Magic Hour

by ai.magichour.mcp

Overview Discussions Admin

AI Image Generator

ai_image_generator_create_image

Create an AI image with advanced model selection and quality controls.

MCP guidance:

This starts an async image generation job and returns id plus credits_charged immediately. If the user wants the finished result, call the wait_for_image_project helper with the returned id, or poll the matching GET /v1/image-projects/{id} endpoint until status is complete, error, or canceled. Completed projects include downloads with direct URLs. The custom wait helper also returns exact_download_urls separately from expiration metadata.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`name`	No	Give your image a custom name for easy identification.	Ai Image - dateTime
`model`	No	The AI model to use for image generation. Each model has different capabilities and costs. Models: - `default` - Use the model we recommend, which will change over time. This is recommended unless you need a specific model. This is the default behavior. - `flux-2-klein` - from 5 credits/image - Supported resolutions: 640px, 1k, 2k - Available for tiers: free, creator, pro, business - Image count allowed: 1 - `flux-schnell` - from 5 credits/image - Supported resolutions: 640px, 1k, 2k - Available for tiers: free, creator, pro, business - Image count allowed: 1, 2, 3, 4 - `gpt-image-2` - from 50 credits/image - Supported resolutions: 640px, 1k, 2k, 4k - Available for tiers: creator, pro, business - Image count allowed: 1, 2, 3, 4 - `gpt-image-2.5-flare` - from 100 credits/image - Supported resolutions: 640px, 1k, 2k, 4k - Available for tiers: creator, pro, business - Image count allowed: 1, 2, 3, 4 - `krea-2` - from 10 credits/image - Supported resolutions: 640px, 1k - Available for tiers: free, creator, pro, business - Image count allowed: 1 - `nano-banana` - from 50 credits/image - Supported resolutions: 640px, 1k - Available for tiers: creator, pro, business - Image count allowed: 1, 2, 3, 4 - `nano-banana-2` - from 100 credits/image - Supported resolutions: 640px, 1k, 2k, 4k - Available for tiers: creator, pro, business - Image count allowed: 1, 4, 9, 16 - `nano-banana-2-lite` - from 50 credits/image - Supported resolutions: 640px, 1k - Available for tiers: creator, pro, business - Image count allowed: 1, 2, 3, 4 - `nano-banana-pro` - from 150 credits/image - Supported resolutions: 1k, 2k, 4k - Available for tiers: creator, pro, business - Image count allowed: 1, 4, 9, 16 - `seedream-v4` - from 40 credits/image - Supported resolutions: 640px, 1k, 2k, 4k - Available for tiers: creator, pro, business - Image count allowed: 1, 2, 3, 4 - `seedream-v5-pro` - from 75 credits/image - Supported resolutions: 640px, 1k, 2k - Available for tiers: creator, pro, business - Image count allowed: 1, 2, 3, 4 - `z-image-turbo` - from 5 credits/image - Supported resolutions: 640px, 1k, 2k - Available for tiers: free, creator, pro, business - Image count allowed: 1, 2, 3, 4 Deprecated Enum Values: - `seedream` - Use `seedream-v4` instead.
`style`	Yes	The art style to use for image generation.
`resolution`	No	Maximum resolution (longest edge) for the output image. Options: - `640px` — up to 640px - `1k` — up to 1024px - `2k` — up to 2048px - `4k` — up to 4096px - `auto` — Deprecated. Mapped server-side from your subscription tier to the best matching resolution the model supports Per-model support: - `flux-2-klein` - 640px, 1k, 2k - `flux-schnell` - 640px, 1k, 2k - `gpt-image-2` - 640px, 1k, 2k, 4k - `gpt-image-2.5-flare` - 640px, 1k, 2k, 4k - `krea-2` - 640px, 1k - `nano-banana` - 640px, 1k - `nano-banana-2` - 640px, 1k, 2k, 4k - `nano-banana-2-lite` - 640px, 1k - `nano-banana-pro` - 1k, 2k, 4k - `seedream-v4` - 640px, 1k, 2k, 4k - `seedream-v5-pro` - 640px, 1k, 2k - `z-image-turbo` - 640px, 1k, 2k Note: Resolution availability depends on the model and your subscription tier.	auto
`image_count`	Yes	Number of images to generate. Maximum varies by model.
`aspect_ratio`	No	The aspect ratio of the output image(s). If not specified, defaults to `1:1` (square).

Output Schema

TableJSON Schema

Name	Required	Description	Default
`id`	Yes	Unique ID of the image. Use it with the [Get image Project API](https://docs.magichour.ai/api-reference/image-projects/get-image-details) to fetch status and downloads.
`credits_charged`	Yes	The amount of credits deducted from your account to generate the image. We charge credits right when the request is made. If an error occurred while generating the image(s), credits will be refunded and this field will be updated to include the refund.

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedSep 29, 2026

changedInput schema / properties / model / enum

Previous value: -[
-  "default",
-  "nano-banana-2",
-  "gpt-image-2",
-  "gpt-image-2.5-flare",
-  "z-image-turbo",
-  "flux-2-klein",
-  "nano-banana-2-lite",
-  "krea-2",
-  "seedream-v4",
-  "seedream-v5-pro",
-  "nano-banana",
-  "nano-banana-pro",
-  "flux-schnell",
-  "seedream"
-]New value: +[
+  "default",
+  "z-image-turbo",
+  "flux-2-klein",
+  "nano-banana-2-lite",
+  "nano-banana-2",
+  "krea-2",
+  "gpt-image-2.5-flare",
+  "gpt-image-2",
+  "seedream-v5-pro",
+  "seedream-v4",
+  "nano-banana",
+  "nano-banana-pro",
+  "flux-schnell",
+  "seedream"
+]

Changed1 schema field changedSep 26, 2026
- changedInput schema / properties / resolution / example
```
Previous value: -"auto"New value: +"1k"
```

Changed1 schema field changedSep 24, 2026

removedInput schema / properties / context

Removed value: -{
-  "description": "Explain in 15-25 words, in third person, why this tool is called and how it supports the user's goal. For analytics only. You MUST describe only the abstract purpose of the tool call. NEVER include, repeat, paraphrase, or infer personal, sensitive, or identifying information from the user request or tool results, including names, emails, phone numbers, IPs, IDs, or credentials. You MUST generalize specific entities into roles such as \"a user\", \"the customer\", or \"an account\". Example: \"Retrieving a customer's recent orders to investigate a billing issue and help support determine the appropriate resolution.\"",
-  "type": "string"
-}

Changed3 schema fields changedSep 16, 2026

changedInput schema / properties / model / description

Previous value: -"The AI model to use for image generation. Each model has different capabilities and costs.\n\n**Models:**\n- `default` - Use the model we recommend, which will change over time. This is recommended unless you need a specific model. This is the default behavior.\n- `flux-2-klein` - from 5 credits/image\n  - Supported resolutions: 640px, 1k, 2k\n  - Available for tiers: free, creator, pro, business\n  - Image count allowed: 1\n- `flux-schnell` - from 5 credits/image\n  - Supported resolutions: 640px, 1k, 2k\n  - Available for tiers: free, creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `gpt-image-2` - from 50 credits/image\n  - Supported resolutions: 640px, 1k, 2k, 4k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `gpt-image-2.5-flare` - from 100 credits/image\n  - Supported resolutions: 640px, 1k, 2k, 4k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `nano-banana` - from 50 credits/image\n  - Supported resolutions: 640px, 1k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `nano-banana-2` - from 100 credits/image\n  - Supported resolutions: 640px, 1k, 2k, 4k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 4, 9, 16\n- `nano-banana-2-lite` - from 50 credits/image\n  - Supported resolutions: 640px, 1k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `nano-banana-pro` - from 150 credits/image\n  - Supported resolutions: 1k, 2k, 4k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 4, 9, 16\n- `seedream-v4` - from 40 credits/image\n  - Supported resolutions: 640px, 1k, 2k, 4k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `seedream-v5-pro` - from 75 credits/image\n  - Supported resolutions: 640px, 1k, 2k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `z-image-turbo` - from 5 credits/image\n  - Supported resolutions: 640px, 1k, 2k\n  - Available for tiers: free, creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n\n**Deprecated Enum Values:**\n- `seedream` - Use `seedream-v4` instead.\n"New value: +"The AI model to use for image generation. Each model has different capabilities and costs.\n\n**Models:**\n- `default` - Use the model we recommend, which will change over time. This is recommended unless you need a specific model. This is the default behavior.\n- `flux-2-klein` - from 5 credits/image\n  - Supported resolutions: 640px, 1k, 2k\n  - Available for tiers: free, creator, pro, business\n  - Image count allowed: 1\n- `flux-schnell` - from 5 credits/image\n  - Supported resolutions: 640px, 1k, 2k\n  - Available for tiers: free, creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `gpt-image-2` - from 50 credits/image\n  - Supported resolutions: 640px, 1k, 2k, 4k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `gpt-image-2.5-flare` - from 100 credits/image\n  - Supported resolutions: 640px, 1k, 2k, 4k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `krea-2` - from 10 credits/image\n  - Supported resolutions: 640px, 1k\n  - Available for tiers: free, creator, pro, business\n  - Image count allowed: 1\n- `nano-banana` - from 50 credits/image\n  - Supported resolutions: 640px, 1k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `nano-banana-2` - from 100 credits/image\n  - Supported resolutions: 640px, 1k, 2k, 4k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 4, 9, 16\n- `nano-banana-2-lite` - from 50 credits/image\n  - Supported resolutions: 640px, 1k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `nano-banana-pro` - from 150 credits/image\n  - Supported resolutions: 1k, 2k, 4k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 4, 9, 16\n- `seedream-v4` - from 40 credits/image\n  - Supported resolutions: 640px, 1k, 2k, 4k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `seedream-v5-pro` - from 75 credits/image\n  - Supported resolutions: 640px, 1k, 2k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `z-image-turbo` - from 5 credits/image\n  - Supported resolutions: 640px, 1k, 2k\n  - Available for tiers: free, creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n\n**Deprecated Enum Values:**\n- `seedream` - Use `seedream-v4` instead.\n"

changedInput schema / properties / model / enum

Previous value: -[
-  "default",
-  "nano-banana-2",
-  "gpt-image-2",
-  "gpt-image-2.5-flare",
-  "z-image-turbo",
-  "flux-2-klein",
-  "nano-banana-2-lite",
-  "seedream-v4",
-  "seedream-v5-pro",
-  "nano-banana",
-  "nano-banana-pro",
-  "flux-schnell",
-  "seedream"
-]New value: +[
+  "default",
+  "nano-banana-2",
+  "gpt-image-2",
+  "gpt-image-2.5-flare",
+  "z-image-turbo",
+  "flux-2-klein",
+  "nano-banana-2-lite",
+  "krea-2",
+  "seedream-v4",
+  "seedream-v5-pro",
+  "nano-banana",
+  "nano-banana-pro",
+  "flux-schnell",
+  "seedream"
+]

changedInput schema / properties / resolution / description

Previous value: -"Maximum resolution (longest edge) for the output image.\n\n**Options:**\n- `640px` — up to 640px\n- `1k` — up to 1024px\n- `2k` — up to 2048px\n- `4k` — up to 4096px\n- `auto` — **Deprecated.** Mapped server-side from your subscription tier to the best matching resolution the model supports\n\n**Per-model support:**\n- `flux-2-klein` - 640px, 1k, 2k\n- `flux-schnell` - 640px, 1k, 2k\n- `gpt-image-2` - 640px, 1k, 2k, 4k\n- `gpt-image-2.5-flare` - 640px, 1k, 2k, 4k\n- `nano-banana` - 640px, 1k\n- `nano-banana-2` - 640px, 1k, 2k, 4k\n- `nano-banana-2-lite` - 640px, 1k\n- `nano-banana-pro` - 1k, 2k, 4k\n- `seedream-v4` - 640px, 1k, 2k, 4k\n- `seedream-v5-pro` - 640px, 1k, 2k\n- `z-image-turbo` - 640px, 1k, 2k\n\nNote: Resolution availability depends on the model and your subscription tier."New value: +"Maximum resolution (longest edge) for the output image.\n\n**Options:**\n- `640px` — up to 640px\n- `1k` — up to 1024px\n- `2k` — up to 2048px\n- `4k` — up to 4096px\n- `auto` — **Deprecated.** Mapped server-side from your subscription tier to the best matching resolution the model supports\n\n**Per-model support:**\n- `flux-2-klein` - 640px, 1k, 2k\n- `flux-schnell` - 640px, 1k, 2k\n- `gpt-image-2` - 640px, 1k, 2k, 4k\n- `gpt-image-2.5-flare` - 640px, 1k, 2k, 4k\n- `krea-2` - 640px, 1k\n- `nano-banana` - 640px, 1k\n- `nano-banana-2` - 640px, 1k, 2k, 4k\n- `nano-banana-2-lite` - 640px, 1k\n- `nano-banana-pro` - 1k, 2k, 4k\n- `seedream-v4` - 640px, 1k, 2k, 4k\n- `seedream-v5-pro` - 640px, 1k, 2k\n- `z-image-turbo` - 640px, 1k, 2k\n\nNote: Resolution availability depends on the model and your subscription tier."

Changed3 schema fields changedSep 12, 2026

changedInput schema / properties / model / description

Previous value: -"The AI model to use for image generation. Each model has different capabilities and costs.\n\n**Models:**\n- `default` - Use the model we recommend, which will change over time. This is recommended unless you need a specific model. This is the default behavior.\n- `flux-2-klein` - from 5 credits/image\n  - Supported resolutions: 640px, 1k, 2k\n  - Available for tiers: free, creator, pro, business\n  - Image count allowed: 1\n- `flux-schnell` - from 5 credits/image\n  - Supported resolutions: 640px, 1k, 2k\n  - Available for tiers: free, creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `gpt-image-2` - from 50 credits/image\n  - Supported resolutions: 640px, 1k, 2k, 4k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `nano-banana` - from 50 credits/image\n  - Supported resolutions: 640px, 1k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `nano-banana-2` - from 100 credits/image\n  - Supported resolutions: 640px, 1k, 2k, 4k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 4, 9, 16\n- `nano-banana-2-lite` - from 50 credits/image\n  - Supported resolutions: 640px, 1k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `nano-banana-pro` - from 150 credits/image\n  - Supported resolutions: 1k, 2k, 4k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 4, 9, 16\n- `seedream-v4` - from 40 credits/image\n  - Supported resolutions: 640px, 1k, 2k, 4k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `seedream-v5-pro` - from 75 credits/image\n  - Supported resolutions: 640px, 1k, 2k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `z-image-turbo` - from 5 credits/image\n  - Supported resolutions: 640px, 1k, 2k\n  - Available for tiers: free, creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n\n**Deprecated Enum Values:**\n- `seedream` - Use `seedream-v4` instead.\n"New value: +"The AI model to use for image generation. Each model has different capabilities and costs.\n\n**Models:**\n- `default` - Use the model we recommend, which will change over time. This is recommended unless you need a specific model. This is the default behavior.\n- `flux-2-klein` - from 5 credits/image\n  - Supported resolutions: 640px, 1k, 2k\n  - Available for tiers: free, creator, pro, business\n  - Image count allowed: 1\n- `flux-schnell` - from 5 credits/image\n  - Supported resolutions: 640px, 1k, 2k\n  - Available for tiers: free, creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `gpt-image-2` - from 50 credits/image\n  - Supported resolutions: 640px, 1k, 2k, 4k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `gpt-image-2.5-flare` - from 100 credits/image\n  - Supported resolutions: 640px, 1k, 2k, 4k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `nano-banana` - from 50 credits/image\n  - Supported resolutions: 640px, 1k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `nano-banana-2` - from 100 credits/image\n  - Supported resolutions: 640px, 1k, 2k, 4k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 4, 9, 16\n- `nano-banana-2-lite` - from 50 credits/image\n  - Supported resolutions: 640px, 1k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `nano-banana-pro` - from 150 credits/image\n  - Supported resolutions: 1k, 2k, 4k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 4, 9, 16\n- `seedream-v4` - from 40 credits/image\n  - Supported resolutions: 640px, 1k, 2k, 4k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `seedream-v5-pro` - from 75 credits/image\n  - Supported resolutions: 640px, 1k, 2k\n  - Available for tiers: creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n- `z-image-turbo` - from 5 credits/image\n  - Supported resolutions: 640px, 1k, 2k\n  - Available for tiers: free, creator, pro, business\n  - Image count allowed: 1, 2, 3, 4\n\n**Deprecated Enum Values:**\n- `seedream` - Use `seedream-v4` instead.\n"

changedInput schema / properties / model / enum

Previous value: -[
-  "default",
-  "nano-banana-2",
-  "gpt-image-2",
-  "z-image-turbo",
-  "flux-2-klein",
-  "nano-banana-2-lite",
-  "seedream-v4",
-  "seedream-v5-pro",
-  "nano-banana",
-  "nano-banana-pro",
-  "flux-schnell",
-  "seedream"
-]New value: +[
+  "default",
+  "nano-banana-2",
+  "gpt-image-2",
+  "gpt-image-2.5-flare",
+  "z-image-turbo",
+  "flux-2-klein",
+  "nano-banana-2-lite",
+  "seedream-v4",
+  "seedream-v5-pro",
+  "nano-banana",
+  "nano-banana-pro",
+  "flux-schnell",
+  "seedream"
+]

changedInput schema / properties / resolution / description

Previous value: -"Maximum resolution (longest edge) for the output image.\n\n**Options:**\n- `640px` — up to 640px\n- `1k` — up to 1024px\n- `2k` — up to 2048px\n- `4k` — up to 4096px\n- `auto` — **Deprecated.** Mapped server-side from your subscription tier to the best matching resolution the model supports\n\n**Per-model support:**\n- `flux-2-klein` - 640px, 1k, 2k\n- `flux-schnell` - 640px, 1k, 2k\n- `gpt-image-2` - 640px, 1k, 2k, 4k\n- `nano-banana` - 640px, 1k\n- `nano-banana-2` - 640px, 1k, 2k, 4k\n- `nano-banana-2-lite` - 640px, 1k\n- `nano-banana-pro` - 1k, 2k, 4k\n- `seedream-v4` - 640px, 1k, 2k, 4k\n- `seedream-v5-pro` - 640px, 1k, 2k\n- `z-image-turbo` - 640px, 1k, 2k\n\nNote: Resolution availability depends on the model and your subscription tier."New value: +"Maximum resolution (longest edge) for the output image.\n\n**Options:**\n- `640px` — up to 640px\n- `1k` — up to 1024px\n- `2k` — up to 2048px\n- `4k` — up to 4096px\n- `auto` — **Deprecated.** Mapped server-side from your subscription tier to the best matching resolution the model supports\n\n**Per-model support:**\n- `flux-2-klein` - 640px, 1k, 2k\n- `flux-schnell` - 640px, 1k, 2k\n- `gpt-image-2` - 640px, 1k, 2k, 4k\n- `gpt-image-2.5-flare` - 640px, 1k, 2k, 4k\n- `nano-banana` - 640px, 1k\n- `nano-banana-2` - 640px, 1k, 2k, 4k\n- `nano-banana-2-lite` - 640px, 1k\n- `nano-banana-pro` - 1k, 2k, 4k\n- `seedream-v4` - 640px, 1k, 2k, 4k\n- `seedream-v5-pro` - 640px, 1k, 2k\n- `z-image-turbo` - 640px, 1k, 2k\n\nNote: Resolution availability depends on the model and your subscription tier."

Changed1 schema field changedSep 11, 2026

addedInput schema / properties / context

Added value: +{
+  "description": "Explain in 15-25 words, in third person, why this tool is called and how it supports the user's goal. For analytics only. You MUST describe only the abstract purpose of the tool call. NEVER include, repeat, paraphrase, or infer personal, sensitive, or identifying information from the user request or tool results, including names, emails, phone numbers, IPs, IDs, or credentials. You MUST generalize specific entities into roles such as \"a user\", \"the customer\", or \"an account\". Example: \"Retrieving a customer's recent orders to investigate a billing issue and help support determine the appropriate resolution.\"",
+  "type": "string"
+}

First observedSep 1, 2026

TDQS

A3.9/5.0

Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations only declare readOnlyHint=false and destructiveHint=false, so the description carries the important behavioral load: it discloses that the call is asynchronous, returns `id` plus `credits_charged` immediately, that completion states are `complete`/`error`/`canceled`, and that completed projects carry `downloads`/`exact_download_urls` plus expiration metadata. This is meaningful context the annotations cannot convey. It stops short of describing credit-refund or failure semantics.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

One sentence of purpose followed by a tightly packed guidance block that is front-loaded with the async behavior and the next-tool call. Every sentence earns its place; the only redundancy is that return-content detail (downloads URLs) is also available via the output schema.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a 6-parameter, nested-object tool with enums and an output schema, the description covers the orchestration gap an agent would otherwise miss (async handoff to wait_for_image_project, terminal statuses, expiration metadata). Combined with the rich schema, an agent has enough to invoke and follow up correctly; only cross-sibling selection guidance is missing.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100% and the schema itself carries per-model resolution/tier/credit detail, so the baseline is 3. The description adds no parameter-level meaning beyond 'advanced model selection and quality controls'; it only names the returned `id` and `credits_charged` fields.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a clear verb+resource ('Create an AI image') and scopes it with 'advanced model selection and quality controls', which separates it from the many sibling generators that produce images from existing inputs (editor, upscaler, clothes changer). It does not name any specific sibling, so differentiation is implied rather than explicit.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The MCP guidance gives an explicit when-flow: it returns async, and if the finished result is wanted, call `wait_for_image_project` or poll the GET endpoint until a terminal status. This is strong operational guidance. It does not, however, say when to pick this generator over siblings like ai_image_editor_create_image or ai_headshot_generator_create_image.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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