gospy

Go Process Inspector

A tool for inspecting and analyzing running Go processes, including goroutine states, memory statistics, and binary information.

Features

• View detailed goroutine information (status, scheduling info)
• Analyze process memory statistics
• Cross-platform support (Linux and macOS)
• Terminal UI for interactive inspection
• HTTP API for programmatic access
• mcp server

Installation

go install github.com/monsterxx03/gospy@latest

Usage

CLI Interface

# Interactive terminal UI
sudo gospy top --pid <pid>

# HTTP API server
sudo gospy serve --port 8974

# Get process summary
sudo gospy summary --pid <pid>

# Get process summary in JSON format
sudo gospy summary --pid <pid> --json

Summary Command Options

• --pid/-p - Target process ID (required)
• --bin/-b - Path to binary file (optional)
• --json/-j - Output results in JSON format

API Endpoints

• GET /goroutines?pid=<pid> - List all goroutines
• GET /memstats?pid=<pid> - Get memory statistics
• GET /runtime?pid=<pid> - Get runtime version info

MCP Server

The MCP server provides an http (streamableHTTP) endpoint. To enable:

>>> sudo gospy serve --enable-mcp --port 8974

Starting API server on port 8974
Endpoints:
  GET /runtime?pid=<PID>     - Get runtime info
  GET /goroutines?pid=<PID> - Get goroutines list
  GET /memstats?pid=<PID>   - Get memory stats
  GET /mcp   - MCP http endpoint

Available MCP tools:

• goroutines - Dump goroutines for a go process
• gomemstats - Dump memory stats for a go process
• goruntime - Dump runtime info for a go process
• pgrep - Find pid from process name

Config in cursor

Terminal UI Controls

• q - Quit
• r - Refresh data
• s - Suspend/Resume top view
• / - Search/filter goroutines

Terminal UI Screenshot

Building from Source

git clone https://github.com/monsterxx03/gospy.git
cd gospy
make

Requirements

• Go 1.20+
• Linux or macOS (Apple Silicon only)
• Root privileges (required for memory access)

Root Privileges

gospy requires root privileges to:

• Read process memory (/proc//mem on Linux)
• Access Mach APIs on macOS

Run with sudo:

sudo gospy top --pid <pid>

For development/debugging, you may want to:

1. Build the binary first: make
2. Run with sudo: sudo ./gospy [command]

Credits

Version 0.7.0 was completely rewritten from scratch with aider, which wrote >90% of the code. Additional assistance from:

• DeepSeek (R1 + V3 models) - AI coding assistant

Total AI compute cost: ~$2 USD

License

MIT - See LICENSE file for details.