batch-deps-upgrade - SKILL.md Agent Skill

name: batch-deps-upgrade description: Batch all open Dependabot dependency upgrade PRs into a single PR disable-model-invocation: true

Batch all open Dependabot dependency upgrade PRs into a single PR for this repository.

Step 1: Discover

Run: gh pr list --repo XRPLF/xrpl.js --label dependencies --state open --limit 500 --json number,title,headRefName,body,url

Parse each PR to extract package names and versions. Dependabot PRs come in two formats:

Single-package PRs: title is Bump <pkg> from <old> to <new> — parse from title
Grouped PRs (e.g. #3266, #3051, #3013): title is bump <pkg1> and <pkg2> with no versions — parse from PR body, which contains a structured list of package updates with version ranges

If any PR can't be parsed from either title or body, flag it for manual review. Build a table of all proposed upgrades. Report the table to the user before proceeding.

Step 2: Apply

Create a branch from main: deps/batch-deps-upgrade-YYYY-QN (use current year and quarter)
Check for peer dependency conflicts before upgrading. For each proposed upgrade, run npm ls <pkg> and check if any workspace package pins a peer dep that would block the upgrade (e.g., @xrplf/eslint-config@^3 requires eslint@^9, blocking eslint 10). Mark these as Skipped (peer dep conflict:
) and do not attempt them.
For each remaining Dependabot PR, determine if it's a direct dep (listed in a package.json) or transitive dep (only in package-lock.json):
- Direct deps: update the version in the relevant package.json file(s)
- Transitive deps: run npm update <pkg> to update within semver range
Run npm install to update package-lock.json. Do NOT delete package-lock.json and regenerate from scratch — this can change hoisted dependency resolution and break builds even when no versions changed.
Diff package.json and package-lock.json against main to classify each Dependabot PR as:
- Upgraded: version changed
- No-op: version was already current or newer
If any upgrade changes the public API of a package (new errors, changed return types, removed functionality) and result in a breaking change, add an entry under ## Unreleased in that package's HISTORY.md.
Verify completeness: every PR from step 1 must have a status (Upgraded, No-op, or Skipped). If any PR is unaccounted for, stop and report it before proceeding.

Step 3: Validate

Run the full test suite in order:

npm run build && npm run lint
npm test
Start xrpld Docker container (based on CONTRIBUTING.md):
- Pre-run cleanup (in case a previous run left a container behind): docker rm -f xrpld-service 2>/dev/null || true
- Start the container: docker run --detach --rm --publish 6006:6006 --volume "$PWD/.ci-config:/etc/xrpld/" --name xrpld-service rippleci/xrpld:develop --standalone
- Wait for port 6006 with a bounded timeout and halt on failure:
```
SECONDS=0
until nc -z localhost 6006 || [ $SECONDS -gt 120 ]; do sleep 2; done
if ! nc -z localhost 6006; then
  echo "Error: xrpld did not start within 120s"
  docker logs xrpld-service
  exit 1
fi
```
- Run: npm run test:integration && npm run test:browser
- Stop container: docker stop xrpld-service (auto-removed via --rm)
npm run test:faucet

If any step fails, attempt to fix the breaking change with code modifications before rolling back. Common patterns:

BigNumber.js major bumps: v10+ throws on invalid input instead of returning NaN. Wrap new BigNumber(val) calls in try-catch where the code previously checked for NaN.
ESM-only packages (e.g., https-proxy-agent): Add transform entries and transformIgnorePatterns exclusions in jest.config.base.js so Jest can parse ESM imports.
Type compatibility (e.g., @scure/base 2.0 changing Uint8Array generics): Widen variable type annotations (e.g., let buf: Uint8Array = ... instead of let buf = ...).
Hoisting breakage (e.g., webpack-merge): If a transitive dep's major version is shadowed by a different transitive dep's older version, add the correct version as an explicit dependency.

Only roll back and mark as Skipped if:

The fix requires a large-scale migration (e.g., TypeScript moduleResolution changes across the entire monorepo)
The upgrade is blocked by an external peer dependency constraint you cannot update

If a failure persists after investigation and you cannot identify a fix, roll back the upgrade and mark it as Skipped. Re-run validation until green.

Step 4: Generate Outputs

Do NOT commit or create a PR. Instead, generate the following outputs for the human to use:

Code changes note — write a markdown file (.claude/skills/batch-deps-upgrade/code-changes.md) documenting every non-package.json source code change, explaining what broke, why, and the minimal fix applied.
Commit message — output a concise commit message the human can copy-paste into git commit -m "...". Format: chore(deps): quarterly batch dependency upgrade YYYY-QN followed by a brief summary of upgrades, skips, and removals.
PR description — write a markdown file (.claude/skills/batch-deps-upgrade/pr-description.md) following the repo's PR template (.github/pull_request_template.md):
- For "Type of Change", determine dynamically:
  - Check "Breaking change" ONLY if the upgrade visibly changes the library's public API (e.g., error messages, return types, removed functions). This aligns with whether a HISTORY.md entry was added in Step 2.6.
  - Otherwise, do not check any Type of Change — dependency upgrades are maintenance and don't fit "Refactor" (which means restructuring code without behavior change). Note in the PR body that the upgrade is maintenance.
- Include a "Superseded Dependabot PRs" section with a table: PR (linked), Package, From, To, Status, MajorVersionUpgrade
  - Status values: Upgraded, No-op (reason), Skipped (peer dep conflict / CI failure: error)
  - MajorVersionUpgrade: No if the major version number did not change. Otherwise Yes plus a link for each major version crossed. For example, 7.x → 9.x yields Yes ([v8](url), [v9](url)). Each link should point to the package's release notes or changelog for that major version. Verify each link returns HTTP 200 and has meaningful content (e.g., curl -sL -o /dev/null -w "%{http_code}" <url>); if a package doesn't publish per-version GitHub releases (e.g., TypeScript sometimes skips x.0.0/x.0.1 tags, bignumber.js puts details in CHANGELOG.md), fall back to the CHANGELOG.md file or the closest valid release tag.
- Closing instructions with two paragraphs:
  1. "After merging, close the following superseded PRs (Skipped ones remain open for future handling): #X, #Y, #Z" — list only Upgraded and No-op PRs.
  2. "The following PRs were Skipped and should remain open: #A (package-a), #B (package-b), ..." — annotate each with the package name. These stay open so Dependabot keeps rebasing them.