Conciseness

Body is mostly lean — tables, terse bullets, and code with almost no explanation of concepts Claude already knows. Only minor trimming candidates: the sentence 'Foundry apps run on a cybersecurity platform — security is a core requirement' is mild padding, and the manifest scope list mildly repeats the Minimal Scope Principle example. Fits anchor 4, not 5.

Actionability

Mostly executable guidance: copy-paste CLI commands, manifest YAML, JSON schema, CSP config, and a TypeScript origin-validation listener. The credential-security snippet is comment-style only and the error-message guidance ('Return generic error messages') lacks an example, so it falls just short of anchor 5.

Workflow Clarity

A reference/patterns skill rather than a multi-step process, but the Pre-Deployment Checklist provides explicit validation checkpoints and the suite note sequences prerequisites (development-workflow first). No error-recovery feedback loops exist, though none are required (no destructive or batch operations), matching anchor 4.

Progressive Disclosure

Clear overview body with full implementations deferred to a single one-level-deep reference (references/security-examples.md, verified to exist), signaled inline at each point of use and indexed by a Reading Guide table. Content split is appropriate and navigation is easy — matches anchor 5.

Specificity

Enumerates several specific capability areas — 'OAuth scopes, RBAC, input validation, UI security, and credential management' — but these are domain nouns rather than concrete actions, so it matches anchor 4 ('several specific actions; minor gaps') rather than 5.

Completeness

Explicitly answers both 'what' ('Security patterns for Falcon Foundry apps including OAuth scopes, RBAC, input validation, UI security, and credential management') and 'when' (a TRIGGER clause with concrete quoted phrases and a second trigger context), matching the anchor-5 example structure; 4 would require a weaker 'when' clause.

Trigger Term Quality

Quotes natural user phrases ('configure OAuth scopes', 'secure a Foundry app', 'handle secrets', 'add input validation') plus 'pre-deployment security reviews', giving good coverage; a few common synonyms (e.g., 'harden', 'permissions', 'authentication') are missing, so 4 rather than 5.

Distinctiveness Conflict Risk

Clear niche (Falcon Foundry app security) with distinct triggers scoped to that platform ('secure a Foundry app', 'configure OAuth scopes'), minimizing conflict risk with other skills; nothing generic remains.