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post-caption-inferences

Generate descriptive captions for images using AI, with options to control detail level, randomness, and model-specific training.

Instructions

Caption image(s)

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
dryRunNo
ensureIPClearedNoWhether we try to ensure IP removal for new prompt generation.
imagesYes
seedNoIf specified, the API will make a best effort to produce the same results, such that repeated requests with the same `seed` and parameters should return the same outputs. Must be used along with the same parameters including prompt, model's state, etc..
unwantedSequencesNo
modelIdNoWhen provided, the model will follow the model's training images and examples' prompt to generate the captions.
temperatureNoThe sampling temperature to use. Higher values like `0.8` will make the output more random, while lower values like `0.2` will make it more focused and deterministic. We generally recommend altering this or `topP` but not both.
assetIdsNo
topPNoAn alternative to sampling with temperature, called nucleus sampling, where the model considers the results of the tokens with top_p probability mass. So `0.1` means only the tokens comprising the top `10%` probability mass are considered. We generally recommend altering this or `temperature` but not both.
detailsLevelNoThe details level used to generate the captions. When a modelId is provided and examples are available, the details level is ignored.
Behavior1/5

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

No annotations are provided, so the description must fully disclose behavioral traits. 'Caption image(s)' gives no information about what the tool does beyond the basic action—no details on output format, rate limits, permissions required, or side effects. This is inadequate for a tool with 10 parameters and no output schema.

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

Conciseness5/5

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

The description is extremely concise with two words, 'Caption image(s)', which is front-loaded and wastes no space. However, this brevity comes at the cost of clarity and completeness, but as per the dimension's focus, it is structurally efficient.

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

Completeness1/5

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

Given the tool's complexity (10 parameters, 60% schema coverage, no annotations, no output schema), the description is completely inadequate. It does not explain what the tool returns, how it behaves, or provide any context beyond the minimal action, failing to meet the needs for effective tool invocation.

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

Parameters2/5

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

Schema description coverage is 60%, but the description adds no parameter semantics beyond the tool name. It does not explain what 'images' should contain, how 'dryRun' affects behavior, or the purpose of other parameters like 'ensureIPCleared' or 'unwantedSequences'. The description fails to compensate for the 40% coverage gap.

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

Purpose2/5

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

The description 'Caption image(s)' restates the tool name 'post-caption-inferences' in a slightly different phrasing, making it tautological. It lacks specificity about what 'caption' entails (e.g., generating descriptive text for images) and does not distinguish this tool from sibling tools like 'post-describe-style-inferences' or other image processing tools.

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

Usage Guidelines1/5

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

The description provides no guidance on when to use this tool versus alternatives. With many sibling tools for image processing (e.g., 'post-img2img-inferences', 'post-detect-inferences'), there is no indication of context, prerequisites, or exclusions, leaving the agent without usage direction.

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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