Keep every scanner. They hold the line; we judge the system.

Sonar goes wide across 30+ languages at the line level, with thousands of rules, dataflow SAST and a live IDE gate. We go deep on architecture and domain modelling across the languages we cover, and join the whole product into one number — one roll-up instead of a report per repo, signed compliance, and tasks your coding agent can act on. Sonar goes wide; we go deep and then join it all up. We never re-scan the line.

Snyk gives the deepest SCA database, container & registry scanning and automated fix-PRs. Watchdog runs its own SCA across every ecosystem you ship — NuGet, npm, Maven, PyPI, Go modules, Cargo, Composer, RubyGems, Hex and pub — plus IaC, secrets and licences; a CycloneDX SBOM every survey; all folded into one reproducible number and CWE-tagged for an auditor. We don't out-scan a specialist on line-level dataflow, and we don't open PRs.

Coverity gives path-sensitive dataflow defect detection, C/C++ breadth, safety-critical rigor and MISRA / CERT compliance. Watchdog adds architecture and domain lenses and one reproducible system-level score across the languages it covers, including the .NET and Java parts of a mixed estate — where security findings map to the CWE taxonomy an auditor recognises, and are emitted in SARIF so your code-scanning tools show them too. For safety-critical C and C++, Coverity is the right tool and we don't claim otherwise.

CodeRabbit gives AI review of the PR diff in the moment — conversational inline comments, issues caught as written, and a summary of that pull request. Watchdog describes change at a different grain: a product changelog and system overview over a release or sprint window, grounded in the commit messages and the diff — and where the two disagree it trusts the diff, so an entry says what was actually implemented rather than what was intended. Different time, different altitude — zero collision.