/signal-green

name: signal-green-pptx
description: "Reusable fixed-style PPTX generation skill for the Signal Green Atlas visual brand — fluorescent green (#0CDA76) dominant background, black (#000000) typography and rules, black-and-white imagery only, bold avant-garde editorial atlas aesthetic, oversized uppercase grotesk headlines, strict two-column information grids, sharp rectangular photo windows, black circular bullets, deliberate asymmetry, widescreen 16:9 editable .pptx output. Use this skill whenever the user mentions Signal Green Atlas, asks for a fluorescent-green editorial presentation, wants an avant-garde atlas or guidebook-style deck, requests a bold black-and-green presentation, or needs a deck using strict information grids and monochrome imagery. Also trigger for 'signal green', 'signal green atlas', 'fluorescent green deck', 'atlas pptx', 'black and green presentation', 'avant-garde atlas deck', 'guidebook style slides', or 'editorial atlas presentation'."

Signal Green Atlas PPTX Skill

A reusable fixed-style PowerPoint generation skill. It builds on the `pptx` skill's technical capabilities while locking in the Signal Green Atlas visual identity: bold, avant-garde, editorial — a fluorescent-green guidebook system with strict typographic grids, sharp rectangular image windows, black-and-white photography, and deliberate asymmetric composition.

**Core principle — style fidelity over content volume.** The atlas visual language originates in European editorial guides and experimental cartography, but it is a design system, not a fixed travel subject. Translate any topic into this visual language without forcing it to become a travel itinerary. The deck must feel bold, sharp, fluorescent, and editorial — never a soft brochure, text-heavy report, or generic corporate presentation.

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Step 1: Gather Inputs (Ask First — Max 3 Questions)

Do **not** start generating immediately. Use the `AskUserQuestion` tool to present all questions in a **single** call. Only ask about what the user hasn't already provided.

**Question 1 — Topic** (skip if already provided):

• header: "Topic"
• question: "What is the presentation topic or title?"
• options: 2–3 relevant examples plus allow Other

**Question 2 — Slide count** (skip if already specified):

• header: "Slides"
• question: "How many slides should the deck include? (9 recommended)"
• options: `6 slides`, `9 slides (Recommended)`, `12 slides`, `15 slides`

**Question 3 — Visual assets**:

• header: "Images"
• question: "How should visual assets be provided?"
• options:
• `Use uploaded images` — Insert images I provide
• `Generate with gpt-image-2` — AI creates black-and-white editorial imagery
• `Combine both` — Mix uploaded and AI-generated assets

Infer the audience, narrative structure, sections, labels, and supporting metadata from the user's topic. Do not ask additional questions unless essential information is missing and the presentation cannot be completed without it.

Once you have the three answers, proceed directly to generation.

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Step 2: Translate the Topic into Signal Green Atlas Language

Before writing any slide copy, decide how to translate the user's topic into the atlas frame. The visual system originated in route guides and cartographic atlases, but any subject can be reframed as a structured atlas — sections become stops, stages, coordinates, chapters, signals, milestones, sequences, or reference points.

| User provides | Signal Green Atlas treatment | |---|---| | Product or brand | Atlas of the product ecosystem — sections, versions, features as stops | | Strategy or business topic | Strategic atlas — milestones, phases, decision coordinates | | Research or educational topic | Reference atlas — chapters, findings as entries, index overview | | Process or workflow | Sequential route — numbered stages, process stops, comparison grid | | Event or conference | Event atlas — session index, schedule grid, speaker entries | | Any other subject | Reframe as a bold structured guide — sections, reference points, or field entries |

Preserve the user's topic, terminology, facts, and intended meaning. Do not invent locations, routes, dates, statistics, people, companies, products, claims, or research results.

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Step 3: Generate Images (if requested)

Read the `generate-image` skill at `/home/node/.claude/skills/generate-image/SKILL.md` for the exact API call pattern. Use `openai/gpt-image-2` with `response_format: "b64_json"`.

How many images to generate

• 9-slide deck → 4–5 images
• 12–15 slide deck → 5–6 images
• 6 slides → 3–4 images

Cover image rule

The cover must include one large topic-relevant black-and-white hero image. Generate or use an uploaded image for this first.

Signal Green Atlas image prompt formula

Generated images are black-and-white editorial assets — not slide screenshots and never images with embedded text.

Black-and-white high-contrast editorial photograph or illustration. [Scene descriptor: sharp architectural lines / industrial surface / structural geometry / stark landscape / editorial still-life / abstract urban form]. Slightly grainy film quality, strong geometric composition, clear primary subject, adequate negative space. [Optional: controlled motion blur]. No readable text, no logos, no brand marks, no watermarks, no recognizable real people, no presentation titles, no charts, no interface elements. Suitable for large rectangular hero window or full-slide monochrome plate.

For non-architectural topics, adapt the scene:

Black-and-white high-contrast editorial [image type: scientific instrument / object arrangement / abstract form relevant to topic]. Same film quality and no-text rules. Strong geometric structure, sharp edges, negative space.

Save each image to `/tmp/signal-green-img-N.png`.

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Step 4: Build the PPTX

Read the `pptx` skill at `/home/node/.claude/skills/pptx/SKILL.md` and its `pptxgenjs.md` reference for the full