Official agent skill

Text Analyzer

by NVIDIA in NVIDIA/SkillEvaluator

Analyze text content and produce statistics including word count, line count, character count, most frequent words, and readability metrics.

OfficialApache-2.0Auto-check passedAgent Workflows

Install Text Analyzer

skills CLI
$ npx skills add NVIDIA/SkillEvaluator --skill text-analyzer -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install NVIDIA/SkillEvaluator text-analyzer --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/NVIDIA/SkillEvaluator.git skills-src && mkdir -p .claude/skills && cp -r skills-src/src/skillevaluator/tier3/reference_skills/text-analyzer .claude/skills/text-analyzer && rm -rf skills-src

Use ~/.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/

Facts

Skill name
text-analyzer
GitHub stars
544
Token cost
~453 tokens
SKILL.md length
140 words
Files
4 (incl. scripts)
Skills in repo
5
Repo updated
First seen
Licence
Apache-2.0

At a glance

Analyze text content and produce statistics including word count, line count, character count, most frequent words, and readability metrics.

  • Works in 3 steps: Read this SKILL.md to understand… → Run scripts/analyze_text.py with the… → Return the analysis results to the user.
  • Tasks that involve Agent evaluation and testing
  • SKILL.md covers Purpose, Agent Instructions, Examples and Limitations, plus 1 more section
  • Runs Python scripts from its folder; calls python

What it does

Text Analyzer is an agent skill from NVIDIA/SkillEvaluator, published by the product's own GitHub organization. Analyze text content and produce statistics including word count, line count, character count, most frequent words, and readability metrics. Works on any plain text input provided inline or from a file path.

Its SKILL.md is about 450 tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including scripts (for example `evals/evals.json`, `evals/evals2.json` and `scripts/analyze_text.py`). Compatibility notes: Python 3.10+, no external dependencies

It sits in Agent Workflows, covering Agent evaluation and testing, Plain language and style rules and Statistics. The repository describes itself as: Multi-tier framework for evaluating AI agent skills with quality gates, semantic overlap detection, synthetic evaluation dataset generation, and live agent evaluation that… The licence is Apache-2.0.

When your agent uses it

  • Tasks that involve Agent evaluation and testing
  • Tasks that involve Plain language and style rules
  • Tasks that involve Statistics

Example prompts

  • “/text-analyzer”

Requirements

  • Python 3
  • Compatibility (from SKILL.md): Python 3.10+, no external dependencies

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

  1. Read this SKILL.md to understand capabilities.
  2. Run scripts/analyze_text.py with the appropriate arguments.
  3. Return the analysis results to the user.

What it can do on your machine

Read from SKILL.md and the folder at commit f32c884. 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.

    Shell commands in SKILL.md call:

    • python

    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.

  • Compatibility

    Python 3.10+, no external dependencies

    From compatibility in the SKILL.md frontmatter.

Context cost

Text Analyzer loads about 453 tokens when it runs. Until then it costs about 55 tokens; SKILL.md has 140 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~55
When it runs · the whole SKILL.md, loaded when a task matches
~453

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 NVIDIA/SkillEvaluator at commit f32c884, republished under its Apache-2.0 licence (© NVIDIA). 140 words, ~453 tokens.

Download SKILL.mdSave it as .claude/skills/text-analyzer/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.
name
text-analyzer
description
Analyze text content and produce statistics including word count, line count, character count, most frequent words, and readability metrics. Works on any plain text input provided inline or from a file path.
compatibility
Python 3.10+, no external dependencies
metadata.author
SkillEvaluator Maintainers <maintainers@example.com>

Text Analyzer

Analyze text and produce structured statistics.

Purpose

Provide quick text analytics — word counts, line counts, character counts, top frequent words, average word length, and sentence count — for any plain-text input.

Agent Instructions

  1. Read this SKILL.md to understand capabilities.
  2. Run scripts/analyze_text.py with the appropriate arguments.
  3. Return the analysis results to the user.

Examples

Usage
bash
# Analyze inline text
python scripts/analyze_text.py --text "Your text content here"

# Analyze a file
python scripts/analyze_text.py --file /path/to/file.txt

# JSON output (default is human-readable)
python scripts/analyze_text.py --text "Hello world" --json
Output

The script prints a structured report with:

  • Word count — total words
  • Line count — total lines
  • Character count — total characters (including whitespace)
  • Sentence count — estimated sentence count
  • Average word length — mean characters per word
  • Top 5 words — most frequent words and their counts

Limitations

  • Sentence detection uses simple period/question/exclamation splitting; may be inaccurate for abbreviations (e.g., "U.S.A.").
  • Non-UTF-8 files will be read with errors replaced.

Troubleshooting

ProblemFix
FileNotFoundErrorCheck the --file path exists
Empty outputEnsure --text or --file is provided

© NVIDIA, 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 3 other files (scripts) in src/skillevaluator/tier3/reference_skills/text-analyzer of NVIDIA/SkillEvaluator.

  • SKILL.md
  • evals/evals.json
  • evals/evals2.json
  • scripts/analyze_text.py

Open the folder on GitHubat commit f32c884

Compare with similar skills

Text Analyzer 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.

Text Analyzer compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Text Analyzer this skillNVIDIA/SkillEvaluator544—~453Automated safety check: PassApache-2.0
Regression Modelerzebbern/claude-code-guide4.6k—~909Automated safety check: PassMIT
Review Experiment Resultsharness/harness-skills115—~3.9kAutomated safety check: PassApache-2.0
Librarianjdforsythe/forge151—~5.1kAutomated safety check: PassMIT
Insightsrohitg00/pro-workflow2.9k1 repos~719Automated safety check: PassNone
Prediction Report WriterNVIDIA-AI-Blueprints/deep-researcher-agent883—~2.5kAutomated safety check: PassApache-2.0

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Questions about Text Analyzer

What does Text Analyzer do?

Analyze text content and produce statistics including word count, line count, character count, most frequent words, and readability metrics. Text Analyzer is an agent skill from NVIDIA/SkillEvaluator, published by the product's own GitHub organization. Analyze text content and produce statistics including word count, line count, character count, most frequent words, and readability metrics.

When should I use Text Analyzer?

Text Analyzer fits situations like: tasks that involve Agent evaluation and testing; tasks that involve Plain language and style rules; tasks that involve Statistics.

How do I install Text Analyzer in Claude Code?

Run `npx skills add NVIDIA/SkillEvaluator --skill text-analyzer -a claude-code`. Or copy the skill folder (src/skillevaluator/tier3/reference_skills/text-analyzer in NVIDIA/SkillEvaluator) into .claude/skills/text-analyzer in your project. Claude Code loads it when a task matches its description.

How do I install Text Analyzer in Codex?

Run `npx skills add NVIDIA/SkillEvaluator --skill text-analyzer -a codex`. Or copy the skill folder (src/skillevaluator/tier3/reference_skills/text-analyzer in NVIDIA/SkillEvaluator) into .agents/skills/text-analyzer in your project. Codex loads it when a task matches its description.

Can I use Text Analyzer 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 NVIDIA/SkillEvaluator --skill text-analyzer -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/text-analyzer, .gemini/skills/text-analyzer, .github/skills/text-analyzer and .opencode/skills/text-analyzer in your project.

What does Text Analyzer need to run?

Going by SKILL.md and its folder, Text Analyzer needs Python for the scripts in its folder and the command-line tools its instructions call (python). Our summary lists: Python 3. Compatibility (from SKILL.md): Python 3.10+, no external dependencies.

Does Text Analyzer 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 Text Analyzer 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 Text Analyzer use?

Text Analyzer is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Text Analyzer use?

About 453 tokens (SKILL.md is roughly 1.8k 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 Text Analyzer?

Skills that share tags, products or a category with Text Analyzer: Regression Modeler (zebbern/claude-code-guide, 4.6k stars), Review Experiment Results (harness/harness-skills, 115 stars), Librarian (jdforsythe/forge, 151 stars) and Insights (rohitg00/pro-workflow, 2.9k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Text Analyzer?

NVIDIA (a GitHub organization, an official publisher) maintains it in NVIDIA/SkillEvaluator, which has 544 GitHub stars. The repository holds 5 skills in this directory. The repository was last updated on October 7, 2026.

Source: NVIDIA/SkillEvaluator on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.