'score', 'scanned_at', 'cached', 'top_issues', 'report_url'], 'properties': {'grade': {'enum': ['A', 'B', 'C', 'D', 'F'], 'type': 'string'}, 'score': {'type': 'integer', 'maximum': 100, 'minimum': 0}, 'cached': {'type': 'boolean', 'description': 'True when the result was served from the 2-hour ScanLog cache.'}, 'domain': {'type': 'string'}, 'report_url': {'type': 'string', 'description': 'Permalink to the full scan report on siteguardian.io.'}, 'scanned_at': {'type': 'string', 'format': 'date-time'}, 'top_issues': {'type': 'array', 'items': {'type': 'object', 'required': ['id', 'code', 'severity', 'title'], 'properties': {'id': {'type': 'string', 'description': 'Stable 12-char hex id; use as the issue_id argument to get_fix_recommendations.'}, 'code': {'type': 'string', 'description': "Raw stable code (e.g. 'headers.sri_missing') â\x80\x94 survives i18n translation."}, 'title': {'type': 'string', 'description': 'Short user-facing title, localised.'}, 'impact': {'anyOf': [{'type': 'string'}, {'type': 'null'}], 'default': None, 'description': 'One-sentence explanation of why it matters.'}, 'category': {'anyOf': [{'enum': ['website', 'email', 'dns', 'server', 'uncategorized'], 'type': 'string'}, {'type': 'null'}], 'default': None, 'description': 'Which product area this issue belongs to.'}, 'severity': {'enum': ['critical', 'high', 'medium', 'low', 'info'], 'type': 'string'}}, 'description': "One security issue surfaced by a tool's output.\n\nCanonical shape used by ``scan_domain`` and ``get_domain_status``.\nThe ``id`` is stable across calls and locales â\x80\x94 derived from the\nissue's stable ``code`` (see recommendation_view.py, P1 + P4)."}, 'description': 'Up to 3 top-priority issues found. Sorted high â\x86\x92 medium â\x86\x92 low.'}}}
Verlauf
Letzte Tool-Änderungen
Hinzugefügt
get_fix_recommendations
17. September 2026 12:42
Hinzugefügt
get_drift_events
17. September 2026 12:42
Hinzugefügt
get_domain_status
17. September 2026 12:42
Hinzugefügt
list_monitored_domains
17. September 2026 12:42
Hinzugefügt
scan_domain
17. September 2026 12:42
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