Conciseness

The intro paragraph restates the frontmatter description nearly verbatim ("reducing infrastructure expenses while maintaining performance and reliability. Analyze cloud spending, identify savings opportunities..."), "performance and reliability" appears three times, and "Requirements: Take the requirements, target, and scope from the user's request" adds no information — mostly efficient but needs tightening. Not 4 because the redundancy exceeds minor over-explanation; not 2 because the bullets are tight and no background concepts Claude already knows are explained.

Actionability

Instructions like "Collect cost data by service, resource, and time window" and "Identify waste and quick wins with estimated savings" define concrete deliverables (estimated savings, risk assessment, rollback plan, budgets, alerts), but no commands, platform services, or examples appear anywhere. Not 4 because nothing is executable or tool-specific (no AWS Cost Explorer, `aws ce`, or Azure Cost Management); not 2 because each phase specifies a concrete artifact rather than offering only high-level hints.

Workflow Clarity

The four Instructions bullets form a clear sequence (collect, identify, propose with "risk assessment and rollback plan", then implement "budgets, alerts, and ongoing optimization cadence"), and the Safety section supplies explicit checkpoints for destructive operations: "Validate changes in staging before production rollout" and "Ensure backups and rollback paths before resizing or deletion". Not 5 because the checkpoints live in a separate section rather than inline in the sequence and there is no error-recovery loop or post-change savings verification; not 3 because validation for the destructive resizing/deletion steps is explicitly present, so the missing-validation cap does not apply.

Progressive Disclosure

The body signals its single detail reference twice ("If detailed workflows are required, open `resources/implementation-playbook.md`" and the Resources entry), but no such file exists in the bundle — there are no resources/, references/, scripts/, or assets/ directories at all — so the only path to the detailed content is a dead end. Not 3 because a clearly signaled but nonexistent reference is a worse structural failure than imperfect organization; not 1 because the body itself is well-sectioned and the reference is one level deep rather than nested.

Specificity

"analyzing spending, identifying savings opportunities, and implementing cost-effective architectures" names several actions with an explicit domain ("cloud infrastructure costs on AWS, Azure, and GCP"), matching "lists several specific actions; minor gaps". Not 3 because it goes beyond 1-2 actions with platform specificity; not 5 because "implementing cost-effective architectures" is abstract and concrete techniques (rightsizing, reserved/savings plans, storage tiering) are absent.

Completeness

A clear 'what' ("Reduce cloud infrastructure costs... by analyzing spending, identifying savings opportunities, and implementing cost-effective architectures") is paired with an explicit trigger clause: "Use when cloud spending needs to come down or a cost review is due". Not 5 because the trigger list is thinner and less concrete than the anchor's multi-phrase examples (no mention of rightsizing, waste review, or billing); not 3 because the 'when' is explicit, not merely implied.

Trigger Term Quality

Natural phrases a user would say are present — "cloud spending needs to come down", "cost review", "savings", plus the platform names AWS, Azure, and GCP — giving good keyword coverage. Not 5 because common variations and synonyms like "FinOps", "cloud bill", "billing", or "optimize spend" are missing; not 3 because coverage clearly exceeds a few sparse keywords.

Distinctiveness Conflict Risk

The cost-reduction niche is well framed with platform names and explicit "Use when" triggers, making it mostly distinct from unrelated skills. Not 5 because it could still overlap with closely related skills like general cloud architecture, infrastructure provisioning, or FinOps tooling; not 3 because the domain and triggers are considerably more specific than broadly-generic descriptions.