lark-markdown

lark-markdown is a skill for Claude Code, Codex from davidtoby/agent-skills. It costs 73 tokens per session (1,344 once invoked), scanned A, a copy of lark-markdown, MIT.

A tool for working with Markdown files stored in Feishu, a Chinese workplace collaboration platform. It can read, create, upload, edit, overwrite, and compare those files.

In plain words
What is it for?
Use it to fetch a Markdown file, create or upload one, replace selected text, update its contents, or compare local and remote or historical versions.
Why use it?
It keeps Markdown file changes and comparisons in one place without treating them as online documents or general cloud-storage tasks.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to fetch a Markdown file, create or upload one, replace selected text, update its contents, or compare local and remote or historical versions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/davidtoby/agent-skills/lark-markdown
Install

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.

Any agent
npx skills add davidtoby/agent-skills --skill lark-markdown
Clone the repo
git clone --depth 1 https://github.com/davidtoby/agent-skills

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for lark-markdown

README.md
[![agentmods](https://agentmods.dev/badge/skills/davidtoby/agent-skills/lark-markdown/github.svg)](https://agentmods.dev/skills/davidtoby/agent-skills/lark-markdown)
Your own site
<a href="https://agentmods.dev/skills/davidtoby/agent-skills/lark-markdown"><img src="https://agentmods.dev/badge/skills/davidtoby/agent-skills/lark-markdown/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.

agentmods 80×15 button for lark-markdown

Your own site · 80×15
<a href="https://agentmods.dev/skills/davidtoby/agent-skills/lark-markdown"><img src="https://agentmods.dev/badge/skills/davidtoby/agent-skills/lark-markdown.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,344 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 95% copy Near-identical to another mod in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00073 $0.01344
Opus 5 $0.00036 $0.00672
Sonnet 5 $0.00015 $0.00269
Haiku 4.5 $0.00007 $0.00134

Measured 7d ago against content hash 50024d5e506a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

lark-markdown 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 7d 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.

Origin

This is a copy

95% identical to lark-markdown — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/lark-markdown/SKILL.md · 71 lines

How it starts

The opening of the file, as written. The whole thing — 71 lines — stays where its author put it; the contents beside it link to each section on GitHub.

markdown (v1)

CRITICAL — 开始前 MUST 先用 Read 工具读取 ../lark-shared/SKILL.md,其中包含认证、权限处理

快速决策

  • 身份:Markdown 文件通常属于用户云空间资源,优先使用 --as user。如为自动化场景,或应用已创建并持有目标文件权限,可按场景使用 --as bot。首次以 user 身份访问前执行 lark-cli auth login

  • markdown +create / +overwrite 失败时,先判断是不是身份和权限问题:bot 更常见的是 app scope 或目标目录 ACL,user 更常见的是用户授权或用户 ACL;不要不加判断地来回切身份重试。

  • 用户要上传、创建一个原生 .md 文件,使用 lark-cli markdown +create

  • 用户要比较原生 .md 文件的历史版本差异,或比较远端 Markdown 与本地草稿,使用 lark-cli markdown +diff

  • 用户要读取 Drive 里某个 .md 文件内容,使用 lark-cli markdown +fetch

  • 用户要对 Markdown 文件做局部文本替换 / 正则替换,优先使用 lark-cli markdown +patch

  • 用户要覆盖更新 Drive 里某个 .md 文件内容,使用 lark-cli markdown +overwrite

  • 用户要先拿 Markdown 文件的历史版本号,再做比较/下载/回滚,先用 lark-drivelark-cli drive +version-history

  • 用户要把本地 Markdown 导入成在线新版文档(docx),不要用本 skill,改用 lark-drivelark-cli drive +import --type docx

  • 用户要对 Markdown 文件做rename / move / delete / 搜索 / 权限 / 评论等云空间(云盘/云存储)操作,不要留在本 skill,切到 lark-drive

  • markdown +create / +overwrite 命中 missing scopepermission deniednot foundquota_exceededversion limit 时,默认停止重试并按报错 hint 处理;只有 rate_limitserver_error 或临时网络错误才做有限退避重试。

  • markdown +create 的目标参数不要猜:Drive 文件夹用 --folder-token,Wiki 节点用 --wiki-token。如果用户给的是 URL,可以直接传完整 URL;CLI 会归一成 token。不要把 doc/sheet/wiki URL 放进 --folder-token 试错。

核心边界

  • 本 skill 处理的是 Drive 中作为普通文件存储的 Markdown,不是 docx 文档
  • --name 和本地 --file 文件名都必须显式带 .md 后缀;不满足时 shortcut 会直接报错
  • --content 支持:
    • 直接传字符串
    • @file 从本地文件读取内容
    • - 从 stdin 读取内容
  • markdown +patch 的内部语义是:先完整下载 Markdown,再本地替换,再整文件覆盖上传
  • markdown +patch 不是服务端原子 patch;它是 CLI 侧编排出来的局部更新能力
  • markdown +patch 当前只支持单组 --pattern / --content
  • markdown +patch 替换后的最终内容不能为空;CLI 会拒绝上传空文件,因为 Drive 不支持零字节 Markdown,且空文件通常是误操作
  • --file 只接受本地 .md 文件路径

正则替换时要特别注意 --pattern 的转义:

# BAD: 未转义正则特殊字符,可能匹配到错误位置
lark-cli markdown +patch --file-token boxcnxxxx --regex --pattern "version (1.0)" --content "version (2.0)"

# GOOD: 显式转义括号和点号
lark-cli markdown +patch --file-token boxcnxxxx --regex --pattern "version \\(1\\.0\\)" --content "version (2.0)"

Read the full file on GitHub · 71 lines

Files

What ships with it

5 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.

Changes

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.

  1. 7d ago First seen · 71 lines · 73 tokens per session scan A 50024d5e506a

Subscribe to this mod's changes

lark-markdown is a skill published in the GitHub repository davidtoby/agent-skills (10 stars, last pushed 1mo ago), licensed MIT. It adds 73 tokens to every session and 1,344 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 95% identical to lark-markdown, differing in 2 lines, and is treated as a copy.

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