9 tools from the Build MCP Server, categorised by risk level.
View the Build policy →build Runs a build command and returns structured success/failure with errors and warnings. Allowed commands: ant, bazel, bun, bunx, cargo, cmake, dotnet... 4/5 esbuild Runs the esbuild bundler and returns structured errors, warnings, and output files. 3/5 lerna Runs Lerna monorepo commands (list, run, changed, version) and returns structured package information. 4/5 nx Runs Nx workspace commands and returns structured per-project task results with cache status. 3/5 rollup Runs Rollup bundler and returns structured bundle output with errors and warnings. 3/5 turbo Runs Turborepo tasks and returns structured per-package results with cache hit/miss info. 3/5 vite-build Runs Vite production build and returns structured output files with sizes. 4/5 webpack Runs webpack build with JSON stats output and returns structured assets, errors, and warnings. 4/5 The Build MCP server exposes 9 tools across 2 categories: Write, Execute.
Use Intercept, the open-source MCP proxy. Write YAML rules for each tool — rate limits, argument validation, or deny rules — then run Intercept in front of the Build server.
Build tools are categorised as Write (1), Execute (8). Each category has a recommended default policy.
Open source. One binary. Zero dependencies.
npx -y @policylayer/intercept