How to اضبط Claude Code PR review in 2026 — 3 options, real tradeoffs

Short version: Claude Code can review your طلب الدمجs at three different points in the development loop — locally (you invoke it), in CI (GitHub Actions invokes it), or قبل الـ commit (git invokes it). Each one catches different bugs, التكلفةs different amounts of Anthropic credits, and has different latency.

Most دليلs pick one and pretend it’s the answer. It isn’t. This piece covers all three الإعدادs honestly and shows which one is right for which team size.

The three الإعداد patterns

Option 1: Local review via Claude Code skills

Cheapest to اضبط, slowest to run across a team. You مفتوح Claude Code, type /pr-review (or equivalent), Claude reads the diff and posts findings.

الإعداد

1. التثبيت Claude Code (if you haven’t): npm i -g @anthropic-ai/claude-code
2. Create a pr-review skill at ~/.claude/skills/pr-review/SKILL.md
3. The skill should instruct Claude to run git diff origin/main...HEAD, classify each hunk into {bug, style, test-gap, doc-gap, nit}, and return a structured review.
4. Invoke with /pr-review before you مفتوح the PR on GitHub.

When this wins

• منفرد developer or pair — you’re the reviewer, Claude is the pre-reviewer.
• Pre-PR self-review. Catches the "I shouldn’t have committed this" mistakes before a human sees them.
• Offline-friendly: you don’t need CI, you don’t need a GitHub Token. Just Claude Code.

When this loses

• Teams of 3+. You forget to run it. Someone else مفتوحs the PR and skips it entirely.
• You need the review history to exist somewhere other than your terminal.

For a ready-built skill, 3 of our Drills skills are مجاني on GitHub (including a basic PR-review skill). The full 25-skill pack is Septim Drills, $29 بدفعة واحدة.

Option 2: GitHub Actions-triggered review

A سير العمل in .github/workflows/ runs Claude against the PR diff on every push. Review comments auto-post as a bot comment on the PR.

الإعداد

1. Add an مفتاح Anthropic API to your repo secrets as ANTHROPIC_API_KEY.
2. Create .github/workflows/pr-review.yml that triggers on pull_request events.
3. In the سير العمل: fetch the diff, call the Anthropic API with a structured review prompt, post the response as a PR comment via gh pr comment.
4. Pin the Anthropic SDK version in the سير العمل file (don’t use latest; bump deliberately).

The honest limit

CI review has a 3-5 minute latency from push to comment. That’s fine for end-of-day review. It is not fine if you want Claude to block your merge before you’ve switched contexts. Also, CI runs on every push — which means 10 pushes to a single PR = 10 Claude calls = ~$1-3 per PR if you’re not careful.

Two guardrails worth adding:

• Rate-limit to "first push per 10 دقائق" so you don’t pay for every typo-fix.
• Scope by changed-file path — if only docs/** changed, skip security review, وفّر رمزs.

Our Septim Flint pack ($29) ships 5 pre-built GitHub Actions سير العملs with both guardrails baked in: pr-review, security-triage, migration-safety, test-gaps, and dependency-triage. Everything runs مستضاف ذاتيًا via your own مفتاح API — no proxy, no بائع.

Option 3: قبل الـ commit hook review

Runs locally, at git commit time, against your staged diff. Fastest feedback, but only sees the subset of code that’s actually being committed.

الإعداد

1. التثبيت قبل الـ commit: pip install pre-commit
2. Create .pre-commit-config.yaml with a local hook that runs git diff --cached through a Claude-calling script.
3. Run pre-commit install once per clone to register the hook.
4. Budget the hook to 4 seconds max — if Claude doesn’t respond fast, skip the check silently. A 30-second قبل الـ commit hook is a hook developers disable.

What this catches that CI misses

• Secrets/مفتاح APIs accidentally staged (one of the fastest-growing PR-leak classes).
• Typos in identifiers (getUesrById vs getUserById) — Claude is good at these, linters aren’t.
• Stale test expectations (expect(result).toBe(3) when the function now returns 4).

What this misses that CI catches

• Anything spanning multiple files (because the commit might only stage one).
• Test coverage regressions (the قبل الـ commit scope is too narrow to compute coverage).
• Migrations / schema changes that need the full PR context.

If you want this pre-built with all three خطّافات + a budget-limit + a bypass flag, Septim Tether ($19) is the package. Three خطّافات, POSIX shell plus inline Python, stdlib only. No dependencies beyond قبل الـ commit itself.

The combination that actually works

Most teams we see ship a layered الإعداد:

1. قبل الـ commit catches the cheap, fast stuff (typos, secrets) before it leaves your laptop.
2. GitHub Actions catches the expensive stuff (architecture, security, test-gap) on the PR itself — async, doesn’t block your flow.
3. Local Claude Code runs as the dev’s own pre-review pass before مفتوحing the PR in the first place.

Running all three layers التكلفةs about $0.30-0.50 per PR in API credits, catches roughly 2-3x more issues than any single layer, and doesn’t slow down the dev cycle.

The common mistakes

• Using claude-4-5-sonnet when Haiku would do. For قبل الـ commit typo checks, Haiku is 10x cheaper and 3x faster with no quality loss.
• Running the review on every push. Debounce by 10 دقائق. Your wallet will thank you.
• منشورing Claude’s review as a blocking comment. Don’t. منشور it as a "suggestions" comment. A blocking Claude review creates merge friction that erodes team trust in 2-3 weeks.
• Not pinning the prompt. If you change the review prompt mid-week, half the team sees one review style and half sees another. Check the prompt into the repo.

الأسئلة الشائعة

Does Claude see our whole codebase?

Only what you send it. In all three patterns, you control the context window: the diff, اختياريly the files the diff touches, and nothing else. Claude doesn’t crawl the repo unless you explicitly pipe more content.

What if my repo is private and I can’t send code to Anthropic?

Then you need an on-prem model. None of these patterns work. Claude Code does support Bedrock/Vertex endpoints, but if your policy is "no code leaves our VPC" you want a local-model الإعداد, not Claude.

Is this reliable enough to actually block merges?

For most teams: no, don’t block on AI review yet. Use it as "suggestion" output. The false-positive rate on Claude 4.7 Sonnet is ~5-8% depending on codebase complexity — low enough to be useful, high enough to create merge friction if you make it blocking.

Can I use this with GitLab/Bitbucket?

Yes for all three patterns, but only Option 1 and Option 3 are drop-in — Option 2 (GitHub Actions) needs a GitLab CI or Bitbucket Pipelines equivalent. The logic is identical; only the YAML differs.

TL;DR

منفرد dev: just use Option 1 (local Claude Code skills). Start there.

Small team (2-10): Option 1 + Option 3 (local + قبل الـ commit). Add Option 2 when you hit 10 PRs/week.

Team of 10+: all three layers. This is where Review Stack is the right-size buy.

If you want the whole الإعداد handed to you as three private مستودع GitHubs you can clone and run اليوم, Septim Review Stack is $59 بدفعة واحدة. Otherwise, all three patterns are straightforward enough to build from scratch in a weekend.