fal-prompt

fal-prompt is a skill for Claude Code from mertagralii/fal.ai-butler. It costs 77 tokens per session (902 once invoked), scanned A, original, MIT.

A prompt-writing layer that converts plain-language visual instructions into the format expected by a selected image or video model. It reads the model’s schema and official examples instead of relying on fixed assumptions.

In plain words
What is it for?
Use it to create model-specific prompts, detect prompt formats, add anatomy guidance or negative prompts when supported, and tune seeds and other parameters.
Why use it?
Different models accept different fields and prompt styles, so writing one generic prompt can produce invalid or inconsistent results.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the fal-butler plugin — 8 skills, 3 commands, 7 agents, 3 MCP servers shipped together

Good fit Use it to create model-specific prompts, detect prompt formats, add anatomy guidance or negative prompts when supported, and tune seeds and other parameters.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mertagralii/fal.ai-butler/fal-prompt
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 mertagralii/fal.ai-butler --skill fal-prompt
Clone the repo
git clone --depth 1 https://github.com/mertagralii/fal.ai-butler

Made for: Claude Code.

Or install fal-butler, the plugin that ships this one along with the rest of its 8 skills, 3 commands, 7 agents, 3 MCP servers.

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 fal-prompt

README.md
[![agentmods](https://agentmods.dev/badge/skills/mertagralii/fal.ai-butler/fal-prompt/github.svg)](https://agentmods.dev/skills/mertagralii/fal.ai-butler/fal-prompt)
Your own site
<a href="https://agentmods.dev/skills/mertagralii/fal.ai-butler/fal-prompt"><img src="https://agentmods.dev/badge/skills/mertagralii/fal.ai-butler/fal-prompt/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 fal-prompt

Your own site · 80×15
<a href="https://agentmods.dev/skills/mertagralii/fal.ai-butler/fal-prompt"><img src="https://agentmods.dev/badge/skills/mertagralii/fal.ai-butler/fal-prompt.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 77 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 902 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 $0.00077 $0.00902
Opus 5 $0.00039 $0.00451
Sonnet 5 $0.00015 $0.00180
Haiku 4.5 $0.00008 $0.00090

Measured 11d ago against content hash 7d1013330b18, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

fal-prompt 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 11d 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.

skills/fal-prompt/SKILL.md · 68 lines

How it starts

The opening of the file, as written. The whole thing — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.

fal-prompt — prompt mühendisliği

Ekibin ürettiği reçeteler insan diliyle yazılmıştır. Senin işin bunları hedef modelin konuştuğu dile çevirmek — ve o dili ezberden bilmemek.

Temel ilke: lehçeyi keşfet, ezberleme

Model adı ve prompt biçimi hard-code edilmez. fal-compiler modeli seçtikten sonra sen o modelin şemasını ve resmi örnek prompt'larını cache'ten/MCP'den okursun, biçimi oradan çıkarırsın. Model değişince prompt biçimi de kendiliğinden değişir.

Referanslar

  • references/photorealism.mdanatomi kuralı, referans prompt kalıbı, fotogerçekçilik sözlüğü. Her video/görsel prompt'unda uygulanır
  • references/dialects.md — şemadan lehçe çıkarma yöntemi ve üç ana biçim
  • references/negative-prompts.md — negatif prompt, seed, parametre ayarı

Anatomi — pazarlık yok

Eksik uzuv, fazladan parmak, üç göz, gövdeye bağlanmayan el asla kabul edilmez. negative_prompt çoğu modelde yok; anatomi olumlu ve somut tarifle korunur:

both hands fully visible with five fingers each, natural finger articulation · left forearm entering frame from the left, shoulder visible at frame edge

Ayrıntı ve riskli kadraj listesi references/photorealism.md'de.

Girdin ve çıktın

Girdi: tüm reçeteler (fal-director, fal-dop, fal-animator, fal-audio, fal-editor)

  • seçilen modellerin şemaları

Çıktı: düğüm başına nihai input nesnesi — prompt metni, negatif prompt, parametreler. fal-compiler bunu doğrudan workflow.json'a yerleştirir.

Neden ayrı bir agent'sın

Model şemaları context açısından ağırdır. Üç ayrı agent'ın context'ine ayrı ayrı çekmek yerine hepsi sende toplanır — hem ucuz hem tutarlı. Bu yüzden tüm düğümlerin prompt'unu sen yazarsın, başka agent prompt yazmaz.

negative_prompt ve strength yaygın DEĞİLDİR

Sahada seçilen beş modelin hiçbirinde negative_prompt alanı yoktu; image-edit modelinde strength de yoktu. Yeni nesil modeller (Seedream v4, Kling O1 gibi) bu alanları sunmuyor.

Read the full file on GitHub · 68 lines

Files

What ships with it

3 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. 11d ago First seen · 68 lines · 77 tokens per session scan A 7d1013330b18

Subscribe to this mod's changes

fal-prompt is a skill published in the GitHub repository mertagralii/fal.ai-butler (0 stars, last pushed 1mo ago), licensed MIT. It adds 77 tokens to every session and 902 once invoked, about $0.0004 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 2026-08-31.

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