ljg-skills is a collection of custom Codex skills for tasks such as learning, writing, reading, relationship analysis, image creation, and investment analysis. Codex users install selected skills or the whole collection through a skills command-line interface. The catalogue entries are the collection's individual skills, plugin, and instruction.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add lijigang/ljg-skills --skill ljg-classicgit clone --depth 1 https://github.com/lijigang/ljg-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/lijigang/ljg-skills/ljg-classic)<a href="https://agentmods.dev/skills/lijigang/ljg-skills/ljg-classic"><img src="https://agentmods.dev/badge/skills/lijigang/ljg-skills/ljg-classic/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/lijigang/ljg-skills/ljg-classic"><img src="https://agentmods.dev/badge/skills/lijigang/ljg-skills/ljg-classic.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00129 | $0.01332 |
| Opus 5 | $0.00064 | $0.00666 |
| Sonnet 5 | $0.00026 | $0.00266 |
| Haiku 4.5 | $0.00013 | $0.00133 |
Grade A, and why
ljg-classic scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
ljg-classic：古文笺
原文是主干，注解贴着字词生长，章节解读把整章重新接成一个能运行的判断。最终交付一张标明书名与章节的 PNG 长图到 $HOME/Downloads/；生成与复验过程留在独占 /tmp 工作区。
Workflow Notification
执行工作流时，只输出文字通知：
Running the **AnnotateAndRender** workflow in the **ljg-classic** skill to annotate and render the chapter...
不发送开始、阶段或进度语音；完成语音由系统统一处理。
Workflow Routing
| Workflow | Trigger | File |
|---|---|---|
| AnnotateAndRender | 逐字注解、彩色夹注、章节解读、生成古文 PNG | Workflows/AnnotateAndRender.md |
快速合同
- 输入必须能确定原文、书名、章节；版本不明时保留异文边界。
- 所有非标点原文片段都有对应注解，不能只挑“重点词”。
- 青色解释字词与语法，朱色解释整句动作，赭色只标异文与不确定处；章节解读使用暖纸深墨，不用蓝色长正文。
- 解读继承
ljg-plain的直白中文和ljg-writes的「条件—机制—结果、迁移、边界」，但不显示「解读边界」等写作脚手架。 - 默认调用内置
image_gen生成一幅无字、低干扰的章节意旨图，放在章节标题与原文之间；图像不可用时继续生成无图版本并说明。 - 每次运行先建立独占
/tmp/ljg-classic-*工作区；JSON、HTML、manifest、意旨图、候选 PNG 与重叠 QA 切片都只放在该工作区。 - 候选 PNG 完成硬验收后，才复制到
$HOME/Downloads/作为最终卡片；用户显式指定另一最终路径时以本次指令为准。未经明确要求不覆盖同名文件。
Gotchas
- “逐字”指原文覆盖率 100%，不等于把固定词拆成失去意义的单字；成词、虚词功能和通假关系按最小有意义单位注。
- 注解不能改写原文。底本疑似错字、通假或版本差异用
variant标出，不能静默替换。 - 字词注与句义注若都写成长句，原文会被淹没。字词注只解决局部读法，句义注只补当前动作或因果。
- 章节解读不是逐句译文的重复，也不是金句合集。它只运行一个主关系，并说明一个可迁移场景或失效边界。
- 边界要自然写进文章，不另起「解读边界」「应用边界」「迁移测试」之类的方法标题；这些词会让读者从内容中跳回写作后台。
- 顶部配图负责压缩母题，不负责复述情节。禁止图中文字、书法、印章、水印与高饱和宗教奇观；画面细节太满会抢走原文的第一阅读权。
- PNG 文件存在不算完成。必须核对真实尺寸、标题章节、注解覆盖、页面底部、整图与长图切片。
- 不直接渲染到 Downloads。先在
/tmp验收候选 PNG，再复制最终卡片，并读回候选与交付文件的 SHA-256 一致性。 - 图像宽度固定不代表字号固定。文字量增加时先增高页面和调整断行，不能把正文字号压到难读。
- 标点不能作为可独立换行的单元。句末标点与闭引号跟住前一原文 token；段首引号跟住后一 token，避免孤行。
Examples
Example 1：整章古文排版
User: 「/ljg-classic 《道德经》第十六章，逐字注解并讲透」
→ 锁定书名、章节与底本
→ 逐段生成字词注、句义注和全章解读
→ 在独占 `/tmp` 工作区完成验收，只把带书名章节的 1080px 长 PNG 交付到 `$HOME/Downloads/`
Example 2：用户提供原文
User: 「把这段《论语·学而》做成文言文夹注图，最后写完整解读」
→ 原文逐片段覆盖，通假与语法另行标色
→ 解读用直白中文跑通条件、机制和结果
→ JSON、HTML、manifest、配图和 QA 切片保留在 `/tmp`；最终 PNG 交付到 `$HOME/Downloads/`
Example 3：只翻译一句
User: 「这句古文是什么意思？」
→ 不触发 ljg-classic
→ 直接做简短翻译或使用 ljg-plain
What ships with it
12 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- .gitignore 14 B
- bun.lock 844 B
- package.json 282 B
- References/AnnotationMethod.md 2.2 KB
- References/InputSchema.md 2.7 KB
- References/LayoutGrammar.md 4.0 KB
- Tools/RenderClassic.help.md 900 B
- Tools/RenderClassic.test.ts 21 KB runs code
- Tools/RenderClassic.ts 30 KB runs code
- Tools/ValidateClassic.help.md 540 B
- Tools/ValidateClassic.ts 19 KB runs code
- Workflows/AnnotateAndRender.md 8.7 KB
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 12d ago First seen · 78 lines · 129 tokens per session scan A fcb651acba26
ljg-classic is a skill published in the GitHub repository lijigang/ljg-skills (7,340 stars, last pushed 3d ago), licensed MIT. It adds 129 tokens to every session and 1,332 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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