content-summarizer

content-summarizer is a skill for Claude Code, Codex from elisaterumi-ai/agent-skills-in-practice. It costs 21 tokens per session (77 once invoked), scanned A, original, Apache-2.0.

A skill for shortening long text into its main ideas and important points.

In plain words
What is it for?
Use it to create a short summary and a concise list of key points from long-form content.
Why use it?
It removes repetition and saves time when a document is too long to read in full.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to create a short summary and a concise list of key points from long-form content.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/elisaterumi-ai/agent-skills-in-practice/content-summarizer
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.

Any agent
npx skills add elisaterumi-ai/agent-skills-in-practice --skill content-summarizer
Clone the repo
git clone --depth 1 https://github.com/elisaterumi-ai/agent-skills-in-practice

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.

agentmods badge for content-summarizer

README.md
[![agentmods](https://agentmods.dev/badge/skills/elisaterumi-ai/agent-skills-in-practice/content-summarizer/github.svg)](https://agentmods.dev/skills/elisaterumi-ai/agent-skills-in-practice/content-summarizer)
Your own site
<a href="https://agentmods.dev/skills/elisaterumi-ai/agent-skills-in-practice/content-summarizer"><img src="https://agentmods.dev/badge/skills/elisaterumi-ai/agent-skills-in-practice/content-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.

agentmods 80×15 button for content-summarizer

Your own site · 80×15
<a href="https://agentmods.dev/skills/elisaterumi-ai/agent-skills-in-practice/content-summarizer"><img src="https://agentmods.dev/badge/skills/elisaterumi-ai/agent-skills-in-practice/content-summarizer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 77 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00021 $0.00077
Opus 5 $0.00010 $0.00039
Sonnet 5 $0.00004 $0.00015
Haiku 4.5 $0.00002 $0.00008

Measured 12d ago against content hash 875d27f1f2da, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

content-summarizer 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 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.

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.

examples/content-summarizer/SKILL.md · 21 lines

What it actually says

Instructions

  1. Identify main ideas
  2. Remove redundant information
  3. Preserve key insights
  4. Keep concise

Output Format

Summary

Short summary

Key Points

  • Point 1
  • Point 2
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.

  1. 12d ago First seen · 21 lines · 21 tokens per session scan A 875d27f1f2da

Subscribe to this mod's changes

content-summarizer is a skill published in the GitHub repository elisaterumi-ai/agent-skills-in-practice (133 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 21 tokens to every session and 77 once invoked, about $0.0001 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.