dynamic-large-file-parquet-analysis

dynamic-large-file-parquet-analysis is a skill for Claude Code, Codex from OpenSenseNova/SenseNova-Skills. It costs 67 tokens per session (592 once invoked), scanned A, original, MIT.

A workflow for counting and filtering very large Excel files, converting files with at least 10,000 rows to Parquet when available. Parquet is a column-based format that can speed up data reading.

In plain words
What is it for?
Use it to filter a target column, group the matching rows by another column, calculate shares and totals, and export the results.
Why use it?
It makes large spreadsheets easier to process and produces grouped totals and percentages for matching records.

Skill for Claude CodeCodex

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

Good fit Use it to filter a target column, group the matching rows by another column, calculate shares and totals, and export the results.

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Install with agentmods
npx agentmods add skills/opensensenova/sensenova-skills/table-theme-styling
About the project

SenseNova-Skills is a collection of modular skills that extend SenseNova models with office-assistant capabilities such as image generation, presentation creation, spreadsheet analysis, and research. The skills are designed for use in agent runtimes and can be combined into productivity workflows; the catalogue entries are individual skills and agents from this collection.

OpenSenseNova/SenseNova-Skills · 5,476 stars · on GitHub

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 OpenSenseNova/SenseNova-Skills --skill table-theme-styling
Clone the repo
git clone --depth 1 https://github.com/OpenSenseNova/SenseNova-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 dynamic-large-file-parquet-analysis

README.md
[![agentmods](https://agentmods.dev/badge/skills/opensensenova/sensenova-skills/table-theme-styling/github.svg)](https://agentmods.dev/skills/opensensenova/sensenova-skills/table-theme-styling)
Your own site
<a href="https://agentmods.dev/skills/opensensenova/sensenova-skills/table-theme-styling"><img src="https://agentmods.dev/badge/skills/opensensenova/sensenova-skills/table-theme-styling/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 dynamic-large-file-parquet-analysis

Your own site · 80×15
<a href="https://agentmods.dev/skills/opensensenova/sensenova-skills/table-theme-styling"><img src="https://agentmods.dev/badge/skills/opensensenova/sensenova-skills/table-theme-styling.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 67 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 592 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00067 $0.00592
Opus 5 $0.00034 $0.00296
Sonnet 5 $0.00013 $0.00118
Haiku 4.5 $0.00007 $0.00059

Measured 10d ago against content hash 2bdd1b059471, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

dynamic-large-file-parquet-analysis 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 10d 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.

skills/sn-da-excel-workflow/capability/excel-table-styling/table-theme-styling/SKILL.md · 61 lines

What it actually says

Skill Steps

This sub-skill covers one capability of the Excel workflow. For reading/counting/Parquet optimization, see the parent workflow SKILL.md.

Step1 动态读取数据(Parquet加速或常规读取)。

# 若已加载 sn-da-large-file-analysis 技能,将 Excel 文件转换为 Parquet 格式加速读取
if 'da_large_file_analysis' in globals():
    # 假设 sn-da-large-file-analysis 转换后生成了 parquet 文件
    parquet_path = 'auto_converted_data.parquet'
    df = pd.read_parquet(parquet_path)
    print("已使用 Parquet 格式加速读取大文件。")
else:
    df = pd.read_excel(file_path, sheet_name='Sheet1', header=0)
    print("文件较小,使用常规方式读取。")

Step2 对目标列进行条件筛选,并按分组列进行分类汇总(包含占比与总计)。

target_col = '目标列名'  # 示例:'危险级别'
group_col = '分组列名'   # 示例:'分项工程'
target_value = 'TARGET_VALUE'  # 示例:'★★★★'

# 筛选包含特定值的记录
df_filtered = df[df[target_col].astype(str).str.contains(target_value, na=False)].copy()

# 分类汇总
result = df_filtered[group_col].value_counts()
result_df = pd.DataFrame({
    group_col: result.index,
    '数量': result.values
})

# 计算占比并添加总计行
if not result_df.empty:
    result_df['占比'] = (result_df['数量'] / result_df['数量'].sum()).apply(lambda x: f"{x:.2%}")
    total_row = pd.DataFrame({
        group_col: ['总计'], 
        '数量': [result_df['数量'].sum()], 
        '占比': ['100.00%']
    })
    result_df = pd.concat([result_df, total_row], ignore_index=True)

Step3 导出汇总结果并生成下载链接。

output_path = 'filtered_summary_output.xlsx'

# 将分类汇总结果保存为表格文件
result_df.to_excel(output_path, index=False)

# 输出下载链接供用户获取
print("数据处理与分类汇总完成。")
print(f"下载链接: {output_path}")
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. 10d ago First seen · 61 lines · 67 tokens per session scan A 2bdd1b059471

Subscribe to this mod's changes

dynamic-large-file-parquet-analysis is a skill published in the GitHub repository OpenSenseNova/SenseNova-Skills (5,476 stars, last pushed today), licensed MIT. It adds 67 tokens to every session and 592 once invoked, about $0.0003 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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