First Ch Tools — 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": "@first-ch/tools-mcp",
"source": {
"kind": "package",
"origin": "@first-ch/tools-mcp"
},
"server": {
"name": "@first-ch/tools-mcp"
}
},
"grade": "A",
"score": {
"score": 94,
"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": "source",
"label": "publisher verification (provenance) — cryptographic build provenance ties the artifact to its source",
"appliedPenalty": 0
},
{
"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 (30 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 (marp.mjs)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`marp.mjs:16`): 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": "marp.mjs"
},
"evidence": "{ execFile } from 'node:child_process'; import { promisify } from 'node:util'; import { pathToFileURL } from 'node:url';",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "marp.mjs",
"line": 16,
"nonRuntime": false
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "contrast_check",
"tags": [],
"reasons": {}
},
{
"tool": "count_chars",
"tags": [],
"reasons": {}
},
{
"tool": "webp_convert",
"tags": [],
"reasons": {}
},
{
"tool": "jsonld_generate",
"tags": [],
"reasons": {}
},
{
"tool": "llmstxt_generate",
"tags": [],
"reasons": {}
},
{
"tool": "encoding_convert",
"tags": [],
"reasons": {}
},
{
"tool": "marp_render",
"tags": [],
"reasons": {}
},
{
"tool": "testdata_generate",
"tags": [],
"reasons": {}
},
{
"tool": "diff_check",
"tags": [],
"reasons": {}
},
{
"tool": "cron_explain",
"tags": [],
"reasons": {}
},
{
"tool": "base64_encode",
"tags": [],
"reasons": {}
},
{
"tool": "url_params",
"tags": [],
"reasons": {}
},
{
"tool": "html_escape",
"tags": [],
"reasons": {}
},
{
"tool": "json_to_yaml",
"tags": [],
"reasons": {}
},
{
"tool": "yaml_to_json",
"tags": [],
"reasons": {}
},
{
"tool": "px_rem_convert",
"tags": [],
"reasons": {}
},
{
"tool": "color_convert",
"tags": [],
"reasons": {}
},
{
"tool": "hash_generate",
"tags": [],
"reasons": {}
},
{
"tool": "jwt_decode",
"tags": [],
"reasons": {}
},
{
"tool": "user_agent_parse",
"tags": [],
"reasons": {}
},
{
"tool": "uuid_generate",
"tags": [],
"reasons": {}
},
{
"tool": "aspect_ratio_calc",
"tags": [],
"reasons": {}
},
{
"tool": "markdown_table",
"tags": [],
"reasons": {}
},
{
"tool": "sql_format",
"tags": [],
"reasons": {}
},
{
"tool": "qr_generate",
"tags": [],
"reasons": {}
},
{
"tool": "unixtime_convert",
"tags": [],
"reasons": {}
},
{
"tool": "robotstxt_generate",
"tags": [],
"reasons": {}
},
{
"tool": "case_convert",
"tags": [],
"reasons": {}
},
{
"tool": "csv_convert",
"tags": [],
"reasons": {}
},
{
"tool": "zenkaku_convert",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "fdd2f19961148b360bfefc2f7047e990ac3ececca8653354c448a6833d09f67b",
"stats": {
"tools": 30,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 1,
"medium": 0,
"low": 0,
"info": 0
}
}
}