invalid-data-cleaning SKILL.md skillA
invalid-data-cleaning from opensensenova/sensenova-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add opensensenova/sensenova-skills/invalid-data-cleaning@git:20260426.f0ab496Pins git:20260426.f0ab496 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- opensensenova/sensenova-skills
- Path
skills/sn-da-excel-workflow/capability/excel-data-cleaning/invalid-data-cleaning/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260426.f0ab496, committed Apr 26, 2026
- Size
- 2,252 bytes
- Repository stars
- 6,031
- License
- MIT
用于大规模Excel数据的预处理，通过统计总行数判断是否转换为Parquet格式以提升读写效率，并使用正则表达式清洗指定文本列（如仅保留中文字符），最后导出清洗后的文件并提供下载链接。.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Invalid_Data_Cleaning
> This sub-skill covers one capability of the Excel workflow. For reading/counting/Parquet optimization, see the parent workflow SKILL.md.
## Skill Steps
Step1 根据总行数判断是否数据量过大，若满足条件，则将 Excel 文件转换为 Parquet 格式提升读写效率，再读取数据进行后续分析。
```python
import pandas as pd
file_path = "input_data.xlsx"
parquet_path = "temp_data.parquet"
# 读取 Excel 文件并转换为 Parquet 格式
xls = pd.ExcelFile(file_path)
dfs = []
for sheet in xls.sheet_names:
df_sheet = pd.read_excel(xls, sheet_name=sheet)
dfs.append(df_sheet)
# 合并所有 sheet 数据并写入 Parquet 文件
if dfs:
df_all = pd.concat(dfs, ignore_index=True)
df_all.to_parquet(parquet_path, engine='pyarrow', index=False)
# 读取 Parquet 文件用于后续处理
df = pd.read_parquet(parquet_path)
```
Step2 对目标文本字段中的特殊字符（如 #、-、数字）进行清洗，使用正则表达式仅保留中文字符。
```python
import pandas as pd
import re
target_col = 'target_column' # 替换为实际需要清洗的列名
# 定义清洗函数
def clean_chinese_text(text):
if pd.isna(text):
return text
s = str(text)
# 提取所有中文字符（Unicode 范围：[一-鿿]）
chinese_chars = re.findall(r'[一-鿿]', s)
cleaned = ''.join(chinese_chars)
return cleaned if cleaned else ''
# 应用清洗函数
if target_col in df.columns:
…Read the whole file at its exact version.
How to install
mdr add opensensenova/sensenova-skills/invalid-data-cleaning@sha256:25a890b17ac40316The line at the top of this page pins the label git:20260426.f0ab496, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_bf3uip5oq7tpslor)
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Versions
The registry has recorded 1 version of this file, committed on Apr 26, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2252 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
opensensenova/sensenova-skills · 6,031 stars · license MIT · pushed 2026-11-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_bf3uip5oq7tpslor GET https://markdownregistry.com/api/v1/resolve?ref=opensensenova/sensenova-skills/invalid-data-cleaning GET https://markdownregistry.com/api/v1/blob/25a890b17ac40316bc33d02bdc969a5da517f15af88ee1bd9ea09bd5dab5dd6c
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.