{"passport":{"unfragile":{"@version":"1.0","version":"2026-05","artifact":{"id":"awesome-mcp-cli-adapter","slug":"mcp-cli-adapter","name":"MCP-CLI Adapter","type":"mcp","url":"https://github.com/inercia/mcp-cli-adapter","page_url":"https://unfragile.ai/mcp-cli-adapter","categories":["mcp-servers"],"tags":[],"pricing":{"model":"open_source","free":true,"starting_price":null},"status":"active","verified":false},"capabilities":[{"id":"awesome-mcp-cli-adapter__cap_0","uri":"capability://tool.use.integration.cli.to.mcp.protocol.translation.with.sandboxed.execution","name":"cli-to-mcp protocol translation with sandboxed execution","description":"Translates arbitrary command-line tools into MCP (Model Context Protocol) compatible tools by wrapping CLI invocations in a secure execution layer. The adapter intercepts CLI commands, validates them against a security policy, executes them in an isolated subprocess environment, and marshals stdout/stderr/exit codes back into MCP tool response format. This enables LLM agents to safely invoke system commands without direct shell access.","intents":["I want to let Claude or other LLMs safely call my existing CLI tools without exposing the full shell","I need to expose system utilities (grep, curl, jq, etc.) to an AI agent with execution guardrails","I want to bridge legacy command-line tools into an MCP-compatible agent ecosystem"],"best_for":["AI agent developers building secure tool integrations","Teams migrating CLI-based workflows into LLM-powered automation","Security-conscious builders who need CLI access with audit trails and sandboxing"],"limitations":["No built-in process resource limits (CPU, memory, timeout) — requires external process management or wrapper scripts","Subprocess execution inherits parent process environment variables, creating potential information leakage if sensitive env vars exist","No streaming output support — entire command output buffered in memory before MCP response, limiting use with large output streams","Security policy enforcement is declarative only — no runtime behavior analysis or anomaly detection"],"requires":["MCP server runtime (Claude Desktop, Cline, or compatible MCP host)","Python 3.8+ or Node.js 16+ (depending on adapter implementation)","CLI tools to be installed and accessible in system PATH","Valid MCP configuration file defining allowed commands and security policies"],"input_types":["command string with arguments","environment variable overrides (optional)","stdin data (optional, for piped input)"],"output_types":["structured MCP tool result with stdout, stderr, exit_code","error messages with validation failure reasons"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-mcp-cli-adapter__cap_1","uri":"capability://safety.moderation.security.policy.enforcement.for.cli.invocation","name":"security policy enforcement for cli invocation","description":"Enforces declarative security policies that control which CLI commands can be executed, what arguments are permitted, and what environment variables are accessible. The adapter parses a configuration file (likely YAML or JSON) defining command allowlists, argument patterns, and environment restrictions, then validates each incoming MCP tool call against these policies before subprocess execution. Violations are rejected with detailed error messages explaining the policy breach.","intents":["I need to restrict which commands an LLM agent can invoke to prevent destructive operations","I want to allow only specific arguments to certain commands (e.g., curl with --get but not --upload-file)","I need to prevent the agent from accessing sensitive environment variables like API keys or credentials"],"best_for":["Enterprise teams deploying LLM agents in production with compliance requirements","Security-first developers building multi-tenant AI systems","Teams running untrusted LLM models or agents with limited oversight"],"limitations":["Policy syntax and validation logic not standardized — implementation-specific, making policies non-portable across MCP adapters","No runtime policy updates without restarting the MCP server — policies are loaded once at startup","Argument validation uses pattern matching (regex or glob) which can be bypassed with shell metacharacters or encoding tricks if not carefully designed","No audit logging built-in — requires external integration to track policy violations and command execution history"],"requires":["Configuration file in adapter's supported format (YAML/JSON/TOML)","Understanding of regex or glob patterns for argument validation","Knowledge of which CLI commands and arguments are safe to expose"],"input_types":["policy configuration file","command invocation request with arguments"],"output_types":["policy validation result (allow/deny)","detailed rejection reason if policy violated"],"categories":["safety-moderation","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-mcp-cli-adapter__cap_2","uri":"capability://tool.use.integration.mcp.tool.schema.generation.from.cli.metadata","name":"mcp tool schema generation from cli metadata","description":"Automatically generates MCP tool schemas (name, description, input parameters, return types) by introspecting CLI tools' help text, man pages, or explicit metadata. The adapter parses CLI help output (via --help or --version flags) or reads structured metadata files to construct MCP-compliant tool definitions without manual schema writing. This enables rapid onboarding of new CLI tools into the MCP ecosystem.","intents":["I want to expose a CLI tool to an LLM agent without manually writing MCP schema definitions","I need to keep MCP tool schemas in sync with CLI tool updates automatically","I want to generate parameter descriptions and type hints from existing CLI documentation"],"best_for":["Developers managing large numbers of CLI tools who want to minimize schema maintenance","Teams with rapidly evolving CLI tools that need schema updates to stay current","Rapid prototyping scenarios where manual schema writing is a bottleneck"],"limitations":["Help text parsing is fragile — non-standard help formats (custom layouts, unusual flag styles) may fail to parse correctly","Generated schemas may lack semantic richness — descriptions are extracted verbatim from help text, which is often terse or unclear","No type inference for complex parameters — all arguments typically inferred as strings, losing information about numeric ranges, file paths, or enum values","Requires CLI tools to support --help flag — tools with non-standard help mechanisms cannot be introspected"],"requires":["CLI tool installed and accessible in PATH","CLI tool must support --help or similar documentation flag","Optional: structured metadata file if help text parsing is insufficient"],"input_types":["CLI tool path and name","optional metadata file (JSON/YAML)"],"output_types":["MCP tool schema (JSON)","parameter definitions with types and descriptions"],"categories":["tool-use-integration","code-generation-editing"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-mcp-cli-adapter__cap_3","uri":"capability://safety.moderation.argument.validation.and.sanitization.before.execution","name":"argument validation and sanitization before execution","description":"Validates and sanitizes command arguments before subprocess execution to prevent injection attacks and policy violations. The adapter checks arguments against configured patterns (regex, allowlists, type constraints), escapes shell metacharacters, and rejects malformed input. This prevents common CLI injection attacks where an LLM agent might inadvertently construct commands with embedded shell operators or path traversal sequences.","intents":["I need to prevent command injection attacks where an LLM agent passes malicious arguments to CLI tools","I want to ensure arguments conform to expected formats (e.g., file paths, URLs, numeric values)","I need to sanitize user-controlled input before passing it to CLI tools"],"best_for":["Production deployments where LLM agents have access to powerful CLI tools","Multi-tenant systems where one agent's malicious input could affect other tenants","Security-sensitive applications (financial, healthcare, infrastructure management)"],"limitations":["Sanitization is context-dependent — escaping rules differ between shell, SQL, and other contexts, and the adapter may not handle all cases correctly","Overly aggressive sanitization can break legitimate use cases (e.g., escaping pipes in grep patterns when pipes are intentional)","No protection against time-based attacks or resource exhaustion via crafted arguments (e.g., regex DoS in argument validation patterns)","Validation rules must be configured per-command — no universal sanitization strategy"],"requires":["Validation rules configured in security policy","Understanding of which argument formats are safe for each CLI tool"],"input_types":["command arguments as strings or structured parameters"],"output_types":["sanitized arguments safe for subprocess execution","validation error if arguments violate policy"],"categories":["safety-moderation","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-mcp-cli-adapter__cap_4","uri":"capability://automation.workflow.subprocess.execution.with.output.capture.and.error.handling","name":"subprocess execution with output capture and error handling","description":"Executes validated CLI commands in isolated subprocess environments, captures stdout/stderr/exit codes, and marshals results into MCP response format. The adapter uses language-native subprocess APIs (Python's subprocess module or Node.js child_process) to spawn processes with controlled environment variables, working directories, and resource limits. Output is buffered and returned as structured MCP tool results with exit code semantics.","intents":["I want to execute a CLI command and get structured output (stdout, stderr, exit code) back to the LLM agent","I need to run commands with specific environment variables or working directories","I want to handle command failures gracefully without crashing the MCP server"],"best_for":["LLM agents that need to invoke system utilities (grep, curl, jq, etc.)","Automation workflows that bridge CLI tools and AI decision-making","Developers building agent-driven infrastructure management tools"],"limitations":["Output buffering in memory — commands producing large outputs (>100MB) may cause memory exhaustion or OOM kills","No streaming output support — entire command output must complete before MCP response is sent, increasing latency for long-running commands","Subprocess inherits parent process environment — sensitive environment variables (API keys, credentials) may leak unless explicitly filtered","No built-in timeout enforcement — long-running or hanging commands can block the MCP server indefinitely without external process management"],"requires":["Python 3.8+ (subprocess module) or Node.js 16+ (child_process module)","CLI tool installed and executable in system PATH","Sufficient system resources (memory, file descriptors) for subprocess spawning"],"input_types":["command string","argument array","environment variable overrides (optional)","working directory (optional)"],"output_types":["MCP tool result with stdout (string), stderr (string), exit_code (integer)","error message if subprocess fails to spawn"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-mcp-cli-adapter__cap_5","uri":"capability://safety.moderation.environment.variable.filtering.and.isolation","name":"environment variable filtering and isolation","description":"Filters and isolates environment variables passed to CLI subprocesses to prevent information leakage and enforce security boundaries. The adapter maintains an allowlist of safe environment variables (e.g., PATH, HOME, LANG) and blocks access to sensitive variables (e.g., AWS_SECRET_ACCESS_KEY, GITHUB_TOKEN). Subprocesses inherit only explicitly allowed variables, reducing the attack surface if a CLI tool is compromised.","intents":["I need to prevent CLI tools from accessing sensitive credentials or API keys in environment variables","I want to ensure CLI tools only see the environment variables they need to function","I need to isolate multiple CLI tool invocations so they don't interfere with each other's environment state"],"best_for":["Production systems where CLI tools may be untrusted or have unknown dependencies","Multi-tenant environments where environment isolation is critical","Security-hardened deployments with strict credential management policies"],"limitations":["Allowlist must be maintained manually — new environment variables required by CLI tools must be explicitly added to the allowlist","No dynamic environment variable generation — cannot inject temporary credentials or session tokens without pre-configuration","Filtering is static — cannot adapt environment based on command type or runtime conditions","Does not prevent information leakage through other channels (e.g., CLI tool reading /proc/self/environ or accessing parent process memory)"],"requires":["Configuration defining allowed environment variables","Understanding of which environment variables each CLI tool requires"],"input_types":["environment variable allowlist configuration","parent process environment"],"output_types":["filtered environment dictionary for subprocess"],"categories":["safety-moderation","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-mcp-cli-adapter__cap_6","uri":"capability://automation.workflow.mcp.server.lifecycle.management.and.tool.registration","name":"mcp server lifecycle management and tool registration","description":"Manages the MCP server lifecycle (startup, shutdown, signal handling) and dynamically registers CLI tools as MCP tools. The adapter initializes the MCP server, loads security policies and tool definitions from configuration, registers each CLI tool with the MCP protocol, and handles graceful shutdown. This enables the adapter to function as a standalone MCP server that can be connected to Claude Desktop, Cline, or other MCP clients.","intents":["I want to run the MCP adapter as a standalone server that Claude Desktop or other MCP clients can connect to","I need to load CLI tool definitions from a configuration file and register them with the MCP protocol","I want the adapter to handle startup/shutdown cleanly without leaving orphaned processes"],"best_for":["Developers integrating CLI tools into Claude Desktop or other MCP-compatible clients","Teams running MCP servers in containerized or serverless environments","Users who want a turnkey solution for exposing CLI tools to LLM agents"],"limitations":["No hot-reload of tool definitions — configuration changes require server restart","No built-in service discovery — CLI tools must be explicitly listed in configuration, not auto-discovered","Limited observability — no built-in logging, metrics, or health checks beyond basic error messages","Single-threaded or limited concurrency — may not handle high volumes of concurrent tool invocations efficiently"],"requires":["MCP protocol implementation (likely using mcp Python or Node.js library)","Configuration file with tool definitions and security policies","Network connectivity if running as a remote MCP server"],"input_types":["configuration file (YAML/JSON)","MCP client connection requests"],"output_types":["MCP server listening on stdio or network socket","tool registration confirmations"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0}],"trust":{"score":25,"verified":false,"data_access_risk":"moderate","permissions":["MCP server runtime (Claude Desktop, Cline, or compatible MCP host)","Python 3.8+ or Node.js 16+ (depending on adapter implementation)","CLI tools to be installed and accessible in system PATH","Valid MCP configuration file defining allowed commands and security policies","Configuration file in adapter's supported format (YAML/JSON/TOML)","Understanding of regex or glob patterns for argument validation","Knowledge of which CLI commands and arguments are safe to expose","CLI tool installed and accessible in PATH","CLI tool must support --help or similar documentation flag","Optional: structured metadata file if help text parsing is insufficient"],"failure_modes":["No built-in process resource limits (CPU, memory, timeout) — requires external process management or wrapper scripts","Subprocess execution inherits parent process environment variables, creating potential information leakage if sensitive env vars exist","No streaming output support — entire command output buffered in memory before MCP response, limiting use with large output streams","Security policy enforcement is declarative only — no runtime behavior analysis or anomaly detection","Policy syntax and validation logic not standardized — implementation-specific, making policies non-portable across MCP adapters","No runtime policy updates without restarting the MCP server — policies are loaded once at startup","Argument validation uses pattern matching (regex or glob) which can be bypassed with shell metacharacters or encoding tricks if not carefully designed","No audit logging built-in — requires external integration to track policy violations and command execution history","Help text parsing is fragile — non-standard help formats (custom layouts, unusual flag styles) may fail to parse correctly","Generated schemas may lack semantic richness — descriptions are extracted verbatim from help text, which is often terse or unclear","builder identity is not verified yet","no observed match outcomes yet"],"rank_breakdown":{"adoption":0.05,"quality":0.24,"ecosystem":0.39999999999999997,"match_graph":0.25,"freshness":0.52,"weights":{"adoption":0.25,"quality":0.25,"ecosystem":0.15,"match_graph":0.23,"freshness":0.12}},"observed_outcomes":{"matches":0,"success_rate":0,"avg_confidence":0,"top_intents":[],"last_matched_at":null},"maintenance":{"status":"active","updated_at":"2026-06-17T09:51:03.578Z","last_scraped_at":"2026-05-03T14:00:15.503Z","last_commit":null},"community":{"stars":null,"forks":null,"weekly_downloads":null,"model_downloads":null,"model_likes":null}},"distribution":{"claim_url":"https://unfragile.ai/submit?claim=mcp-cli-adapter","compare_url":"https://unfragile.ai/compare?artifact=mcp-cli-adapter"}},"signature":"UM4geW+r85kky+12zeMDawU54eoVaUeMuhE/7ncrp3TN0OQgdh94S5okrQeMf4Ec9iEgh9w/sC7/mBdnUTvFDg==","signedAt":"2026-06-21T10:39:09.110Z","signedBy":"unfragile.ai","version":1},"_links":{"self":"https://unfragile.ai/api/v1/passport/mcp-cli-adapter","artifact":"https://unfragile.ai/mcp-cli-adapter","verify":"https://unfragile.ai/api/v1/verify?slug=mcp-cli-adapter","publicKey":"https://unfragile.ai/api/v1/trust-passport-public-key","spec":"https://unfragile.ai/trust","schema":"https://unfragile.ai/schema.json","docs":"https://unfragile.ai/docs"}}