Conciseness

The body is tight and code-forward with no explanation of concepts Claude already knows. The 'no Aspire clients in app code' rule is restated four times across 'When to Use', Core Principles, the inline note, and the Don't checklist, which is minor repetition that could be trimmed; this keeps it below the lean anchor 5 but above anchor 3's unnecessary explanations.

Actionability

The AppHost/Program.cs example is complete and executable, and the feature-toggle snippet is concrete. The app-side snippet depends on undefined types (BlobStorageOptions, S3BlobStorageService), leaving minor gaps versus the fully copy-paste-ready anchor 5, but it is well clear of the pseudocode-level anchor 3.

Workflow Clarity

The configuration flow 'AppHost resource -> WithEnvironment(...) -> app config keys -> IOptions<T> in app' gives an unambiguous single-direction sequence, reinforced by ValidateDataAnnotations/ValidateOnStart as a validation checkpoint. It is a pattern skill with no destructive or batch operations, so no validation cap applies; it misses anchor 5 only because there is no step for verifying that injected config actually reaches the app.

Progressive Disclosure

Sections are well organized and easy to navigate with no bundle files to split further, and the body appropriately stays at overview depth. Minor gaps: the related-skill paths (e.g. 'skills/aspire/integration-testing/SKILL.md') are external to this bundle and not clearly resolvable, and the ~155-line body could offload detailed patterns to reference files, keeping it below anchor 5.

Specificity

Two concrete, mechanism-level actions are stated: 'emit explicit app config via environment variables' and 'keep app code free of Aspire clients and service discovery'. These are more precise than the anchor-3 example's generic actions, but coverage is limited to two actions (no mention of connection strings or options binding), so it falls short of the comprehensive anchor 5.

Completeness

The 'what' is clearly and concretely answered, but there is no 'Use when...' clause or any equivalent explicit trigger guidance; the judging guideline caps completeness at 3 in that case. Not a 2 because the 'what' is specific rather than vague.

Trigger Term Quality

Natural terms a .NET/Aspire developer would say are present: 'Aspire AppHost', 'environment variables', 'app config', 'service discovery'. A few natural variations are missing ('connection strings', 'IOptions', 'service defaults'), so it does not reach comprehensive anchor 5 but is well above the partial-coverage anchor 3.

Distinctiveness Conflict Risk

'Aspire AppHost', 'Aspire clients', and 'service discovery' define a clear niche with distinct triggers and minimal overlap risk with other skills. No meaningful conflict scenarios come to mind, matching anchor 5.