ASTRA

sensor_fuse

Read-onlyIdempotent

Fuse audio, visual, and olfactory sensor inputs with cross-modal attention to create unified multimodal representations for downstream analysis.

Instructions

Cross-Modal Attention Fusion

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "sensor_fuse"
  }
}

Input Schema

Name	Required	Description	Default
`includeAudio`	No
`includeVisual`	No
`includeOlfactory`	No

Schema Changelog

Changes observed during successful MCP inspections.

First observedv3.1.0Sep 23, 2026

TDQS

D1.5/5.0

Behavior1/5

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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is covered without the description. The description adds nothing beyond that – no mention of what is fused, what the fused output represents, or any side effects.

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

Conciseness2/5

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

The text is short, but it is under-specified rather than concise – a bare label with no front-loaded verb or scope. Length is not the problem; absence of information is.

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?

For a three-parameter fusion tool with an entirely undocumented schema, no output schema, and many plausible siblings, the description supplies none of the context needed to invoke it correctly.

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

Parameters1/5

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

Schema description coverage is 0% for three parameters (includeAudio, includeVisual, includeOlfactory). The description does not name or explain any of them, so an agent cannot tell what toggling each flag does or what the defaults imply.

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 is the same noun phrase as the title, 'Cross-Modal Attention Fusion', with no verb and no statement of what operation is performed. It hints at the domain (fusing modalities, consistent with sibling tools sensor_visual/sensor_audio/sensor_olfactory) but is effectively a restatement of the title rather than a description.

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

Usage Guidelines2/5

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

There is no guidance on when to call this tool versus sensor_process, sensor_status, or the individual sensor_* tools, nor any mention of prerequisites. The agent is left to infer entirely from the name that this performs fusion across modalities.

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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