Conciseness

The body is short but spends its budget on concepts Claude already knows: a Key Concepts table defining 'Target', 'Package', 'Label', 'Rule', and 'Aspect', plus a generic directory tree of WORKSPACE/BUILD files. This matches anchor 3 (mostly efficient but includes unnecessary explanation) — not anchor 4, because those sections are textbook Bazel fundamentals rather than minor trimming.

Actionability

The body contains no executable code, commands, or config flags — the Do's/Don'ts are high-level hints ('Enable remote caching', 'Use fine-grained targets') without the steps or flags to execute them, matching anchor 2 (minimal concrete guidance, missing specifics). It is not anchor 3, since even pseudocode-level specifics are absent from the body; the concrete templates exist only in references/details.md.

Workflow Clarity

The skill claims six task areas (setup, remote caching/execution, optimization, custom rules, debugging, migration) but sequences none of them — there is no ordered procedure anywhere in the body. This matches anchor 2 (rough shape present via section topics, many gaps, no sequence); the simple-skill exception does not apply because the skill covers multiple claimed processes, not one unambiguous action.

Progressive Disclosure

The body is a lean overview with a single, clearly signaled, one-level-deep reference — 'Full template library and detailed worked examples live in references/details.md. Read that file when you need the concrete templates' — and that file exists and contains complete WORKSPACE/config templates. This matches anchor 5 (clear overview, well-signaled one-level-deep references, appropriate split).

Specificity

The description names the domain ('Bazel builds', 'large-scale monorepos') and offers roughly two concrete actions — 'Optimize Bazel builds' and 'implementing remote execution' — but does not enumerate the full capability set (remote caching, custom rules, migration). It matches anchor 3 (domain plus 1-2 concrete actions, not comprehensive) better than anchor 4, which expects several specific listed actions.

Completeness

Both parts are explicit: the 'what' is 'Optimize Bazel builds for large-scale monorepos' and the 'when' is 'Use when configuring Bazel, implementing remote execution, or optimizing build performance for enterprise codebases'. This satisfies anchor 4; it falls short of anchor 5 because the 'what' is a single broad phrase without the multiple concrete trigger-capable actions the top anchor requires.

Trigger Term Quality

Natural phrases users would say are present: 'configuring Bazel', 'implementing remote execution', 'optimizing build performance', 'large-scale monorepos', 'enterprise codebases'. A few common terms are missing — notably 'remote caching' (only 'remote execution' appears), 'BUILD files', and 'build times' — matching anchor 4 (good coverage, a few natural terms missing) rather than anchor 5's comprehensive synonym coverage.

Distinctiveness Conflict Risk

Bazel is a clear niche and every trigger phrase names it explicitly ('configuring Bazel', 'Bazel builds'), so the risk of firing for the wrong skill is minimal — matching anchor 5. It does not sit at anchor 4, since even the most generic phrase ('optimizing build performance') is anchored to 'enterprise codebases' within a Bazel-labeled description.