Conciseness

The body is lean with no explanations of concepts Claude already knows, but roughly half the setup code block ("@Component({ selector: 'users-table', template: 'Users table registered' })", "const columns", "const data") is Angular/injectTable scaffolding covered by the prerequisite @tanstack/table-core#core skill rather than devtools-specific content. Efficient overall with minor trimmable boilerplate — anchor 4, not 5.

Actionability

The setup example is copy-paste executable and Common Mistakes give concrete Wrong/Correct pairs ("Wrong: register an otherwise valid table without options.key"), but the required Devtools host step is deferred ("as documented in `docs/devtools.md`") with no code, and the reactive "table: undefined"/"enabled" options are described without an example. Mostly executable with minor gaps — anchor 4, not 5.

Workflow Clarity

This is a simple single-purpose registration skill with no destructive or batch operations, so no validation checkpoints are required; the CRITICAL mistake explicitly anchors where the call must happen ("component/service field initializer or constructor injection context") and the host is placed "once at application configuration level". Not 5 because the host-provisioning step is directional only, with no concrete instruction; not 3 because the registration action itself is unambiguous.

Progressive Disclosure

Sections (Setup, Hooks and Components, Common Mistakes, API Discovery) are well organized and all content is appropriately inline for a ~70-line body with no bundle files. Minor gaps: "Hooks and Components" is a single orphan sentence, and the `docs/devtools.md` reference points to an upstream source path rather than a navigable bundle file — anchor 4, not 5.

Specificity

"Register Angular Table v9 instances with injectTanStackTableDevtools inside injection context" names the exact API and action, and the enumeration "reactive table registration, required options.key, enabled or undefined tables, cleanup, Angular isDevMode gating, or explicit production exports" comprehensively covers every concrete behavior documented in the body. Not 4, since anchor 4 requires minor gaps in coverage and none are evident.

Completeness

A clear 'what' ("Register Angular Table v9 instances with injectTanStackTableDevtools inside injection context") is paired with an explicit 'when' ("Load for reactive table registration, required options.key, ... or explicit production exports") with concrete trigger phrases. This matches anchor 5; not 4 because the when-clause is explicit and enumerated rather than merely present or vague.

Trigger Term Quality

Terms a developer with this package would naturally use are present ("injectTanStackTableDevtools", "Angular Table", "table registration", "cleanup", "production exports"), giving good keyword coverage. Not 5 because natural synonyms and variations such as "TanStack", "devtools panel", or "debug" are missing; not 3 because coverage clearly exceeds "some relevant keywords".

Distinctiveness Conflict Risk

The description names a single specific function ("injectTanStackTableDevtools") and framework ("Angular Table v9"), creating a clear niche with triggers unlikely to fire for any other skill. Minimal conflict risk, matching anchor 5.