Conciseness

Lean and token-efficient with no padding or explanation of concepts Claude already knows; every line is actionable guidance, matching the score-3 'every token earns its place' anchor.

Actionability

Gives concrete specifics such as 'host.docker.internal', the '/healthz' endpoint, and 'PostgreSQL state storage'; instruction-only yet actionable, so the absence of code blocks is not penalized per the code-vs-instruction note.

Workflow Clarity

The numbered Execution Checklist has an explicit validation checkpoint ('Verify `/healthz` before traffic or CI assertions') and a feedback element ('Return deployment checks with failure-mode diagnostics'), matching the score-3 clear-sequence anchor.

Progressive Disclosure

Under 50 lines with no external references needed, organized into clear sections (When To Use, Apply These Rules, Execution Checklist), satisfying the simple-skill score-3 condition for well-organized content.

Specificity

Lists multiple concrete capability areas — 'Docker networking, state storage choices, readiness checks, and environment-based secret handling' — matching the score-3 anchor that enumerates several specific actions rather than vague language.

Completeness

Explicitly states what it does ('Apply Plano deployment and production security practices') and when to use it via an explicit 'Use for...' trigger clause, matching the score-3 anchor that answers both what and when.

Trigger Term Quality

Phrases like 'Docker networking', 'readiness checks', and 'environment-based secret handling' are natural terms a deployment-focused user would say, giving good coverage matching the score-3 anchor.

Distinctiveness Conflict Risk

Scoped to Plano deployment and production security with distinct, domain-specific triggers, making it unlikely to fire for unrelated skills, matching the score-3 anchor.