About Simdmapper MCP
Simdmapper MCP is an MCP server published by JunyangShao in the Developer Tools category: a simple MCP server that tells the agent how to verify its simd instruction is correctly mapped to simd/archsimd intrinsics.
The repository has 3 stars and 0 forks, with the last commit 8 months ago. Six months or more without a commit doesn't mean the server is broken, but check the open issues before depending on it in production.
Install
git clone https://github.com/JunyangShao/simdmapper-mcpThis server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.
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- ✓Tests presentA test suite exists in the repository.
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README
Go SimdMapper MCP Server
This tool provides a mapping from Go assembly SIMD instructions to archsimd Go API calls. It can be used directly as a CLI tool or as a Model Context Protocol (MCP) server.
Installation
From Source
go build -o simdmcp main.go
Usage
CLI Mode
You can run the tool directly from the command line by providing the assembly instruction as an argument.
Example:
./simdmcp "VPSUBD X2, X9, X2"
Output:
if archsimd.X86.AVX() {
X2 = X9.Sub(X2) \\ X9 is of type Int32x4, X2 is of type Int32x4, X2 is of type Int32x4
}
// Or
if archsimd.X86.AVX() {
X2 = X9.Sub(X2) \\ X9 is of type Uint32x4, X2 is of type Uint32x4, X2 is of type Uint32x4
}
Don't forget to escape special characters when you are using CLI input.
MCP Server Mode (gemini-cli)
To use this tool with gemini-cli (or other MCP clients), configure the client to run this binary. The server communicates via standard input/output (stdio).
configuration:
If your gemini-cli uses a configuration file (typically ~/.gemini/settings.json or similar), add this server to the mcpServers section:
"mcpServers": {
"simd_mapper": {
"command": "/absolute/path/to/simdmcp-bin"
}
}
Once configured, the agent will have access to the go_simdmapper tool and can use it to verify SIMD mappings.
Consider using the gopls MCP in synergy!
README fetched from the repository 7 days ago. The original is authoritative.