tldr

tldr is a skill for Claude Code from lttr/claude-marketplace. It costs 45 tokens per session (133 once invoked), scanned A, original, MIT.

A writing skill that turns the immediately previous response into a very short summary when asked for a TL;DR, a shorter version, or a summary.

In plain words
What is it for?
Use it to condense the last answer into no more than three short sentences or bullet points.
Why use it?
It removes extra detail when the reader needs only the main point.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

Part of the writing plugin — 4 skills shipped together

Good fit Use it to condense the last answer into no more than three short sentences or bullet points.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/lttr/claude-marketplace/tldr
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 lttr/claude-marketplace --skill tldr
Clone the repo
git clone --depth 1 https://github.com/lttr/claude-marketplace

Made for: Claude Code.

Or install writing, the plugin that ships this one along with the rest of its 4 skills.

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 tldr

README.md
[![agentmods](https://agentmods.dev/badge/skills/lttr/claude-marketplace/tldr/github.svg)](https://agentmods.dev/skills/lttr/claude-marketplace/tldr)
Your own site
<a href="https://agentmods.dev/skills/lttr/claude-marketplace/tldr"><img src="https://agentmods.dev/badge/skills/lttr/claude-marketplace/tldr/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 tldr

Your own site · 80×15
<a href="https://agentmods.dev/skills/lttr/claude-marketplace/tldr"><img src="https://agentmods.dev/badge/skills/lttr/claude-marketplace/tldr.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 133 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 $0.00045 $0.00133
Opus 5.5 $0.00018 $0.00053
Sonnet 5.5 $0.00009 $0.00027
Haiku 4.5 $0.00005 $0.00013

Measured 1mo ago against content hash cfcbabfa4c7f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

tldr 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 1mo 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.

plugins/writing/skills/tldr/SKILL.md · 16 lines

What it actually says

TL;DR - distill the last answer

Rewrite your immediately preceding response as the leanest version that still conveys the idea. Nothing more, nothing less.

Use short sentences. Do not output more than 3 sentences or bullet points.

Omitting some references or details is fine.

Use simple language. Omit em dashes and semicolons.

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. 1mo ago First seen · 16 lines · 45 tokens per session scan A cfcbabfa4c7f

Subscribe to this mod's changes

tldr is a skill published in the GitHub repository lttr/claude-marketplace (2 stars, last pushed 14d ago), licensed MIT. It adds 45 tokens to every session and 133 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-09-15.

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