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pbi_list_tmdl_files

Lists all TMDL files within a specified Power BI Project semantic model definition folder to facilitate model inspection and automation.

Instructions

List TMDL files in a Power BI Project semantic model definition folder.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
project_pathYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

No annotations provided. Description does not disclose behavioral traits such as whether it recurses subfolders, file extension filtering, or side effects. Minimal information leaves agent uncertain about behavior.

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

Conciseness3/5

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

Single sentence is concise but fails to include necessary details. Conciseness is good, but at the expense of completeness.

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?

Despite having only one parameter and an output schema, the description lacks parameter guidance and usage context. Not complete enough for correct invocation, especially regarding path semantics.

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 has 0% description coverage. Description does not add any meaning for the 'project_path' parameter (e.g., format, whether absolute/relative path, trailing slash). Agent has no clues beyond parameter name.

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?

Description uses specific verb 'List' and resource 'TMDL files' with location 'Power BI Project semantic model definition folder'. Clearly distinguishes from sibling tools like pbi_read_tmdl_file and pbi_write_tmdl_file.

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?

No guidance on when to use or not use this tool. No mention of alternatives among sibling listing tools. Description is purely functional without context.

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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