summarize

summarize is a skill for Claude Code from saffron-health/libretto. It costs 30 tokens per session (197 once invoked), scanned A, original, MIT.

A format and process for turning a software specification or set of code changes into a short Slack summary. Slack is a team messaging tool used for sharing project updates.

In plain words
What is it for?
Use it to summarize a specification or current Git changes into problem, solution, and bullet-point sections for team communication.
Why use it?
It helps teammates understand the problem and solution without reading the full specification or change set. The fixed format keeps updates concise and easy to scan.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: installed under .agents/ (shared by several agents).

Part of the libretto plugin — 24 skills shipped together

Good fit Use it to summarize a specification or current Git changes into problem, solution, and bullet-point sections for team communication.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/saffron-health/libretto/summarize
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 saffron-health/libretto --skill summarize
Clone the repo
git clone --depth 1 https://github.com/saffron-health/libretto

Made for: Claude Code.

Or install libretto, the plugin that ships this one along with the rest of its 24 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 summarize

README.md
[![agentmods](https://agentmods.dev/badge/skills/saffron-health/libretto/summarize/github.svg)](https://agentmods.dev/skills/saffron-health/libretto/summarize)
Your own site
<a href="https://agentmods.dev/skills/saffron-health/libretto/summarize"><img src="https://agentmods.dev/badge/skills/saffron-health/libretto/summarize/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 summarize

Your own site · 80×15
<a href="https://agentmods.dev/skills/saffron-health/libretto/summarize"><img src="https://agentmods.dev/badge/skills/saffron-health/libretto/summarize.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 197 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00030 $0.00197
Opus 5.5 $0.00012 $0.00079
Sonnet 5.5 $0.00006 $0.00039
Haiku 4.5 $0.00003 $0.00020

Measured 2mo ago against content hash ebde508a7b2a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

summarize 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 2mo 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

  • summarize — 100% identical, 0 lines differ
.agents/skills/summarize/SKILL.md · 31 lines

What it actually says

Summarize the given spec or current changes into a format suitable for sharing on Slack.

Read the spec file or use git diff to understand the current changes if no spec is provided.

Output the summary in this exact format:

**Problem:** Right now, we ...
- <bullet point explaining issue>
- <bullet point explaining issue>
- ...

**Solution:** <one sentence explaining the solution>
- <bullet point explaining change>
- <bullet point explaining change>
- ...

Guidelines:

  • Write concisely using active voice
  • Focus on what matters to teammates who have no context
  • Do not reference "this spec" or "this PR" - explain the problem and solution directly
  • Keep bullet points short and scannable
  • Use technical terms appropriately but avoid jargon
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. 2mo ago First seen · 31 lines · 30 tokens per session scan A ebde508a7b2a

Subscribe to this mod's changes

summarize is a skill published in the GitHub repository saffron-health/libretto (906 stars, last pushed 2mo ago), licensed MIT. It adds 30 tokens to every session and 197 once invoked, about $0.0001 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 2026-08-30.

Related

Other skills, from other repositories

robotgo

Use when automating desktop GUI in Go — robotgo.Move/Click/KeyTap, CaptureImg vs CaptureScreen, bitmap.Find template matching, gohook global hotkeys, gcv OpenCV matching, clipboard and window control. RobotGo v1.3.7: cross-platform Go desktop automation for macOS/Windows/Linux. Also for black screenshots or silently…

znlgis/opengis-skills · 115 tokens

uipath-tasks

Generates UiPath Tasks workflows — Form Tasks (CreateFormTask, WaitForFormTaskAndResume, GetFormTasks) with form.io schemas and FormData bindings, External Tasks (CreateExternalTask, WaitForExternalTaskAndResume) for system-in-the-loop patterns, and Task Management (CompleteTask, AssignTasks) for programmatic task…

marcelocruzrpa/uipath-ai-skills · 138 tokens

orbit-notion

Open Orbit briefing skill — selected by the Orbit pipeline when Notion is the user's only connected connector, or when the user explicitly scopes their daily digest to Notion. Pulls the past 24 hours of document edits, comments, mentions, and database row changes from the user's authenticated Notion connection and…

nexu-io/open-design · 117 tokens

agentmail

Use your assigned AgentMail inbox to read email tasks, explicitly send or reply, and check delivery. Provided automatically by your inbox assignment.

paperclipai/paperclip · 30 tokens

Cortex

LifeOS memory, prior-session recall, and learning capture. USE WHEN capture this learning, document this learning, what did we learn recently, recent learnings, cortex, knowledge, knowledge base, search knowledge, what do we know about, archive, harvest, knowledge status, develop note, add to knowledge, add a people…

danielmiessler/LifeOS · 184 tokens

rowboat-spaces

How to work as a member of Rowboat Spaces, the team chat where people and agents work together. Load it once per session, before acting on any request that reaches you from Rowboat; it covers your setup, mentions and hand-offs, the tools, and files.

rowboatlabs/rowboat · 60 tokens