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jedshen123

App Data MCP

by jedshen123

trace_asset

Trace the lineage of a data asset to its upstream tables, events, and original platform links.

Instructions

Trace where a data asset comes from, including upstream tables/events/assets and original platform links.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
asset_idYes
Behavior2/5

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

No annotations are provided, so the description carries the full burden. It states what the tool does but does not disclose side effects (e.g., read-only), required permissions, error behavior, or whether it affects system state.

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?

The description is a single concise sentence of 15 words, efficiently conveying the tool's purpose without unnecessary words. However, it lacks structure like headings or bullet points.

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

Completeness2/5

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

With no output schema and no annotations, the description should clarify what the trace output looks like (e.g., list, graph), how it handles missing assets, and whether it includes downstream lineage. It only mentions 'upstream', leaving significant gaps.

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% and the description does not add any meaning to the single parameter asset_id beyond its type. No format, example, or constraints are given, so it adds no value over the schema.

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

Purpose5/5

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

The description clearly states the verb 'trace' and the resource 'data asset', and specifies what is included (upstream tables/events/assets and original platform links). This distinguishes it from siblings like get_asset and search_assets.

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

Usage Guidelines3/5

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

No explicit guidance on when to use this tool versus alternatives. The description implies it is for lineage tracing but does not contrast with other tools like search_assets that might also find related assets.

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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