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glissando: Skill for Claude Code

.claude/skills/slides-theme/SKILL.md

slides-theme is a skill for Claude Code from concertoy/glissando. It costs 55 tokens per session (1,614 once invoked), scanned A, original, no licence file.

A skill for creating visual themes for Glissando slide decks from a written design description. A slide theme defines choices such as colors, fonts, and overall visual style.

In plain words
What is it for?
Creating or customizing a Glissando deck theme, including requests made with the /slides-theme command.
Why use it?
It helps turn a visual direction into a reusable presentation style.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

This is concertoy/glissando's own configuration. It tells Claude Code how to work on glissando itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything glissando configures →

not rated 5repo 6mo ago A scan 55 tokens no licence
View source ↗ concertoy/glissando
Reuse

Borrowing it

Nothing to install: this file belongs to concertoy/glissando. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/concertoy/glissando/main/.claude/skills/slides-theme/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/concertoy/glissando

Made for: Claude Code.

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 slides-theme

README.md
[![agentmods](https://agentmods.dev/badge/skills/concertoy/glissando/slides-theme/github.svg)](https://agentmods.dev/skills/concertoy/glissando/slides-theme)
Your own site
<a href="https://agentmods.dev/skills/concertoy/glissando/slides-theme"><img src="https://agentmods.dev/badge/skills/concertoy/glissando/slides-theme/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 slides-theme

Your own site · 80×15
<a href="https://agentmods.dev/skills/concertoy/glissando/slides-theme"><img src="https://agentmods.dev/badge/skills/concertoy/glissando/slides-theme.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,614 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 unknown 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 $0.00055 $0.01614
Opus 5.5 $0.00022 $0.00646
Sonnet 5.5 $0.00011 $0.00323
Haiku 4.5 $0.00006 $0.00161

Measured 2mo ago against content hash 4fd0095c42b4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

slides-theme 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.

.claude/skills/slides-theme/SKILL.md · 154 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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 · 154 lines · 55 tokens per session scan A 4fd0095c42b4

Subscribe to this mod's changes

slides-theme is a skill published in the GitHub repository concertoy/glissando (5 stars, last pushed 6mo ago), with no licence file. It adds 55 tokens to every session and 1,614 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 2026-08-31.

Creative and mediaDesign and UX
Related

slides-theme compared with skills from other repositories

slides-theme next to 6 skills from other repositories
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slides-themeconcertoy/glissandoSkill56mo agononeA55Claude Code
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html-ppt-taste-brutalistnexu-io/open-designSkill106kyesterdayApache-2.0A78Claude Code, Codex
visual-ralphYeachan-Heo/oh-my-codexSkill34k3d agoMITA52Codex
glance-canonical-layoutsandroid/skillsSkill10kyesterdayApache-2.0A56Claude Code
accessibilitymicrosoft/hve-coreSkill1.6kyesterdayMITA47Claude Code