TIL: a gitignored sitemap.xml is stale on every machine except the builder
My IndexNow script read public/sitemap.xml and sent 93 URLs. The live sitemap had 123. The local copy is gitignored, so it only updates when I build.
Til
TIL: an MCP header with ${VAR} reads the agent .env, not your shell
My MCP server answered 401 even though the API key worked. The header sent the literal text ${VAR} because the variable was only in my shell.
TIL: fix a dev-only Dependabot alert with a pnpm override
A plain pnpm update would not move a transitive dependency pinned by its parent. A one-line pnpm override did, and GitHub closed the alert.
TIL: `brew install` warns when another copy of the tool sits earlier on your PATH
I had three copies of one CLI on my PATH. Homebrew warned that the new one would never run by name, and which -a showed the shadowing.
TIL: in SQLite a TEXT column is greater than every number, so `ts > 1e12` matches everything
A TEXT-typed timestamp column compared against a number is always greater, so the filter matched every row. Casting the column fixed it.
TIL: a git worktree runs hooks from the main checkout .git/hooks, not its own files
I edited a pre-push hook in a worktree and nothing changed. Git was running the installed copy from the main repo.
TIL: Vite uses the nearest tsconfig.json and ignores `include`, so JSX silently fell back to the classic runtime
Hundreds of tests failed with React is not defined. The fix was one line in the tsconfig that the component files actually resolve to.
TIL: a pipe into tail returns tail exit code, so a failed push looks like success
A failed git push piped into tail still exited 0, and the script moved on. set -o pipefail makes the pipeline report the failure.