Acquiring a company means inheriting its codebase. VibeRails produces a structured technical due diligence report across 17 categories – before the deal closes.
When you acquire a company, you inherit its technical decisions. Every shortcut taken under deadline pressure, every security vulnerability patched with a workaround, every dependency that should have been upgraded two years ago – it all becomes your responsibility the moment the deal closes.
Hidden technical debt is hidden cost. A codebase that looks functional in a demo can require months of stabilisation work before your engineering team can build on it. Security vulnerabilities discovered after acquisition become your liability. Architectural decisions that made sense for a ten-person startup become bottlenecks when you try to integrate the product into your existing infrastructure.
The financial due diligence process has mature tooling. The legal review has mature tooling. The technical due diligence process, in most acquisitions, is a senior engineer spending a few days reading code and writing a summary. That gap between financial rigour and technical rigour is where expensive surprises hide.
Manual code reviews during due diligence are constrained by time and attention. A reviewer might spend three to five days on a codebase with hundreds of thousands of lines. They sample files, focus on areas they consider high-risk, and produce a qualitative summary. The result depends heavily on which files the reviewer happened to open.
This sampling approach misses cross-file patterns. Inconsistent error handling that spans dozens of modules. Security vulnerabilities that only become visible when you trace data flow across multiple services. Dead code that inflates complexity metrics and confuses future maintainers. Circular dependencies between packages that make the codebase resistant to modular changes.
The timeline pressure compounds the problem. Due diligence windows are typically weeks, not months. The engineering review competes for calendar space with legal, financial, and operational reviews. A manual audit that would take two weeks gets compressed into three days, and the resulting report reflects that compression.
VibeRails performs a full-codebase scan using frontier AI models. Every file in the target codebase is analysed – not a sample, not just the files the reviewer thought to check, but the entire repository including configuration, tests, build scripts, and infrastructure code.
The scan produces structured findings across 17 detection categories:
Each finding includes file path, line range, severity level, category, and a description with suggested remediation. The output is not a vague summary – it is a structured inventory that engineering, legal, and leadership teams can act on.
Timeline: a full-codebase scan runs in hours, not weeks. You can have structured due diligence findings before the next negotiation meeting.
Due diligence findings need to reach people beyond the engineering team. VibeRails produces HTML reports that non-technical stakeholders can read – severity breakdowns, category summaries, and risk distribution across the codebase. These reports are suitable for board presentations, investor updates, and executive briefings.
For the engineering team, CSV exports provide the raw finding data for sorting, filtering, and integration into project management tools. Import findings into Jira, Linear, or a spreadsheet and start planning remediation before the acquisition formally closes.
Both export formats serve as documentation artifacts. They create a timestamped record of code quality at the point of acquisition – useful for tracking improvements over time and for establishing accountability around known issues.
Sending an acquisition target's source code to a third-party review platform creates IP and confidentiality risk. NDAs govern who can see the code, and uploading it to a vendor's cloud infrastructure expands the attack surface during a sensitive transaction.
VibeRails runs as a desktop app with a BYOK model. It orchestrates Claude Code or Codex CLI installations you already have. VibeRails does not upload your repository to VibeRails servers or proxy your requests; review requests go directly from your machine to your AI provider under your own account. No code is routed through a VibeRails cloud service.
For acquisition scenarios, this means due diligence can happen within the security boundaries your legal team has already approved. Per-developer plans start at $19/month, or $299 for a lifetime licence, with a free tier of 5 issues per session to evaluate the workflow before committing.
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