What is the EffectFence MCP server?
Stops agents double-firing side effects: 1,000 racing duplicates, exactly one execution.
How to install EffectFence
Copy-paste configuration for popular MCP clients.
transport: stdio
Config generated by PluginBench — verify against the source before use.Claude Desktop
~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"effectfence": {
"command": "npx",
"args": [
"-y",
"effectfence"
]
}
}
}Cursor
~/.cursor/mcp.json
{
"mcpServers": {
"effectfence": {
"command": "npx",
"args": [
"-y",
"effectfence"
]
}
}
}Windsurf
~/.codeium/windsurf/mcp_config.json
{
"mcpServers": {
"effectfence": {
"command": "npx",
"args": [
"-y",
"effectfence"
]
}
}
}VS Code
.vscode/mcp.json
{
"servers": {
"effectfence": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"effectfence"
]
}
}
}Claude Code
claude mcp add effectfence -- npx -y effectfenceRelated MCP servers
once
Active
Run a side effect exactly once under retries, redelivery, and concurrent workers.
0
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