Managing Bot PRs (Dependencies, Codeflow, OneLoc)

This skill triages all open bot PRs in the MSBuild repo, produces a review dashboard, then optionally updates branches and bumps versions for merge readiness.

When to Use

• You want to see the status of all open bot PRs at a glance
• There are open dependency update / codeflow / OneLoc PRs that need merging
• You want to process all of them in one pass with a clickable summary

PR Categories

Category	Author	Title Pattern	Example
Dependency update	dotnet-maestro[bot]	[<branch>] Update dependencies from dotnet/<repo>	[vs18.3] Update dependencies from dotnet/arcade
Codeflow	dotnet-maestro[bot]	[<branch>] Source code updates from dotnet/dotnet	[vs18.3] Source code updates from dotnet/dotnet
OneLoc	dotnet-bot	Localized file check-in by OneLocBuild Task: ...	Localized file check-in by OneLocBuild Task: Build definition ID 9434: Build ID ...

Step-by-Step Procedure

Step 1: Gather All Bot PRs

Run two searches in parallel to find all open bot PRs:

1. Dependency updates + Codeflow:

   Search: is:open author:app/dotnet-maestro repo:dotnet/msbuild

2. OneLoc localization:

   Search: is:open author:dotnet-bot repo:dotnet/msbuild ("OneLocBuild" OR "Localized file check-in")

Step 2: Analyze Each PR (in parallel)

For each PR, query the following data using gh api graphql. Process PRs in parallel batches for speed.

gh api graphql -f query='
  query {
    repository(owner: "dotnet", name: "msbuild") {
      pullRequest(number: <PR_NUMBER>) {
        id
        title
        baseRefName
        headRefName
        mergeable
        reviewDecision
        commits(last: 1) {
          nodes {
            commit {
              statusCheckRollup {
                state
              }
            }
          }
        }
        reviews(last: 10) {
          nodes {
            state
            author { login }
          }
        }
        reviewThreads(first: 20) {
          nodes {
            isResolved
            comments(first: 1) {
              nodes { body author { login } }
            }
          }
        }
        files(first: 50) {
          nodes { path additions deletions }
          totalCount
        }
      }
    }
  }
'

From the response, extract:

• CI status: from statusCheckRollup.state — SUCCESS, FAILURE, PENDING, ERROR, EXPECTED, or null. Map ERROR to failure (❌) and EXPECTED to neutral (⚪) in the dashboard.
• Review decision: APPROVED, REVIEW_REQUIRED, CHANGES_REQUESTED
• Approvals: count and list of APPROVED reviews
• Review comments: any unresolved threads from the first 20 results (especially CHANGES_REQUESTED)
• Files changed: use totalCount for the file count; use the first 50 file paths from files.nodes for suspicious file detection
• Suspicious flag: check if any file paths are outside expected patterns (see below)

Suspicious File Detection

PR Category	Expected Files	Flag if...
Dependency update (arcade)	eng/**, global.json	Any file outside eng/ or global.json
Dependency update (roslyn/nuget/runtime)	eng/Version.Details.xml, eng/Version.Details.props	Any file outside eng/
Codeflow (dotnet/dotnet)	eng/Version.Details.xml	Any src/ files modified
OneLoc	**/xlf/*.xlf, **/Resources/*.resx	Any non-localization file, or reviewers flagging reverted translations

Step 3: Update Branches & Bump Versions (dependency PRs only)

For each dependency update PR:

3a. Update the PR branch

Use the GitHub GraphQL updatePullRequestBranch mutation — the exact equivalent of the "Update branch" button:

gh api graphql -f query='
  mutation {
    updatePullRequestBranch(input: {pullRequestId: "<NODE_ID>"}) {
      pullRequest { number headRefOid }
    }
  }
'

3b. Bump VersionPrefix (vs < 18.10 branches only)

Skip for vs18.10 and newer vs branches* - they don't need to increment the patch version with every dependency update anymore. Only bump for vs* branches that are older than vs18.10.

1. Read <VersionPrefix>X.Y.Z</VersionPrefix> from the target branch's eng/Versions.props
2. Increment patch: X.Y.Z → X.Y.(Z+1)
3. Checkout the PR branch, update the version, commit, push:

   git fetch origin <head-branch>
   git checkout <head-branch>
   # Edit eng/Versions.props: set <VersionPrefix> to X.Y.(Z+1)
   git add eng/Versions.props
   git commit -m "Bump VersionPrefix to X.Y.(Z+1)"
   git push origin <head-branch>

Note: The <VersionPrefix> line may be inline with <DotNetFinalVersionKind> — preserve that formatting.

Step 4: Produce the Dashboard

Output a single dashboard with all PRs grouped by category. This is the most important output — it lets the user click through and approve/reject each PR.

Format:

## 🚦 Dependency Update PRs

| PR | Branch | CI | Review | Files | Suspicious? | Link |
|----|--------|-----|--------|-------|-------------|------|
| #13281 | main ← roslyn | ✅ SUCCESS | ✅ APPROVED (1) | 2 | ✅ Clean | https://github.com/dotnet/msbuild/pull/13281 |
| #13310 | vs17.10 ← arcade | ❌ FAILURE | 🔶 REVIEW_REQUIRED | 14 | ✅ Clean (eng/ only) | https://github.com/dotnet/msbuild/pull/13310 |

## 🔄 Codeflow PRs

| PR | Branch | CI | Review | Files | Suspicious? | Link |
|----|--------|-----|--------|-------|-------------|------|
| #13258 | vs18.3 ← dotnet/dotnet | ✅ SUCCESS | 🔶 REVIEW_REQUIRED | 1 | ✅ Clean | https://github.com/dotnet/msbuild/pull/13258 |

## 🌐 OneLoc PRs

| PR | Branch | CI | Review | Files | Suspicious? | Link |
|----|--------|-----|--------|-------|-------------|------|
| #13290 | main | ⚪ None | ⛔ CHANGES_REQUESTED | 65 | ⚠️ Reverts translations | https://github.com/dotnet/msbuild/pull/13290 |

Status icons:

• CI: ✅ SUCCESS, ❌ FAILURE/ERROR, ⏳ PENDING, ⚪ None/EXPECTED
• Review: ✅ APPROVED, 🔶 REVIEW_REQUIRED, ⛔ CHANGES_REQUESTED
• Suspicious: ✅ Clean, ⚠️ with description

After the tables, add a summary:

N PRs total. M ready to merge, K need reviews, J have CI failures, L blocked.

Version File Reference

The version is defined in eng/Versions.props:

<PropertyGroup>
  <VersionPrefix>18.3.3</VersionPrefix>
</PropertyGroup>

Branch Pattern	VersionPrefix Format	Bump Needed?	Pre-release Label
main	Major.Minor.0	No	preview
vs*	Major.Minor.Patch	Yes (+1)	servicing or preview

Troubleshooting

Problem	Solution
updatePullRequestBranch fails	PR may have conflicts GitHub can't auto-resolve — fall back to local git merge
Push rejected after version bump	Branch was updated by maestro; re-fetch and retry
VersionPrefix has no patch component (e.g. 18.6.0 on main)	This is main — skip the bump
OneLoc PR flagged as "reverting translations"	Do NOT merge — wait for updated translations