Revela

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Revela is an OpenCode plugin that turns your current agent into an HTML slide deck generator. Enable it for the current session, assign a presentation task, and the agent can research, structure, write, QA, and export a deck.

Live Demo — The AI Power Shift

What It Does

• injects a presentation-specific system prompt into your current agent with /revela enable
• builds that prompt from 3 layers: core skill, active domain, active design
• supports workspace document discovery, transparent text extraction for .pdf, .docx, .pptx, and .xlsx, and cached embedded-material extraction for those formats
• uses workspace DECKS.json as machine-readable deck memory, slide spec, and prewrite readiness state
• blocks premature writes to decks/*.html until the active deck is marked structurally ready
• runs automatic layout QA whenever the agent writes decks/*.html
• exports finished decks to PDF and editable PPTX
• switches designs and domains locally with zero LLM cost

Revela is a mode, not a separate agent.

Requirements

• OpenCode
• Bun runtime >= 1.0.0
• Google Chrome or Chromium for QA, PDF export, and PPTX export
• Git if you install from source

Install

Standard install

Add @cyber-dash-tech/revela to the plugin array in opencode.json:

{
  "$schema": "https://opencode.ai/config.json",
  "plugin": ["@cyber-dash-tech/revela"]
}

Restart OpenCode.

To install globally, add the same entry to ~/.config/opencode/opencode.json.

OpenCode v1.14.22+ respects .npmrc settings during plugin installs, so direct installation through the plugin field should be the default path.

Local wrapper install

Use this when direct plugin install is blocked in your environment, or when you want to run from a local checkout during development.

git clone https://github.com/cyber-dash-tech/revela
cd revela
npm install

Create ~/.config/opencode/plugins/revela.js:

export { default } from "/absolute/path/to/revela/index.ts";

If you use the local wrapper route, remove any @cyber-dash-tech/revela entry from opencode.json, otherwise OpenCode may still try Bun installation.

Quick Start

Enable Revela in the current session:

/revela enable

Initialize workspace deck memory when starting in a new project:

/revela init

Optionally switch design or domain:

/revela designs
/revela designs summit
/revela domains deeptech-investment

Then give the agent a deck task:

Create a 6-slide HTML deck on humanoid robotics supply chains. Cite the main market drivers, use the active design faithfully, and save the result to decks/humanoid-robotics.html.

Before the agent writes decks/humanoid-robotics.html, it must update DECKS.json through the revela-decks tool with the active deck, confirmed slide specs, layouts, components, and computed writeReadiness.status: ready. You can ask for an explicit readiness check at any time:

/revela review humanoid-robotics

Export when needed, either manually or by asking the agent to export:

/revela pdf decks/humanoid-robotics.html
/revela pptx decks/humanoid-robotics.html

Disable presentation mode when done:

/revela disable

Commands

/revela                          show status and help
/revela enable                   enable presentation mode for this session
/revela disable                  disable presentation mode

/revela init                     initialize or refresh workspace DECKS.json
/revela review [slug]            review active deck readiness before writing HTML
/revela remember <text>          save an explicit user/workflow preference

/revela designs                  list installed designs
/revela designs <name>           activate a design
/revela designs-new <name>       create a custom design with AI
/revela designs-edit <name>      refine an existing custom design with AI
/revela designs-preview [name]   open a design preview in the browser
/revela designs-add <source>     install a design from URL, local path, or github:user/repo
/revela designs-rm <name>        remove an installed design

/revela domains                  list installed domains
/revela domains <name>           activate a domain
/revela domains-add <source>     install a domain from URL, local path, or github:user/repo
/revela domains-rm <name>        remove an installed domain

/revela pdf <file>               export an HTML deck to PDF in the same directory
/revela pptx <file>              export an HTML deck to editable PPTX in the same directory

Most /revela commands run locally with zero LLM cost. /revela init, /revela review, /revela remember, /revela designs-new, and /revela designs-edit start AI-assisted workflows because they need to read or update project files.

How It Works

When Revela is enabled, it appends a generated prompt to the current agent's system prompt.

That prompt is built from 3 layers:

1. skill/SKILL.md - the core slide-generation workflow
2. active domain - domain-specific report structure and terminology
3. active design - visual system, layouts, components, and chart rules

Persistent preferences live in ~/.config/revela/config.json. The enabled or disabled state is session-level only.

DECKS.json Memory And Readiness Gate

Revela uses a workspace-root DECKS.json file for cross-session continuity and deck production control. It is intended for tools and the LLM, not manual editing.

It has two jobs:

• workspace memory: stable project context, source materials, explicit user preferences, deck history, and open questions
• active deck spec: current deck slug, output path, prerequisites, research plan, per-slide content, layouts, components, evidence, visuals, blockers, and write readiness

DECKS.json is the source of truth for workspace memory and deck readiness.

Create or refresh it with:

/revela init

Review the current deck state with:

/revela review [slug]

/revela review does not write the final HTML deck. It reads and updates DECKS.json through the revela-decks tool, checks what is missing, and sets writeReadiness.status to ready only when the deck is ready to generate.

Minimum readiness conditions:

• topic, audience, slide count, language, and visual style/design are decided
• source materials are identified or explicitly deemed unnecessary
• research need is assessed
• needed research findings have been read and reflected in the slide specs
• the user has confirmed the slide plan
• required design layouts and components have been fetched
• every slide has a title, layout, components, and structured content
• no blockers remain

The plugin enforces this before deck HTML is written. A write or patch touching decks/*.html is allowed only when the matching deck in DECKS.json passes the readiness gate. Direct writes or patches to DECKS.json are blocked; use revela-decks instead.

The gate checks:

• writeReadiness.status is ready
• writeReadiness.blockers is empty
• the deck outputPath exactly matches the target decks/*.html path
• all requiredInputs booleans are true
• slides.length matches slideCount when a slide count is set
• every slide has title, layout, components, and structured content
• every needed research axis is done, read, or skipped

If the gate blocks a write, Revela writes a marker file under .opencode/revela/blocked-writes/ instead of creating or overwriting the deck HTML. This makes the failure visible to the agent while keeping the real deck file untouched.

For apply_patch, Revela only checks whether the patch touches decks/*.html. If not ready, the whole patch is replaced with a blocked marker patch. The edit tool is not gated.

To remember long-term preferences, use:

/revela remember Prefer concise Chinese consulting-style decks.

Do not use remember for temporary checklist state; temporary state belongs in the active deck spec in DECKS.json.

Research And File Ingestion

When Revela is enabled, the agent can use:

• revela-workspace-scan to discover PDFs, Office files, CSVs, Markdown, and text files in the workspace
• the revela-research subagent for targeted web research
• revela-research-save to write structured findings into researches/<topic>/
• revela-research-images-list to extract structured image candidates from researches/<topic>/*.md
• revela-media-batch-save to batch-save selected research image leads into workspace assets
• revela-media-save to turn chosen local or remote images into reusable workspace assets under assets/<topic>/media/

Supported document extraction paths:

• @ reference or pasted file in chat
• read tool access while Revela is enabled

Supported extracted file types:

• .pdf
• .docx
• .pptx
• .xlsx

This extraction is transparent to the main agent.

Media Assets

Research findings can record image leads in ## Images, but those URLs are still just leads. Final slides should reference local workspace assets instead of remote image URLs.

Use revela-media-save when the agent wants to promote one chosen image into a formal project asset.

Current Stage 2 additions:

• revela-research-images-list parses ## Images sections into structured candidates
• the primary agent can review those candidates and select a subset to use
• revela-media-batch-save batch-saves the selected subset into assets/<topic>/media/
• this stage is still text-driven; it does not inspect image pixels or do visual recognition

Current Stage 1 behavior:

• accepts either sourcePath for a workspace-local image or sourceUrl for a remote image
• saves successful results into assets/<topic>/media/
• updates assets/<topic>/media-manifest.json
• records failed attempts with explicit statuses such as invalid-url and cannot-download
• lets the agent reference the returned local path directly in final HTML

Typical flow:

1. revela-research writes image leads into researches/<topic>/*.md
2. the primary agent calls revela-research-images-list and selects the images worth using
3. revela-media-batch-save or revela-media-save downloads or copies them into assets/<topic>/media/
4. the deck uses the returned local paths in <img src="...">

This keeps final decks stable, offline-friendly, and independent from expiring remote URLs.

Layout QA And Compliance

Every time the agent writes decks/*.html, Revela runs an automatic Puppeteer-based QA pass at 1920x1080. The report is returned immediately so the agent can fix problems before moving on.

Current QA dimensions:

Each slide must declare slide-qa="true" or slide-qa="false".

• use slide-qa="true" for content-heavy slides that should undergo full QA
• use slide-qa="false" for structural slides such as cover, TOC, quote, summary, or closing pages

You can also run QA manually with the revela-qa tool.

Designs And Domains

Use /revela designs and /revela domains to inspect what is installed in your environment.

Bundled domains in this repository:

Repository design examples:

Name	Description	Preview
summit	Editorial annual-report style for image-rich narrative slides and restrained business storytelling
monet	Light, serif-led visual system for quieter, art-directed business storytelling	DESIGN.md included in repo

Custom Designs

A custom design is a folder containing DESIGN.md. The folder name becomes the install target name unless the installer infers another name from the source.

You can ask Revela to create a new local design interactively:

/revela designs-new my-design

The agent will interview you for visual references, summarize a design brief for confirmation, then save DESIGN.md and preview.html into your local Revela designs directory. The default structural base is an internal neutral starter design, which is hidden from the normal design list. Use --base summit or --base monet only when you want to derive from those specific styles.

Refine an existing local design:

/revela designs-edit my-design

The agent will ask what to change, inspect the current design, confirm an edit brief, then overwrite the local design package through the controlled authoring tool.

Open a design preview in your browser:

/revela designs-preview my-design

Omit the name to preview the active design. If a design has no preview.html, Revela will report that no preview is available.

Recommended structure:

my-design/
├── DESIGN.md
└── preview.html        optional, but recommended for humans

DESIGN.md starts with frontmatter metadata:

---
name: my-design
description: Short description shown in /revela designs
author: you
version: 1.0.0
---

Minimal working example

This is the smallest useful DESIGN.md shape. It gives the model a clear visual system, one layout, and one reusable component.

---
name: alpine-brief
description: Minimal editorial design for strategy decks
author: you
version: 1.0.0
---

## Visual Style

Apply this visual style to every slide in the deck.

<!-- @design:foundation:start -->
### Color Palette

```css
:root {
  --bg: #f6f2ea;
  --surface: #fffdf8;
  --text-primary: #1c1a17;
  --text-secondary: #625b52;
  --accent: #8a6a45;
  --line: rgba(28, 26, 23, 0.14);
  --font-display: 'IBM Plex Sans Condensed', 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;
}

Typography

• Headings use --font-display
• Body copy uses --font-body
• Keep all sizing in fixed px for a 1920x1080 canvas

HTML Structure

• Every slide must use <section class="slide" slide-qa="true|false">
• Every slide must contain one .slide-canvas
• Keep all CSS in one <style> block and all JS in one <script> block

Composition Rules

• Use warm off-white backgrounds and restrained brown accents
• Prefer narrow text columns and generous whitespace
• Avoid glow, glassmorphism, neon gradients, and dashboard styling

Cover layout

• Centered title stack
• Small eyebrow at top
• One thin accent divider under the title

Two-column layout

• Left column for argument, right column for evidence
• Recommended split: 5 / 7
• Keep the left column under 520px for readable paragraphs

Stat card (.stat-card)

<div class="stat-card">
  <div class="stat-label">Revenue CAGR</div>
  <div class="stat-value">27%</div>
  <div class="stat-note">2024-2028E</div>
</div>

.stat-card {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.stat-label {
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.stat-value {
  margin-top: 10px;
  font-family: var(--font-display);
  font-size: 72px;
  line-height: 0.95;
}

.stat-note {
  margin-top: 8px;
  font-size: 16px;
  color: var(--text-secondary);
}

### Marker system

For larger designs, use the marker system so Revela can keep the always-on prompt compact and fetch
details only when needed:

```html
<!-- @design:foundation:start -->
Foundation rules
<!-- @design:foundation:end -->

<!-- @design:rules:start -->
Design rules
<!-- @design:rules:end -->

<!-- @design:layouts:start -->
<!-- @layout:cover:start qa=false -->
Layout details
<!-- @layout:cover:end -->
<!-- @design:layouts:end -->

<!-- @design:components:start -->
<!-- @component:card:start -->
Component details
<!-- @component:card:end -->
<!-- @design:components:end -->

<!-- @design:chart-rules:start -->
Chart rules
<!-- @design:chart-rules:end -->

Marker roles:

• @design:foundation: core tokens, HTML skeleton, CSS foundations, typography, spacing, page framing
• @design:rules: composition rules, dos and don'ts, art direction constraints, interaction rules
• @design:layouts: named layout recipes such as cover, toc, two-col, data-vis
• @design:components: reusable building blocks such as card, stat-card, quote-block
• @design:chart-rules: chart-specific rules that are only needed when a slide actually uses charts

Layout marker rules:

• Use stable, simple names such as cover, two-col, stats, timeline
• Add qa=true for dense content layouts and qa=false for intentionally sparse structural layouts
• Write each layout section as a recipe: purpose, recommended structure, preferred ratios, and known constraints

Component marker rules:

• Include at least one concrete HTML example
• Include the CSS class names the component depends on
• Prefer a small vocabulary of reusable class names over many one-off classes

Prompt injection behavior:

• always injected: @design:foundation, @design:rules, layout index, component index
• fetched on demand: individual @layout:*, individual @component:*, @design:chart-rules

If a design has no markers, Revela falls back to injecting the full DESIGN.md body.

Practical guidance

• Put the non-negotiable rules in foundation and rules; do not hide essential constraints only inside one layout
• Keep layout names semantically meaningful; they become the vocabulary the model sees in the layout index
• If your design defines a custom CSS class, document that class inside DESIGN.md; QA checks can flag classes not present in the design vocabulary
• Add preview.html when possible so humans can inspect the design before activating it

Install a custom design:

/revela designs-add github:your-org/your-design
/revela designs-add https://example.com/my-design.zip
/revela designs-add ./path/to/local/design-folder

Custom Domains

A custom domain is a folder containing INDUSTRY.md.

/revela domains-add github:your-org/your-domain

INDUSTRY.md is a legacy filename kept for compatibility.

Export

PDF export:

/revela pdf decks/my-deck.html

LLM tool equivalent: revela-pdf with { "file": "decks/my-deck.html" }.

Editable PPTX export:

/revela pptx decks/my-deck.html

LLM tool equivalent: revela-pptx with { "file": "decks/my-deck.html" }.

Both commands and tools write output beside the source HTML deck. Use the tools when you want the agent to run export as part of the deck workflow instead of asking the user to invoke /revela pdf or /revela pptx manually.

Development

bun test
bun run typecheck

Enable verbose logs with:

REVELA_DEBUG=1 opencode

License

MIT - see LICENSE