Readability
Analyze text readability with Flesch-Kincaid, Gunning Fog, SMOG, and other metrics. Returns objective scores with interpretation and recommendations.
Install
$ agentstack add skill-humanizerai-agent-skills-readability ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Links to your public security report.[](https://agentstack.voostack.com/security/report/skill-humanizerai-agent-skills-readability) Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
Analyze Readability
Calculate and display readability metrics for the provided text.
Input
The user provides text in $ARGUMENTS. If no text provided, ask for it.
Metrics to Calculate
Core Scores
| Metric | Formula | Interpretation | |--------|---------|----------------| | Flesch Reading Ease | 206.835 - 1.015(words/sentences) - 84.6(syllables/words) | 0-100, higher = easier | | Flesch-Kincaid Grade | 0.39(words/sentences) + 11.8(syllables/words) - 15.59 | US grade level | | Gunning Fog Index | 0.4[(words/sentences) + 100(complex words/words)] | Years of education | | SMOG Index | 1.043 × √(complex words × 30/sentences) + 3.1291 | Grade level |
Complex words = 3+ syllables
Text Statistics
- Word count
- Sentence count
- Average sentence length (words)
- Average word length (characters)
- Complex words count and %
- Passive voice sentences (estimate)
Output Format
## Readability Analysis
### Scores
| Metric | Score | Meaning |
|--------|-------|---------|
| Flesch Reading Ease | [X] | [interpretation] |
| Flesch-Kincaid Grade | [X] | [grade level] |
| Gunning Fog | [X] | [years education] |
| SMOG | [X] | [grade level] |
### Statistics
- Words: [X]
- Sentences: [X]
- Avg sentence length: [X] words
- Complex words: [X] ([Y]%)
### Target Audience
[Who can easily read this based on scores]
### Recommendations
1. [Specific suggestion]
2. [Specific suggestion]
3. [Specific suggestion]Interpretation Guide
| Flesch Score | Grade | Audience | |--------------|-------|----------| | 90-100 | 5th | Very easy | | 80-89 | 6th | Easy | | 70-79 | 7th | Fairly easy | | 60-69 | 8-9th | Standard | | 50-59 | 10-12th | Fairly difficult | | 30-49 | College | Difficult | | 0-29 | Graduate | Very difficult |
Recommendations
Based on scores, suggest:
- Sentences to shorten (if avg > 20 words)
- Complex words to simplify
- Passive voice to convert to active
- Specific examples of what to fix
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: humanizerai
- Source: humanizerai/agent-skills
- License: MIT
- Homepage: https://humanizerai.com
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.