Llm

In a git worktree whose node_modules was a symlink to the main checkout, tsc reported TS2724 "has no exported member" for a function the worktree exported. pnpm links workspace packages with relative symlinks, and those resolve inside the main checkout, so typecheck and tests ran against the old source of every workspace package.

A Next.js 15 dev server returned 500 with "TypeError: Cannot read properties of undefined (reading 'length')" from a generated page.js. The code at fault was webpack's installChunk: a second Next process, here a coding agent's build and dev server, was writing into the same .next directory.

Design notes from a Go MCP server in front of a shared password vault: annotations that never fire, schema tags that enforce nothing, a fence the JSON encoder rewrites, and error paths that talk to the model.