PR Reviewer

The reviewer that’s read your whole codebase

Mergic PR Reviewer writes inline review comments at the quality of a staff engineer who has full context on every file, service, and incident in your org.

GitHub · GitLab · Bitbucket 9-min median first review 91% comment actionability
Built for production engineers

Review comments that actually move the needle

No noise. No nitpicks. Just the findings that would matter to your sharpest staff engineer.

Security findings

Auth bypasses, SSRF, IDOR, secret leaks, prompt-injection surfaces — across your real call-graph, not just the diff.

Data correctness

Idempotency gaps, missing transactions, race conditions, schema drift, double-write hazards.

Performance

N+1 queries, missing indexes, blocking I/O on hot paths, regressions vs. your last-week p99 latency.

API contracts

Breaking changes across services. Knows every consumer of every endpoint in your org.

Dependencies

Risky upgrades, license issues, unmaintained packages, transitive vulnerabilities.

Blast radius

If this PR breaks, which services, which customers, which on-call rotation pages?

Inline. Where you already work.

Mergic posts comments directly in GitHub, GitLab, or Bitbucket — threaded, resolvable, mentionable. No new dashboard to learn.

  • Native PR comments on GitHub, GitLab, Bitbucket
  • Slack and Linear integrations for triage
  • Codeowners-aware: only reviews what’s in scope
M
mergic-bot reviewed · 8 min ago

Race condition on line 87. Two webhook deliveries within the Stripe retry window will both call handleRefund() before the row lock is acquired.

Suggested fix: wrap with withIdempotency() as in billing/charges.ts:142. Will reduce double-refund risk to < 0.01%.

data correctness · high auto-fix available

It abstains when it’s unsure

Most AI tools fail by being confidently wrong. Mergic ships a verifier model alongside the reviewer — and if confidence is below your threshold, it stays silent. No noise. No fatigue.

  • Per-finding confidence score (0–100)
  • Configurable thresholds per repo / per severity
  • Verifier model independent of the executor
finding_id: f8c2-9a3
category: performance
confidence: 94 / 100   posted
confidence: 71 / 100   posted with caveat
confidence: 58 / 100   abstained
# your threshold: 70
Customer stories

Loved by teams who ship every day

“Mergic flagged a tenant-isolation bug that would have leaked data across two customers. Static analyzers had nothing.”

JK
Jules KapoorVP Eng · Helix Pay

“Our PR-to-merge time dropped 60%. Senior engineers got their afternoons back.”

RS
Riya SinghEngineering Manager · Spectra

“It writes comments the way our best staff engineer does. Politely. Specifically. With the code reference.”

TM
Tom McAllisterTech Lead · Forge Labs

PR Reviewer pricing

Included in every Mergic plan.

Starter
$99/mo
1,000 reviews / month
  • All review categories
  • Confidence scoring
  • Slack integration
  • Community support
Start trial
Enterprise
Custom
Unlimited & fine-tuned
  • Custom fine-tune
  • VPC / on-prem
  • SLA, FDE, CSM
  • Compliance packs
Contact sales

FAQ

No. The reviewer abstains below confidence threshold and aggregates related findings. Median Mergic-only comments per PR: 1.4. Less noise than the average human reviewer.
Of course — Mergic comments resolve like any other. Disagreements become labeled data that improves your team’s fine-tune.
Configurable. Default: draft PRs get lightweight review; reviews-ready PRs get the full agent fleet.
TypeScript / JavaScript, Python, Go, Rust, Java, Kotlin, Ruby, C#, plus Terraform, Pulumi, Kubernetes, and Helm for infra-as-code.

See Mergic review your next PR.

Install in 10 minutes. First review on your repo within the hour.