Miyabi Mcp Bundle — 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": "miyabi-mcp-bundle",
"source": {
"kind": "package",
"origin": "miyabi-mcp-bundle"
},
"server": {
"name": "miyabi-mcp-bundle"
}
},
"grade": "B",
"score": {
"score": 89,
"threatScore": 100,
"grade": "B",
"band": "B",
"categorySubtotals": {
"injection": 0,
"exfiltration": 0,
"permissions": 0,
"supply-chain": 0,
"network": 0,
"hygiene": 0
},
"vector": [
{
"kind": "client",
"term": "capability-exposure",
"level": "critical",
"label": "capability blast radius (critical) — client exposure if the model is manipulated",
"appliedPenalty": 10
},
{
"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": "critical",
"reasons": [
"ingests untrusted external content (a prompt-injection entry point)",
"can send data / act on an external service",
"reads sensitive or local data",
"has a read → egress path (a data-exfiltration surface)",
"can execute shell commands or code",
"untrusted-input, sensitive-source and egress co-exist across tools (toxic-flow surface)",
"untrusted input can reach code execution"
],
"tags": [
"untrusted-input",
"sensitive-source",
"external-sink",
"code-exec"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (176 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-FLOW-002",
"title": "Completed toxic-flow trifecta across tools",
"category": "exfiltration",
"severity": "critical",
"confidence": "strong",
"description": "This server (without client built-ins) exposes a complete data-exfiltration chain: git_remote_list → file_changes_since → docker_exec. Untrusted input is ingested, private data is read, and it can be sent to an external sink via the agent composing the tools (→). Static analysis proves the primitive exists, not that a specific run will occur.",
"remediation": "Remove one leg of the trifecta: isolate untrusted-input tools from secret-reading tools and from egress tools, or require human approval between them.",
"location": {
"kind": "flow",
"name": "git_remote_list → file_changes_since → docker_exec"
},
"owasp": "LLM02:2025 Sensitive Information Disclosure",
"references": [],
"data": {
"untrusted": [
"git_remote_list"
],
"sources": [
"process_environment",
"file_changes_since"
],
"sinks": [
"github_create_issue",
"docker_exec"
],
"path": [
"git_remote_list",
"file_changes_since",
"docker_exec"
],
"edges": [
{
"from": "git_remote_list",
"to": "file_changes_since",
"kind": "agent-mediated"
},
{
"from": "file_changes_since",
"to": "docker_exec",
"kind": "agent-mediated"
}
],
"wired": false
}
},
{
"ruleId": "MTC-CAP-001",
"title": "Tool \"docker_exec\" exposes command/code execution",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "Tool \"docker_exec\" appears to run shell commands or evaluate code (keyword \"exec\" in tool name, parameter \"command\"). Arbitrary execution driven by model input is one of the most dangerous MCP capabilities; combined with any untrusted input it becomes RCE.",
"remediation": "Sandbox execution, allowlist commands/arguments, and never pass model output to a shell unescaped.",
"location": {
"kind": "tool",
"name": "docker_exec"
},
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"tags": [
"code-exec"
]
}
},
{
"ruleId": "MTC-SRC-001",
"title": "Dynamic code execution in server code (dist/index.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`dist/index.js:2979`): Evaluating strings as code is the most direct RCE primitive; if any tool input reaches it, the server executes attacker-chosen code. 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": "dist/index.js"
},
"evidence": "const result = new Function(`return (${evalExpr})`)(); if (typeof result !== 'number' || !isFinite(",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-001",
"file": "dist/index.js",
"line": 2979,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (dist/cli.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`dist/cli.js: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": "dist/cli.js"
},
"evidence": "port { execSync } from 'child_process'; import * as readline from 'readline'; import { fileURLToPath } from 'url'; let c",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "dist/cli.js",
"line": 15,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (dist/index.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`dist/index.js:44`): 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": "dist/index.js"
},
"evidence": "; import { exec } from 'child_process'; import { promisify } from 'util'; import { createHash } from 'crypto'; import *",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "dist/index.js",
"line": 44,
"nonRuntime": false
}
},
{
"ruleId": "MTC-CAP-006",
"title": "Unconstrained command parameter \"command\" on \"docker_exec\"",
"category": "permissions",
"severity": "medium",
"confidence": "heuristic",
"description": "Tool \"docker_exec\" takes a command-shaped parameter \"command\" with no enum/pattern constraint. Free-form, model- or attacker-controlled arguments reaching a shell is the command-injection precondition.",
"remediation": "Constrain the parameter (enum/pattern), or build the command from a fixed template with escaped args.",
"location": {
"kind": "tool",
"name": "docker_exec",
"field": "inputSchema.properties.command"
},
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"param": "command"
}
},
{
"ruleId": "MTC-CAP-005",
"title": "Mutating tool \"docker_exec\" declares no destructiveHint",
"category": "hygiene",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"docker_exec\" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.",
"remediation": "Declare accurate annotations, and gate destructive tools on user confirmation regardless.",
"location": {
"kind": "tool",
"name": "docker_exec"
},
"data": {
"tags": [
"code-exec"
]
}
},
{
"ruleId": "MTC-CAP-008",
"title": "Unconstrained path parameter \"directory\" on \"file_changes_since\"",
"category": "permissions",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"file_changes_since\" takes a path parameter \"directory\" with no constraint. Without a canonicalize-and-contain check (not visible statically), this permits ../ traversal outside the intended root.",
"remediation": "Resolve and verify the path stays within an allowed root; reject traversal sequences.",
"location": {
"kind": "tool",
"name": "file_changes_since",
"field": "inputSchema.properties.directory"
},
"data": {
"param": "directory"
}
}
],
"toxicFlows": [
{
"id": "flow-1",
"severity": "critical",
"confidence": "strong",
"untrustedInput": [
"git_remote_list"
],
"sensitiveSource": [
"process_environment",
"file_changes_since"
],
"externalSink": [
"github_create_issue",
"docker_exec"
],
"selfContained": false,
"path": [
"git_remote_list",
"file_changes_since",
"docker_exec"
],
"pathWired": false,
"description": "A cross-tool exfiltration chain exists: git_remote_list → file_changes_since → docker_exec."
}
],
"capabilities": [
{
"tool": "git_status",
"tags": [],
"reasons": {}
},
{
"tool": "git_branch_list",
"tags": [],
"reasons": {}
},
{
"tool": "git_current_branch",
"tags": [],
"reasons": {}
},
{
"tool": "git_log",
"tags": [],
"reasons": {}
},
{
"tool": "git_worktree_list",
"tags": [],
"reasons": {}
},
{
"tool": "git_diff",
"tags": [],
"reasons": {}
},
{
"tool": "git_staged_diff",
"tags": [],
"reasons": {}
},
{
"tool": "git_remote_list",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
]
}
},
{
"tool": "git_branch_ahead_behind",
"tags": [],
"reasons": {}
},
{
"tool": "git_file_history",
"tags": [],
"reasons": {}
},
{
"tool": "git_stash_list",
"tags": [],
"reasons": {}
},
{
"tool": "git_blame",
"tags": [],
"reasons": {}
},
{
"tool": "git_show",
"tags": [],
"reasons": {}
},
{
"tool": "git_tag_list",
"tags": [],
"reasons": {}
},
{
"tool": "git_contributors",
"tags": [],
"reasons": {}
},
{
"tool": "git_conflicts",
"tags": [],
"reasons": {}
},
{
"tool": "git_submodule_status",
"tags": [],
"reasons": {}
},
{
"tool": "git_lfs_status",
"tags": [],
"reasons": {}
},
{
"tool": "git_hooks_list",
"tags": [],
"reasons": {}
},
{
"tool": "tmux_list_sessions",
"tags": [],
"reasons": {}
},
{
"tool": "tmux_list_windows",
"tags": [],
"reasons": {}
},
{
"tool": "tmux_list_panes",
"tags": [],
"reasons": {}
},
{
"tool": "tmux_send_keys",
"tags": [],
"reasons": {}
},
{
"tool": "tmux_pane_capture",
"tags": [],
"reasons": {}
},
{
"tool": "tmux_pane_search",
"tags": [],
"reasons": {}
},
{
"tool": "tmux_pane_tail",
"tags": [],
"reasons": {}
},
{
"tool": "tmux_pane_is_busy",
"tags": [],
"reasons": {}
},
{
"tool": "tmux_pane_current_command",
"tags": [],
"reasons": {}
},
{
"tool": "tmux_session_info",
"tags": [],
"reasons": {}
},
{
"tool": "log_sources",
"tags": [],
"reasons": {}
},
{
"tool": "log_get_recent",
"tags": [],
"reasons": {}
},
{
"tool": "log_search",
"tags": [],
"reasons": {}
},
{
"tool": "log_get_errors",
"tags": [],
"reasons": {}
},
{
"tool": "log_get_warnings",
"tags": [],
"reasons": {}
},
{
"tool": "log_tail",
"tags": [],
"reasons": {}
},
{
"tool": "log_stats",
"tags": [],
"reasons": {}
},
{
"tool": "resource_cpu",
"tags": [],
"reasons": {}
},
{
"tool": "resource_memory",
"tags": [],
"reasons": {}
},
{
"tool": "resource_disk",
"tags": [],
"reasons": {}
},
{
"tool": "resource_load",
"tags": [],
"reasons": {}
},
{
"tool": "resource_overview",
"tags": [],
"reasons": {}
},
{
"tool": "resource_processes",
"tags": [],
"reasons": {}
},
{
"tool": "resource_uptime",
"tags": [],
"reasons": {}
},
{
"tool": "resource_network_stats",
"tags": [],
"reasons": {}
},
{
"tool": "resource_battery",
"tags": [],
"reasons": {}
},
{
"tool": "resource_temperature",
"tags": [],
"reasons": {}
},
{
"tool": "network_interfaces",
"tags": [],
"reasons": {}
},
{
"tool": "network_connections",
"tags": [],
"reasons": {}
},
{
"tool": "network_listening_ports",
"tags": [],
"reasons": {}
},
{
"tool": "network_stats",
"tags": [],
"reasons": {}
},
{
"tool": "network_gateway",
"tags": [],
"reasons": {}
},
{
"tool": "network_ping",
"tags": [],
"reasons": {}
},
{
"tool": "network_bandwidth",
"tags": [],
"reasons": {}
},
{
"tool": "network_overview",
"tags": [],
"reasons": {}
},
{
"tool": "network_dns_lookup",
"tags": [],
"reasons": {}
},
{
"tool": "network_port_check",
"tags": [],
"reasons": {}
},
{
"tool": "network_public_ip",
"tags": [],
"reasons": {}
},
{
"tool": "network_wifi_info",
"tags": [],
"reasons": {}
},
{
"tool": "network_route_table",
"tags": [],
"reasons": {}
},
{
"tool": "network_ssl_check",
"tags": [],
"reasons": {}
},
{
"tool": "network_traceroute",
"tags": [],
"reasons": {}
},
{
"tool": "process_info",
"tags": [],
"reasons": {}
},
{
"tool": "process_list",
"tags": [],
"reasons": {}
},
{
"tool": "process_search",
"tags": [],
"reasons": {}
},
{
"tool": "process_tree",
"tags": [],
"reasons": {}
},
{
"tool": "process_file_descriptors",
"tags": [],
"reasons": {}
},
{
"tool": "process_environment",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"get_env\""
]
}
},
{
"tool": "process_children",
"tags": [],
"reasons": {}
},
{
"tool": "process_top",
"tags": [],
"reasons": {}
},
{
"tool": "process_kill",
"tags": [],
"reasons": {}
},
{
"tool": "process_ports",
"tags": [],
"reasons": {}
},
{
"tool": "process_cpu_history",
"tags": [],
"reasons": {}
},
{
"tool": "process_memory_detail",
"tags": [],
"reasons": {}
},
{
"tool": "process_threads",
"tags": [],
"reasons": {}
},
{
"tool": "process_io_stats",
"tags": [],
"reasons": {}
},
{
"tool": "file_stats",
"tags": [],
"reasons": {}
},
{
"tool": "file_recent_changes",
"tags": [],
"reasons": {}
},
{
"tool": "file_search",
"tags": [],
"reasons": {}
},
{
"tool": "file_tree",
"tags": [],
"reasons": {}
},
{
"tool": "file_compare",
"tags": [],
"reasons": {}
},
{
"tool": "file_changes_since",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"list_files\""
]
}
},
{
"tool": "file_read",
"tags": [],
"reasons": {}
},
{
"tool": "file_checksum",
"tags": [],
"reasons": {}
},
{
"tool": "file_size_summary",
"tags": [],
"reasons": {}
},
{
"tool": "file_duplicates",
"tags": [],
"reasons": {}
},
{
"tool": "claude_config",
"tags": [],
"reasons": {}
},
{
"tool": "claude_mcp_status",
"tags": [],
"reasons": {}
},
{
"tool": "claude_session_info",
"tags": [],
"reasons": {}
},
{
"tool": "claude_logs",
"tags": [],
"reasons": {}
},
{
"tool": "claude_log_search",
"tags": [],
"reasons": {}
},
{
"tool": "claude_log_files",
"tags": [],
"reasons": {}
},
{
"tool": "claude_background_shells",
"tags": [],
"reasons": {}
},
{
"tool": "claude_status",
"tags": [],
"reasons": {}
},
{
"tool": "github_list_issues",
"tags": [],
"reasons": {}
},
{
"tool": "github_get_issue",
"tags": [],
"reasons": {}
},
{
"tool": "github_create_issue",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"create_issue\""
]
}
},
{
"tool": "github_update_issue",
"tags": [],
"reasons": {}
},
{
"tool": "github_add_comment",
"tags": [],
"reasons": {}
},
{
"tool": "github_list_prs",
"tags": [],
"reasons": {}
},
{
"tool": "github_get_pr",
"tags": [],
"reasons": {}
},
{
"tool": "github_create_pr",
"tags": [],
"reasons": {}
},
{
"tool": "github_merge_pr",
"tags": [],
"reasons": {}
},
{
"tool": "github_list_labels",
"tags": [],
"reasons": {}
},
{
"tool": "github_add_labels",
"tags": [],
"reasons": {}
},
{
"tool": "github_list_milestones",
"tags": [],
"reasons": {}
},
{
"tool": "github_list_workflows",
"tags": [],
"reasons": {}
},
{
"tool": "github_list_workflow_runs",
"tags": [],
"reasons": {}
},
{
"tool": "github_repo_info",
"tags": [],
"reasons": {}
},
{
"tool": "github_list_releases",
"tags": [],
"reasons": {}
},
{
"tool": "github_list_branches",
"tags": [],
"reasons": {}
},
{
"tool": "github_compare_commits",
"tags": [],
"reasons": {}
},
{
"tool": "github_list_pr_reviews",
"tags": [],
"reasons": {}
},
{
"tool": "github_create_review",
"tags": [],
"reasons": {}
},
{
"tool": "github_submit_review",
"tags": [],
"reasons": {}
},
{
"tool": "health_check",
"tags": [],
"reasons": {}
},
{
"tool": "linux_systemd_units",
"tags": [],
"reasons": {}
},
{
"tool": "linux_systemd_status",
"tags": [],
"reasons": {}
},
{
"tool": "linux_journal_search",
"tags": [],
"reasons": {}
},
{
"tool": "windows_service_status",
"tags": [],
"reasons": {}
},
{
"tool": "windows_eventlog_search",
"tags": [],
"reasons": {}
},
{
"tool": "docker_ps",
"tags": [],
"reasons": {}
},
{
"tool": "docker_images",
"tags": [],
"reasons": {}
},
{
"tool": "docker_logs",
"tags": [],
"reasons": {}
},
{
"tool": "docker_inspect",
"tags": [],
"reasons": {}
},
{
"tool": "docker_stats",
"tags": [],
"reasons": {}
},
{
"tool": "docker_exec",
"tags": [
"code-exec"
],
"reasons": {
"code-exec": [
"keyword \"exec\" in tool name",
"parameter \"command\""
]
}
},
{
"tool": "docker_start",
"tags": [],
"reasons": {}
},
{
"tool": "docker_stop",
"tags": [],
"reasons": {}
},
{
"tool": "docker_restart",
"tags": [],
"reasons": {}
},
{
"tool": "docker_build",
"tags": [],
"reasons": {}
},
{
"tool": "compose_ps",
"tags": [],
"reasons": {}
},
{
"tool": "compose_up",
"tags": [],
"reasons": {}
},
{
"tool": "compose_down",
"tags": [],
"reasons": {}
},
{
"tool": "compose_logs",
"tags": [],
"reasons": {}
},
{
"tool": "k8s_get_pods",
"tags": [],
"reasons": {}
},
{
"tool": "k8s_get_deployments",
"tags": [],
"reasons": {}
},
{
"tool": "k8s_logs",
"tags": [],
"reasons": {}
},
{
"tool": "k8s_describe",
"tags": [],
"reasons": {}
},
{
"tool": "k8s_apply",
"tags": [],
"reasons": {}
},
{
"tool": "k8s_delete",
"tags": [],
"reasons": {}
},
{
"tool": "speckit_init",
"tags": [],
"reasons": {}
},
{
"tool": "speckit_status",
"tags": [],
"reasons": {}
},
{
"tool": "speckit_constitution",
"tags": [],
"reasons": {}
},
{
"tool": "speckit_specify",
"tags": [],
"reasons": {}
},
{
"tool": "speckit_plan",
"tags": [],
"reasons": {}
},
{
"tool": "speckit_tasks",
"tags": [],
"reasons": {}
},
{
"tool": "speckit_checklist",
"tags": [],
"reasons": {}
},
{
"tool": "speckit_analyze",
"tags": [],
"reasons": {}
},
{
"tool": "speckit_list_features",
"tags": [],
"reasons": {}
},
{
"tool": "mcp_search_tools",
"tags": [],
"reasons": {}
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