Steam — 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": "@tmhs/steam-mcp",
"source": {
"kind": "package",
"origin": "@tmhs/steam-mcp"
},
"server": {
"name": "@tmhs/steam-mcp"
}
},
"grade": "A",
"score": {
"score": 97,
"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": "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": "moderate",
"reasons": [
"ingests untrusted external content (a prompt-injection entry point)"
],
"tags": [
"untrusted-input"
]
},
"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": [],
"toxicFlows": [],
"capabilities": [
{
"tool": "steam_clearAchievement",
"tags": [],
"reasons": {}
},
{
"tool": "steam_createLobby",
"tags": [],
"reasons": {}
},
{
"tool": "steam_getAchievementStats",
"tags": [],
"reasons": {}
},
{
"tool": "steam_getAppDetails",
"tags": [],
"reasons": {}
},
{
"tool": "steam_getAppReviewSummary",
"tags": [],
"reasons": {}
},
{
"tool": "steam_getLeaderboardEntries",
"tags": [],
"reasons": {}
},
{
"tool": "steam_getLeaderboardsForGame",
"tags": [],
"reasons": {}
},
{
"tool": "steam_getNewsForApp",
"tags": [],
"reasons": {}
},
{
"tool": "steam_getOwnedGames",
"tags": [],
"reasons": {}
},
{
"tool": "steam_getPlayerAchievements",
"tags": [],
"reasons": {}
},
{
"tool": "steam_getPlayerCount",
"tags": [],
"reasons": {}
},
{
"tool": "steam_getPlayerSummary",
"tags": [],
"reasons": {}
},
{
"tool": "steam_getPriceOverview",
"tags": [],
"reasons": {}
},
{
"tool": "steam_getRegionalPricing",
"tags": [],
"reasons": {}
},
{
"tool": "steam_getReviews",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
]
}
},
{
"tool": "steam_getSchemaForGame",
"tags": [],
"reasons": {}
},
{
"tool": "steam_getWorkshopItem",
"tags": [],
"reasons": {}
},
{
"tool": "steam_grantInventoryItem",
"tags": [],
"reasons": {}
},
{
"tool": "steam_queryWorkshop",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"browse\""
]
}
},
{
"tool": "steam_resolveVanityURL",
"tags": [],
"reasons": {}
},
{
"tool": "steam_searchApps",
"tags": [],
"reasons": {}
},
{
"tool": "steam_setAchievement",
"tags": [],
"reasons": {}
},
{
"tool": "steam_updateWorkshopItem",
"tags": [],
"reasons": {}
},
{
"tool": "steam_uploadLeaderboardScore",
"tags": [],
"reasons": {}
},
{
"tool": "steam_uploadWorkshopItem",
"tags": [],
"reasons": {}
},
{
"tool": "steam_validateStoreAsset",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "f92851cc01dff385e367036a352e719f0c469c85f284f09dd85b9487a87ab62b",
"stats": {
"tools": 26,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 0,
"medium": 0,
"low": 0,
"info": 0
}
}
}