Names the domain (migrations, legacy modernization, structural refactors) and mentions some patterns (strangler pattern, incremental extraction), but doesn't list concrete actions like 'extract module X', 'create adapter layers', or 'generate migration scripts'. The terms are more conceptual than actionable.

Explicitly answers both 'what' (migrations, legacy modernization, structural refactors) and 'when' with a clear 'Use quando precisar fazer...' clause listing specific trigger scenarios like upgrades, incremental extraction, strangler pattern, transition compatibility, and safe rollout.

Includes some relevant keywords like 'migracoes', 'legacy', 'refactors', 'strangler pattern', 'upgrades grandes', and 'rollout seguro'. However, it misses common natural variations users might say such as 'migrate database', 'upgrade framework', 'deprecate old code', 'backward compatibility', or specific technology terms. The Portuguese language also limits trigger matching for English-speaking users.

Terms like 'refactors estruturais' and 'modernizacao de legacy' carve out a reasonable niche, but 'refactors' could overlap with general code refactoring skills, and 'upgrades grandes' is somewhat vague and could conflict with dependency update or version upgrade skills.

The content is relatively brief but includes some redundancy between sections (e.g., 'Checklist Base' and 'Evidencia de Conclusao' overlap significantly with rollback/phases/risks mentioned in both). The 'Governanca Global' section listing many policy files adds tokens without actionable value inline.

The skill provides no concrete code, commands, examples, or templates. It describes what should happen ('plano incremental', 'estrategia de compatibilidade') but never shows how — no strangler pattern example, no migration plan structure, no executable steps. It reads as an abstract checklist rather than actionable guidance.

There is no sequenced workflow for performing a migration. The checklist items are unordered concerns rather than steps. For a skill dealing with destructive/risky operations like migrations, the absence of explicit validation checkpoints, feedback loops, and a clear step-by-step process is a significant gap.

The skill references external files (policies, templates/migration-plan.md) which is good progressive disclosure in principle, but the references are not well-signaled with descriptions of what each contains. The main content itself is thin enough that it doesn't need splitting, but it also doesn't provide enough substance to serve as a useful overview.