Conciseness

The bulk is dense, useful code, but several sections restate knowledge Claude already has or are pure filler: the Key Concepts table (Target/Package/Label/Rule/Aspect), the tautological 'Do not use this skill when' section ('The task is unrelated to bazel build optimization'), and the generic Instructions boilerplate ('Clarify goals, constraints, and required inputs'). Pinned time-sensitive version numbers (rules_js 1.34.0, rules_python 0.27.0, node 20.9.0) are not isolated in a deprecation section, which the guidelines say should penalize conciseness, ruling out anchor 4.

Actionability

Mostly executable, concrete guidance: a complete .bazelrc, full BUILD files, a complete custom rule implementation, runnable query commands, and platform/toolchain definitions. Minor gaps keep it from anchor 5: the WORKSPACE template uses placeholder sha256 = "..." (not copy-paste runnable), and several cross-references are dangling (//data:training_data, //:tsconfig.json, //tools/docker:builder, //platforms:linux_x86_64 are used but never defined).

Workflow Clarity

No domain workflow is actually sequenced. The only 'sequence' is the generic Instructions filler ('Clarify goals... Apply relevant best practices and validate outcomes... Provide actionable steps and verification'), which matches anchor 2's 'rough sequence present but many gaps; steps poorly defined; validation absent' — the validation mention carries no concrete checkpoint. The Performance Optimization section lists profiling commands but never orders them into a diagnose -> fix -> re-profile loop, so anchor 3's 'steps listed' for a real process does not apply.

Progressive Disclosure

Roughly 330 lines of templates are inlined in SKILL.md — content that clearly belongs in separate reference files — and the skill's single deferred reference, 'open resources/implementation-playbook.md', points to a file that does not exist anywhere in the bundle (no references/, scripts/, or assets/ directories are present), so the detailed material it defers to is simply missing. This matches anchor 2 ('content that clearly belongs in separate files is inlined'); the section headers prevent a score of 1, but the one reference is broken rather than merely buried, preventing anchor 3.

Specificity

The capability statement is a single concrete action — "Optimize Bazel builds for large-scale monorepos" — while "configuring Bazel, implementing remote execution, or optimizing build performance" are framed as trigger conditions rather than a direct capability enumeration (cf. the anchor-4 example 'Extracts text from PDF files, fills forms, converts pages to images'). It names the domain plus 1-2 concrete actions and is not comprehensive: custom rules, debugging, and migration — core uses the skill body itself lists — are absent, which is more than a 'minor gap', keeping it below anchor 4.

Completeness

It clearly and explicitly answers both questions with concrete trigger phrases: what = "Optimize Bazel builds for large-scale monorepos"; when = "Use when configuring Bazel, implementing remote execution, or optimizing build performance for enterprise codebases". This structurally matches the anchor-5 example ('...Use when working with PDF files or when the user mentions PDFs, forms, or document extraction'); the when-clause is explicit and specific, so anchor 4's 'when could be more explicit' does not apply.

Trigger Term Quality

Good natural keyword coverage: "Bazel", "builds", "monorepos", "remote execution", "build performance", "enterprise codebases", "configuring Bazel" — terms users would plausibly say. A few natural terms are missing ("build times", "slow builds", "remote caching", "BUILD files", "CI"), and there are no synonyms or file extensions, so it does not reach anchor 5's comprehensiveness.

Distinctiveness Conflict Risk

Mostly distinct: Bazel is a specific tool and the niche is clear. Minor overlap risk remains because two when-clauses drop the Bazel qualifier — "implementing remote execution" and "optimizing build performance for enterprise codebases" could also match general remote-execution or build-optimization skills. Not anchor 5, since its example keeps the tool name in every trigger.