A spreadsheet-focused tool for working with Excel workbooks and CSV or TSV files. It supports tasks such as reading, editing, fixing, calculating, formatting, cleaning, and charting spreadsheet data.

Use it to inspect or modify .xlsx, .xlsm, .xltx, .csv, and .tsv files, including adding columns, working with formulas, cleaning data, formatting sheets, and creating charts.

It provides a dedicated workflow when a spreadsheet is the main input or output, helping handle structured data and workbook changes consistently.

xlsx — Skill for Claude Code and Codex by bitsky-tech: A spreadsheet-focused tool for working with Excel workbooks and…

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.

agentmods

npx agentmods add skills/bitsky-tech/bridgic-agent/xlsx

Any agent

npx skills add bitsky-tech/bridgic-agent --skill xlsx

Clone the repo

git clone --depth 1 https://github.com/bitsky-tech/bridgic-agent

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/bitsky-tech/bridgic-agent/xlsx.svg)](https://agentmods.dev/skills/bitsky-tech/bridgic-agent/xlsx)

Your own site

<a href="https://agentmods.dev/skills/bitsky-tech/bridgic-agent/xlsx"><img src="https://agentmods.dev/badge/skills/bitsky-tech/bridgic-agent/xlsx.svg" alt="Measured on agentmods" height="20"></a>

Per session 206 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,141 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

Origin unknown 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.

Model	Per session	Once invoked
Fable 5	$0.00206	$0.02141
Opus 5	$0.00103	$0.01071
Sonnet 5	$0.00041	$0.00428
Haiku 4.5	$0.00021	$0.00214

Measured 4d ago against content hash fabb1507b9ef, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

xlsx 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 4d ago.

The scan reads SKILL.md. This mod also ships 12 executable files (scripts/office/helpers/__init__.py, scripts/office/helpers/pptx_chart.py, scripts/office/helpers/pptx_slide.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

src/amphi_agent/builtin_skills/xlsx/SKILL.md · 100 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

52 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.

4d ago First seen · 100 lines · 206 tokens per session scan A fabb1507b9ef

Subscribe to this mod's changes

xlsx is a skill published in the GitHub repository bitsky-tech/bridgic-agent (47 stars, last pushed yesterday), licensed AGPL-3.0. It adds 206 tokens to every session and 2,141 once invoked, about $0.0010 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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