Conciseness

The body is directive and lean with essentially no explanation of concepts Claude already knows; every section adds tool-specific rules the model could not infer. Minor redundancy — the 'one AI source only' rule is restated across 主路由规则, 频率限制, and AI 源选择 — keeps it below the 'every token earns its place' anchor.

Actionability

Concrete commands (`opencli list -f yaml`, `opencli <site> -h`, `opencli <site> <command> -h`), hard numeric limits (max 1 AI call, max 2 non-AI calls), a fixed ledger schema, and a copy-paste report template make the guidance mostly executable. Placeholders instead of full search invocations are explicitly justified ('以 `opencli ... -h` 的实时输出为准'), so no penalty applies, but no concrete end-to-end example exists either, holding it at 4 rather than 5.

Workflow Clarity

The workflow is clearly sequenced: a mandatory two-stage precheck (registry → site help → subcommand help), a single routing rule, an incrementally updated call ledger, and a mandatory post-query report. Validation checkpoints are explicit (verify sites against live registry before use) and error-recovery loops are spelled out for both rate limits (record skip → switch source → answer with stated gaps) and unavailable sources (do not abort → record → fall back).

Progressive Disclosure

The SKILL.md body is an overview only, and the 参考文件 section clearly signals eight one-level-deep, domain-organized references (`references/sources-ai.md` … `sources-other.md`), all of which exist and contain no further nesting. The instruction to load only files relevant to the current query rounds out easy navigation.

Specificity

The description names the tool ('基于 opencli 命令') and one concrete action ('智能搜索路由器' — routing queries to the best search source), matching the 'names domain and 1-2 concrete actions, but not comprehensive' anchor. It does not list several specific capabilities (e.g., per-site budget enforcement, preflight help checks, search summaries), so it is not a 4.

Completeness

It explicitly answers 'what' ('基于 opencli 命令的智能搜索路由器') and 'when' with a concrete, mandatory trigger clause ('当用户想要…务必使用此 skill') listing concrete trigger phrases. Both what and when are explicitly and concretely present.

Trigger Term Quality

It covers four natural verb triggers (搜索、查询、查找、研究) plus nine domain triggers (指定网站、社交媒体、技术资料、新闻、购物、旅游、求职、金融、中文内容), which is good keyword coverage. A few natural variations (e.g., 'look up', 'browse', tool-specific aliases) are missing, so it is not a 5.

Distinctiveness Conflict Risk

The opencli-specific framing ('基于 opencli 命令的智能搜索路由器') carves a clear niche with domain-specific triggers, but the generic verbs '搜索、查询、查找或研究信息' carry minor overlap risk with any general web-search or research skill, keeping it below 5.