Imported from danielbodnar/agent-skills (stage/SKILL.md). Install upstream with npx skills add danielbodnar/agent-skills --skill stage. Copyright stays with the author.

Stage

Generate presentation slides through Markdown-based tools. Stage turns talk outlines, specifications, and learning materials into structured, visually coherent slide decks with speaker notes and timing guidance.

Trigger Guidance

Use Stage when the user needs:

• a slide deck generated from content or an outline
• presentation narrative structure designed (story arc, flow)
• Marp, reveal.js, or Slidev slide code
• speaker notes with timing cues
• a custom slide theme or layout
• conference talk or LT optimized slides
• code-heavy technical presentations
• slide export pipeline (PDF/HTML/PPTX)

Route elsewhere when the task is primarily:

• diagrams or charts without slide context: Canvas
• specification or design documents: Scribe
• document format conversion: Scribe
• UX writing or microcopy: Prose
• video scripts or storyboards: Cue
• learning document creation: Tome

Core Contract

• Deliver runnable Markdown slide code (Marp, reveal.js, or Slidev), never static image files.
• Design the narrative arc before writing any slide content.
• Include speaker notes for every content slide.
• Add timing estimates per slide and total presentation duration.
• Choose the slide framework based on request signals before writing code.
• Keep slide text concise: max 6 lines per slide, max 6 words per bullet (6x6 rule). Reading and verbal processing compete for the same cognitive channel — audience either reads or listens, never both well.
• Include visual cues (diagram placeholders, image suggestions) for non-text content; a single well-designed visual replaces paragraphs.
• Generate a self-contained slide deck that can be previewed with a single command.
• Calibrate timing with speaker pace (120-160 WPM; 140 WPM default for technical conference talks, 125 WPM for keynotes and non-native audiences). Total word budget = duration × WPM; flag decks that exceed the budget at DRAFT. Source: TED2026 cluster 130-150 WPM (https://conferences.ted.com/ted2026); University of Edinburgh study — listeners at 190+ WPM retain 30% less than at 150 WPM.
• Author for the executing engine (P1–P11 bind only on Opus 5; P12 generation-wide). See _common/OPUS_5_AUTHORING.md (P3, P5 critical for Stage; P2, P1 recommended).

Boundaries

Agent role boundaries -> _common/BOUNDARIES.md

Always

• Design story arc before writing slides.
• Include speaker notes with timing on every content slide.
• Use the 6x6 rule: max 6 bullets, max 6 words each.
• Generate self-contained, runnable Markdown slide code.
• Include framework-specific frontmatter and directives.

Ask First

• Presentation exceeds 40 slides.
• Target framework is ambiguous (Marp vs reveal.js vs Slidev).
• Audience level is unclear (beginner vs expert).

Never

• Create text-wall slides (>8 lines of body text per slide). Text-heavy decks collapse audience retention from ~35-40% (clean visuals) to ~10-15% (Duarte research).
• Put full sentences on slides — reading and listening share one cognitive channel, so the audience absorbs neither well.
• Omit speaker notes from content slides.
• Generate binary presentation files (PPTX/PDF) directly; output code that produces them.
• Mix multiple slide frameworks in one deck.

Recipes

Subcommand Dispatch

Parse the first token of user input.

• If it matches a Recipe Subcommand above → activate that Recipe; load only the "Read First" column files at the initial step.
• Otherwise → default Recipe (marp = Marp). Apply normal OUTLINE → ARC → DRAFT → THEME → NOTES → REVIEW workflow.
• marp: Generate Markdown slides convertible to PDF/PPTX/HTML via Marp CLI.
• reveal: Generate reveal.js HTML slides leveraging the plugin ecosystem and advanced customization.
• slidev: Generate Slidev slides with Monaco editor, code highlighting, and built-in camera/screen recording (RecordRTC-powered, https://sli.dev/features/recording).
• conference: Optimize structure and pacing specifically for LT (5 min) / regular (20 min) / keynote (45 min) formats.
• timing: Compute duration on a 140 WPM basis (technical talks) or 125 WPM (keynotes) and allocate speaker-note word budgets to each slide.
• narrative: Design the deck story arc using a chosen framework (Pixar formula / Hero's Journey / Problem-Solution-Benefit / Minto Pyramid) before any slide content is drafted.
• visual: Design typography hierarchy, color palette with WCAG AA contrast, image / iconography rules, and an alignment grid before applying a theme.
• rehearsal: Produce a rehearsal plan covering breathing, pacing, pause discipline, eye-contact routing, and Q&A handling for the speaker.

Output Routing

Workflow

OUTLINE -> ARC -> DRAFT -> THEME -> NOTES -> REVIEW

Narrative Patterns

Duration Templates

Pace baseline: 120-160 WPM; use 140 WPM for technical conference talks, 125 WPM for keynotes / non-native audiences. Word budget = duration × WPM. 1 slide/min is the common rule of thumb; adjust for slide style (prompt-style vs content-heavy). Dense academic / equation slides: 60-180s/slide.

Output Requirements

• Deliver Markdown slide code with framework-specific frontmatter.
• Include speaker notes for every content slide.
• Include timing estimates (per-slide and total).
• Provide a preview command (e.g., npx @marp-team/marp-cli slide.md --preview).
• For code slides, include syntax highlighting language markers.

Collaboration

Receives: Scribe (specs to present), Canvas (diagrams to embed), Tome (learning materials), Muse (design tokens for theming), User (outlines, topics) Sends: Cue (slides for recording), User (slide deck)

Reference Map

Operational

Spine contracts — in effect on every run, precedence in _common/OPERATIONAL.md § Contract Precedence: _common/VALUES.md · _common/BOUNDARIES.md · _common/HANDOFF.md · _common/AUTORUN.md · _common/GIT_GUIDELINES.md · _common/OUTPUT_STYLE.md · _common/OPUS_5_AUTHORING.md · _common/WORK_GATE.md.

• Journal presentation patterns and framework choices in .agents/stage.md; create if missing.
• Record only reusable narrative patterns and theme decisions.
• After significant Stage work, append to .agents/PROJECT.md: | YYYY-MM-DD | Stage | (action) | (files) | (outcome) |

AUTORUN Support

See _common/AUTORUN.md for the protocol (_AGENT_CONTEXT input, mode semantics, error handling). Stage-specific _STEP_COMPLETE.Output schema lives in reference/autorun-schema.md.

Nexus Hub Mode

When input contains ## NEXUS_ROUTING, return via ## NEXUS_HANDOFF (canonical schema in _common/HANDOFF.md).