Symbols — 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": "symbols-mcp",
"source": {
"kind": "package",
"origin": "symbols-mcp"
},
"server": {
"name": "symbols-mcp"
}
},
"grade": "A",
"score": {
"score": 92,
"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": "high",
"label": "capability blast radius (high) — client exposure if the model is manipulated",
"appliedPenalty": 6
},
{
"kind": "client",
"term": "verification-discount",
"level": "none",
"label": "publisher verification (unlinked) — no provenance/repo link, but the shipped source was fully read",
"appliedPenalty": 2
},
{
"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": "high",
"reasons": [
"ingests untrusted external content (a prompt-injection entry point)",
"reads sensitive or local data",
"has a read → egress path (a data-exfiltration surface)",
"can execute shell commands or code"
],
"tags": [
"untrusted-input",
"sensitive-source",
"code-exec"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (28 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-SRC-002",
"title": "Shell/command execution in server code (bin/symbols-audit.cjs)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`bin/symbols-audit.cjs:29`): 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": "bin/symbols-audit.cjs"
},
"evidence": "nSync } = require('node:child_process') const FRANK_AUDIT_BIN = process.env.FRANK_AUDIT_BIN || 'frank-audit' const arg",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "bin/symbols-audit.cjs",
"line": 29,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (bin/symbols-mcp-init-rules.cjs)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`bin/symbols-mcp-init-rules.cjs:76`): 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": "bin/symbols-mcp-init-rules.cjs"
},
"evidence": "cSync } = require('node:child_process') execSync(process.platform === 'win32' ? `where ${name}` : `command -v ${name",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "bin/symbols-mcp-init-rules.cjs",
"line": 76,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (bin/symbols-mcp.cjs)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`bin/symbols-mcp.cjs:34`): 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": "bin/symbols-mcp.cjs"
},
"evidence": "result = require('node:child_process').spawnSync('node', [target, ...argv.slice(1)], { stdio: 'inherit' }) process.ex",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "bin/symbols-mcp.cjs",
"line": 34,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (lib/audit.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`lib/audit.js:31`): 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": "lib/audit.js"
},
"evidence": "nSync } = require('node:child_process') const FRANK_AUDIT_BIN = process.env.FRANK_AUDIT_BIN || 'frank-audit' const FRAN",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "lib/audit.js",
"line": 31,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (symbols_mcp/server.py)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`symbols_mcp/server.py:42`): 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": "symbols_mcp/server.py"
},
"evidence": "try: result = subprocess.run( cmd, input=stdin_data, capture_output=True,",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "symbols_mcp/server.py",
"line": 42,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SUP-012",
"title": "Package has no license",
"category": "hygiene",
"severity": "info",
"confidence": "strong",
"description": "\"symbols-mcp\" has no declared license. This is a legal/reuse concern, not a security finding.",
"location": {
"kind": "package",
"name": "symbols-mcp"
}
},
{
"ruleId": "MTC-SUP-011",
"title": "Package declares no source repository",
"category": "supply-chain",
"severity": "info",
"confidence": "strong",
"description": "\"symbols-mcp\" declares no repository URL, so its published artifact cannot be compared against reviewable source.",
"remediation": "Prefer packages that link to public, reviewable source.",
"location": {
"kind": "package",
"name": "symbols-mcp"
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "get_project_rules",
"tags": [],
"reasons": {}
},
{
"tool": "search_symbols_docs",
"tags": [],
"reasons": {}
},
{
"tool": "generate_component",
"tags": [],
"reasons": {}
},
{
"tool": "generate_page",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
]
}
},
{
"tool": "convert_react",
"tags": [],
"reasons": {}
},
{
"tool": "convert_html",
"tags": [],
"reasons": {}
},
{
"tool": "audit_component",
"tags": [
"untrusted-input",
"sensitive-source"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
],
"sensitive-source": [
"keyword \"dump\""
]
}
},
{
"tool": "audit_and_fix_frankability",
"tags": [],
"reasons": {}
},
{
"tool": "prescribe_frankability_fixes",
"tags": [],
"reasons": {}
},
{
"tool": "apply_frankability_edit_ops",
"tags": [],
"reasons": {}
},
{
"tool": "verify_frankability",
"tags": [],
"reasons": {}
},
{
"tool": "rollback_frankability",
"tags": [],
"reasons": {}
},
{
"tool": "snapshots_frankability",
"tags": [],
"reasons": {}
},
{
"tool": "frankability_log",
"tags": [],
"reasons": {}
},
{
"tool": "explain_frankability_rule",
"tags": [],
"reasons": {}
},
{
"tool": "get_cli_reference",
"tags": [],
"reasons": {}
},
{
"tool": "get_sdk_reference",
"tags": [],
"reasons": {}
},
{
"tool": "audit_project",
"tags": [],
"reasons": {}
},
{
"tool": "convert_to_json",
"tags": [],
"reasons": {}
},
{
"tool": "detect_environment",
"tags": [],
"reasons": {}
},
{
"tool": "get_project_context",
"tags": [],
"reasons": {}
},
{
"tool": "login",
"tags": [],
"reasons": {}
},
{
"tool": "list_projects",
"tags": [],
"reasons": {}
},
{
"tool": "create_project",
"tags": [],
"reasons": {}
},
{
"tool": "get_project",
"tags": [],
"reasons": {}
},
{
"tool": "save_to_project",
"tags": [],
"reasons": {}
},
{
"tool": "publish",
"tags": [],
"reasons": {}
},
{
"tool": "push",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "3edc8e95aed5736e58d03c4ae33c9df191ddee737ef0ccf09416e3b0cd19e7db",
"stats": {
"tools": 28,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 5,
"medium": 0,
"low": 0,
"info": 2
}
}
}