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.
npx skills add joelazar/kagi-skills --skill kagi-summarizergit clone --depth 1 https://github.com/joelazar/kagi-skillsWrote 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.
[](https://agentmods.dev/skills/joelazar/kagi-skills/kagi-summarizer)<a href="https://agentmods.dev/skills/joelazar/kagi-skills/kagi-summarizer"><img src="https://agentmods.dev/badge/skills/joelazar/kagi-skills/kagi-summarizer/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.
<a href="https://agentmods.dev/skills/joelazar/kagi-skills/kagi-summarizer"><img src="https://agentmods.dev/badge/skills/joelazar/kagi-skills/kagi-summarizer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 5.1 | $0.00069 | $0.01809 |
| Opus 5 | $0.00034 | $0.00905 |
| Sonnet 5 | $0.00014 | $0.00362 |
| Haiku 4.5 | $0.00007 | $0.00181 |
Grade A, and why
kagi-summarizer scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
TAG=$(curl -fsSL "https://api.github.com/repos/joelazar/kagi-skills/releases/latest" | grep '"tag_name"' | cut -d'"' -f4) How it starts
The opening of the file, as written. The whole thing — 183 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Kagi Universal Summarizer
Summarize any URL or block of text using Kagi's Universal Summarizer API. Handles articles, papers, PDFs, video transcripts, forum threads, and more. Supports multiple summarization engines and can translate output to 28 languages.
This skill uses a Go binary for fast startup and zero runtime dependencies. The binary can be downloaded pre-built or compiled from source.
Setup
Requires a Kagi account with API access enabled. Uses the same KAGI_API_KEY as all other kagi-* skills.
- Create an account at https://kagi.com/signup
- Navigate to Settings → Advanced → API portal: https://kagi.com/settings/api
- Generate an API Token
- Add funds at: https://kagi.com/settings/billing_api
- Add to your shell profile (
~/.profileor~/.zprofile):export KAGI_API_KEY="your-api-key-here" - Install the binary — see Installation below
Pricing
Token-based, billed per 1,000 tokens processed. Cached requests are free.
| Plan | Price per 1k tokens |
|---|---|
| Standard (Cecil / Agnes) | $0.030 |
| Kagi Ultimate subscribers | $0.025 (automatically applied) |
| Muriel (enterprise-grade) | higher — check API pricing page |
Usage
# Summarize a URL
{baseDir}/kagi-summarizer.sh https://example.com/article
# Summarize raw text
{baseDir}/kagi-summarizer.sh --text "Paste your article text here..."
# Pipe text from stdin
cat paper.txt | {baseDir}/kagi-summarizer
echo "Long text..." | {baseDir}/kagi-summarizer.sh --type takeaway
# Choose engine
{baseDir}/kagi-summarizer.sh https://arxiv.org/abs/1706.03762 --engine muriel
# Get bullet-point takeaways instead of prose
{baseDir}/kagi-summarizer.sh https://example.com/article --type takeaway
# Translate summary to another language
{baseDir}/kagi-summarizer.sh https://example.com/article --lang DE
{baseDir}/kagi-summarizer.sh https://example.com/article --lang JA
# JSON output
{baseDir}/kagi-summarizer.sh https://example.com/article --json
# Show balance only when needed
{baseDir}/kagi-summarizer.sh https://example.com/article --show-balance
{baseDir}/kagi-summarizer.sh balance
# Combined options
{baseDir}/kagi-summarizer.sh https://arxiv.org/abs/1706.03762 --engine muriel --type takeaway --lang EN --json
What ships with it
4 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.
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.
- 12d ago First seen · 183 lines · 69 tokens per session scan A aba7f56af5ac
kagi-summarizer is a skill published in the GitHub repository joelazar/kagi-skills (18 stars, last pushed 5mo ago), licensed MIT. It adds 69 tokens to every session and 1,809 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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