Conciseness

The body is dense with operational rules Claude cannot infer — deferred-tool activation via ToolSearch, semantic color tokens like bg-ol-blue/10, a case-sensitive component whitelist, no-IIFE JSX constraints — and it never explains known concepts (what ECharts or JSX is). It misses a 5 because the 静默渲染通道 section carries narrative padding (the letter-writing analogy plus a six-line quoted 反例 transcript) that could be trimmed to the rule plus one short example.

Actionability

Guidance is mostly copy-paste ready: complete ECharts option JSON for bar and pie charts, a correct/incorrect JSX pair, exact class-token combinations, and parameter lists for both tools. It falls short of 5 because the error-recovery guidance is self-contradictory — line 138 says "优先重新调用 JsxCreate 提交完整修正内容…只有在明确是个别字符问题时才用 Edit" while lines 166–171 say "失败后必须用 Edit 修正，不要重新调用 JsxCreate" — leaving the reader unsure which recovery path to execute.

Workflow Clarity

The sequence is clear: activate tools via ToolSearch, pick a tool via the decision tree and comparison table, render, and only then write a single summary text under explicit conditions. A validation feedback loop exists (server-side JSX validation with error output), but the two conflicting recovery instructions constitute a minor validation gap that keeps this below anchor 5.

Progressive Disclosure

As a single-file skill with no external references, everything is inline in one well-organized document with clear section headers, tables, and a decision tree. Most content is appropriately placed for per-invocation use, but the 30-line component whitelist and the duplicated/contradictory JsxCreate validation sections would be better split into a references file, leaving minor organization gaps at anchor 4.

Specificity

The description states several concrete behaviors — "必须先于（或同轮于）数据获取工具加载本 skill" (load before/same-turn as data tools), "必须用 JsxCreate 或 ChartRender 渲染" (render via named tools), "禁止用纯 markdown 文本收尾" (no plain-markdown ending). It falls short of a 5 because it never enumerates the capability surface (chart types, card/panel layouts), leaving minor coverage gaps.

Completeness

Both 'what' and 'when' are explicit: what — render structured output via JsxCreate/ChartRender instead of ending in plain markdown; when — an explicit condition list (topic keywords, "预计返回 3 条以上可结构化条目"), concrete example prompts, and explicit negative exclusions ("不用于：单句事实问答、纯代码输出…"). This matches anchor 5 exactly; anchor 4 would require the 'when' to be less explicit than it is.

Trigger Term Quality

Trigger coverage is comprehensive with abundant natural synonyms — 新闻/资讯/行情/排行/报告/总结/分析/对比/选型/推荐/盘点/复盘 — plus verbatim user utterances like "搜最新伊朗新闻" and "最近股市怎么样". This goes beyond anchor 4 by including actual example phrasings a user would say, matching anchor 5's comprehensiveness.

Distinctiveness Conflict Risk

The explicit exclusion clause ("不用于…在画布上增删节点（由画布子 Agent 处理）") proactively disambiguates from the closely related canvas sub-agent, showing awareness of conflict. However, broad trigger terms like 分析/总结/推荐 could overlap with general analysis or recommendation skills, so it sits at anchor 4 (mostly distinct, minor overlap) rather than 5.