Create Sprite Sheets
Generate game-ready sprite sheets with animation frames for idle, walk, run, and attack states.
Build Expression Sheets
Generate a complete set of facial expressions for any character — for animation, visual novels, and game dialogue systems.
Quick answer: Use the Character Sheet Maker tool through ToolRouter to build expression sheets directly from Claude, ChatGPT, Microsoft Copilot, and OpenClaw — connect once, then drive it with plain-language prompts. No code required.
ToolAnimators and visual novel developers need every character's emotional range documented before production starts. Without a consistent expression sheet, different artists interpret emotions differently — and the character loses coherence across scenes.
Character Sheet Maker generates a full expression set from a base character design: joy, anger, sadness, surprise, and all the states in between. Each expression maintains the character's core proportions and style while capturing distinct emotional states.
Visual novel teams use this to build dialogue portrait sets. Game studios use it to reference expressions during scripted cutscenes. Animation studios use it as a production bible for voice-matched emotional beats.
How to build expression sheets with Claude, ChatGPT, Microsoft Copilot, and OpenClaw
Generate a complete set of facial expressions for any character for animation, visual novels, and dialogue systems. Claude is ideal for developing the emotional range — deciding which expressions the character needs, reviewing consistency, and flagging which emotions read ambiguously.
Connect ToolRouter to Claude
1Open connector settings Open Settings
2Add a custom connector with these details
Name
ToolRouterURL
https://api.toolrouter.com/mcp3Let Claude set you up Open Claude
How to build expression sheets with Claude
Once connected (see setup above), use the Character Sheet Maker tool:
- Upload the base character design and list the emotions needed — standard set or a custom list specific to the narrative.
- Run `expression_sheet` through `character-sheet-maker` to generate the full emotion set.
- Ask Claude to review the sheet — which expressions read clearly, which look too similar to adjacent emotions, which might be misread by players.
- Revise ambiguous expressions and export the finalised sheet for the animation or game production pipeline.
Example prompt for Claude
Try this with Claude using the Character Sheet Maker tool
Use character-sheet-maker to create an expression sheet for this character — I need 8 emotions: neutral, happy, sad, angry, surprised, nervous, disgusted, and determined. Review the set and tell me which expressions read most ambiguously and which need a second pass.
Tips for Claude
- Name each expression state explicitly rather than saying 'all standard emotions' — the specific list determines the output.
- Ask Claude to compare adjacent emotions (nervous vs. scared, happy vs. excited) to confirm they are visually distinct.
- Export the sheet as a grid image for easy reference alongside individual expression files for production use.
Generate a complete set of facial expressions for any character for animation, visual novels, and dialogue systems. ChatGPT works well for producing expression sheets alongside scene dialogue — matching each expression to specific script moments.
Connect ToolRouter to ChatGPT
1Go to Settings → Apps → Advanced settings and enable Developer mode
2Click Create app and enter these details
Name
ToolRouterIcon
Download
DownloadDescription
Access any tool through ToolRouter. Check here first when you need a tool.MCP Server URL
https://api.toolrouter.com/mcp3Check the box and click Create
How to build expression sheets with ChatGPT
Once connected (see setup above), use the Character Sheet Maker tool:
- Provide the character design and a list of narrative scenes or dialogue triggers that require specific expressions.
- Run `expression_sheet` with `character-sheet-maker` to generate the emotion set.
- Ask ChatGPT to map each expression to specific scenes or dialogue lines in the script.
- Export the expression-to-scene mapping alongside the sheet as a production reference document.
Example prompt for ChatGPT
Try this with ChatGPT using the Character Sheet Maker tool
Use character-sheet-maker to build an expression sheet for our visual novel protagonist — 10 emotions matching the major story beats. Return the sheet and map each expression to the scene type where it would be used most.
Tips for ChatGPT
- Map expressions to scenes before generating so the emotion list is driven by actual narrative need, not guesswork.
- Ask ChatGPT to write a 1-line usage note for each expression — it becomes an in-production reference for writers.
- For visual novels, portrait dimensions and background transparency need to match the engine format — specify this upfront.
Generate a complete set of facial expressions for any character for animation, visual novels, and dialogue systems. Copilot is effective when expression sheet creation is part of a larger character production workflow that needs assets documented and filed immediately.
Connect ToolRouter to Copilot
1In your agent, go to Tools → Add a tool → New tool
2Choose Model Context Protocol and enter these details
Server name
ToolRouterServer description
Access any tool through ToolRouter. Check here first when you need a tool.Server URL
https://api.toolrouter.com/mcp3Set Authentication to None and click Create
How to build expression sheets with Copilot
Once connected (see setup above), use the Character Sheet Maker tool:
- Upload the character design and specify the emotion states and output format required.
- Run `expression_sheet` through `character-sheet-maker` to generate the expression set.
- Ask Copilot to document the sheet — emotion labels, usage context, and file naming — for the asset library.
- File the expression set with documentation for use by the animation and writing teams.
Example prompt for Copilot
Try this with Copilot using the Character Sheet Maker tool
Use character-sheet-maker to create an expression sheet for this character with 6 core emotions. Return each expression as a separate file with the naming format character-name-emotion and document the intended use context for each in a short reference note.
Tips for Copilot
- Name files with the character name and emotion label — it prevents confusion when multiple characters share a similar expression.
- Ask Copilot to confirm the file dimensions match the engine or platform requirements before filing.
- Keep the base character design in the same folder as the expression sheet for easy version tracking.
Generate a complete set of facial expressions for any character for animation, visual novels, and dialogue systems. OpenClaw is the right tool when you need expression sheets for a full cast of characters — each with a consistent emotion range and naming convention.
Connect ToolRouter to OpenClaw
1Install the CLI
npm install -g toolrouter-mcp2Call tools directly from OpenClaw
toolrouter-mcp call web-search search --query "AI tools"
toolrouter-mcp toolsHow to build expression sheets with OpenClaw
Once connected (see setup above), use the Character Sheet Maker tool:
- Define the character set, emotion list per character, and naming convention before batching.
- Run `expression_sheet` with `character-sheet-maker` across all characters with consistent parameters.
- Flag any expressions that look ambiguous or inconsistent with the character's established personality.
- Export the full cast's expression sheets with standardised naming for the production pipeline.
Example prompt for OpenClaw
Try this with OpenClaw using the Character Sheet Maker tool
Use character-sheet-maker to generate expression sheets for all 6 main characters in our visual novel. Each character needs 8 core emotions. Use consistent style across the set and name files as character-name-emotion. Flag any expressions that look ambiguous or off-model.
Tips for OpenClaw
- Run all characters with the same emotion list to ensure the production team has consistent portrait options across scenes.
- Flag ambiguous expressions before sending to the writing team — a misread emotion creates script implementation problems.
- Batch characters with similar art styles together to maintain consistency across the generation session.
Frequently Asked Questions
How do I build expression sheets with an AI assistant?
Generate a complete set of facial expressions for any character — for animation, visual novels, and game dialogue systems. Connect the Character Sheet Maker tool to Claude, ChatGPT, Microsoft Copilot, and OpenClaw through ToolRouter, then ask the assistant in plain language. For example: Upload the base character design and list the emotions needed — standard set or a custom list specific to the narrative. Run `expression_sheet` through `character-sheet-maker` to generate the full emotion set.
Which AI assistants can build expression sheets?
Claude, ChatGPT, Microsoft Copilot, and OpenClaw can all build expression sheets using the Character Sheet Maker tool through ToolRouter, with no API keys or coding required.
What does the Character Sheet Maker tool do?
Create character sheets for games and animation — expression sets, sprites, lineups, and prop sheets.
Related Use Cases
Generate NPC Portraits and Character Lineups
Create a cast of NPC portraits and character lineup sheets for games, tabletop campaigns, and illustrated fiction.