Conciseness

The tables and key-insight bullets are dense and mostly earn their tokens, but there is noticeable padding Claude doesn't need: the "About the Author" biography paragraph, the motivational "Core Principle" section, six "Why it works" paragraphs restating well-known concepts (feature flags, canary releases, observability pillars), and an affiliate-tagged book link — this sits between anchors 2 and 3, and the useful core keeps it at 3.

Actionability

The six "Code applications" tables give concrete, parameterized guidance ("Open after 5 failures in 60s; half-open after 30s", "Connect: 1s, read: 5s", "Base 100ms, max 3 retries, 20% retry budget") and the Quick Diagnostic maps each failure to a specific fix, which is actionable for an instruction-only skill; it stops short of anchor 5 because no literal commands or code samples are included and a few table rows stay at the principle level.

Workflow Clarity

The review path (six areas → Common Mistakes → Quick Diagnostic → Scoring) is present but never explicitly sequenced — there is no "first audit, then score, then recommend" instruction tying the sections together, and checkpoints like the diagnostic's "If No → Action" column are implicit rather than framed as validation steps, matching anchor 3 rather than 4.

Progressive Disclosure

The body is a genuine overview: each of the six sections ends with a well-signaled one-level-deep link ("See: [references/stability-patterns.md]...") to a substantive reference file (verified: all six files exist, 279–369 lines each, with no nested references), plus a consolidated Reference Files index — matching the anchor-5 structure of clear overview with easy navigation.

Specificity

The description names concrete, specific capabilities ("circuit breakers, bulkheads, timeouts, and retry logic" plus "capacity planning, health checks, and anti-fragility patterns") with comprehensive domain coverage, but the action verbs are limited ("Build", "Covers") — the listed items are pattern nouns rather than multiple distinct actions, so it falls just below the anchor-5 example of multiple concrete verbs.

Completeness

It explicitly answers both questions: what ("Build production-ready systems with stability patterns: circuit breakers, bulkheads, timeouts, and retry logic") and when ("Use when the user mentions..." plus "Also trigger when..."), with concrete trigger phrases — a textbook match for the anchor-5 example, and it adds boundary guidance to sibling skills.

Trigger Term Quality

Eight explicit quoted triggers ("production outage", "circuit breaker", "timeout strategy", "chaos engineering", "health checks", etc.) plus three scenario triggers ("designing resilient microservices", "zero-downtime deployments", "cascading failure scenarios") give comprehensive, natural-phrase coverage that exceeds the anchor-5 example's breadth; a user needing this skill would naturally say nearly all of these.

Distinctiveness Conflict Risk

The production-readiness/resilience niche is distinct with explicit disambiguation ("For data systems, see ddia-systems. For system architecture, see system-design"), but triggers like "deployment pipeline" and "designing resilient microservices" carry minor overlap risk with a general system-design or CI/CD skill, matching anchor 4 rather than the minimal-conflict anchor 5.