update-version

name	update-version
description	A skill that fetches the latest published version of vite-plus from the npm registry and updates the version string and all three hash values in `flake.nix`.
disable-model-invocation	false

Update vite-plus Version and Hashes

Step 1: Fetch the latest version from npm

Run the following to get the latest published version:

curl -s https://registry.npmjs.org/vite-plus/latest | jq -r '.version'

Read the current version from flake.nix. If the current version already matches the latest, report that the package is already up to date and stop.

Step 2: Update the version and URL in flake.nix

Rewrite the following lines in flake.nix with the new version:

• version = "X.Y.Z";
• The version string inside the fetchurl url

Leave hash unchanged for now — it will be updated in the next step.

Step 3: Update the fetchurl hash

Run the following to fetch the correct sha256 hash of the new npm tarball:

nix store prefetch-file --json --hash-type sha256 "https://registry.npmjs.org/vite-plus/-/vite-plus-<NEW_VERSION>.tgz"

Extract the hash field from the JSON output and update hash = "sha256-..."; in flake.nix.

Step 4: Update the outputHash of the prepared derivation

Temporarily replace outputHash in flake.nix with a dummy value:

outputHash = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";

Then run nix build 2>&1. Nix will print a hash mismatch error like:

error: hash mismatch in fixed-output derivation ...
  specified: sha256-AAAA...
       got:    sha256-xxxx...

Replace outputHash with the value shown after got:.

Step 5: Update npmDepsHash

Temporarily replace npmDepsHash in flake.nix with a dummy value:

npmDepsHash = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";

Then run nix build 2>&1 again and extract the correct hash from the got: line in the error output. Update npmDepsHash with that value.

Step 6: Verify the build

Run nix build and confirm it succeeds. Report the old version, the new version, and all updated hash values to the user.

Constraints

• nix build requires network access and may take a while.
• Always use SRI format for hashes: sha256-<base64>=.
• Steps 4 and 5 must be done in order — outputHash must be correct before buildNpmPackage is reached.
• Use sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA= as the dummy hash (44 A characters followed by =).