Marco · AI Code Review Agent

Humans can't review code as fast as AI writes it.

Marco reviews every PR the moment it opens, scanning your full codebase, not just the diff. Prioritized, actionable feedback in GitHub or GitLab before a human opens the tab.

Full codebase context. Prioritized feedback. One-click fixes.

Marco reads your whole repo, not just the diff

Most review tools see only what changed. Marco indexes your entire repository, file by file, dependency by dependency. It catches duplicate functions, unused libraries, and pattern violations diff-only tools miss every time.

Prioritize reviews by logic depth, not line count

Every PR gets a complexity score from 1 to 10 based on logic depth, nesting, and file interdependencies. A 400-line config update scores a 1.5. A 50-line auth flow change scores an 8.2. Senior attention goes where it matters.

Every issue comes with a fix, applied in one click

Marco doesn't just flag problems. Each suggestion includes a criticality level, an explanation, and the fixed code ready to apply directly in GitHub. Batch suggestions commit multiple fixes at once without a review cycle.

Catch secrets, vulnerabilities, and compliance issues before merge

Security Check runs first. It scans for hardcoded secrets, PII exposure, weak cryptography, and compliance anti-patterns relevant to SOC 2, HIPAA, and GDPR. Flagged issues are sanitized before the AI sees them. What Marco catches doesn't ship.

Four tabs. Every angle on engineering effort.

PR Summary

The moment a PR opens, Marco posts a summary of what changed, why it matters, and which files to focus on.

‍

Incremental reviews

New commits to an open PR get reviewed on their own. Previous suggestions stay in place. Fresh feedback on the new changes.

‍

Custom coding standards

Define org-level rules once: naming conventions, JSDoc, security policies. Marco enforces them on every PR. Override at the repo level.

‍

Codebase indexing

Index your repo once. Marco builds a model of dependencies, patterns, and existing functions. Better context, fewer false positives.

‍

Hivel × Freshworks Case Study Card
Freshworks NASDAQ: FRSH

How Freshworks measured AI impact across 1,500 engineers — in real time

The Challenge

No standard way to measure AI adoption across 1,500 engineers
Couldn't tell which AI tools were helping vs just running
Surveys were the only answer — slow, expensive, inaccurate
1,500+ Engineers · AI ROI Measurement · NASDAQ: FRSH
40% Increase in engineering throughput
50% Reduction in rework and maintenance
25% More features released in key business units
10% Improvement in time-to-market

Frequently asked questions

Does Marco replace human code reviewers?

No. Marco handles the first pass: syntax, style, patterns, security, and routine checks. Human reviewers focus on architecture, business logic, and edge cases where judgment matters. The goal is to make human reviews better, not to skip them.

How does Marco understand our codebase?

When you index a repository, Marco analyzes every file for dependencies, coding standards, and architectural patterns. It builds bidirectional dependency maps so it understands what your code depends on and what depends on it. Diff-only tools miss this context.

What happens when we push new commits to an open PR?

Marco runs an incremental review on only the new changes, not the full PR again. Previous suggestions remain visible. Developers get targeted feedback on what they just pushed.

Trusted by 1000+ Engineering Teams

Vaibhav Bansal
V.P. Engineering
"Hivel has been phenomenal in helping us present our progress to leadership. Its insights into leading indicators have empowered our team leads to enhance review efficiency and ship features faster. Now, we are able to show the impact of our process changes, clearly identify areas of opportunity, and bring in a data-driven culture without spending time pulling manual reports."
Murali Swaminathan
Chief Technology Officer
"We were looking for a unique solution to understand engineering productivity and efficiency, with a single tool that could give leaders complete visibility. We evaluated other comparable tools, but none were comprehensive enough. When we came across Hivel, it checked all the boxes for measuring developer productivity across both AI and non-AI workflows."
Derek Mackie
Director of Engineering
"Using Hivel shone a light on the non-standard aspects of our work, emphasizing the need for crucial adjustments. The insights from Hivel helped us recognize areas for improvement, particularly in managing cycle times and streamlining development workflows. This guidance has been instrumental in our efforts to enhance operational efficiency and productivity."
Leonardo Pinheiro Ferrari
Chief Technology Officer
"Thanks to Hivel, we've seen a staggering 157% improvement in our deployment frequency. By identifying and addressing inefficiencies, and adopting best practices, we've significantly accelerated our progress. Hivel has been instrumental in our journey to operational excellence."
Chris Callander
Senior Engineering Manager
"Hivel has been instrumental in identifying areas for enhancement and guiding our strategic improvements. It has significantly contributed to our journey toward greater operational efficiency. The Activity and Dev360 features in Hivel have been particularly valuable for providing feedback to engineers during 1-1's, enhancing our communication and development practices."
Shiro Theuri
Chief Technology Officer
"Before Hivel, understanding our engineering team's dynamics was a game of guesswork. Now, with Hivel's clear dashboards and insights, our leaders have the clarity and time-saving tools they need to excel. It's been transformative in streamlining our operations."
Koti Reddy
Chief Technology Officer
"Incorporating Hivel into our daily operations has been a game-changer. It's not just a tool; it's a part of our strategic decision-making process, trusted by our leaders at every level. The impact on our engineering efficiency is undeniable and deeply valued."
Manoj Awasthi
Chief Technology Officer
"It has been great to partner with Hivel to get access to insights that help leaders at all levels gain visibility into bottlenecks and challenges that the teams face, build actionable plan to resolve them and track the progress over time. And thanks for the fantastic support!"
Ameen M
Engineering Manager
"Hivel has made a huge difference to how I manage my teams. Before every one-on-one or appraisal, I rely on it to dive into developer metrics and drive truly meaningful conversations. It helps me spot rework patterns, reward high performers, and benchmark our teams even against our US counterparts. The dashboards are intuitive, insightful, and honestly far more actionable than anything we get from Jira."
Paras Sood
Associate Director
"Hivel's insights have been pivotal in refining our engineering processes, elevating both efficiency and the developer experience. We're now making smarter decisions, faster, thanks to Hivel."
Vaibhav Bansal
V.P. Engineering
"Hivel has been phenomenal in helping us present our progress to leadership. Its insights into leading indicators have empowered our team leads to enhance review efficiency and ship features faster. Now, we are able to show the impact of our process changes, clearly identify areas of opportunity, and bring in a data-driven culture without spending time pulling manual reports."
Murali Swaminathan
Chief Technology Officer
“We were looking for a unique solution to understand engineering productivity and efficiency, with a single tool that could give leaders complete visibility. We evaluated other comparable tools, but none were comprehensive enough. When we came across Hivel, it checked all the boxes for measuring developer productivity across both AI and non-AI workflows.”
Vaibhav Bansal
V.P. Engineering
"Hivel has been phenomenal in helping us present our progress to leadership. Its insights into leading indicators have empowered our team leads to enhance review efficiency and ship features faster. Now, we are able to show the impact of our process changes, clearly identify areas of opportunity, and bring in a data-driven culture without spending time pulling manual reports."
Derek Mackie
Director of Engineering
"Using Hivel shone a light on the non-standard aspects of our work, emphasizing the need for crucial adjustments. The insights from Hivel helped us recognize areas for improvement, particularly in managing cycle times and streamlining development workflows. This guidance has been instrumental in our efforts to enhance operational efficiency and productivity."
Leonardo Pinheiro Ferrari
Chief Technology Officer
"Thanks to Hivel, we've seen a staggering 157% improvement in our deployment frequency. By identifying and addressing inefficiencies, and adopting best practices, we've significantly accelerated our progress. Hivel has been instrumental in our journey to operational excellence."

"The only tool our entire leadership team actually trusts"

- CTO, Enterprise
Book Demo