hammer-mcp

ProjectSocietyStudio/hammer-mcp
★ 0 stars TypeScript Code/Dev Tools Updated 4d ago
MCP server for Source-engine map work: read and lint VMF, edit without reformatting, measure BSP against format limits, compile under Wine (stock or Hammer++)
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Quick Install

Copy the config for your editor. Some servers may need additional setup — check the README.

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "hammer-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "ProjectSocietyStudio/hammer-mcp"
      ]
    }
  }
}

README Excerpt

An MCP server for Source-engine map work. It reads `.vmf` and `.bsp` files, lints a map against the game's own FGD, edits a `.vmf` without reformatting it, patches a compiled map's entities without recompiling, drives the compilers under Wine — stock **or Hammer++** — and measures a map against the limits of the format.

Tools (20)

LIGHTINGalign_facesbackendclip_solidsdelete_solidsedit_vmfgamegameProfilesgroup_solidshealthhollow_solidsmove_verticespaint_displacementread_brush_volumesread_bsp_entitiesread_bsp_inforead_compile_logread_displacementsread_entity_reportread_fgd_class

Topics

bspgarrys-modhammer-editorlevel-designmappingmcpmodel-context-protocolsource-enginevalvevmf