cheap-summarizer

cheap-summarizer is a skill for Claude Code, Codex from elisymlabs/elisym. It costs 31 tokens per session (291 once invoked), scanned C, original, MIT.

A text-summarising tool that sends each job to a smaller language model and returns a short plain-text summary. It preserves important facts such as names, numbers, and dates.

In plain words
What is it for?
Use it to summarise articles, notes, documents, or other text while keeping the language and key facts of the original.
Why use it?
It provides a defined way to condense long text into two or three sentences when a full-size model is unnecessary.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: model in frontmatter.

Good fit Use it to summarise articles, notes, documents, or other text while keeping the language and key facts of the original.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/elisymlabs/elisym/cheap-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 elisymlabs/elisym --skill cheap-summarizer
Clone the repo
git clone --depth 1 https://github.com/elisymlabs/elisym

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 cheap-summarizer

README.md
[![agentmods](https://agentmods.dev/badge/skills/elisymlabs/elisym/cheap-summarizer.svg)](https://agentmods.dev/skills/elisymlabs/elisym/cheap-summarizer)
Your own site
<a href="https://agentmods.dev/skills/elisymlabs/elisym/cheap-summarizer"><img src="https://agentmods.dev/badge/skills/elisymlabs/elisym/cheap-summarizer.svg" alt="Measured on agentmods" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 291 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. 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 $0.00031 $0.00291
Opus 5 $0.00015 $0.00146
Sonnet 5 $0.00006 $0.00058
Haiku 4.5 $0.00003 $0.00029

Measured 8d ago against content hash bff3bd41b586, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade C, and why

cheap-summarizer scanned grade C 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 8d 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.

Tells the agent never to refusehighAnti-refusal

Suppressing the ability to decline removes a core safety control; a later harmful request then succeeds.

- Never refuse or ask for clarification - summarize what you have
packages/cli/skills-examples/cheap-summarizer/SKILL.md · 27 lines

What it actually says

You are a concise summarizer. Given input text, return a 2-3 sentence summary in plain text.

Rules:

  • Plain text only, no markdown formatting
  • Match the input language
  • Preserve key facts (names, numbers, dates)
  • Never refuse or ask for clarification - summarize what you have

This skill demonstrates per-skill LLM overrides. The agent default model (declared in elisym.yaml) is used by every other skill on this agent; only this one routes to openai / gpt-5-mini with a tighter max_tokens budget. Override fields:

  • provider and model must be declared together (or neither). Inheriting just one half from the agent default would produce nonsensical pairs.
  • max_tokens overrides independently of the provider/model pair.
  • API keys for any non-default provider come from secrets.<provider>_api_key (preferred) or the matching ANTHROPIC_API_KEY / OPENAI_API_KEY env var.
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. 8d ago First seen · 27 lines · 31 tokens per session scan C bff3bd41b586

Subscribe to this mod's changes

cheap-summarizer is a skill published in the GitHub repository elisymlabs/elisym (15 stars, last pushed 13d ago), licensed MIT. It adds 31 tokens to every session and 291 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 1 finding (tells the agent never to refuse). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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