| name | review-ef-core-provider |
| description | Fan-out review of the current branch, an external PR, or a branch in another clone — runs each per-area reviewer over the files it owns and aggregates findings. Requires the superpowers plugin (errors out if it is not available). |
| argument-hint | [--all] [--model opus|sonnet|haiku] [<PR#> | <clone-path> [<base-ref> [<head-ref>]] | <base-ref> [<head-ref>]] |
| allowed-tools | Bash, Read, Glob, Grep, Write, Agent, Skill |
/review-ef-core-provider
Run the per-area reviewer sub-agents (.claude/agents/*-reviewer.md) over a diff range in parallel and produce one consolidated report. Three modes:
- Local range mode — diff the current repo's branch.
- External PR mode — fetch a GitHub PR and diff against its base.
- External clone mode — diff a branch in a different clone of this repo, while running with the current clone's reviewer briefs and
AGENTS.md files. Useful when the branch being reviewed lacks the latest agent/architecture updates that live in the current clone.
User args: $ARGUMENTS
Step 0 — Require the superpowers plugin (hard gate)
This skill depends on the superpowers plugin and will not run without it. Before doing anything else:
- Check the session's available-skills list (the
<system-reminder> skill listing) for an entry named superpowers:requesting-code-review.
- If it's missing, stop immediately. Do not parse args, diff, or dispatch reviewers. Emit exactly one error message to the user saying
/review-ef-core-provider requires the superpowers plugin to be installed and enabled. Then end the response.
- If present, invoke
superpowers:requesting-code-review now to frame the entire run — this review is the code-review request it describes — then continue to Step 1.
Step 1 — Determine scope
Parse $ARGUMENTS:
-
If --all is present, queue every reviewer in the tables below regardless of diff. Skip step 2's filtering.
-
If --model <name> is present, capture <name> (must be one of opus, sonnet, haiku) and pass it on every Agent dispatch in step 3. If absent, omit the model parameter so each reviewer falls back to its own frontmatter setting (see each agent file — most default to sonnet, the narrowest/most mechanical ones to haiku, and pr-summary-reviewer to inherit).
-
Examine the remaining non-flag tokens in priority order: first try external PR mode, then external clone mode, then local range mode.
External PR mode — if the first non-flag token looks like a PR number (a bare integer such as 297, or a #-prefixed integer such as #297), treat this as an external PR review:
- Run
gh pr view <PR#> --json number,title,url,baseRefName,headRefOid and capture the JSON.
- Parse
<owner>/<repo> from the PR URL (e.g. https://github.com/mongodb/mongo-efcore-provider/pull/297 → mongodb/mongo-efcore-provider).
- Run
git remote -v and find the remote whose fetch URL contains <owner>/<repo> (case-insensitive; works for both HTTPS and SSH URLs). If multiple remotes match, pick the first. If none match, fall back to trying upstream then origin.
- Run
git fetch <remote> refs/pull/<PR#>/head to bring the PR's head commit into FETCH_HEAD.
- Capture the head SHA:
git rev-parse FETCH_HEAD.
- Ensure the base branch is locally available:
git fetch <remote> <baseRefName> (safe even if already present). The tracking ref will be <remote>/<baseRefName>.
- Set base ref =
<remote>/<baseRefName> and head ref = the SHA from step 5.
- Set diff-repo = the absolute path of the current repo (
git rev-parse --show-toplevel).
- Record the PR metadata (number, title, URL) and the remote name for display in the step 4 report header.
- Capture a head label for display and filename use:
git -C "<clone>" rev-parse --abbrev-ref HEAD. If it returns the literal HEAD (detached), fall back to git -C "<clone>" rev-parse --short HEAD.
- Collect the remaining non-flag tokens (after the path) in order:
- First → base ref (default:
main)
- Second → head ref (default:
HEAD)
- Set diff-repo =
<clone>. Every git command in the rest of this skill must be run with git -C "<diff-repo>" …, and every file path passed to reviewers must be absolute (<diff-repo>/<repo-relative-path>). The parent agent's own working directory stays in the current clone so that AGENTS.md files and reviewer briefs continue to load from there — that's the point of this mode.
Local range mode — otherwise, the remaining non-flag tokens are refs in the current repo. Collect them in order:
- First token → base ref (default:
main)
- Second token → head ref (default:
HEAD)
- Set diff-repo = the absolute path of the current repo (
git rev-parse --show-toplevel).
Use <base>...<head> as the diff range throughout (three-dot syntax finds the merge base). Examples:
/review-ef-core-provider → main...HEAD in the current repo/review-ef-core-provider 297 → external PR #297 (fetches and diffs against its base branch)/review-ef-core-provider #297 → same as above/review-ef-core-provider HEAD~3 → HEAD~3...HEAD in the current repo (last 3 commits only)/review-ef-core-provider abc123 def456 → abc123...def456 in the current repo (arbitrary commit range)/review-ef-core-provider --all HEAD~5 HEAD~2 → all reviewers, commits HEAD5 through HEAD2 in the current repo/review-ef-core-provider ~/code/efcore-pr → review the current branch of the clone at ~/code/efcore-pr against its main/review-ef-core-provider ~/code/efcore-pr release/10.0 → review that clone's HEAD against its release/10.0/review-ef-core-provider ~/code/efcore-pr origin/main feature-x → review feature-x in that clone against origin/main
If --all was not passed, run git -C "<diff-repo>" diff --name-only <base>...<head>. If the result is empty, stop and tell the user the range has no changes — do not dispatch reviewers.
Step 2 — Map changed files → reviewers
Match each changed file against the table. A file may match more than one reviewer; queue all matches. Track files that match nothing — they go in an "Unmapped changes" section of the final report so coverage gaps are visible.
| Reviewer | Path patterns |
|---|
query-reviewer | src/MongoDB.EntityFrameworkCore/Query/** |
storage-reviewer | src/MongoDB.EntityFrameworkCore/Storage/** |
metadata-reviewer | src/MongoDB.EntityFrameworkCore/Metadata/** |
serialization-reviewer | src/MongoDB.EntityFrameworkCore/Serializers/**; src/MongoDB.EntityFrameworkCore/ChangeTracking/** |
public-api-reviewer | src/MongoDB.EntityFrameworkCore/Extensions/**; src/MongoDB.EntityFrameworkCore/Infrastructure/**; src/MongoDB.EntityFrameworkCore/Design/** |
diagnostics-reviewer | src/MongoDB.EntityFrameworkCore/Diagnostics/** |
value-generation-reviewer | src/MongoDB.EntityFrameworkCore/ValueGeneration/**; src/MongoDB.EntityFrameworkCore/Metadata/Conventions/MongoValueGenerationConvention.cs |
spec-conformance-reviewer | tests/MongoDB.EntityFrameworkCore.SpecificationTests/**; tests/MongoDB.EntityFrameworkCore.FunctionalTests/Utilities/**; tests/MongoDB.EntityFrameworkCore.FunctionalTests/Usings.cs |
vector-search-reviewer | files matching VectorIndex*, VectorSearch*, BinaryVector*, or VectorSimilarity* across src/ and tests/; src/MongoDB.EntityFrameworkCore/Metadata/VectorIndexOptions.cs; src/MongoDB.EntityFrameworkCore/Metadata/VectorIndexBuilder.cs; vector-search helpers in MongoDatabaseFacadeExtensions, MongoQueryableExtensions, MongoIndexBuilderExtensions, MongoPropertyBuilderExtensions |
encryption-reviewer | src/MongoDB.EntityFrameworkCore/CryptProvider.cs; ; files matching across and ; encryption properties on (, , , ); |
Test-folder mapping: per-area test folders mirror the src/ layout — tests/.../FunctionalTests/Query/, Storage/, Update/, Metadata/, Mapping/, Serialization/, ValueGeneration/, Design/ — and route to the corresponding src/ area reviewer. The Encryption/ test folder routes to encryption-reviewer, and the test utilities at tests/.../FunctionalTests/Utilities/ route to spec-conformance-reviewer. SpecificationTests/<Area>/ test folders route to both the matching area reviewer and spec-conformance-reviewer (the area owns the assertion logic; spec-conformance owns the fixture / inheritance discipline).
Meta-mapping for reviewer definitions: a change to .claude/agents/<name>-reviewer.md is reviewed by that same reviewer (e.g. .claude/agents/query-reviewer.md → query-reviewer). The reviewer is best placed to judge whether its own brief still accurately characterizes the area. Cross-cutting reviewer definitions map to themselves the same way. Exception: pr-summary-reviewer only runs in external PR mode, so a local-range or external-clone-mode change to .claude/agents/pr-summary-reviewer.md won't be self-reviewed — that file's review happens when the PR is run through /review-ef-core-provider <PR#>.
If new area reviewers are added under .claude/agents/, update this table.
Cross-cutting reviewers (always run, unless the diff is doc-only)
These three reviewers run on every invocation regardless of which files changed. They look across the whole diff for one specific concern. They are additional to — not part of — the path-mapping table above.
| Reviewer | Concern |
|---|
api-stability-reviewer | Public-API / breaking changes (signatures, defaults, visibility, annotation keys, MongoEventId numbering, behavior changes on unchanged signatures) |
ef-conformance-reviewer | EF Core integration correctness — multi-version (EF8/EF9/EF10) compat, service registration, annotation hygiene, build-vs-runtime model |
security-reviewer | Credential exposure, sensitive-data logging gating, KMS plumbing leaks, TLS surfaces, connection-string redaction |
Skip condition. If --all was not passed and every file in the diff (git -C "<diff-repo>" diff --name-only <base>...<head>) matches a doc-only pattern — *.md, *.txt, docs/**, LICENSE*, .github/** excluding workflow files (.github/workflows/** still counts as code) — none of these three carry any signal: skip dispatching all three and note it in the aggregated report (## Cross-cutting findings → Skipped — diff is documentation-only.) instead of spending three agent dispatches on files none of them can say anything about. Any single non-doc file in the diff cancels the skip and all three run as normal.
PR-summary reviewer (external PR mode only)
In external PR mode, also dispatch the pr-summary-reviewer agent. It produces a holistic description of the PR (what it does, why) plus an opinion on whether it's a good change. It runs in parallel with everything else, and its output goes at the top of the consolidated report (before ## Summary). Skip it in local range mode and external clone mode — there is no PR body to read. It is not subject to the doc-only skip condition above (a doc-only PR still deserves a summary/verdict).
Step 3 — Dispatch reviewers in parallel
Critical: emit a single assistant message containing one Agent tool-use block per dispatched reviewer — the matched area + feature reviewers from step 2, the cross-cutting reviewers (unless skipped), and (in external PR mode only) pr-summary-reviewer. Multiple Agent calls in the same message run concurrently; sequential calls do not. Use subagent_type: <reviewer-name> for each. If --model <name> was parsed in step 1, set model: <name> on every block; otherwise omit the field and let each reviewer use its own frontmatter default.
In every template below, substitute:
<base>, <head> — the diff range refs.<diff-repo> — the absolute path captured in step 1 (the current repo for local-range / external-PR mode; the other clone for external-clone mode).- File lists — always passed as absolute paths of the form
<diff-repo>/<repo-relative-path> so reviewer Read calls land on the right tree regardless of mode. Don't pass bare repo-relative paths.
Area / feature reviewer prompt template
For each area or feature reviewer, use this template (substitute <base>, <head>, <diff-repo>, and the per-reviewer file list as absolute paths):
You are running as part of a multi-area branch review. The diff range is <base>...<head> in the repo at <diff-repo>.
Files in scope for this iteration that fall in your area (absolute paths):
- <abs-file1>
- <abs-file2>
…
Read those files at their current state. Run git commands with `git -C "<diff-repo>" …` (e.g. `git -C "<diff-repo>" diff <base>...<head> -- <repo-relative-path>`) — the parent agent's working directory may not be <diff-repo>. Pull in adjacent context only as needed to judge the change.
Follow the report shape, tags, finding cap, and verification requirement in `.claude/agents/CONVENTIONS.md` (also linked from your own agent definition). In short: verify every functional finding by running code before you report it — scaffold repros with `Bash` (you have no `Edit`/`Write`), clean up any repro file you create afterward, and include the repro and observed output in your report (uncapped, doesn't count against the word limit).
Cross-cutter prompt template
For each cross-cutting reviewer, use this template (substitute <base>, <head>, <diff-repo>, and the full changed-file list as absolute paths):
You are running as a cross-cutting reviewer in a multi-area branch review. The diff range is <base>...<head> in the repo at <diff-repo>.
Your concern is not scoped to a directory — it is a single hygiene lens applied across the diff. Files in scope (absolute paths):
- <abs-file1>
- <abs-file2>
…
Use `git -C "<diff-repo>" diff <base>...<head>` to see the full picture and `git -C "<diff-repo>" diff <base>...<head> -- <repo-relative-path>` to focus. Read files at their current state where context matters. Skip files that are clearly irrelevant to your concern.
Follow the report shape, tags, finding cap, and verification requirement in `.claude/agents/CONVENTIONS.md` (also linked from your own agent definition). Findings must be specific to your concern — do not duplicate what an area reviewer would catch.
PR-summary prompt template (external PR mode only)
For pr-summary-reviewer, use this template (substitute the PR fields, <base>, <head>, <diff-repo>, and the full changed-file list as absolute paths):
You are running as the PR summary reviewer in a multi-area branch review of an external pull request.
PR: #<number> — <title>
URL: <url>
Diff range: <base>...<head> in the repo at <diff-repo>
All files changed in this range (absolute paths):
- <abs-file1>
- <abs-file2>
…
Pull the PR body yourself with `gh pr view <number> --json body,labels,additions,deletions,changedFiles,author` to get the author's stated rationale. Use `git -C "<diff-repo>" diff <base>...<head>` for the diff and read files at their current state where context matters.
Produce a report in exactly the shape specified in your agent definition (Description / Assessment / Verdict; 500-word cap). Do not duplicate the per-area or cross-cutting reviewers' work.
Step 4 — Aggregate
After all reviewers return, produce one consolidated report in this shape and show only this to the user (do not paste raw sub-agent transcripts).
For the report heading:
- External PR mode:
# PR review: #<number> — <title> followed by the PR URL and diff range: <base>...<head> on separate lines.
- External clone mode:
# Clone review: <head-label> in <clone> followed by diff range: <base>...<head> on a separate line. (<head-label> is the branch name or short SHA captured in step 1; <clone> is the absolute path.)
- Local range mode:
# Branch review: <base>...<head>
# <heading from above>
## PR summary
(External PR mode only — paste the `pr-summary-reviewer`'s Description, Assessment, and Verdict verbatim. Omit this section in local range mode and external clone mode.)
## Summary
N reviewers ran (M area+feature + up to 3 cross-cutting [+ 1 PR summary in external PR mode]). X approved, Y flagged, Z escalated. (PR-summary verdict is not counted in those totals — it's a separate lens.)
## Escalations
For each `escalate` verdict from any reviewer — reviewer name, then its findings verbatim. Omit section if none.
## Cross-cutting findings
Group by reviewer (`api-stability-reviewer`, `ef-conformance-reviewer`, `security-reviewer`). For each: verdict + findings as bullets, or `<reviewer> — clean` if it approved. If the doc-only skip condition applied, write `Skipped — diff is documentation-only.` instead of the three reviewer entries.
## Area + feature findings
For each area or feature reviewer that ran: verdict + findings as bullets if `flag`, or `<reviewer> — clean` if `approve`. (Escalations are already covered above.)
## Unmapped changes
Files from the diff that didn't match any area or feature reviewer. (Cross-cutters cover the diff regardless, so this is purely a coverage signal for the area mapping.) Omit section if none.
Save to file — after composing the report, determine the output filename. The save location is always the parent agent's current working directory (the current clone), never <diff-repo> when those differ.
- External PR mode: stem is
review<number> (e.g. review297). Always saved.
- External clone mode: stem is
review-<sanitized-head-label>, where the head label is the branch name or short SHA captured in step 1 with every character that is not [A-Za-z0-9._-] replaced by - (e.g. branch EF-308a → review-EF-308a; branch feature/foo → review-feature-foo). Always saved.
- Local range mode: do not save — the report only appears inline.
When saving:
- List files in the current directory matching
<stem>[a-z].md.
- Find the lowest letter (
a–z) not already taken; use a if none exist yet.
- Write the full report to
<stem><letter>.md in the current directory using the Write tool.
- Tell the user the filename at the end of your response (one line, e.g.
Saved to review297a.md).
Notes
- This skill hard-depends on the superpowers plugin (Step 0). If
superpowers:requesting-code-review is not available, the skill errors out before doing any work.
- Reviewers must not fix the source tree: each one is configured with
tools: Read, Grep, Glob, Bash and has no Edit / Write / Patch tool, so they can't apply a fix — treat any suggested fix as something the user or a follow-up change applies, not the reviewer. They can and must use Bash to verify functional findings, which includes running dotnet test, scaffolding a throwaway repro test or project via a here-doc, and git diff. Any repro file a reviewer creates is temporary and must be deleted before the reviewer returns, leaving the working tree exactly as found.
- A diff against a feature branch's own base is the typical use; pass an explicit
<base-ref> for non-main cases (e.g. /review-ef-core-provider release/10.0). Pass a second positional arg to cap the end of the range (e.g. /review-ef-core-provider HEAD~5 HEAD~1).
- In external PR mode, the remote is inferred from the PR's repo URL, so PRs on forks (
upstream, origin, or any named remote) are handled automatically without any extra flags.
- In external clone mode, the parent agent stays in the current clone so that
AGENTS.md files, reviewer briefs, and any other repo guidance load from here, while the source code being reviewed and all git history come from <clone>. This is the whole point of the mode: review code on a branch that doesn't yet carry the latest agent/architecture updates, using the up-to-date briefs from the current clone. The pr-summary-reviewer does not run in this mode (no PR body to fetch); if you also want a holistic PR summary, run /review-ef-core-provider <PR#> separately.
- Model defaults are per-reviewer, not inherited from the parent session (see each agent file's frontmatter):
value-generation-reviewer and diagnostics-reviewer (narrow, mechanical checks) default to haiku; the rest of the area, feature, and cross-cutting reviewers default to sonnet; pr-summary-reviewer (open-ended holistic judgment, no fixed rubric) defaults to inherit. Pass --model <name> to override all of them uniformly for a given run.
