UpgradeLens

Use when a coding agent needs a cited go/no-go risk decision without steps before changing an existing npm or PyPI dependency between two exact versions. Returns action_allowed, vulnerability delta, compatibility, EOL, and breaking-change evidence. Use plan_dependency_upgrade instead for ordered migration work. Do not use to choose a target, install a new package, search general docs, or analyze another ecosystem. Read-only and safe to retry.

Use only when an existing npm or PyPI dependency has an exact current version but no chosen target. Ranks candidates; candidates are not declared safe and require check_dependency_upgrade or plan_dependency_upgrade. Do not use when a target is stated, for a new install, or as authorization to edit files. Read-only and safe to retry.

Use when a coding agent needs a migration checklist, refactor actions, ordered review actions, changelog links, or test steps for exact current and target npm/PyPI versions. Use check_dependency_upgrade instead for a go/no-go without steps. Do not use to choose a target, install a package, or provide a general tutorial. Read-only and safe to retry.

Use when an agent reviews a Dependabot, Renovate, npm, or PyPI version change before merge. One cited result combines security delta, runtime compatibility, breaking changes, go/no-go risk, and ordered migration actions for exact current and target versions. Do not use for new installs, unknown versions, general documentation, or other ecosystems. Read-only and safe to retry.