The Agent Skills Directory

[EXTERNAL_DOWNLOADS]: The skill instructs the user to execute the command npx @hummbl/mcp-server to install and run an external package. The origin of this package is not listed among the trusted vendors, and its source code is not provided for verification.
[COMMAND_EXECUTION]: The documentation contains multiple shell commands for initializing projects, installing dependencies, and configuring the environment, including npm install @modelcontextprotocol/sdk and npx tsc --init.
[DATA_EXFILTRATION]: The skill contains a 'Telemetry & Analytics' section that outlines how to implement event tracking and latency monitoring. It provides a TypeScript interface for logging usage data (event names, user IDs, latencies) and mentions sending this data to an analytics service in production mode.
[INDIRECT_PROMPT_INJECTION]: The skill provides a template for an MCP server that processes user-provided text through tool calls (e.g., 'analyze-perspective').
Ingestion points: Data enters through request.params.arguments in the tools/call handler defined in the code examples.
Boundary markers: No specific delimiters or boundary markers are implemented in the provided code snippets to distinguish between instructions and data.
Capability inventory: The implementation uses the better-sqlite3 library for database operations and supports stdio transport for communication with the Claude Desktop client.
Sanitization: While the 'Implementation Guidelines' mention input validation with Zod and sanitization, the provided code examples do not demonstrate these safety measures.

mcp_server_developer