Vibeguard (yagyeshvyas) MCP Server

@yagyeshvyas/vibeguard npm v1.3.0

Published by @yagyeshvyas — no publish provenance, so origin is unverified, but the source is public: the repository link below is self-declared yet readable, so you can inspect the code before adopting it.

Security scanner + AI agent firewall. Blocks secret/PII exfiltration in real time. 752 rules, 82 MCP tools (agent-scan, mcp-audit, guard-action, generate-sbom, dep-reachability, license-compliance), AST taint analysis. Offline, zero telemetry, zero depend

Trust grade
B
81/100
Last scanned get badge →
Trust
B · 81/100
Adoption risk for you: the threat score, then adjusted down for blast radius, publisher verification and how much the scan could see. Deterministic; every point is auditable.
Capability
High
Blast radius if it went rogue — what the server’s tools could reach. Independent of trust.
Coverage
Source
How much the scan could actually inspect. Shallow coverage is stated, never hidden.
Share this Trust Score
𝕏 Share LinkedIn Reddit
B Why this grade threat 88 − adoption risk = 81/100

The grade answers one question — how safe is this server for you to adopt — so it is computed in two auditable stages. Nothing below is an opinion or an LLM's guess; every line is a real term the deterministic engine applied, and the same input always yields the same number.

1. Threat score — 100 − 12.5 = 88. What the published surface and source actually contain:

PointsWhat was foundCategory
−9.5 Untrusted input concatenated into a command sink ×2 MTC-SRC-009 injection
−1.8 Shell command embedded in tool metadata ×2 MTC-INJ-CMD-1 injection
−1.2 Package runs install-time scripts MTC-SUP-010 supply-chain

2. Client adoption risk — 88 − 7 = 81. Three small, subtract-only factors that reflect your risk in adopting it — a clean scan proves less on a powerful, unverified or barely-inspectable package, so the grade says so plainly:

PointsAdoption-risk factor
−6 capability blast radius (high) — client exposure if the model is manipulated
−1 publisher verification (public source) — no provenance, but the source is public and inspectable

Capability observations and info notes are shown under Findings but never scored. Open any row's finding below for the file, line and evidence behind a deduction.

Findings 42

high Sensitive-source and external-sink co-existMTC-FLOW-004

Tools that read sensitive data ([config_dump]) and tools that can send data out ([guard_action, check_command, slack_notify, agent_guard, sandbox_exec]) are exposed together. An agent can move private data to the sink.

Evidence: sources [config_dump] → sinks [guard_action, check_command, slack_notify, agent_guard, sandbox_exec]

Fix: Keep secret-reading and egress capabilities on separate, separately-approved servers.

Location: flow config_dump → guard_action

high Reads a sensitive credential path or dumps the environment (src/interceptor.js)MTC-SRC-006

In the server's implementation (`src/interceptor.js:44`): Reading private keys / cloud credentials, or serializing the whole environment, is a sensitive-data source that becomes exfiltration when combined with any egress. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.

Evidence: ssh', '.aws', '.gnupg', '.npmrc', '.gitconfig'], // Block commands matching these patterns blockCommands: ['rm -rf',

Fix: 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: server src/interceptor.js

high Reads a sensitive credential path or dumps the environment (src/rules-pack.js)MTC-SRC-006

In the server's implementation (`src/rules-pack.js:1173`): Reading private keys / cloud credentials, or serializing the whole environment, is a sensitive-data source that becomes exfiltration when combined with any egress. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.

Evidence: rnal packages; configure .npmrc scopes correctly.', owasp: 'A08:2025 Software and Data Integrity Failures', cwe:

Fix: 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: server src/rules-pack.js

high Reads a sensitive credential path or dumps the environment (src/rules.js)MTC-SRC-006

In the server's implementation (`src/rules.js:225`): Reading private keys / cloud credentials, or serializing the whole environment, is a sensitive-data source that becomes exfiltration when combined with any egress. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.

Evidence: s token (also flagged in .npmrc).', fix: 'Remove it, use an environment variable / CI secret, and revoke it on npmj

Fix: 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: server src/rules.js

high Reads a sensitive credential path or dumps the environment (src/scanner.js)MTC-SRC-006

In the server's implementation (`src/scanner.js:74`): Reading private keys / cloud credentials, or serializing the whole environment, is a sensitive-data source that becomes exfiltration when combined with any egress. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.

Evidence: , '.env.production', '.npmrc', 'Dockerfile', '.dockerenv', ]); const MAX_FILE_BYTES = 2 * 1024 * 1024; // 2MB — s

Fix: 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: server src/scanner.js

high Reads a sensitive credential path or dumps the environment (src/slopsquat.js)MTC-SRC-006

In the server's implementation (`src/slopsquat.js:133`): Reading private keys / cloud credentials, or serializing the whole environment, is a sensitive-data source that becomes exfiltration when combined with any egress. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.

Evidence: . If internal, configure .npmrc scopes. If from an AI suggestion, remove it.`, owasp: 'A08:2025 Software and D

Fix: 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: server src/slopsquat.js

high Tool "guard_action" exposes command/code executionMTC-CAP-001

Tool "guard_action" appears to run shell commands or evaluate code (parameter "command"). Arbitrary execution driven by model input is one of the most dangerous MCP capabilities; combined with any untrusted input it becomes RCE.

Fix: Sandbox execution, allowlist commands/arguments, and never pass model output to a shell unescaped.

Location: tool guard_action

high Tool "check_command" exposes command/code executionMTC-CAP-001

Tool "check_command" appears to run shell commands or evaluate code (parameter "command"). Arbitrary execution driven by model input is one of the most dangerous MCP capabilities; combined with any untrusted input it becomes RCE.

Fix: Sandbox execution, allowlist commands/arguments, and never pass model output to a shell unescaped.

Location: tool check_command

high Tool "agent_guard" exposes command/code executionMTC-CAP-001

Tool "agent_guard" appears to run shell commands or evaluate code (parameter "command"). Arbitrary execution driven by model input is one of the most dangerous MCP capabilities; combined with any untrusted input it becomes RCE.

Fix: Sandbox execution, allowlist commands/arguments, and never pass model output to a shell unescaped.

Location: tool agent_guard

high Tool "sandbox_exec" exposes command/code executionMTC-CAP-001

Tool "sandbox_exec" appears to run shell commands or evaluate code (keyword "exec" in tool name). Arbitrary execution driven by model input is one of the most dangerous MCP capabilities; combined with any untrusted input it becomes RCE.

Fix: Sandbox execution, allowlist commands/arguments, and never pass model output to a shell unescaped.

Location: tool sandbox_exec

high Dynamic code execution in server code (bin/cli.js)MTC-SRC-001

In the server's implementation (`bin/cli.js:1194`): 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.

Evidence: variables - Never use eval() or new Function() with user input - Never concatenate SQL strings — use parameterized qu

Fix: 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: server bin/cli.js

high Dynamic code execution in server code (src/ast.js)MTC-SRC-001

In the server's implementation (`src/ast.js:149`): 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.

Evidence: ecution.', fix: 'Remove eval(). Use JSON.parse or an explicit dispatch table.', snippet: 'eval(...)' }); } i

Fix: 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: server src/ast.js

high Dynamic code execution in server code (src/policy-gen.js)MTC-SRC-001

In the server's implementation (`src/policy-gen.js:283`): 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.

Evidence: 'unsafe-eval' — remove eval() usage" : null, ].filter(Boolean), }; } module.exports = { generatePrivacyPolicy, g

Fix: 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: server src/policy-gen.js

high Dynamic code execution in server code (src/rules-pack.js)MTC-SRC-001

In the server's implementation (`src/rules-pack.js:750`): 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.

Evidence: cy allows unsafe-eval — eval() and new Function() can be used for XSS.', fix: 'Remove unsafe-eval; refactor any code

Fix: 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: server src/rules-pack.js

high Dynamic code execution in server code (src/rules.js)MTC-SRC-001

In the server's implementation (`src/rules.js:334`): 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.

Evidence: ipInString: true, // an eval() inside a quoted string is text, not a call message: 'eval() executes arbitrary code

Fix: 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: server src/rules.js

high Dynamic code execution in server code (src/secure-prompt.js)MTC-SRC-001

In the server's implementation (`src/secure-prompt.js:24`): 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.

Evidence: , msg: 'Prompt requests eval() — code injection risk' }, { re: /new\s+Function\s*\(/i, risk: 'high', msg: 'Prompt requ

Fix: 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: server src/secure-prompt.js

high Dynamic code execution in server code (src/taint-ast.js)MTC-SRC-001

In the server's implementation (`src/taint-ast.js:90`): 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.

Evidence: le: 'User input reaches eval()/Function() (dataflow-confirmed)', message: 'A value derived from user input flows int

Fix: 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: server src/taint-ast.js

high Dynamic code execution in server code (src/taint.js)MTC-SRC-001

In the server's implementation (`src/taint.js:53`): 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.

Evidence: le: 'User input reaches eval()/Function() (dataflow-confirmed)', message: 'A value derived from user input flows int

Fix: 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: server src/taint.js

high Shell/command execution in server code (bin/cli.js)MTC-SRC-002

In the server's implementation (`bin/cli.js:1207`): 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.

Evidence: ever pass user input to exec() or spawn() without sanitization - For AI agents: add maxSteps, sandbox file access, allo

Fix: 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: server bin/cli.js

high Shell/command execution in server code (src/auto.js)MTC-SRC-002

In the server's implementation (`src/auto.js:17`): 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.

Evidence: , execSync } = require('child_process'); const STATE_DIR = '.vibeguard'; const STATE_FILE = path.join(STATE_DIR, 'auto.

Fix: 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: server src/auto.js

high Shell/command execution in server code (src/daemon.js)MTC-SRC-002

In the server's implementation (`src/daemon.js:29`): 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.

Evidence: , execSync } = require('child_process'); const DAEMON_FILE = '.vibeguard-daemon.json'; const DAEMON_LOG = '.vibeguard-d

Fix: 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: server src/daemon.js

high Shell/command execution in server code (src/deps.js)MTC-SRC-002

In the server's implementation (`src/deps.js:14`): 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.

Evidence: , execSync } = require('child_process'); const AUDIT_TIMEOUT_MS = 60000; // npm severity -> VibeGuard severity. npm us

Fix: 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: server src/deps.js

high Shell/command execution in server code (src/engine.js)MTC-SRC-002

In the server's implementation (`src/engine.js:162`): 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.

Evidence: e: /exec\s*\(/g, name: 'exec()', type: 'code' }, { re: /open\s*\(/g, name: 'open()', type: 'file' }, { re: /pickle

Fix: 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: server src/engine.js

high Shell/command execution in server code (src/external.js)MTC-SRC-002

In the server's implementation (`src/external.js: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.

Evidence: , execSync } = require('child_process'); const isWin = process.platform === 'win32'; const TIMEOUT_MS = 180000; functi

Fix: 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: server src/external.js

high Shell/command execution in server code (src/guard.js)MTC-SRC-002

In the server's implementation (`src/guard.js:28`): 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.

Evidence: { execSync } = require('child_process'); const { checkCommand } = require('./shell-guard'); const originalExecSync =

Fix: 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: server src/guard.js

high Shell/command execution in server code (src/history.js)MTC-SRC-002

In the server's implementation (`src/history.js:13`): 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.

Evidence: ecFileSync } = require('child_process'); const { secretRules, matchAll } = require('./rules'); const isWin = process.pl

Fix: 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: server src/history.js

high Shell/command execution in server code (src/interceptor.js)MTC-SRC-002

In the server's implementation (`src/interceptor.js:280`): 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.

Evidence: ile, spawn } = require('child_process'); if (exec) { interceptors.exec = exec; require('child_process').exec =

Fix: 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: server src/interceptor.js

high Shell/command execution in server code (src/mcp-server.js)MTC-SRC-002

In the server's implementation (`src/mcp-server.js:516`): 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.

Evidence: process.env, no fs, no child_process, no network. Time-limited and memory-limited. Full audit log of every operation at

Fix: 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: server src/mcp-server.js

medium Untrusted input concatenated into a command sink (src/daemon.js)MTC-SRC-009

In the server's implementation (`src/daemon.js:117`): A shell/process command assembled from concatenated or interpolated values is command injection when any part is attacker-influenced — the OWASP canonical RCE flow. Verify what reaches the interpolated value. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.

Evidence: const gitResult = execSync(`git show HEAD:"${relPath}" 2>NUL`, { cwd: rootDir,

Fix: 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: server src/daemon.js

medium Untrusted input concatenated into a command sink (src/mcp-server.js)MTC-SRC-009

In the server's implementation (`src/mcp-server.js:889`): A shell/process command assembled from concatenated or interpolated values is command injection when any part is attacker-influenced — the OWASP canonical RCE flow. Verify what reaches the interpolated value. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.

Evidence: s; try { diffFiles = execSync(`git diff ${base} --name-only`, { cwd: dir, encoding: 'utf8' }).trim().split('\n').filt

Fix: 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: server src/mcp-server.js

medium Unconstrained command parameter "command" on "guard_action"MTC-CAP-006

Tool "guard_action" 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.

Fix: Constrain the parameter (enum/pattern), or build the command from a fixed template with escaped args.

Location: tool guard_action · inputSchema.properties.command

medium Unconstrained command parameter "command" on "check_command"MTC-CAP-006

Tool "check_command" 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.

Fix: Constrain the parameter (enum/pattern), or build the command from a fixed template with escaped args.

Location: tool check_command · inputSchema.properties.command

medium Unconstrained command parameter "command" on "agent_guard"MTC-CAP-006

Tool "agent_guard" 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.

Fix: Constrain the parameter (enum/pattern), or build the command from a fixed template with escaped args.

Location: tool agent_guard · inputSchema.properties.command

medium Unconstrained command parameter "code" on "sandbox_exec"MTC-CAP-006

Tool "sandbox_exec" takes a command-shaped parameter "code" with no enum/pattern constraint. Free-form, model- or attacker-controlled arguments reaching a shell is the command-injection precondition.

Fix: Constrain the parameter (enum/pattern), or build the command from a fixed template with escaped args.

Location: tool sandbox_exec · inputSchema.properties.code

medium Dynamic module load from a non-literal (src/plugin.js)MTC-SRC-005

In the server's implementation (`src/plugin.js:80`): Loading a module chosen at runtime (from a variable) can pull in and run attacker-influenced code paths. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.

Evidence: try { mod = require(name); } catch { // Try resolving from the root directory co

Fix: 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: server src/plugin.js

low Mutating tool "guard_action" declares no destructiveHintMTC-CAP-005

Tool "guard_action" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.

Fix: Declare accurate annotations, and gate destructive tools on user confirmation regardless.

Location: tool guard_action

low Mutating tool "check_command" declares no destructiveHintMTC-CAP-005

Tool "check_command" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.

Fix: Declare accurate annotations, and gate destructive tools on user confirmation regardless.

Location: tool check_command

low Mutating tool "agent_guard" declares no destructiveHintMTC-CAP-005

Tool "agent_guard" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.

Fix: Declare accurate annotations, and gate destructive tools on user confirmation regardless.

Location: tool agent_guard

low Mutating tool "sandbox_exec" declares no destructiveHintMTC-CAP-005

Tool "sandbox_exec" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.

Fix: Declare accurate annotations, and gate destructive tools on user confirmation regardless.

Location: tool sandbox_exec

low Shell command embedded in tool metadataMTC-INJ-CMD-1

Shell command embedded in tool metadata detected in the description of tool "check_command". Instruction-like content in tool metadata is executed by the model, not the human, and is the primary tool-poisoning vector.

Evidence: rm -rf

Fix: Tool descriptions should describe behavior, not instruct the assistant. Treat imperative / secrecy / sequencing language in metadata as hostile.

Location: tool check_command · description

low Shell command embedded in tool metadataMTC-INJ-CMD-1

Shell command embedded in tool metadata detected in the description of tool "agent_guard". Instruction-like content in tool metadata is executed by the model, not the human, and is the primary tool-poisoning vector.

Evidence: rm -rf

Fix: Tool descriptions should describe behavior, not instruct the assistant. Treat imperative / secrecy / sequencing language in metadata as hostile.

Location: tool agent_guard · description

low Package runs install-time scripts (postinstall)MTC-SUP-010

"@yagyeshvyas/vibeguard" executes postinstall script(s) at install time. An install hook runs at install time; most are routine build/setup, but review what it does before trusting it.

Evidence: node scripts/postinstall.js

Fix: Review the scripts; install with --ignore-scripts where possible and vet what they do.

Location: package @yagyeshvyas/vibeguard

Tools 82

Each tool and what it can reach — statically extracted from the published source.

  • agent_guardruns code / shell
  • check_commandruns code / shell
  • config_dumpreads sensitive data
  • guard_actionruns code / shell
  • sandbox_execruns code / shell
  • slack_notifynetwork egress
  • agent_scanno sensitive capability
  • ai_data_guardno sensitive capability
  • ai_firewallno sensitive capability
  • analyze_cross_file_dataflowno sensitive capability
Show 72 more tools ↓
  • analyze_dataflowno sensitive capability
  • audit_configno sensitive capability
  • audit_logno sensitive capability
  • auth_coverageno sensitive capability
  • baselineno sensitive capability
  • batch_fixno sensitive capability
  • behavior_analysisno sensitive capability
  • check_codeno sensitive capability
  • check_package_healthno sensitive capability
  • compliance_reportno sensitive capability
  • cve_intelno sensitive capability
  • deep_scanno sensitive capability
  • dep_firewallno sensitive capability
  • dep_reachabilityno sensitive capability
  • dependency_treeno sensitive capability
  • detect_piino sensitive capability
  • env_lockno sensitive capability
  • exfil_checkno sensitive capability
  • explain_remediationno sensitive capability
  • export_sarifno sensitive capability
  • fix_codeno sensitive capability
  • full_auditno sensitive capability
  • generate_cspno sensitive capability
  • generate_html_reportno sensitive capability
  • generate_policyno sensitive capability
  • generate_privacy_policyno sensitive capability
  • generate_sbomno sensitive capability
  • guardvibe_doctorno sensitive capability
  • ignore_ruleno sensitive capability
  • interactive_dashboardno sensitive capability
  • license_complianceno sensitive capability
  • list_rulesno sensitive capability
  • mcp_auditno sensitive capability
  • network_auditno sensitive capability
  • output_guardno sensitive capability
  • pr_commentno sensitive capability
  • pre_deployno sensitive capability
  • preset_applyno sensitive capability
  • privacy_auditno sensitive capability
  • redact_piino sensitive capability
  • remediation_planno sensitive capability
  • repo_security_postureno sensitive capability
  • review_hotspotsno sensitive capability
  • review_prno sensitive capability
  • risk_scoreno sensitive capability
  • rule_infono sensitive capability
  • scan_changed_filesno sensitive capability
  • scan_config_changeno sensitive capability
  • scan_container_imageno sensitive capability
  • scan_dependenciesno sensitive capability
  • scan_fileno sensitive capability
  • scan_hallucinated_packagesno sensitive capability
  • scan_projectno sensitive capability
  • scan_secretsno sensitive capability
  • scan_secrets_historyno sensitive capability
  • scan_stagedno sensitive capability
  • scan_urlno sensitive capability
  • secure_promptno sensitive capability
  • secure_thisno sensitive capability
  • security_scorecardno sensitive capability
  • security_statsno sensitive capability
  • self_checkno sensitive capability
  • severity_matrixno sensitive capability
  • suggest_fixesno sensitive capability
  • supply_chain_auditno sensitive capability
  • tamper_checkno sensitive capability
  • threat_modelno sensitive capability
  • trace_promptno sensitive capability
  • trend_reportno sensitive capability
  • vault_manageno sensitive capability
  • verify_fixesno sensitive capability
  • verify_remediationno sensitive capability

Toxic flows 1

Cross-tool combinations that form a data-exfiltration primitive (untrusted input → sensitive source → external sink).

What this scan could not see

Versions 1

Scan history per published version. The engine is deterministic — the same version always yields the same score, so a changed score means the package itself changed.

VersionScoreFindingsEngineScanned
v1.3.0 latest B 81/100 42 1.13.0 2026-09-07

Embed this score

Show this server's live Trust Score in your README, docs or website. The badge is served straight from the registry and updates automatically after every rescan — no API key needed. It links back to this page, so anyone who sees the grade can also read the findings behind it instead of taking a number on faith.

MCP Trust Score: B · 81/100
Markdown (GitHub README)
[![MCP Trust Score](https://mcptrustchecker.com/registry/yagyeshvyas-vibeguard/badge.svg)](https://mcptrustchecker.com/registry/yagyeshvyas-vibeguard)
HTML
<a href="https://mcptrustchecker.com/registry/yagyeshvyas-vibeguard"><img src="https://mcptrustchecker.com/registry/yagyeshvyas-vibeguard/badge.svg" alt="MCP Trust Score" height="20"></a>
Prefer shields.io styling? Point it at https://mcptrustchecker.com/registry/yagyeshvyas-vibeguard/badge.json via https://img.shields.io/endpoint?url=…

Verify this score yourself

The score above is reproducible: the same package version always yields the same result. Run it locally or over the free API — no account, no LLM, fully deterministic.

npx mcptrustchecker scan @yagyeshvyas/vibeguard --online

Use the free API → How scoring works

Other implementations of Vibeguard 1

Independent packages implementing the same tool, scanned with the same engine. Compare all 2 side by side →

More in Developer Tools