The description names the domain (product analytics/tracking) and lists several actions like event definition, tracking naming, funnels, product metrics, and analytical instrumentation. However, these are somewhat high-level categories rather than deeply specific concrete actions (e.g., it doesn't specify 'create tracking plans', 'generate event schemas', 'define funnel steps').

Clearly answers both 'what' (event definition, tracking naming, funnels, product metrics, analytical instrumentation) and 'when' (measuring delivered value, activation, conversion, retention, user behavior) with an explicit 'Use quando' clause and a dedicated 'Trigger em' list.

Excellent coverage of natural trigger terms including both Portuguese and English variations: 'tracking', 'analytics', 'eventos de produto', 'funil de conversao', 'instrumentar evento', 'metrica de produto', 'tracking plan', 'data analytics', and specific tool names like 'PostHog', 'Amplitude', 'Mixpanel'. These are terms users would naturally use.

The skill occupies a clear niche in product analytics instrumentation with highly specific trigger terms like 'tracking plan', 'naming de evento', 'instrumentar evento', and tool-specific names (PostHog, Amplitude, Mixpanel). This is unlikely to conflict with general data analysis or other skills.

The content is relatively brief but includes several sections that are meta-organizational (Governanca Global, Quando Usar/Nao Usar, Entradas/Saidas Esperadas) without providing substantive, actionable content. The checklist items are useful but the overall structure is more template-filling than efficient instruction.

The skill provides no concrete examples of event naming conventions, no sample tracking plans, no code snippets for instrumentation, and no specific patterns or schemas. Statements like 'evento nomeado com verbo + objeto' are vague without examples (e.g., 'button_clicked', 'form_submitted'). There is nothing executable or copy-paste ready.

There is no sequenced workflow for defining a tracking plan. The checklist and evidence sections list outcomes but don't describe the steps to get there, nor any validation checkpoints. A multi-step process like analytics instrumentation needs clear sequencing (define objectives → map funnel → name events → validate → handoff).

The skill references several external files (GLOBAL.md, policies/*, templates/analytics-plan.md) which suggests an attempt at progressive disclosure, but none of these files are provided in the bundle, making it impossible to verify they exist or contain useful content. The references are one-level deep and clearly signaled, but the SKILL.md itself lacks enough substance to serve as a useful overview.