Tree Sitter — 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": "mcp-server-tree-sitter",
"source": {
"kind": "package",
"origin": "mcp-server-tree-sitter"
},
"server": {
"name": "mcp-server-tree-sitter"
}
},
"grade": "A",
"score": {
"score": 96,
"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": "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": "moderate",
"reasons": [
"reads sensitive or local data"
],
"tags": [
"sensitive-source"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (26 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 packaging/dev tooling (tests/test_cli_arguments.py)",
"category": "permissions",
"severity": "low",
"confidence": "heuristic",
"description": "In a packaging/dev/install script (shipped, but not the server runtime) (`tests/test_cli_arguments.py:15`): 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": "tests/test_cli_arguments.py"
},
"evidence": "al command result = subprocess.run( [sys.executable, \"-m\", \"mcp_server_tree_sitter\", \"--help\"], capt",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "tests/test_cli_arguments.py",
"line": 15,
"nonRuntime": true
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in packaging/dev tooling (tests/test_makefile_targets.py)",
"category": "permissions",
"severity": "low",
"confidence": "heuristic",
"description": "In a packaging/dev/install script (shipped, but not the server runtime) (`tests/test_makefile_targets.py:52`): 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": "tests/test_makefile_targets.py"
},
"evidence": "there result = subprocess.run( [\"make\", \"mcp-run\", \"ARGS=--help\"], capture_output=True,",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "tests/test_makefile_targets.py",
"line": 52,
"nonRuntime": true
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in packaging/dev tooling (tests/test_smoke.py)",
"category": "permissions",
"severity": "low",
"confidence": "heuristic",
"description": "In a packaging/dev/install script (shipped, but not the server runtime) (`tests/test_smoke.py:28`): 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": "tests/test_smoke.py"
},
"evidence": "cleanly.\"\"\" proc = subprocess.run( [sys.executable, \"-m\", \"mcp_server_tree_sitter.server\", \"--help\"],",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "tests/test_smoke.py",
"line": 28,
"nonRuntime": true
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "configure",
"tags": [],
"reasons": {}
},
{
"tool": "register_project_tool",
"tags": [],
"reasons": {}
},
{
"tool": "list_projects_tool",
"tags": [],
"reasons": {}
},
{
"tool": "remove_project_tool",
"tags": [],
"reasons": {}
},
{
"tool": "list_languages",
"tags": [],
"reasons": {}
},
{
"tool": "check_language_available",
"tags": [],
"reasons": {}
},
{
"tool": "list_files",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"list_files\""
]
}
},
{
"tool": "get_file",
"tags": [],
"reasons": {}
},
{
"tool": "get_file_metadata",
"tags": [],
"reasons": {}
},
{
"tool": "get_ast",
"tags": [],
"reasons": {}
},
{
"tool": "get_node_at_position",
"tags": [],
"reasons": {}
},
{
"tool": "find_text",
"tags": [],
"reasons": {}
},
{
"tool": "run_query",
"tags": [],
"reasons": {}
},
{
"tool": "get_query_template_tool",
"tags": [],
"reasons": {}
},
{
"tool": "list_query_templates_tool",
"tags": [],
"reasons": {}
},
{
"tool": "build_query",
"tags": [],
"reasons": {}
},
{
"tool": "adapt_query",
"tags": [],
"reasons": {}
},
{
"tool": "get_node_types",
"tags": [],
"reasons": {}
},
{
"tool": "get_symbols",
"tags": [],
"reasons": {}
},
{
"tool": "analyze_project",
"tags": [],
"reasons": {}
},
{
"tool": "get_dependencies",
"tags": [],
"reasons": {}
},
{
"tool": "analyze_complexity",
"tags": [],
"reasons": {}
},
{
"tool": "find_similar_code",
"tags": [],
"reasons": {}
},
{
"tool": "find_usage",
"tags": [],
"reasons": {}
},
{
"tool": "clear_cache",
"tags": [],
"reasons": {}
},
{
"tool": "diagnose_config",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "5981e092ef2734c1a365dac766ee4093241244e66c87834c0d114915d9ede579",
"stats": {
"tools": 26,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 0,
"medium": 0,
"low": 3,
"info": 0
}
}
}