gamma

gamma is a skill for Claude Code, Codex from S3YED/appie-kit. It costs 37 tokens per session (809 once invoked), scanned A, original, MIT.

A workflow for creating presentations, documents, social posts, and web pages through Gamma's AI service.

In plain words
What is it for?
It is for generating or condensing text into presentations, documents, social content, and web pages.
Why use it?
It removes the need to manually send requests, check generation status, and retrieve the resulting Gamma link.

Skill for Claude CodeCodex

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

Good fit It is for generating or condensing text into presentations, documents, social content, and web pages.

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Install with agentmods
npx agentmods add skills/s3yed/appie-kit/gamma
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 S3YED/appie-kit --skill gamma
Clone the repo
git clone --depth 1 https://github.com/S3YED/appie-kit

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 gamma

README.md
[![agentmods](https://agentmods.dev/badge/skills/s3yed/appie-kit/gamma/github.svg)](https://agentmods.dev/skills/s3yed/appie-kit/gamma)
Your own site
<a href="https://agentmods.dev/skills/s3yed/appie-kit/gamma"><img src="https://agentmods.dev/badge/skills/s3yed/appie-kit/gamma/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 gamma

Your own site · 80×15
<a href="https://agentmods.dev/skills/s3yed/appie-kit/gamma"><img src="https://agentmods.dev/badge/skills/s3yed/appie-kit/gamma.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 809 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 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 $0.00037 $0.00809
Opus 5 $0.00018 $0.00404
Sonnet 5 $0.00007 $0.00162
Haiku 4.5 $0.00004 $0.00081

Measured 7d ago against content hash 672bcc194782, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

gamma scanned grade A 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 7d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -X POST https://public-api.gamma.app/v1.0/generations \
skills/content/gamma/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.

Gamma API Skill

Create presentations and documents programmatically via Gamma's API.

Setup

  1. Get API key from https://developers.gamma.app
  2. Store in environment: export GAMMA_API_KEY=sk-gamma-xxx Or add to TOOLS.md: Gamma API Key: sk-gamma-xxx

Authentication

Base URL: https://public-api.gamma.app/v1.0
Header: X-API-KEY: <your-api-key>

Generate Content

curl -X POST https://public-api.gamma.app/v1.0/generations \
  -H "Content-Type: application/json" \
  -H "X-API-KEY: $GAMMA_API_KEY" \
  -d '{
    "inputText": "Your content here",
    "textMode": "generate|condense|preserve",
    "format": "presentation|document|social|webpage"
  }'

Response: {"generationId": "xxx"}

Check Status

curl https://public-api.gamma.app/v1.0/generations/<generationId> \
  -H "X-API-KEY: $GAMMA_API_KEY"

Response (completed): {"status": "completed", "gammaUrl": "https://gamma.app/docs/xxx", "credits": {...}}

Poll every 10-20s until status: "completed".

Key Parameters

Parameter Values Notes
textMode generate, condense, preserve generate=expand, condense=summarize, preserve=keep exact
format presentation, document, social, webpage Output type
numCards 1-60 (Pro), 1-75 (Ultra) Number of slides/cards
cardSplit auto, inputTextBreaks Use \n---\n in inputText for manual breaks
exportAs pdf, pptx Optional export format

Optional Parameters

{
  "additionalInstructions": "Make titles catchy",
  "imageOptions": {
    "source": "aiGenerated|unsplash|giphy|webAllImages|noImages",
    "model": "imagen-4-pro|flux-1-pro",
    "style": "photorealistic, modern"
  },
  "textOptions": {
    "amount": "brief|medium|detailed|extensive",
    "tone": "professional, inspiring",
    "audience": "tech professionals",
    "language": "en"
  },
  "cardOptions": {
    "dimensions": "fluid|16x9|4x3|1x1|4x5|9x16"
  }
}

Read the full file on GitHub · 94 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 7d ago First seen · 94 lines · 37 tokens per session scan A 672bcc194782

Subscribe to this mod's changes

gamma is a skill published in the GitHub repository S3YED/appie-kit (9 stars, last pushed 15d ago), licensed MIT. It adds 37 tokens to every session and 809 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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