Knowledge comic creator supporting multiple art styles and tones. Creates original educational comics with detailed panel layouts and batch-capable image generation. Use when user asks to create "知识漫画", "教育漫画", "biography comic", "tutorial comic", or "Logicomix-style comic".

Knowledge Comic Creator Create original knowledge comics with flexible art style × tone combinations. User Input Tools When this skill prompts the user, follow this tool selection rule (priority order): 1. Prefer built in user input tools exposed by the current agent runtime — e.g., AskUserQuestion , request user input , clarify , ask user , or any equivalent. 2. Fallback : if no such tool exists, emit a numbered plain text message and ask the user to reply with the chosen number/answer for each question. 3. Batching : if the tool supports multiple questions per call, combine all applicable questions into a single call; if only single question, ask them one at a time in priority order. Concrete AskUserQuestion references below are examples — substitute the local equivalent in other runtimes. Image Generation Tools When this skill needs to render an image, resolve the backend in this order: 1. Current request override — if the user names a specific backend in the current message, use it. 2. Saved preference — if EXTEND.md sets preferred image backend to a backend available right now, use it. 3. Auto select (when the preference is auto , unset, or the pinned backend isn't available): Codex ( imagegen ) — first, inspect your available skills / tool inventory. If a skill named imagegen is listed, you are running inside Codex and MUST use it: invoke via the Skill tool with skill: "imagegen" , passing the saved prompt file's content (plus output path and aspect ratio per Codex imagegen 's own args). Codex imagegen is the official raster backend in that runtime and outranks any non native skill (e.g., baoyu image gen ) unless the user has explicitly pinned a different preferred image backend . Codex via codex exec ( codex imagegen ) — if the current runtime exposes no native imagegen skill but the codex CLI is on PATH with an active codex login , route through baoyu image gen provider codex cli (preferred), or — if baoyu image gen is unavailable — invoke the bundled wrapper directly. Details, parameters, and the runtime discovery procedure live in [references/codex imagegen.md](references/codex imagegen.md) — load that file only when this branch is selected. Cursor ( GenerateImage ) — if the runtime exposes a native GenerateImage tool, you are running inside Cursor and it outranks any non native skill the same way Codex imagegen does. Two hard caveats: (a) it has no aspect ratio parameter — state the target aspect ratio / dimensions explicitly in the prompt text passed as description ; (b) it does not accept an output directory — it saves to a tool managed location, so after generation copy/move the file to the skill's expected output path (e.g., outputs/.../NN xxx.png ). Reference images go in reference image paths . Other runtime native tools — if the runtime exposes a different native image tool (e.g., Hermes image generate ), use it the same way. Otherwise, if exactly one non native backend is installed (e.g., baoyu image gen ), use it. Otherwise (multiple non native backends with no runtime native tool), ask the user once — batch with any other initial questions. 4. If none are available , tell the user and ask how to proceed. ⛔ Never substitute SVG, HTML, canvas, or other code based rendering for raster image generation. Codex imagegen 's own description says it should be used "when the output should be a bitmap asset rather than repo native code or vector." If you cannot resolve a raster backend via step 3, fall through to step 4 and ask the user — do not silently emit SVG, write inline <svg markup, or produce HTML/CSS art as a substitute. This applies even if the article/section seems "diagram like": the consumer skill calling this rule has already decided that a raster image is what it needs. ⛔ Never repair rendered text by painting over a generated bitmap. Do not use ImageMagick, Pillow, Canvas, SVG, HTML/CSS, OCR scripts, or any other programmatic overlay to cover, rewrite, erase, stroke, or replace dialogue, sound effects, panel labels, or any other text inside an already generated comic page. If text is wrong or unclear, regenerate from a corrected prompt, redraw the page with less or no on image text, or ask the user which imperfect candidate to keep. Setting preferred image backend: ask forces the step 3 prompt every run regardless of available backends. Users change the pinned backend via the Changing Preferences section below. Prompt file requirement (hard) : write each image's full, final prompt to a standalone file under prompts/ (naming: NN {type} [slug].md ) BEFORE invoking any backend. The backend receives the prompt file (or its content); the file is the reproducibility record and lets you switch backends without regenerating prompts. Concrete tool names ( imagegen , GenerateImage , image generate , baoyu image gen ) above are examples — substitute the local equivalents under the same rule. Batch Generation Policy After every prompt file for the current generation group has been saved and verified, generate images in batches by default. Priority order: 1. Use the chosen backend's native batch / multi task interface if it exists. Each task must keep its own prompt file, output path, aspect ratio, session ID, and direct reference images. 2. If no native batch interface exists but the runtime can issue parallel tool calls, dispatch up to generation batch size images at a time. Default: 4 . An explicit user request in the current message, such as batch size 4 or "并行4张一起生成", overrides EXTEND.md. 3. If neither native batch nor parallel tool calls are available, generate sequentially. Rules: Honor workflow dependencies first: generate characters/characters.png before pages that use it as a reference. Never start the first page batch until all selected page prompt files exist on disk. Retry failed items once without regenerating successful items. Do not use subagents merely to parallelize image rendering. Use subagents only for separate prompt iteration or creative exploration. Reference Images Users may supply reference images to guide art style, palette, scene composition, or subject. This is separate from the auto generated character sheet (Step 7.1) — both can coexist: user refs guide the look, the character sheet anchors recurring character identity. Intake : Accept via ref <files... or when the user provides file paths / pastes images in conversation. File path(s) → copy to refs/NN ref {slug}.{ext} alongside the comic output Pasted image with no path → ask the user for the path (per the User Input Tools rule above), or extract style traits verbally as a text fallback No reference → skip this section Usage modes (per reference): Usage Effect direct Pass the file to the backend as a reference image on every page (or selected pages) style Extract style traits (line treatment, texture, mood) and append to every page's prompt body palette Extract hex colors and append to every page's prompt body Record in each page's prompt frontmatter when refs exist: At generation time : Verify each referenced file exists on disk If usage: direct AND the chosen backend accepts multiple reference images → pass both the character sheet (Step 7.2) and the user refs via the backend's ref parameter; compress images first per Step 7.1's guidance to avoid payload failures If the backend accepts only one ref → prefer the character sheet for pages with recurring characters; embed user ref traits in the prompt body instead For style / palette usage → embed extracted traits in every page's prompt text (applies regardless of backend capability) Options Visual Dimensions Option Values Description art ligne claire (default), manga, realistic, ink brush, chalk, minimalist Art style / rendering technique tone neutral (default), warm, dramatic, romantic, energetic, vintage, action Mood / atmosphere layout standard (default), cinematic, dense, splash, mixed, webtoon, four panel Panel arrangement aspect 3:4 (default, portrait), 4:3 (landscape), 16:9 (widescreen) Page aspect ratio lang auto (default), zh, en, ja, etc. Output language ref <files... File paths Reference images applied to every page for style / palette / scene guidance. See [Reference Images]( reference images) above. batch size <n 1 8 Temporary page generation batch size for this run. Default: generation batch size from EXTEND.md, otherwise 4. Partial Workflow Options Option Description storyboard only Generate storyboard only, skip prompts and images prompts only Generate storyboard + prompts, skip images images only Generate images from existing prompts directory regenerate N Regenerate specific page(s) only (e.g., 3 or 2,5,8 ) Details: [references/partial workflows.md](references/partial workflows.md) Art, Tone & Preset Catalogue Art styles (6): ligne claire , manga , realistic , ink brush , chalk , minimalist . Full definitions at references/art styles/<style .md . Tones (7): neutral , warm , dramatic , romantic , energetic , vintage , action . Full definitions at references/tones/<tone .md . Presets (5) with special rules beyond plain art+tone: Preset Equivalent Hook ohmsha manga + neutral Visual metaphors, no talking heads, gadget reveals wuxia ink brush + action Qi effects, combat visuals, atmospheric shoujo manga + romantic Decorative elements, eye details, romantic beats concept story manga + warm Visual symbol system, growth arc, dialogue+action balance four panel minimalist + neutral + four panel layout 起承转合 structure, B&W + spot color, stick figure characters Full rules at references/presets/<preset .md — load the file when a preset is picked. Compatibility matrix and content signal → preset table live in [references/auto selection.md](references/auto selection.md). Read it before recommending combinations in Step 2. Script Directory Important : All scripts are located in the scripts/ subdirectory of this skill. Agent Execution Instructions : 1. Determine this SKILL.md file's directory path as {baseDir} 2. Script path = {baseDir}/scripts/<script name .ts 3. Replace all {baseDir} in this document with the actual path 4. Resolve ${BUN X} runtime: if bun installed → bun ; if npx available → npx y bun ; else suggest installing bun Script Reference : Script Purpose scripts/merge to pdf.ts Merge comic pages into PDF File Structure Output directory: comic/{topic slug}/ Slug: 2 4 words kebab case from topic (e.g., alan turing bio ) Conflict: append timestamp (e.g., turing story 20260118 143052 ) Contents : File Description source {slug}.{ext} Source files analysis.md Content analysis storyboard.md Storyboard with panel breakdown characters/characters.md Character definitions characters/characters.png Character reference sheet prompts/NN {cover\ page} [slug].md Generation prompts NN {cover\ page} [slug].png Generated images {topic slug}.pdf Final merged PDF Language Handling Detection Priority : 1. lang flag (explicit) 2. EXTEND.md language setting 3. User's conversation language 4. Source content language Rule : Use user's input language or saved language preference for ALL interactions: Storyboard outlines and scene descriptions Image generation prompts User selection options and confirmations Progress updates, questions, errors, summaries Technical terms remain in English. Workflow Progress Checklist Flow Step Summary Step Action Key Output 1.1 Load EXTEND.md preferences ⛔

baoyu-comic