TweetSave — the complete, unedited output of the deterministic mcptrustchecker engine v1.9.0, scanned . Every finding, capability tag and score component below is exactly what the engine produced — no AI, no post-processing.
{
"tool": {
"name": "mcptrustchecker",
"version": "1.9.0",
"methodologyVersion": "mcptrustchecker-1.9"
},
"target": {
"id": "https://mcp.tweetsave.org/sse",
"source": {
"kind": "http",
"origin": "https://mcp.tweetsave.org/sse"
},
"server": {
"name": "tweetsave-mcp-server",
"version": "1.0.0"
}
},
"grade": "A",
"score": {
"score": 97,
"threatScore": 100,
"grade": "A",
"band": "A",
"categorySubtotals": {
"injection": 0,
"exfiltration": 0,
"permissions": 0,
"supply-chain": 0,
"network": 0,
"hygiene": 0
},
"vector": [
{
"kind": "client",
"term": "capability-exposure",
"level": "moderate",
"label": "capability blast radius (moderate) — client exposure if the model is manipulated",
"appliedPenalty": 3
},
{
"kind": "client",
"term": "coverage-honesty",
"level": "live",
"label": "inspection depth (live) — how much of the target the scan could see",
"appliedPenalty": 0
}
],
"gatesFired": [],
"methodologyVersion": "mcptrustchecker-1.9"
},
"capability": {
"level": "moderate",
"reasons": [
"ingests untrusted external content (a prompt-injection entry point)",
"can send data / act on an external service"
],
"tags": [
"untrusted-input",
"external-sink"
]
},
"coverage": {
"level": "live",
"inputs": {
"toolSurface": true,
"implementationSource": false,
"packageMetadata": false,
"liveTransport": true
},
"caveats": []
},
"findings": [
{
"ruleId": "MTC-FLOW-005",
"title": "Untrusted input can drive an external action",
"category": "exfiltration",
"severity": "medium",
"confidence": "strong",
"description": "Untrusted-input tools ([tweetsave_get_tweet, tweetsave_get_thread, tweetsave_batch, tweetsave_extract_media]) co-exist with external-action tools ([tweetsave_get_tweet, tweetsave_get_thread, tweetsave_to_blog, tweetsave_batch, tweetsave_extract_media]). A prompt injection could cause unwanted external actions, though no direct sensitive-data leak path was found.",
"remediation": "Require confirmation for state-changing/egress actions triggered after processing untrusted content.",
"location": {
"kind": "flow",
"name": "tweetsave_get_tweet → tweetsave_get_tweet"
},
"evidence": "untrusted [tweetsave_get_tweet, tweetsave_get_thread, tweetsave_batch, tweetsave_extract_media] → sinks [tweetsave_get_tweet, tweetsave_get_thread, tweetsave_to",
"owasp": "LLM06:2025 Excessive Agency",
"references": [],
"data": {
"untrusted": [
"tweetsave_get_tweet",
"tweetsave_get_thread",
"tweetsave_batch",
"tweetsave_extract_media"
],
"sinks": [
"tweetsave_get_tweet",
"tweetsave_get_thread",
"tweetsave_to_blog",
"tweetsave_batch",
"tweetsave_extract_media"
]
}
},
{
"ruleId": "MTC-CAP-007",
"title": "Unconstrained URL/host parameter \"url\" on \"tweetsave_get_tweet\"",
"category": "network",
"severity": "medium",
"confidence": "heuristic",
"description": "Tool \"tweetsave_get_tweet\" takes a URL/host parameter \"url\" with no allowlist/pattern. An outbound-request tool with an unbounded destination enables SSRF and cloud-metadata access (e.g. 169.254.169.254).",
"remediation": "Allowlist destinations or constrain the parameter; block private/link-local addresses server-side.",
"location": {
"kind": "tool",
"name": "tweetsave_get_tweet",
"field": "inputSchema.properties.url"
},
"owasp": "LLM06:2025 Excessive Agency",
"data": {
"param": "url"
}
},
{
"ruleId": "MTC-CAP-007",
"title": "Unconstrained URL/host parameter \"url\" on \"tweetsave_get_thread\"",
"category": "network",
"severity": "medium",
"confidence": "heuristic",
"description": "Tool \"tweetsave_get_thread\" takes a URL/host parameter \"url\" with no allowlist/pattern. An outbound-request tool with an unbounded destination enables SSRF and cloud-metadata access (e.g. 169.254.169.254).",
"remediation": "Allowlist destinations or constrain the parameter; block private/link-local addresses server-side.",
"location": {
"kind": "tool",
"name": "tweetsave_get_thread",
"field": "inputSchema.properties.url"
},
"owasp": "LLM06:2025 Excessive Agency",
"data": {
"param": "url"
}
},
{
"ruleId": "MTC-CAP-007",
"title": "Unconstrained URL/host parameter \"url\" on \"tweetsave_to_blog\"",
"category": "network",
"severity": "medium",
"confidence": "heuristic",
"description": "Tool \"tweetsave_to_blog\" takes a URL/host parameter \"url\" with no allowlist/pattern. An outbound-request tool with an unbounded destination enables SSRF and cloud-metadata access (e.g. 169.254.169.254).",
"remediation": "Allowlist destinations or constrain the parameter; block private/link-local addresses server-side.",
"location": {
"kind": "tool",
"name": "tweetsave_to_blog",
"field": "inputSchema.properties.url"
},
"owasp": "LLM06:2025 Excessive Agency",
"data": {
"param": "url"
}
},
{
"ruleId": "MTC-CAP-007",
"title": "Unconstrained URL/host parameter \"url\" on \"tweetsave_extract_media\"",
"category": "network",
"severity": "medium",
"confidence": "heuristic",
"description": "Tool \"tweetsave_extract_media\" takes a URL/host parameter \"url\" with no allowlist/pattern. An outbound-request tool with an unbounded destination enables SSRF and cloud-metadata access (e.g. 169.254.169.254).",
"remediation": "Allowlist destinations or constrain the parameter; block private/link-local addresses server-side.",
"location": {
"kind": "tool",
"name": "tweetsave_extract_media",
"field": "inputSchema.properties.url"
},
"owasp": "LLM06:2025 Excessive Agency",
"data": {
"param": "url"
}
},
{
"ruleId": "MTC-NET-005",
"title": "Remote HTTP MCP endpoint",
"category": "network",
"severity": "info",
"confidence": "strong",
"description": "Remote endpoint mcp.tweetsave.org. MCP Trust Checker does not test server-side authentication/authorization; verify the endpoint requires auth.",
"location": {
"kind": "transport"
}
}
],
"toxicFlows": [
{
"id": "flow-1",
"severity": "medium",
"confidence": "strong",
"untrustedInput": [
"tweetsave_get_tweet",
"tweetsave_get_thread",
"tweetsave_batch",
"tweetsave_extract_media"
],
"sensitiveSource": [],
"externalSink": [
"tweetsave_get_tweet",
"tweetsave_get_thread",
"tweetsave_to_blog",
"tweetsave_batch",
"tweetsave_extract_media"
],
"selfContained": false,
"description": "Untrusted input can drive an external action even though no sensitive source is exposed."
}
],
"capabilities": [
{
"tool": "tweetsave_get_tweet",
"tags": [
"untrusted-input",
"external-sink"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
],
"external-sink": [
"keyword \"tweet\""
]
}
},
{
"tool": "tweetsave_get_thread",
"tags": [
"untrusted-input",
"external-sink"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
],
"external-sink": [
"keyword \"tweet\""
]
}
},
{
"tool": "tweetsave_to_blog",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"tweet\""
]
}
},
{
"tool": "tweetsave_batch",
"tags": [
"untrusted-input",
"external-sink"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
],
"external-sink": [
"keyword \"tweet\""
]
}
},
{
"tool": "tweetsave_extract_media",
"tags": [
"untrusted-input",
"external-sink"
],
"reasons": {
"untrusted-input": [
"keyword \"download\""
],
"external-sink": [
"keyword \"tweet\""
]
}
}
],
"surfaceDigest": "389a13fc491e3f296647c8f425cd08c31aecb29747cc215a43b25f937523c084",
"stats": {
"tools": 5,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 0,
"medium": 5,
"low": 0,
"info": 1
}
}
}