Specter Skills — 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": "specter-skills",
"source": {
"kind": "package",
"origin": "specter-skills"
},
"server": {
"name": "specter-skills"
}
},
"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": [
"can execute shell commands or code"
],
"tags": [
"code-exec"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (25 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/cli.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`bin/cli.js:21`): 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/cli.js"
},
"evidence": "spawnSync } = require('child_process'); const PKG_ROOT = path.dirname(__dirname); const SKILLS_SRC = path.join(PKG_ROO",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "bin/cli.js",
"line": 21,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (mcp/src/auth.mjs)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`mcp/src/auth.mjs:12`): 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": "mcp/src/auth.mjs"
},
"evidence": "rt { spawn } from 'node:child_process'; import { readFileSync, writeFileSync, mkdirSync, chmodSync } from 'node:fs'; imp",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "mcp/src/auth.mjs",
"line": 12,
"nonRuntime": false
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "specter_verify_setup",
"tags": [],
"reasons": {}
},
{
"tool": "specter_get_player_state",
"tags": [],
"reasons": {}
},
{
"tool": "specter_send_event",
"tags": [],
"reasons": {}
},
{
"tool": "specter_test_achievement",
"tags": [],
"reasons": {}
},
{
"tool": "specter_get_reward_history",
"tags": [],
"reasons": {}
},
{
"tool": "specter_claim_reward",
"tags": [],
"reasons": {}
},
{
"tool": "specter_generate_client_code",
"tags": [],
"reasons": {}
},
{
"tool": "specter_client_call",
"tags": [],
"reasons": {}
},
{
"tool": "specter_login",
"tags": [],
"reasons": {}
},
{
"tool": "specter_create_currency",
"tags": [],
"reasons": {}
},
{
"tool": "specter_create_currency_conversion",
"tags": [],
"reasons": {}
},
{
"tool": "specter_create_currency_policy",
"tags": [],
"reasons": {}
},
{
"tool": "specter_create_match",
"tags": [],
"reasons": {}
},
{
"tool": "specter_create_event",
"tags": [],
"reasons": {}
},
{
"tool": "specter_create_task",
"tags": [],
"reasons": {}
},
{
"tool": "specter_create_mission",
"tags": [],
"reasons": {}
},
{
"tool": "specter_create_step_series",
"tags": [],
"reasons": {}
},
{
"tool": "specter_create_time_series",
"tags": [],
"reasons": {}
},
{
"tool": "specter_schedule_achievement",
"tags": [],
"reasons": {}
},
{
"tool": "specter_stop_achievement",
"tags": [],
"reasons": {}
},
{
"tool": "specter_delete_achievement",
"tags": [],
"reasons": {}
},
{
"tool": "specter_edit_currency",
"tags": [],
"reasons": {}
},
{
"tool": "specter_edit_task",
"tags": [],
"reasons": {}
},
{
"tool": "specter_update_entity",
"tags": [],
"reasons": {}
},
{
"tool": "specter_admin_call",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "b8a32efacab48bf74e7af3001cb84f9e25a9be719c1395c619ccbb9ae6831731",
"stats": {
"tools": 25,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 2,
"medium": 0,
"low": 0,
"info": 0
}
}
}