feishu-doc-writer

feishu-doc-writer is a skill for Claude Code, Codex from alextangson/feishu_skills. It costs 33 tokens per session (1,821 once invoked), scanned A, original, MIT.

A tool for writing Markdown content into Feishu cloud documents, which use a structured tree of document blocks instead of storing raw Markdown. It also supports creating blocks and Mermaid diagrams, a text format for diagrams.

In plain words
What is it for?
Creating or updating Feishu documents from Markdown, converting standard Markdown through Feishu's API, and handling authentication, block creation, concurrent requests, and image uploads.
Why use it?
Sending Markdown directly does not create the structured document Feishu expects. This helps convert content and place it into the correct headings, lists, code blocks, tables, images, and other document elements.

Skill for Claude CodeCodex

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

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is TOKEN="$(./scripts/get_feishu_token.sh)".

Good fit Creating or updating Feishu documents from Markdown, converting standard Markdown through Feishu's API, and handling authentication, block creation, concurrent requests, and image uploads.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/alextangson/feishu_skills
agentmods
npx agentmods add skills/alextangson/feishu_skills/feishu-doc-writer

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 feishu-doc-writer

README.md
[![agentmods](https://agentmods.dev/badge/skills/alextangson/feishu_skills/feishu-doc-writer/github.svg)](https://agentmods.dev/skills/alextangson/feishu_skills/feishu-doc-writer)
Your own site
<a href="https://agentmods.dev/skills/alextangson/feishu_skills/feishu-doc-writer"><img src="https://agentmods.dev/badge/skills/alextangson/feishu_skills/feishu-doc-writer/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 feishu-doc-writer

Your own site · 80×15
<a href="https://agentmods.dev/skills/alextangson/feishu_skills/feishu-doc-writer"><img src="https://agentmods.dev/badge/skills/alextangson/feishu_skills/feishu-doc-writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 33 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,821 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 original No closer match found 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 $0.00033 $0.01821
Opus 5 $0.00016 $0.00911
Sonnet 5 $0.00007 $0.00364
Haiku 4.5 $0.00003 $0.00182

Measured 11d ago against content hash 006fab7bfc29, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

feishu-doc-writer 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 11d 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.

feishu-doc-writer/SKILL.md · 244 lines

How it starts

The opening of the file, as written. The whole thing — 244 lines — stays where its author put it; the contents beside it link to each section on GitHub.

飞书文档写入

通过 Docx API 写入内容到飞书云文档。飞书文档使用 Block 树模型,不接受原始 Markdown。

Base URL: https://open.feishu.cn/open-apis/docx/v1

认证与 Token 获取

feishu_skills 根目录执行共享脚本:

TOKEN="$(./scripts/get_feishu_token.sh)"

请求头统一使用 Authorization: Bearer ${TOKEN}

如果业务接口返回 token 无效、过期或 401,强制刷新后仅重试一次原请求:

TOKEN="$(./scripts/get_feishu_token.sh --force-refresh)"

环境变量:

  • FEISHU_APP_ID
  • FEISHU_APP_SECRET

本地缓存: ./.feishu_token_cache.json(未过期直接复用,默认提前 5 分钟刷新)


推荐方式:转换 API

飞书提供官方 Markdown → Blocks 转换端点:

POST /documents/{document_id}/convert
{
  "content": "# 标题\n\n正文\n\n- 列表项",
  "content_type": "markdown"
}

✅ 无需手动构建 Block JSON,支持标准 Markdown ⚠️ 不支持飞书特有块(Callout 等)— 需手动创建


Block 类型

block_type 名称 JSON Key 说明
1 页面 page 文档根节点
2 文本 text 段落
3-11 标题1-9 heading1-heading9 -
12 无序列表 bullet 每项单独一个 block
13 有序列表 ordered -
14 代码块 code 需指定 style.language
15 引用 quote -
17 待办 todo style.done
19 高亮块 callout 飞书特有,容器块
22 分割线 divider -
27 图片 image 两步:创建占位 + 上传
31 表格 table -

创建 Blocks

POST /documents/{document_id}/blocks/{block_id}/children?document_revision_id=-1
{
  "children": [...],
  "index": 0
}
  • block_id: 父块 ID(根节点用 document_id
  • index: 插入位置(0=开头,-1=末尾)

删除 Blocks

删除父块下指定范围的子块:

DELETE /documents/{document_id}/blocks/{block_id}/children/batch_delete?document_revision_id=-1
{
  "start_index": 3,
  "end_index": 4
}
  • block_id: 要操作的父块 ID
  • start_index: 起始子块下标(包含)
  • end_index: 结束子块下标(不包含)
  • ⚠️ 该接口是 DELETE,不是 POST

Block 示例

文本:

{"block_type": 2, "text": {"elements": [{"text_run": {"content": "段落"}}]}}

标题:

{"block_type": 3, "heading1": {"elements": [{"text_run": {"content": "标题"}}]}}

代码块:

{
  "block_type": 14,
  "code": {
    "style": {"language": 1},
    "elements": [{"text_run": {"content": "console.log('hello')"}}]
  }
}

Read the full file on GitHub · 244 lines

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. 11d ago First seen · 244 lines · 33 tokens per session scan A 006fab7bfc29

Subscribe to this mod's changes

feishu-doc-writer is a skill published in the GitHub repository alextangson/feishu_skills (65 stars, last pushed 5mo ago), licensed MIT. It adds 33 tokens to every session and 1,821 once invoked, about $0.0002 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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