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sondang91

Postman MCP Server

by sondang91

sync_from_controller

Automatically migrate API endpoints from .NET controller code to Postman collections by parsing C# controllers and generating corresponding requests with metadata.

Instructions

Auto-migrate API endpoint from .NET controller code to Postman

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
collectionIdYesPostman collection ID
controllerCodeYesFull C# controller code with XML comments
baseUrlYesBase URL (e.g., 'http://localhost:5020' or 'https://api.example.com')
apiVersionNoAPI version (e.g., '1.0') - extracted from [ApiVersion] attribute1.0
folderNameNoOptional: Folder name to organize requests (will be created if not exists)
folderIdNoOptional: Folder ID to organize requests. Takes precedence over folderName if both provided.
Behavior2/5

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions 'auto-migrate' but fails to detail critical behaviors: whether this is a read-only or write operation (implied mutation), how conflicts are handled, what happens to existing endpoints, authentication needs, rate limits, or error responses. This leaves significant gaps for an agent to understand the tool's impact.

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 a single, efficient sentence that front-loads the core purpose without unnecessary elaboration. Every word contributes directly to understanding the tool's function, making it appropriately sized and structured for quick comprehension.

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?

Given the complexity of a migration tool with 6 parameters, no annotations, and no output schema, the description is incomplete. It lacks details on behavioral traits, error handling, output format, and integration with sibling tools, leaving the agent with insufficient context to use it effectively beyond basic parameter passing.

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%, so the schema already documents all parameters thoroughly. The description adds no additional meaning beyond the schema, such as explaining relationships between parameters (e.g., folderName vs. folderId precedence) or usage examples. Baseline 3 is appropriate as the schema does the heavy lifting.

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 specific action ('auto-migrate') and resources involved ('.NET controller code to Postman API endpoint'), distinguishing it from sibling tools that perform individual operations like create_collection or update_request. It precisely communicates the tool's function without being vague or tautological.

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?

The description provides no guidance on when to use this tool versus alternatives like manually creating requests with create_request or organizing collections with create_folder. It lacks context about prerequisites, such as needing an existing Postman collection, or exclusions, like not handling non-.NET code.

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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