gosec vs Skylos

gosec is a free Go source-code security checker that analyzes abstract syntax trees and static single assignment representations. It applies pattern rules, SSA analyzers, and taint analysis to detect issues including injection, path traversal, SSRF, unsafe deserialization, cryptography and TLS problems, blocklisted imports, and Go-specific risks. Findings map to Common Weakness Enumeration entries. Users can select or exclude rules, define path-based exclusions, and change settings such as audit mode. Reports are available as text, JSON, YAML, CSV, JUnit XML, HTML, SonarQube, golint, and SARIF. The project documents GitHub Actions and SARIF uploads to GitHub code scanning; its goanalysis package supports tools such as Bazel nogo. Local installation requires Go 1.25 or newer, with dependencies loaded through Go modules. An optional AI feature suggests fixes through Atlas Cloud, Gemini, Claude, OpenAI, or custom OpenAI-compatible APIs. Automated detection can produce false positives, which annotations can suppress. It is licensed under Apache License 2.0.

Skylos is an open-source static analysis tool that checks source code for security regressions, secrets, dead code, quality issues, and mistakes introduced by AI. It analyzes Python, JavaScript and TypeScript, Go, Java, Kotlin, PHP, Rust, Dart, C#, Shell, and deployment configuration, with analysis depth differing by language. Its CLI runs locally without an account for scans and CI checks. A free VS Code extension offers inline diagnostics and optional AI verification through OpenAI or Anthropic API keys. Cloud options include GitHub pull request workflows, OIDC identity, and optional Slack and Discord notifications. A normal CLI scan remains on the user's machine; Cloud receives data when reports are uploaded, cloud actions are triggered, or the public scan endpoint is used. Uploaded reports may include findings, file paths, snippets, and scan metadata. Skylos says it does not currently claim SOC 2, ISO 27001, or CSA STAR certification. The free plan includes one cloud project, 10 stored scans, and seven-day history. One-time credit packs begin at 9.00 USD. Skylos supports API, extension, Linux, macOS, self-hosted, web, and Windows use.