missing-dockerignore-causes-repo-bloat-in-mcp-images

MCP server Docker images built with COPY . . and no .dockerignore bake in all repo content including documentation assets, benchmarks, and demo projects. This is a common pattern in MCP server repos pulled from GitHub. Always verify .dockerignore exists before building; add exclusions for assets/, *.md heavy dirs, benchmark suites, and showcase examples to keep images lean.