slides-deck

slides-deck is a skill for Claude Code, Codex from tmj-90/gaffer. It costs 67 tokens per session (1,034 once invoked), scanned A, original, Apache-2.0.

A guide for turning ideas or documents into presentation slides, with one clear idea and purpose per slide.

In plain words
What is it for?
Use it to create pitch decks, product demos, reports, talks, design reviews, or slides from Markdown.
Why use it?
It helps avoid crowded slides that try to explain too many things at once.

Skill for Claude CodeCodex

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

Good fit Use it to create pitch decks, product demos, reports, talks, design reviews, or slides from Markdown.

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Install with agentmods
npx agentmods add skills/tmj-90/gaffer/slides-deck
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 tmj-90/gaffer --skill slides-deck
Clone the repo
git clone --depth 1 https://github.com/tmj-90/gaffer

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 slides-deck

README.md
[![agentmods](https://agentmods.dev/badge/skills/tmj-90/gaffer/slides-deck/github.svg)](https://agentmods.dev/skills/tmj-90/gaffer/slides-deck)
Your own site
<a href="https://agentmods.dev/skills/tmj-90/gaffer/slides-deck"><img src="https://agentmods.dev/badge/skills/tmj-90/gaffer/slides-deck/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-deck

Your own site · 80×15
<a href="https://agentmods.dev/skills/tmj-90/gaffer/slides-deck"><img src="https://agentmods.dev/badge/skills/tmj-90/gaffer/slides-deck.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 67 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,034 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 $0.00067 $0.01034
Opus 5 $0.00034 $0.00517
Sonnet 5 $0.00013 $0.00207
Haiku 4.5 $0.00007 $0.00103

Measured 6d ago against content hash e967d00d7b99, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

slides-deck 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 6d 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.

runner/skills/slides-deck/SKILL.md · 94 lines

How it starts

The opening of the file, as written. The whole thing — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Convert ideas into structured, deliverable slide decks

Slides are not documents. One idea per slide. The constraint is a feature, not a bug.

Deck archetypes (determine before writing)

Archetype Purpose Structure
Pitch deck Fundraising or executive buy-in Problem → Market → Solution → Traction → Ask
Product demo Show a feature working Context → Demo flow → Outcome → Next steps
Report / update Status, data, retrospective Summary → Data → Insights → Actions
Talk / keynote Conference or all-hands Hook → Thesis → 3 points → Call to action
Design review Critique a design Objective → Current state → Proposal → Trade-offs

Slide anatomy

Every slide has one job. Ask: "What should the viewer believe or do after this slide?" If the answer is two things, split the slide.

TITLE     — the claim (not the topic). "Revenue grew 43%" not "Q2 Revenue"
BODY      — the evidence for the claim (one paragraph, one chart, or one list)
TAKEAWAY  — optional; the one-sentence so-what if it isn't obvious

Output formats

Format Use case
Markdown slides Marp or Slidev; deliverable as .md; in version control
Reveal.js HTML Self-contained; shareable as a URL; no install
Structured outline For the user to paste into their own tool (Google Slides, Keynote, PowerPoint)

Default: Markdown slides (Marp format) unless the user specifies otherwise.

Marp frontmatter (standard)

---
marp: true
theme: default
paginate: true
footer: "Company · Deck Title · Month Year"
---

Slides separated by ---. Speaker notes after <!-- on a blank line below the slide.

Pitch deck structure (12 slides)

  1. Title — company name + one-line value prop + date
  2. Problem — the specific pain; quantify it
  3. Solution — what you do; one sentence
  4. Demo / Product — screenshot or flow; show don't tell
  5. Market — TAM/SAM/SOM or specific segment size with source
  6. Business model — how you make money; unit economics if available
  7. Traction — the best metric you have; growth rate preferred
  8. Competition — honest 2×2 or table; say why you win
  9. Team — relevant prior experience only; no fluff
  10. Roadmap — 12-month milestones; tied to the ask
  11. Financials — 3-year projection; key assumptions
  12. Ask — specific amount; use of funds; timeline

Read the full file on GitHub · 94 lines

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. 6d ago First seen · 94 lines · 67 tokens per session scan A e967d00d7b99

Subscribe to this mod's changes

slides-deck is a skill published in the GitHub repository tmj-90/gaffer (2 stars, last pushed 2d ago), licensed Apache-2.0. It adds 67 tokens to every session and 1,034 once invoked, about $0.0003 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 2026-09-03.

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