DevOps Center Conflict & Deploy-Failure Resolution

Diagnoses and resolves what blocks a DevOps Center promotion of a work item's feature branch. DevOps Center is Git-backed: each work item is a feature branch and each pipeline stage has a target branch. A promotion can fail two ways — a Git merge conflict (two work items changed the same metadata) or a deployment failure (the deploy itself errors, often on a missing dependency). There is no sf devops conflict CLI command; both cases are diagnosed and resolved with standard git against the connected repository. This skill runs in a local clone of that repo.

Scope

• In scope: (a) Detect merge conflicts between a work item's feature branch and the target stage branch (non-destructively), resolve conflicted files (choose a side or manually merge conflict markers), commit, and push the feature branch DevOps Center tracks; (b) Diagnose a promotion deploy failure — classify it as a merge conflict vs. a deploy error, parse a missing dependency, and determine whether a full promotion can fix it (the component exists on the feature branch) or the component must be added first
• Out of scope: Running the promotion, full promotion, or combine (use dx-devops-promote), creating/updating work items or their status (use dx-devops-work-item-manage), deploying metadata directly to an org, pipeline or project setup (separate skills)

Required Inputs

Gather or infer before proceeding:

• Local clone of the DevOps Center connected Git repository (the agent runs git commands here). Confirm the working tree is clean before starting.
• Feature branch name — the branch backing the work item. If the user gives a work item ID/subject instead, resolve it to its branch (see the Reference File Index for the sf devops work-item lookup).
• Target stage branch name — the branch of the pipeline stage the work item promotes into (e.g. the integration/UAT branch).
• Remote name — defaults to origin.
• Deploy error text (deploy-failure track only) — the promotion's error output/summary. Needed to classify the failure and parse a missing dependency. Capture it to a file or pipe it into the diagnosis script.

Defaults unless specified:

• Remote: origin
• Merge direction: merge the target stage branch into the feature branch (reconcile the work item with where it is going)

If the user names both branches ("resolve conflicts on feature/WI-101 against uat"), proceed. If they give a work item, resolve its branch first.

Workflow

DevOps Center promotion blockers are Git-level. Detection and diagnosis are deterministic (scripts); resolving each conflicted file requires judgment (prose). Never resolve without first detecting on a clean tree.

Route first. Pick the track from the user's situation:

• Merge conflict track — the user wants a pre-promotion conflict check, or a promotion failed and the cause is (or is suspected to be) a merge conflict → Phases 1–4 below.
• Deploy-failure track — a promotion's deploy failed with an error message and the user wants to know why and how to fix it → Phase D below. If Phase D classifies the failure as a merge conflict, fall through to the merge-conflict track.

Phase 1 — Authenticate and orient

1. Confirm the local repo and clean tree. Run in the repo clone:

   git rev-parse --is-inside-work-tree && git status --porcelain
   

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   • If git status --porcelain prints anything, the tree is dirty — instruct the user to commit or stash first. A trial merge on a dirty tree is unsafe.
2. Resolve a work item to its branch (only if the user gave a work item, not a branch). Verify org auth with sf org display --json; if it fails, tell the user to run sf org login web --set-default --alias <alias>. Then look up the branch — see references/git-conflict-resolution.md.

Phase 2 — Detect (non-destructive)

3. Run the detection script. It fetches, trial-merges the target branch into the feature branch without committing, lists conflicted files, and aborts the trial so the tree is left untouched:

   scripts/detect-conflicts.sh <feature-branch> <target-branch> [remote]
   

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   • Exit 0 = clean merge (no conflicts) → report "safe to promote" and STOP.
   • Exit 2 = conflicts found → the script prints the conflicting file list; proceed to Phase 3.
   • Exit 1 = error (dirty tree, unknown branch, fetch failure) → report the error and STOP; do not treat an error as "no conflicts".

Phase 3 — Resolve

4. Start the real merge to bring conflict markers into the working tree:

   git checkout <feature-branch>
   git merge --no-ff <remote>/<target-branch>
   

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   List the conflicted files deterministically:

   git diff --name-only --diff-filter=U
   

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5. Resolve each conflicted file — this is the judgment step:
   • When one side is unambiguously correct, take it: git checkout --ours -- <file> (keep the feature branch's version) or git checkout --theirs -- <file> (take the target branch's version). For DevOps Center, "ours" is the feature branch, "theirs" is the target stage branch.
   • When both sides contain needed changes (divergent edits to the same component), open the file and manually merge — reconcile the <<<<<<< / ======= / >>>>>>> regions into a single correct version, preserving both intents. Be especially careful with XML metadata (.xml, .object-meta.xml, .field-meta.xml): keep the file well-formed and do not duplicate elements.
   • Stage each resolved file: git add <file>.
6. Confirm no markers remain before committing:

   git diff --check
   git diff --name-only --diff-filter=U
   

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   • git diff --check must report nothing, and the unmerged-file list must be empty. If either shows leftovers, keep resolving — do not commit.

Phase 4 — Finalize and report

7. Commit and push the resolution to the tracked feature branch so DevOps Center picks it up:

   git commit --no-edit          # completes the merge with the default merge message
   git push <remote> <feature-branch>
   

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8. Report the outcome:
   • No conflicts: "No merge conflicts between <feature> and <target>. Safe to promote."
   • Resolved: list the files resolved and how (took a side vs. manual merge), and state that the feature branch was pushed. Then hand off: "Re-validate and promote via dx-devops-promote."

Phase D — Diagnose a deployment failure

Use this track when a promotion's deploy failed with an error and the user wants to know why and how to fix it. Diagnosis is deterministic (a script); do not eyeball the error.

D1. Capture the deploy error text to a file, or pipe it directly into the diagnosis script.

D2. Run the diagnosis script from the repo clone. It classifies the failure, parses any missing dependency, and checks whether that component exists on the feature branch (via git show):

scripts/diagnose-deploy-failure.sh <error-file|-> <feature-branch> [target-branch] [remote]
# or:  <deploy command> 2>&1 | scripts/diagnose-deploy-failure.sh - <feature-branch> <target-branch>

Act on the exit code and the printed REASON / RECOMMENDATION:

• Exit 0 (dependency_in_feature_branch) → the missing component exists on the feature branch but was left out of the deployed set. A full promotion should fix it. Report this, confirm with the user, and hand off to dx-devops-promote to run a full promotion. This skill does not promote.
• Exit 2 (merge_conflict) → the failure is a merge conflict, not a deploy error. Fall through to the merge-conflict track (Phase 1 onward).
• Exit 3 (dependency_not_in_feature_branch) → the missing component is not on the feature branch, so promoting cannot supply it. Report that the component must be added and committed to the feature branch (or the owning work item included) before promoting.
• Exit 4 (no_dependency_parsed) → the error is not a recognizable missing dependency. Report the raw error and advise fixing the underlying issue (e.g. test coverage, invalid metadata); a full promotion will not help.
• Exit 1 → environment/usage error (not in a git repo, unreadable error file) → report and stop.

D3. Report the diagnosis with the REASON, whether a full promotion can fix it, the missing component (if any) and where it lives, and the concrete next step. Never re-promote blindly — only recommend a full promotion when the diagnosis is dependency_in_feature_branch.

Rules / Constraints

Gotchas

Output Expectations

This skill produces a conflict-free feature branch or a deploy-failure diagnosis, not org changes:

• No conflicts: confirmation that the feature branch merges cleanly into the target stage branch — safe to promote
• Conflicts resolved: a merge commit on the work item's feature branch reconciling it with the target stage branch, pushed to the remote, plus a report of which files were resolved and how (took a side vs. manual merge)
• Deploy-failure diagnosis: a report stating the failure reason (merge conflict / missing dependency in-branch / missing dependency not-in-branch / unrecognized), whether a full promotion can fix it, the missing component and where it lives, and the concrete next step

No metadata is deployed and no org state is mutated. The deliverable is the pushed, conflict-free branch or the diagnosis and recommended next step.

Cross-Skill Integration

Reference File Index