ComfyMCP Studio (tuannguyen14/ComfyAI-MCP-GameAssets) is an MCP server listed on the M8ven Trust Index. It scores 64 out of 100, grade C. It declares 12 tools. No publisher has claimed this listing.

C
Caution
64/100

ComfyMCP Studio

Generates 2D game assets (sprites, icons, tilesets, characters, animations) using AI workflows powered by ComfyUI with support for viewpoint control, style presets, and Unity export.

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

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Who stands behind it

tuannguyen14

Source: Glama

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Install from

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
⚠️
Tool descriptions don’t match what handlers do
5 tools describe read intent but their handlers mutate — generate_icons (line 276: file_path.write_bytes(image_bytes)); generate_character (line 468: file_path.write_bytes(image_bytes)); generate_with_viewpoint (line 729: file_path.write_bytes(image_bytes))
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
// tools this server exposes12 tools

These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.

list_available_presets

List all available style presets for asset generation. Returns: JSON object containing all presets with their configurations

generate_sprite

Generate a single game sprite from a text description. Args: prompt: Description of the sprite to generate (e.g., "a blue slime monster") preset: Style preset to use (default, pixel_16, pixel_32, flat_ui, handpainted, etc.) width: Override width in pixels height: Override height in pixels negative_p

generate_icons

Generate multiple game icons from a list of descriptions. Args: prompts: List of icon descriptions (e.g., ["sword", "shield", "potion"]) preset: Style preset to use (default: icon). Options: icon, icon_item, flat_ui size: Icon size in pixels (square) seed: Base seed for reproducibility (each icon ge

generate_tileset

Generate a set of tileable game tiles. Args: theme: Overall theme for the tileset (e.g., "forest", "dungeon", "sci-fi") tile_types: List of tile types to generate (e.g., ["ground", "wall", "water"]) preset: Style preset to use (default: tileset). Options: tileset, topdown_tile tile_size: Size of eac

generate_character

Generate character sprites with optional multiple poses. Args: description: Character description (e.g., "a knight in silver armor") poses: List of poses to generate (e.g., ["idle", "walking", "attacking"]) preset: Style preset to use (default: character). Options: character, character_portrait, pix

generate_character_animations

Generate multiple character poses with consistent identity using img2img. This tool takes a reference character image and generates variations with different poses while maintaining the same character identity (outfit, colors, style). Args: reference_image_base64: Base64 encoded reference character

generate_with_viewpoint

Generate a game asset with precise camera viewpoint control using ControlNet. This tool uses depth maps to guide the generation, ensuring consistent camera angles like top-down, side view, front view, etc. Args: prompt: Description of the asset to generate (e.g., "a wooden barrel") view_type: Camera

generate_topdown_asset

Simplified tool to generate top-down 2D game assets with guaranteed viewpoint. This is a convenience wrapper around generate_with_viewpoint specifically for top-down games (RPG, strategy, etc.). Args: prompt: Description of the asset (e.g., "wooden treasure chest", "stone well") asset_type: Type of

process_image

Apply post-processing operations to an image. Args: image_base64: Base64 encoded input image operations: List of operations to apply: "resize", "remove_background", "add_outline" resize_width: Target width for resize operation resize_height: Target height for resize operation outline_color: Hex colo

create_sprite_atlas

Combine multiple images into a sprite atlas/spritesheet. Args: images_base64: List of base64 encoded images columns: Number of columns in the atlas padding: Padding between sprites in pixels save_to_file: Whether to save atlas to disk filename: Custom filename for the atlas Returns: JSON with the co

export_to_unity

Export a generated asset directly to a Unity project. Args: image_base64: Base64 encoded image to export asset_name: Name for the asset file (without extension) asset_type: Unity folder type (Sprites, Textures, UI, etc.) subfolder: Optional subfolder within the asset type folder Returns: JSON with e

batch_generate

Generate multiple assets in batch from a list of prompts. Args: prompts: List of asset descriptions preset: Style preset to use for all generations width: Override width for all assets height: Override height for all assets seed: Base seed for reproducibility (each prompt gets seed+index) save_to_fi

// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configBACKEND_TYPE"": "comfyui",
configCOMFYUI_HOST"": "127.0.0.1",
configCOMFYUI_PORT"": "8188"
configOUTPUT_DIRGenerated images are saved under when you call tools with save_to_file=true.
configUNITY_ASSETS_DIRC:/Projects/MyGame/Assets
configALLOW_WRITE_ROOTS
configMAX_IMAGE_BASE64_CHARS
configMCP_TRANSPORT
configMCP_MOUNT_PATH
configCOMFYUI_CHECKPOINTsd_xl_base_1.0.safetensors
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

12/12 tools missing one or more hints — list_available_presets (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); generate_sprite (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); generate_icons (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +9 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Descriptions match behaviour

5 tools describe read intent but their handlers mutate — generate_icons (line 276: file_path.write_bytes(image_bytes)); generate_character (line 468: file_path.write_bytes(image_bytes)); generate_with_viewpoint (line 729: file_path.write_bytes(image_bytes))

Rename the tool, rewrite the description, or move the side-effect into a separate clearly-named tool.

License file

No license file

Add a LICENSE file (MIT, Apache-2.0, etc.).

Tool test coverage

6/12 tools referenced in tests (50%)

Write tests that reference each tool by name so every tool has at least one test.

Tool description accuracy

5 tools have description/behavior mismatches: generate_icons: description implies read-only but handler writes/deletes/executes; generate_character: description implies read-only but handler writes/deletes/executes; generate_with_viewpoint: description implies read-only but handler writes/deletes/executes

Update tool descriptions to accurately reflect all capabilities — especially write, delete, or execute operations.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 6 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
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commit: 6d8c593004f654782d2562473e023f9fa9e0fb72
code hash: 660a293f32946b097dd79c5891caff9e2e29db4daee9e32f02674d95b399bd87
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