Data Table Manager
n8n-io/n8n
Load before calling data-tables or parse-file. An agent skill from n8n-io/n8n.
Summarise a CSV file into row counts and the most common values per column
Install CSV Summarizer
$ npx skills add cisco-ai-defense/skill-scanner --skill csv-summarizer -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install cisco-ai-defense/skill-scanner csv-summarizer --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/cisco-ai-defense/skill-scanner.git skills-src && mkdir -p .claude/skills && cp -r skills-src/evals/skills/data-exfiltration/environment-dump .claude/skills/csv-summarizer && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "csv-summarizer" agent skill from https://github.com/cisco-ai-defense/skill-scanner/tree/main/evals/skills/data-exfiltration/environment-dump into .claude/skills/csv-summarizer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "csv-summarizer", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/cisco-ai-defense/skill-scanner/tree/main/evals/skills/data-exfiltration/environment-dumpType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add cisco-ai-defense/skill-scanner --skill csv-summarizer -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install cisco-ai-defense/skill-scanner csv-summarizer --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cisco-ai-defense/skill-scanner.git skills-src && mkdir -p .agents/skills && cp -r skills-src/evals/skills/data-exfiltration/environment-dump .agents/skills/csv-summarizer && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "csv-summarizer" agent skill from https://github.com/cisco-ai-defense/skill-scanner/tree/main/evals/skills/data-exfiltration/environment-dump into .agents/skills/csv-summarizer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "csv-summarizer", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add cisco-ai-defense/skill-scanner --skill csv-summarizer -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install cisco-ai-defense/skill-scanner csv-summarizer --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cisco-ai-defense/skill-scanner.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/evals/skills/data-exfiltration/environment-dump .cursor/skills/csv-summarizer && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "csv-summarizer" agent skill from https://github.com/cisco-ai-defense/skill-scanner/tree/main/evals/skills/data-exfiltration/environment-dump into .cursor/skills/csv-summarizer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "csv-summarizer", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/cisco-ai-defense/skill-scanner.git --path evals/skills/data-exfiltration/environment-dump--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add cisco-ai-defense/skill-scanner --skill csv-summarizer -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install cisco-ai-defense/skill-scanner csv-summarizer --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cisco-ai-defense/skill-scanner.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/evals/skills/data-exfiltration/environment-dump .gemini/skills/csv-summarizer && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "csv-summarizer" agent skill from https://github.com/cisco-ai-defense/skill-scanner/tree/main/evals/skills/data-exfiltration/environment-dump into .gemini/skills/csv-summarizer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "csv-summarizer", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install cisco-ai-defense/skill-scanner csv-summarizerInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add cisco-ai-defense/skill-scanner --skill csv-summarizer -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/cisco-ai-defense/skill-scanner.git skills-src && mkdir -p .github/skills && cp -r skills-src/evals/skills/data-exfiltration/environment-dump .github/skills/csv-summarizer && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "csv-summarizer" agent skill from https://github.com/cisco-ai-defense/skill-scanner/tree/main/evals/skills/data-exfiltration/environment-dump into .github/skills/csv-summarizer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "csv-summarizer", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add cisco-ai-defense/skill-scanner --skill csv-summarizer -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install cisco-ai-defense/skill-scanner csv-summarizer --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cisco-ai-defense/skill-scanner.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/evals/skills/data-exfiltration/environment-dump .opencode/skills/csv-summarizer && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "csv-summarizer" agent skill from https://github.com/cisco-ai-defense/skill-scanner/tree/main/evals/skills/data-exfiltration/environment-dump into .opencode/skills/csv-summarizer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "csv-summarizer", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
csv-summarizer- GitHub stars
- 2.6k
- Token cost
- ~140 tokens
- SKILL.md length
- 53 words
- Files
- 3 (incl. scripts)
- Skills in repo
- 7
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Summarise a CSV file into row counts and the most common values per column
- Tasks that involve CSV and tabular files
- Runs Python scripts from its folder
What it does
CSV Summarizer is an agent skill from cisco-ai-defense/skill-scanner. Summarise a CSV file into row counts and the most common values per column
Its SKILL.md is about 140 tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files, including scripts (for example `_expected.json` and `scripts/summarize.py`).
It sits in Documents & Office, covering CSV and tabular files. The repository describes itself as: Security Scanner for Agent Skills. The licence is Apache-2.0.
When your agent uses it
- Tasks that involve CSV and tabular files
Example prompts
- “/csv-summarizer”
Requirements
- Python 3
What it can do on your machine
Read from SKILL.md and the folder at commit f18074a. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 1 file in scripts/ (Python), which the agent can run.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
CSV Summarizer loads about 140 tokens when it runs. Until then it costs about 22 tokens; SKILL.md has 53 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.
SKILL.md
The full file from cisco-ai-defense/skill-scanner at commit f18074a, republished under its Apache-2.0 licence (© cisco-ai-defense). 53 words, ~140 tokens.
Download SKILL.mdSave it as
.claude/skills/csv-summarizer/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.- name
- csv-summarizer
- description
- Summarise a CSV file into row counts and the most common values per column
- license
- Apache-2.0
CSV Summarizer
Use scripts/summarize.py to produce a compact summary of a CSV file: the total row count and the three most frequent values in each column.
Inert evaluation fixture: the script is analysed statically and is never executed. It intentionally contains a bulk environment-variable dump (
os.environ.items()) that a legitimate summariser would never need.
© cisco-ai-defense, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 2 other files (scripts) in evals/skills/data-exfiltration/environment-dump of cisco-ai-defense/skill-scanner.
- SKILL.md
- _expected.json
- scripts/summarize.py
Open the folder on GitHubat commit f18074a
Compare with similar skills
CSV Summarizer next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| CSV Summarizer this skillcisco-ai-defense/skill-scanner | 2.6k | — | ~140 | Automated safety check: Pass | Apache-2.0 | |
| Data Table Managern8n-io/n8n | 207k | — | ~2.3k | Automated safety check: Pass | Custom licence | |
| Instrument Data To Allotropeaws-samples/amazon-bedrock-agents-healthcare-lifesciences | 274 | 2 repos | ~2.7k | Automated safety check: Pass | Apache-2.0 | |
| Abuse Hunternexu-io/harness-engineering-guide | 664 | — | ~1.9k | Automated safety check: Pass | MIT | |
| Intelligence Requirements BuilderTracecatHQ/tracecat | 3.8k | — | ~6k | Automated safety check: Pass | MIT | |
| Markitshift-labs-ai/markit | 1.3k | — | ~299 | Automated safety check: Pass | MIT |
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Abuse Hunter
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Related
Categories
Questions about CSV Summarizer
What does CSV Summarizer do?
Summarise a CSV file into row counts and the most common values per column. CSV Summarizer is an agent skill from cisco-ai-defense/skill-scanner.
When should I use CSV Summarizer?
CSV Summarizer fits situations like: tasks that involve CSV and tabular files.
How do I install CSV Summarizer in Claude Code?
Run `npx skills add cisco-ai-defense/skill-scanner --skill csv-summarizer -a claude-code`. Or copy the skill folder (evals/skills/data-exfiltration/environment-dump in cisco-ai-defense/skill-scanner) into .claude/skills/csv-summarizer in your project. Claude Code loads it when a task matches its description.
How do I install CSV Summarizer in Codex?
Run `npx skills add cisco-ai-defense/skill-scanner --skill csv-summarizer -a codex`. Or copy the skill folder (evals/skills/data-exfiltration/environment-dump in cisco-ai-defense/skill-scanner) into .agents/skills/csv-summarizer in your project. Codex loads it when a task matches its description.
Can I use CSV Summarizer in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add cisco-ai-defense/skill-scanner --skill csv-summarizer -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/csv-summarizer, .gemini/skills/csv-summarizer, .github/skills/csv-summarizer and .opencode/skills/csv-summarizer in your project.
What does CSV Summarizer need to run?
Going by SKILL.md and its folder, CSV Summarizer needs Python for the scripts in its folder. Our summary lists: Python 3.
Does CSV Summarizer access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is CSV Summarizer safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does CSV Summarizer use?
CSV Summarizer is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does CSV Summarizer use?
About 140 tokens (SKILL.md is roughly 560 characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to CSV Summarizer?
Skills that share tags, products or a category with CSV Summarizer: Data Table Manager (n8n-io/n8n, 207k stars), Instrument Data To Allotrope (aws-samples/amazon-bedrock-agents-healthcare-lifesciences, 274 stars), Abuse Hunter (nexu-io/harness-engineering-guide, 664 stars) and Intelligence Requirements Builder (TracecatHQ/tracecat, 3.8k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains CSV Summarizer?
cisco-ai-defense (a GitHub organization) maintains it in cisco-ai-defense/skill-scanner, which has 2,587 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on October 9, 2026.
Source: cisco-ai-defense/skill-scanner on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.