Conciseness

The body is pure lookup tables with zero padding — every row is a path, env var, or doc pointer that Claude cannot know without this file. The single prose line (the architecture summary) is project-specific knowledge, not a concept Claude already knows. This matches anchor 5 (lean, every token earns its place) and is well above anchor 4.

Actionability

Every entry is a concrete, copy-paste-usable path or environment variable name, covering the common lookup cases (backend entry, frontend files, database, logs, config, plugin locations, docs). Per the scoring notes, an instruction-only skill without code is not penalized when the guidance is actionable — here the paths are directly actionable for navigation. Matches anchor 5; anchor 4 would require missing key details, and none are evident.

Workflow Clarity

This is a simple, single-purpose skill (path/config lookup) with an unambiguous single action, and it involves no destructive or batch operations, so the simple-skill exception applies and workflow clarity can score 5. The single action — consult the tables — is unambiguous, and grouping is logically organized (source paths, runtime paths, env vars, docs).

Progressive Disclosure

The skill is under 50 content lines, needs no external reference files (none exist in references/, scripts/, or assets/), and is organized into well-labeled sections. It also points to existing project documentation (docs/PLUGINS_DEV.md, docs/SETTINGS_SYSTEM.md) rather than inlining it — one-level-deep, clearly signaled pointers. This matches anchor 5 under the simple-skill exception.

Specificity

The description lists several specific content areas ("codebase structure, key file paths, and configuration locations") and concrete examples ("backend entry point, frontend files, or database location"), but coverage has minor gaps — plugins, workflows, and docs (covered in the body) are not mentioned. It fits anchor 4 (several specifics, minor gaps) rather than 5 (comprehensive) and is well above anchor 3 (only 1-2 concrete actions).

Completeness

It explicitly answers both: "what" ("Reference for the NetAlertX codebase structure, key file paths, and configuration locations") and "when" ("Use this when exploring the codebase or looking for specific components like...") with concrete trigger phrases. This is a direct match for anchor 5; anchor 4 would require the when-clause to be less explicit.

Trigger Term Quality

Natural phrases a user would say are present ("exploring the codebase", "looking for specific components", "backend entry point", "database location"), but a few common variations are missing (e.g., "navigate the project", "where is the config", "project structure"). This matches anchor 4 (good coverage, a few natural terms missing) rather than anchor 5's synonym-and-extension completeness.

Distinctiveness Conflict Risk

The description is scoped to the named project "NetAlertX" with project-specific triggers (backend entry point, database location), giving it a clear niche and minimal conflict risk with generic skills. It matches anchor 5; third-person voice is used consistently, so no voice penalty applies.