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srikanth-paladugula

Dynamics 365 MCP Server

create-account

Create new accounts in Dynamics 365 to manage customer data and relationships within the CRM system.

Instructions

Create a new account in Dynamics 365

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
accountDataYes

Implementation Reference

  • Full registration of the 'create-account' MCP tool, including description, minimal input schema allowing any accountData object, and the handler function that calls the Dynamics365 helper and formats the result as text content.
    // Register the "create-account" tool
    server.tool(
      "create-account",
      "Create a new account in Dynamics 365",
      { accountData: z.object({}) },
      async (params) => {
        try {
          const { accountData } = params;
          const response = await d365.createAccount(accountData);
          return {
            content: [
              {
                type: "text",
                text: JSON.stringify(response, null, 2),
              },
            ],
          };
        } catch (error) {
          return {
            content: [
              {
                type: "text",
                text: `Error: ${
                  error instanceof Error ? error.message : "Unknown error"
                }, please check your input and try again.`,
              },
            ],
            isError: true,
          };
        }
      }
    );
  • Helper method in the Dynamics365 class that validates input and makes a POST API request to create a new account entity in Dynamics 365 Web API.
    public async createAccount(accountData: any): Promise<any> {
      if (!accountData) {
        throw new Error("Account data is required to create an account.");
      }
    
      const endpoint = "api/data/v9.2/accounts";
      return this.makeApiRequest(endpoint, "POST", accountData);
    }
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 states 'Create' implies a write operation, but lacks details on permissions, side effects (e.g., if it overwrites existing accounts), error handling, or response format. This is inadequate for a mutation tool with zero annotation coverage.

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, direct sentence with no wasted words, making it highly concise and front-loaded. It efficiently communicates the core action without unnecessary elaboration.

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 creation tool with no annotations, 0% schema coverage, no output schema, and a nested object parameter, the description is insufficient. It lacks details on parameter semantics, behavioral traits, and expected outcomes, leaving significant gaps for the agent to operate effectively.

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?

The input schema has 1 parameter ('accountData') with 0% description coverage, and the tool description provides no information about what 'accountData' should contain (e.g., required fields like name, email, or structure). This leaves the parameter completely undocumented, failing to compensate for the schema gap.

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

Purpose4/5

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

The description clearly states the action ('Create') and the resource ('a new account in Dynamics 365'), making the purpose understandable. It distinguishes from siblings like 'fetch-accounts' (read) and 'update-account' (modify), but doesn't explicitly differentiate from other potential creation tools, keeping it at a 4 rather than a 5.

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 is provided on when to use this tool versus alternatives like 'update-account' or prerequisites for account creation. The description merely states what it does without context, leaving the agent to infer usage scenarios.

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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