Sequential Thinking — the complete, unedited output of the deterministic mcptrustchecker engine v1.13.0, scanned . Every finding, capability tag and score component below is exactly what the engine produced — no AI, no post-processing.
{
"tool": {
"name": "mcptrustchecker",
"version": "1.13.0",
"methodologyVersion": "mcptrustchecker-1.13"
},
"target": {
"id": "@gotza02/sequential-thinking",
"source": {
"kind": "package",
"origin": "@gotza02/sequential-thinking"
},
"server": {
"name": "@gotza02/sequential-thinking"
}
},
"grade": "B",
"score": {
"score": 89,
"threatScore": 100,
"grade": "B",
"band": "B",
"categorySubtotals": {
"injection": 0,
"exfiltration": 0,
"permissions": 0,
"supply-chain": 0,
"network": 0,
"hygiene": 0
},
"vector": [
{
"kind": "client",
"term": "capability-exposure",
"level": "critical",
"label": "capability blast radius (critical) — client exposure if the model is manipulated",
"appliedPenalty": 10
},
{
"kind": "client",
"term": "verification-discount",
"level": "repo",
"label": "publisher verification (public source) — no provenance, but the source is public and inspectable",
"appliedPenalty": 1
},
{
"kind": "client",
"term": "coverage-honesty",
"level": "source",
"label": "inspection depth (source) — how much of the target the scan could see",
"appliedPenalty": 0
}
],
"gatesFired": [],
"methodologyVersion": "mcptrustchecker-1.13"
},
"capability": {
"level": "critical",
"reasons": [
"ingests untrusted external content (a prompt-injection entry point)",
"can send data / act on an external service",
"can create, modify or delete files",
"reads sensitive or local data",
"has a read → egress path (a data-exfiltration surface)",
"can execute shell commands or code",
"untrusted-input, sensitive-source and egress co-exist across tools (toxic-flow surface)",
"untrusted input can reach code execution"
],
"tags": [
"code-exec",
"sensitive-source",
"file-write",
"untrusted-input",
"external-sink"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (71 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command \"npx -y <package>\"."
]
},
"findings": [
{
"ruleId": "MTC-FLOW-002",
"title": "Completed toxic-flow trifecta across tools",
"category": "exfiltration",
"severity": "critical",
"confidence": "strong",
"description": "This server (without client built-ins) exposes a complete data-exfiltration chain: analyze_football_match_v2 → list_directory → fetch. Untrusted input is ingested, private data is read, and it can be sent to an external sink via the agent composing the tools (→). Static analysis proves the primitive exists, not that a specific run will occur.",
"remediation": "Remove one leg of the trifecta: isolate untrusted-input tools from secret-reading tools and from egress tools, or require human approval between them.",
"location": {
"kind": "flow",
"name": "analyze_football_match_v2 → list_directory → fetch"
},
"owasp": "LLM02:2025 Sensitive Information Disclosure",
"references": [],
"data": {
"untrusted": [
"analyze_football_match_v2",
"web_search",
"fetch"
],
"sources": [
"read_file",
"list_directory"
],
"sinks": [
"shell_execute",
"fetch"
],
"path": [
"analyze_football_match_v2",
"list_directory",
"fetch"
],
"edges": [
{
"from": "analyze_football_match_v2",
"to": "list_directory",
"kind": "agent-mediated"
},
{
"from": "list_directory",
"to": "fetch",
"kind": "agent-mediated"
}
],
"wired": false
}
},
{
"ruleId": "MTC-CAP-001",
"title": "Tool \"shell_execute\" exposes command/code execution",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "Tool \"shell_execute\" appears to run shell commands or evaluate code (keyword \"shell\" in tool name). Arbitrary execution driven by model input is one of the most dangerous MCP capabilities; combined with any untrusted input it becomes RCE.",
"remediation": "Sandbox execution, allowlist commands/arguments, and never pass model output to a shell unescaped.",
"location": {
"kind": "tool",
"name": "shell_execute"
},
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"tags": [
"code-exec"
]
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (dist/intelligent-code.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`dist/intelligent-code.js:7`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.",
"remediation": "Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.",
"location": {
"kind": "server",
"name": "dist/intelligent-code.js"
},
"evidence": "; import { exec } from 'child_process'; import { promisify } from 'util'; import ts from 'typescript'; import { validate",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "dist/intelligent-code.js",
"line": 7,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (dist/tools/coding.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`dist/tools/coding.js:5`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.",
"remediation": "Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.",
"location": {
"kind": "server",
"name": "dist/tools/coding.js"
},
"evidence": "; import { exec } from 'child_process'; import { promisify } from 'util'; const execAsync = promisify(exec); export func",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "dist/tools/coding.js",
"line": 5,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (dist/utils.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`dist/utils.js:1`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.",
"remediation": "Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.",
"location": {
"kind": "server",
"name": "dist/utils.js"
},
"evidence": "rt { spawn } from 'node:child_process'; import * as path from 'node:path'; import * as fs from 'node:fs'; import * as dn",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "dist/utils.js",
"line": 1,
"nonRuntime": false
}
},
{
"ruleId": "MTC-CAP-002",
"title": "Tool \"write_file\" can modify the filesystem",
"category": "permissions",
"severity": "medium",
"confidence": "strong",
"description": "Tool \"write_file\" can write, overwrite or delete files (keyword \"write_file\" in tool name). Verify it is scoped to a safe directory.",
"remediation": "Constrain file operations to an explicit, non-sensitive root; reject path traversal.",
"location": {
"kind": "tool",
"name": "write_file"
},
"data": {
"tags": [
"file-write"
]
}
},
{
"ruleId": "MTC-CAP-002",
"title": "Tool \"edit_file\" can modify the filesystem",
"category": "permissions",
"severity": "medium",
"confidence": "strong",
"description": "Tool \"edit_file\" can write, overwrite or delete files (keyword \"edit_file\" in tool name). Verify it is scoped to a safe directory.",
"remediation": "Constrain file operations to an explicit, non-sensitive root; reject path traversal.",
"location": {
"kind": "tool",
"name": "edit_file"
},
"data": {
"tags": [
"file-write"
]
}
},
{
"ruleId": "MTC-CAP-005",
"title": "Mutating tool \"shell_execute\" declares no destructiveHint",
"category": "hygiene",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"shell_execute\" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.",
"remediation": "Declare accurate annotations, and gate destructive tools on user confirmation regardless.",
"location": {
"kind": "tool",
"name": "shell_execute"
},
"data": {
"tags": [
"code-exec"
]
}
},
{
"ruleId": "MTC-CAP-005",
"title": "Mutating tool \"write_file\" declares no destructiveHint",
"category": "hygiene",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"write_file\" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.",
"remediation": "Declare accurate annotations, and gate destructive tools on user confirmation regardless.",
"location": {
"kind": "tool",
"name": "write_file"
},
"data": {
"tags": [
"file-write"
]
}
},
{
"ruleId": "MTC-CAP-005",
"title": "Mutating tool \"edit_file\" declares no destructiveHint",
"category": "hygiene",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"edit_file\" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.",
"remediation": "Declare accurate annotations, and gate destructive tools on user confirmation regardless.",
"location": {
"kind": "tool",
"name": "edit_file"
},
"data": {
"tags": [
"file-write"
]
}
}
],
"toxicFlows": [
{
"id": "flow-1",
"severity": "critical",
"confidence": "strong",
"untrustedInput": [
"analyze_football_match_v2",
"web_search",
"fetch"
],
"sensitiveSource": [
"read_file",
"list_directory"
],
"externalSink": [
"shell_execute",
"fetch"
],
"selfContained": false,
"path": [
"analyze_football_match_v2",
"list_directory",
"fetch"
],
"pathWired": false,
"description": "A cross-tool exfiltration chain exists: analyze_football_match_v2 → list_directory → fetch."
}
],
"capabilities": [
{
"tool": "add_code_snippet",
"tags": [],
"reasons": {}
},
{
"tool": "search_code_db",
"tags": [],
"reasons": {}
},
{
"tool": "learn_architecture_pattern",
"tags": [],
"reasons": {}
},
{
"tool": "deep_code_analyze",
"tags": [],
"reasons": {}
},
{
"tool": "deep_code_edit",
"tags": [],
"reasons": {}
},
{
"tool": "shell_execute",
"tags": [
"code-exec"
],
"reasons": {
"code-exec": [
"keyword \"shell\" in tool name"
]
}
},
{
"tool": "read_file",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"read_file\""
]
}
},
{
"tool": "write_file",
"tags": [
"file-write"
],
"reasons": {
"file-write": [
"keyword \"write_file\" in tool name"
]
}
},
{
"tool": "search_code",
"tags": [],
"reasons": {}
},
{
"tool": "edit_file",
"tags": [
"file-write"
],
"reasons": {
"file-write": [
"keyword \"edit_file\" in tool name"
]
}
},
{
"tool": "list_directory",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"list_files\""
]
}
},
{
"tool": "file_exists",
"tags": [],
"reasons": {}
},
{
"tool": "build_project_graph",
"tags": [],
"reasons": {}
},
{
"tool": "force_rebuild_graph",
"tags": [],
"reasons": {}
},
{
"tool": "get_file_relationships",
"tags": [],
"reasons": {}
},
{
"tool": "get_project_graph_summary",
"tags": [],
"reasons": {}
},
{
"tool": "get_project_graph_visualization",
"tags": [],
"reasons": {}
},
{
"tool": "ask_human",
"tags": [],
"reasons": {}
},
{
"tool": "respond_to_human",
"tags": [],
"reasons": {}
},
{
"tool": "get_pending_questions",
"tags": [],
"reasons": {}
},
{
"tool": "get_interaction_history",
"tags": [],
"reasons": {}
},
{
"tool": "clear_old_interactions",
"tags": [],
"reasons": {}
},
{
"tool": "intelligent_code_analyze",
"tags": [],
"reasons": {}
},
{
"tool": "intelligent_impact_analysis",
"tags": [],
"reasons": {}
},
{
"tool": "intelligent_semantic_search",
"tags": [],
"reasons": {}
},
{
"tool": "intelligent_refactor_suggest",
"tags": [],
"reasons": {}
},
{
"tool": "intelligent_code_compare",
"tags": [],
"reasons": {}
},
{
"tool": "intelligent_code_autofix",
"tags": [],
"reasons": {}
},
{
"tool": "add_knowledge_entity",
"tags": [],
"reasons": {}
},
{
"tool": "link_knowledge_nodes",
"tags": [],
"reasons": {}
},
{
"tool": "query_knowledge_graph",
"tags": [],
"reasons": {}
},
{
"tool": "delete_knowledge_entity",
"tags": [],
"reasons": {}
},
{
"tool": "manage_notes",
"tags": [],
"reasons": {}
},
{
"tool": "analyze_football_match",
"tags": [],
"reasons": {}
},
{
"tool": "odds_comparison",
"tags": [],
"reasons": {}
},
{
"tool": "value_bet_calculator",
"tags": [],
"reasons": {}
},
{
"tool": "odds_converter",
"tags": [],
"reasons": {}
},
{
"tool": "probability_calculator",
"tags": [],
"reasons": {}
},
{
"tool": "get_league_standings_v2",
"tags": [],
"reasons": {}
},
{
"tool": "get_top_scorers_v2",
"tags": [],
"reasons": {}
},
{
"tool": "get_league_fixtures",
"tags": [],
"reasons": {}
},
{
"tool": "watchlist_add",
"tags": [],
"reasons": {}
},
{
"tool": "watchlist_list",
"tags": [],
"reasons": {}
},
{
"tool": "watchlist_remove",
"tags": [],
"reasons": {}
},
{
"tool": "watchlist_clear",
"tags": [],
"reasons": {}
},
{
"tool": "check_alerts",
"tags": [],
"reasons": {}
},
{
"tool": "transfer_news",
"tags": [],
"reasons": {}
},
{
"tool": "analyze_football_match_v2",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"web_search\""
]
}
},
{
"tool": "analyze_football_match_structured",
"tags": [],
"reasons": {}
},
{
"tool": "get_live_scores",
"tags": [],
"reasons": {}
},
{
"tool": "get_match_details",
"tags": [],
"reasons": {}
},
{
"tool": "player_analysis",
"tags": [],
"reasons": {}
},
{
"tool": "tactical_breakdown",
"tags": [],
"reasons": {}
},
{
"tool": "referee_profile",
"tags": [],
"reasons": {}
},
{
"tool": "compare_teams",
"tags": [],
"reasons": {}
},
{
"tool": "get_league_standings",
"tags": [],
"reasons": {}
},
{
"tool": "get_team_info",
"tags": [],
"reasons": {}
},
{
"tool": "get_top_scorers",
"tags": [],
"reasons": {}
},
{
"tool": "track_prediction",
"tags": [],
"reasons": {}
},
{
"tool": "resolve_prediction",
"tags": [],
"reasons": {}
},
{
"tool": "analyze_roi",
"tags": [],
"reasons": {}
},
{
"tool": "get_pending_predictions",
"tags": [],
"reasons": {}
},
{
"tool": "sequentialthinking",
"tags": [],
"reasons": {}
},
{
"tool": "clear_thought_history",
"tags": [],
"reasons": {}
},
{
"tool": "summarize_history",
"tags": [],
"reasons": {}
},
{
"tool": "search_thoughts",
"tags": [],
"reasons": {}
},
{
"tool": "start_thinking_block",
"tags": [],
"reasons": {}
},
{
"tool": "get_thinking_blocks",
"tags": [],
"reasons": {}
},
{
"tool": "web_search",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"web_search\""
]
}
},
{
"tool": "fetch",
"tags": [
"untrusted-input",
"external-sink"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
],
"external-sink": [
"keyword \"http_request\""
]
}
},
{
"tool": "read_webpage",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "8b336be094efa7369fc50529351f574e19827e2f4ff58749cc2ba4d5eacc4b50",
"stats": {
"tools": 71,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 1,
"high": 4,
"medium": 2,
"low": 3,
"info": 0
}
}
}