Taskchampion — 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": "taskchampion-mcp",
"source": {
"kind": "package",
"origin": "taskchampion-mcp"
},
"server": {
"name": "taskchampion-mcp"
}
},
"grade": "A",
"score": {
"score": 93,
"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": "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": "high",
"reasons": [
"reads sensitive or local data",
"has a read → egress path (a data-exfiltration surface)",
"can execute shell commands or code"
],
"tags": [
"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 (35 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 (src/taskchampion_mcp/cli.py)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`src/taskchampion_mcp/cli.py:65`): 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": "src/taskchampion_mcp/cli.py"
},
"evidence": "th argument list (never shell=True). This is the ONLY place subprocess is invoked in the entire codebase. \"\"\"",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "src/taskchampion_mcp/cli.py",
"line": 65,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SUP-012",
"title": "Package has no license",
"category": "hygiene",
"severity": "info",
"confidence": "strong",
"description": "\"taskchampion-mcp\" has no declared license. This is a legal/reuse concern, not a security finding.",
"location": {
"kind": "package",
"name": "taskchampion-mcp"
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "get_initialization_status",
"tags": [],
"reasons": {}
},
{
"tool": "propose_initialization_options",
"tags": [],
"reasons": {}
},
{
"tool": "analyze_existing_tasks_for_schema",
"tags": [],
"reasons": {}
},
{
"tool": "analyze_taxonomy_file",
"tags": [],
"reasons": {}
},
{
"tool": "generate_initial_schema_preview",
"tags": [],
"reasons": {}
},
{
"tool": "save_initial_schema",
"tags": [],
"reasons": {}
},
{
"tool": "list_preset_schemas",
"tags": [],
"reasons": {}
},
{
"tool": "use_preset_schema",
"tags": [],
"reasons": {}
},
{
"tool": "list_tasks",
"tags": [],
"reasons": {}
},
{
"tool": "get_task",
"tags": [],
"reasons": {}
},
{
"tool": "search_tasks",
"tags": [],
"reasons": {}
},
{
"tool": "annotate_task",
"tags": [],
"reasons": {}
},
{
"tool": "modify_task",
"tags": [],
"reasons": {}
},
{
"tool": "start_task",
"tags": [],
"reasons": {}
},
{
"tool": "stop_task",
"tags": [],
"reasons": {}
},
{
"tool": "get_projects",
"tags": [],
"reasons": {}
},
{
"tool": "get_tags",
"tags": [],
"reasons": {}
},
{
"tool": "get_active_context",
"tags": [],
"reasons": {}
},
{
"tool": "get_schema_info",
"tags": [],
"reasons": {}
},
{
"tool": "get_task_report",
"tags": [],
"reasons": {}
},
{
"tool": "get_time_summary",
"tags": [],
"reasons": {}
},
{
"tool": "get_time_status",
"tags": [],
"reasons": {}
},
{
"tool": "set_active_schema",
"tags": [],
"reasons": {}
},
{
"tool": "set_taxonomy_path",
"tags": [],
"reasons": {}
},
{
"tool": "set_role",
"tags": [],
"reasons": {}
},
{
"tool": "create_task",
"tags": [],
"reasons": {}
},
{
"tool": "create_subtask",
"tags": [],
"reasons": {}
},
{
"tool": "batch_create_tasks",
"tags": [],
"reasons": {}
},
{
"tool": "complete_task",
"tags": [],
"reasons": {}
},
{
"tool": "delete_task",
"tags": [],
"reasons": {}
},
{
"tool": "undo_last_action",
"tags": [],
"reasons": {}
},
{
"tool": "sync_tasks",
"tags": [],
"reasons": {}
},
{
"tool": "bulk_modify",
"tags": [],
"reasons": {}
},
{
"tool": "reload_configuration",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"read_config\""
]
}
},
{
"tool": "get_runtime_capabilities",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "cd23e77f2297bc89db178229641e1d869c85d7651ea8fdf707342013cf0b0a28",
"stats": {
"tools": 35,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 1,
"medium": 0,
"low": 0,
"info": 1
}
}
}