Definition
open-kimi-ppt is a presentation creation and export skill built around Moonshot AI's PPTD format and an element-level PptxGenJS writer. It defines a YAML-format intermediate DSL (.pptd) that abstracts OOXML and keeps each page self-contained.
Unless the user explicitly opts out, always produce both:
- the complete editable PPTD project directory (
.pptd+pages/+media/and other referenced dependencies); - the matching
.pptx, with native editable text/shape/line/image objects and fade slide transitions applied by default.
Existing PPTX files may also be converted into PPTD for editing, after which both outputs are delivered again.
The pptd format
The .pptd format is a simplified abstraction layer over OOXML that follows basic YAML syntax. This abstraction preserves the core content of OOXML (theme, page layout, element positions and definitions, etc.) while removing complex nesting logic such as Masters; every page is self-contained — what you see is what you get. Read reference/pptd.md for the DSL and reference/editable-pptx.md for editable-export coverage and gates.
PPT production workflow
step0. Check local prerequisites
Default delivery includes editable PPTX export and optional npx open-kimi-ppt-skill serve. Before generating, verify:
- Node.js 18+: run
node --version. If unavailable, check the Codex bundled workspace runtime. Stop editable export only after both locations fail; report the exact blocker. - npm / npx: run
npm --version.export_pptx.pyreuses bundled PptxGenJS when available and otherwise installs pinned dependencies under~/.cache/open-kimi-ppt-editable. - python3: run
python3 --version(on Windows,pythonmay be the correct command). Needed forexport_pptx.py/export_images.py. - Chrome / Chromium / Edge: needed for image QA and the explicit visual-browser compatibility path. Native editable export runs without a browser.
- Soft dependencies are handled by the scripts. Network is needed only for the first dependency install or when the deck references remote media/fonts.
step1. Read the context thoroughly
Read all files uploaded by the user, the provided URLs, and the pptd format guide reference/pptd.md to fully understand the user's requirements.
step2. Understand the user's requirements
Understand the user's requirements based on the context:
- First determine the purpose of the request
- Create a PPT: create a new presentation (from scratch, or from an existing pptx template)
- Edit a PPT: edit the user's uploaded PPT (local modifications, single-page beautification, etc.)
- Replicate a PPT: replicate a presentation from a non-pptx format (images, PDF, etc.) into pptd format
- Then determine the design direction
- Self-directed design: no preference, or only simple style constraints given; you need to fill in or create the design
- Design system: a preset design system from the skill (
reference/design_system/) is specified, or the user provides a complete and detailed design scheme covering all color, font, layout, and component specifications - Use a template: a template is provided and must be used
- Style transfer: a style reference source is provided (images, web pages, etc.)
- Then determine the input type
- Topic only: only a PPT topic direction or content requirements for the presentation are given, with no concrete content
- Full document: the user provides a complete document (paper, research report, press release, etc.)
- Outline: the user provides a page-by-page outline, speech script, or similar content
- When the "user input type" is [Full document] or [Outline] and it is not specified whether expansion is allowed: since a page-by-page outline, speech script, or user document can hardly support the full content of a presentation, prefer using search to expand with more relevant material, cases, etc., unless the user explicitly says not to expand
- Finally determine the exact page count
- If the user requests a specific page count, the user's requirement takes priority
- Page-by-page outline/script provided: match the number of pages in the outline/script
- When a complete and relatively structured document is provided: ask the user how much document content one page should cover, and give an estimated total page count; when only a topic is provided: suggest a recommended page count and confirm with the user
Clarification and follow-up questions
When any of the following situations arise, resolve them by asking the user (use the agent's ask/clarification tool when available)
- Requirements are ambiguous
- The user's intent is unclear or hard to understand
- The files/URLs provided by the user are inaccessible
- Conflicting intents
- The user's intents contradict each other. For example:
- A design system is selected while also requesting a style that is completely inconsistent with that design system (e.g., using a McKinsey style while requiring large areas of whitespace on pages) / using a template / referencing an image style
- Requesting both "make 10 pages" and "deliver 30+ pages of output"
- Unable to determine the user's requirements on your own
- When the purpose, design direction, input type, page count, etc. are hard to determine by yourself
step3. Generate the presentation based on the user's requirements
Before generating, first read reference/pptd.md to understand the pptd format definition and constraints.
Replicating a PPT
- Analyze the images to estimate element positions, fonts and sizes, etc., and replicate 1:1 as closely as possible.
- For parts that are difficult to make out, use methods such as grid lines and close-up views to improve understanding.
- Replicate simple content in the image with elements; icons may be approximated with icons provided by Font Awesome. For content that cannot be approximated with icons or shapes, such as photos and avatars, use tools such as bash or python to crop and split the original image, then add the resulting image elements to the presentation
Editing a PPT
- Convert the user's uploaded pptx file to .pptd format
- Review the converted pages (structure and key visual details). Read a few key pages individually afterwards.
- Locate the pages to edit, and be careful not to affect parts outside the intended scope.
Conversion from pptx to pptd is not perfectly lossless. If the user later reports format errors, garbled content, etc., compare against the original pptx and repair the pptd with reference to the comparison
Generating a PPT
When generating a PPT, adopt different production approaches for different user [design directions]
Self-directed design
- Read the design guide
reference/slides_categories.md, and read the scenario document corresponding to the user's query - Produce the presentation based on the above
Generating content in other formats
- When the user explicitly asks for an infographic, poster, or a highly visual single-page design, read
reference/general-poster.mdand implement it as a single-page or few-page editable PPTD; when the user only asks for an image, still build it with PPTD first, then output the image via screenshot or rendering. Do not load this reference file for ordinary PPT requests.
Design system
- Read the general constraints section of the
reference/slides_categories.mdguide, and read the scenario document corresponding to the user's query as the design foundation - Read the specified design system as the presentation style: either the user-provided design scheme, or the matching preset under
reference/design_system/(search by name / path the user specified; prefer the folder'sdesign.mdwhen present). It is strictly forbidden to reference or mix in other design styles - Produce the presentation with reference to the above
- Do not auto-pick a preset during self-directed design; only use
reference/design_system/when a preset is explicitly specified
Using a template
- Convert the user's uploaded pptx file into pptd form
- Review the converted pages to understand the template's visual style (color scheme, font style, element characteristics, layout characteristics, content density, etc.)
- Identify page types; focus on reading special pages such as the cover, summary pages, and section dividers (single-page screenshots, .page files), extracting their page layouts, content structures, reusable components (icons, shapes, smartart, reusable body layout schemes, etc.), and element styles (e.g., whitespace/line/card separators, square/rounded corners, etc.)
- Produce the presentation using the template
Style transfer
- Analyze the reference file's visual style (color scheme, font style, element characteristics, layout characteristics, content density, etc.), page layouts, content structures, reusable components (icons, shapes, smartart, reusable body layout schemes, etc.), and element styles (e.g., whitespace/line/card separators, square/rounded corners, etc.).
- If the user provides a style reference URL, do not only read the text content; refer to and learn from the page's visual effect more to help understand the style
- Produce the presentation using the reference file's style characteristics. You are encouraged to reuse illustrations, fonts, font-size hierarchies, elements, etc. from the original pdf/url
Images and Visual Materials
- Images are an effective way to enrich a presentation's visual impact. Appropriate images should be used not only on covers and section dividers, but also on body pages to enrich the page, aid understanding, or support decision-making
- Images are used to show concrete subjects, explain content, provide evidence, or establish a scene. Logos, icons, decorative textures, and very small thumbnails do not count as substantive imagery.
- When a page involves products, people, places, buildings, events, cases, interfaces, experimental subjects, or spatial environments, prioritize corresponding real images or screenshots. If real images and screenshots cannot be obtained, generated images may be used instead.
- Image priority: images provided by the user; images from official websites, official reports, and credible sources; searched images that are directly relevant to the content; images generated for conceptual expression or atmosphere.
- After deciding which images are needed, complete image search, generation, and downloading in a batch before designing pages around their proportions. Save images in the
mediadirectory, keep them clear, and never stretch or distort them. - Analytical, technical, and academic PPTs should use corresponding evidence images when products, experiments, interfaces, cases, or on-site materials are available. Do not reduce every page to text, color blocks, and shapes.
- Do not add irrelevant images merely to meet a quantity target. Every image must be directly relevant to the page's conclusion or communication goal.
Content Guidelines
- Language style: unless the user explicitly requests otherwise, strictly avoid overly abstract expressions and uncommon metaphors
- Do not overuse metaphors, slogans, or abstract jargon such as distribution, an N-step argument, everything at a glance, a closed loop, hands-on practice, verification, deconstruction, second-class citizens, poison pills, or wall clocks
- Do not use common AI phrasing such as “not X, but Y,” “X is Y,” “why / based on what / how,” “key takeaway,” or “N battlefronts / paths”
- Do not use overly colloquial expressions such as “where should the ammunition go,” “the Nth thing,” “can't pick the right one,” or “cannot be used as X”
step4. PPT validation
- Validate the generated pptd against the format definition in
reference/pptd.md(required fields, types, bounds, theme tokens, resource paths, etc.) and repair issues over multiple rounds - Visual review with exported page images — required before PPTX export when the model supports image input (multimodal):
Run
scripts/export_images.py. It loads the deck into the local neo-ppt editor (same offline mirror asserve), chooses 导出 → 图片, downloads the images ZIP, unzips it, and stitches all pages into one overview image. Needs Chromium viaagent-browser, but does not callwww.kimi.com.python3 ~/.agents/skills/open-kimi-ppt/scripts/export_images.py \ /abs/path/project/deck.pptd \ --output /abs/path/project/.qa-imagesThe script prints a JSON summary mapping each stitched label (
P1…Pn, 1-based page order) to its.pagefile.Read the stitched overview image (
.qa-images/overview.jpg) and check every page against this list:- 图片是否清晰、不变形(无拉伸、压缩、模糊)
- 文字是否压在关键画面(人脸、产品主体、Logo 等)上
- 元素坐标是否超出页面边界
- 边界与配色对比是否足够(文字与背景、相邻色块之间)
- 排版是否统一(对齐、间距、字号层级、页边距)
- 文字是否可能溢出文本框(文本过长、行距过密、字号过大)
- 内容是否被上层元素遮挡
For any suspicious page, read its full-resolution image (
.qa-images/pages/<n>.jpeg) to confirm the problem before editing.Fix issues in the corresponding
.pagefile, then re-runscripts/export_images.py --forceand review the new overview; repeat until every page passes.Do not export the PPTX until the visual review passes.
.qa-images/is an intermediate QA artifact and may be deleted after delivery.
- When the model cannot read images, fall back to a structural review of the generated pages (bounds, overflow-prone long text, contrast, hierarchy, layout density) over multiple rounds, and state that image-based visual QA was skipped.
- Run the default editable exporter. It creates slide 1 in a temporary PPTX, verifies every source element against OOXML object names and types, then generates the complete deck. Stop on unsupported features or missing objects; keep the PPTD source unchanged.
- For high-risk decks, open the one-slide gate file or final PPTX in PowerPoint/WPS and confirm that a title, a body text box, a shape/line, and an image can be selected independently. State which application was used.
step5. PPT output and delivery
Always produce a self-contained project directory. Keep the
.pptdmanifest and every referenced dependency together; never deliver a standalone manifest without its referenced files. Use this layout unless an existing project already has a valid equivalent structure:deck/ deck.pptd pages/ *.page media/ * # when the deck has local media deck.pptx # generated by defaultGenerate the
.pptxby default after PPTD validation, even when the user only asks to create or edit a presentation. Skip PPTX export only when the user explicitly requests PPTD-only output or the environment cannot run the exporter; in the latter case, report the exact blocker and still deliver the complete PPTD project.Deliver with normal clickable local links using absolute paths. In the final response, link all of the following:
- the project directory;
- the
.pptdmanifest; - the
pages/directory andmedia/directory when present; - the generated
.pptxfile.
Use
scripts/export_pptx.py. Its default mode iseditable, implemented with PptxGenJS. It preserves PPTD z-order and creates native objects withelementIdstored as the PowerPoint object name.Author for editable coverage:
- use
text,shape,line, andimageelements; - use solid fills and solid page backgrounds;
- decompose icons, tables, advanced charts, gradients, cropped images, and unsupported custom paths into supported elements before export;
- allow the exporter to stop with page/element details when coverage is incomplete. Never silently fall back to a slide screenshot.
- use
Export command:
# default: native element-level editable PPTX python3 ~/.agents/skills/open-kimi-ppt/scripts/export_pptx.py \ /abs/path/project/deck.pptd \ --output /abs/path/project/deck.pptx # explicit compatibility route: one rendered image per slide python3 ~/.agents/skills/open-kimi-ppt/scripts/export_pptx.py \ /abs/path/project/deck.pptd \ --output /abs/path/project/deck.visual.pptx \ --mode visualA project directory may be passed when it contains exactly one
.pptdfile. Existing output files require--forcefor replacement. Use--transition noneto remove slide transitions.Editable-export contract:
- create and audit slide 1 before full-deck generation;
- map every source ID to the expected OOXML object type (
p:spfor text/shape/line,p:picfor image); - reject missing, duplicate, type-changed, or unexpected objects;
- preserve shape adjustments and apply East Asian paragraph properties;
- report
fullSlideRasterization: false, source-element counts, native-object counts, and the exporter name.
Keep
--mode visualas an explicit compatibility route for PPTD features outside editable coverage. It uses the local patched WASM;--browserselects the local neo-ppt browser UI. Label visual-mode output clearly because each slide is a rendered picture.After export, verify the PPTX ZIP, slide count, editable-object audit, and root-level transition order. Render representative or all pages for visual comparison. For high-risk decks, also perform the selection check described in step4.
When the user wants to open or edit a PPTD project manually, run
npx open-kimi-ppt-skill serve, openhttp://127.0.0.1:55173/, and authorize the complete project directory. The editor remains useful for PPTD editing; useexport_pptx.pyfor the guaranteed editable-output gate.End delivery with the project links, the element-level editable PPTX link, a one-line validation summary, and the optional
npx open-kimi-ppt-skill servereminder.Element animations (
page.animationsin PPTD — entrance / emphasis / exit / motion-path; seereference/pptd.md§6): use them only when the user explicitly requests animations, or when the deck is clearly intended for live presentation / slideshow playback and animation provides a clear benefit for staged disclosure, process demonstration, causal explanation, pacing, visual impact, or brand storytelling. Editable export currently preserves slide-level transitions; report element-animation limitations when present.Speaker notes (
noteson each.page): use them only when the user explicitly requests them; otherwise, do not add them.Parallel tool calls: during PPT production, make tool calls in parallel whenever possible; in each round, write multiple page files in parallel to reduce the number of steps.