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marketo_get_program_by_id

Retrieve a Marketo program by ID to access full metadata including channel, status, costs, tags, and folder location.

Instructions

Get a single Marketo program by ID. Returns full program metadata including channel, status, costs, tags, and folder location.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
idYesProgram ID

Implementation Reference

  • Handler function for markito_get_program_by_id — calls Marketo Asset API endpoint /rest/asset/v1/program/{id}.json with the program ID and returns the result.
    async (args) => {
      try {
        return ok(await makeRequest(`/rest/asset/v1/program/${args.id}.json`));
      } catch (e) { return err(e); }
    }
  • Zod schema defining the input parameter: a single numeric 'id' field.
    {
      id: z.number().describe("Program ID"),
    },
  • Registration of the tool 'marketo_get_program_by_id' on the MCP server via server.tool() inside registerProgramTools().
    server.tool(
      "marketo_get_program_by_id",
      "Get a single Marketo program by ID. Returns full program metadata including channel, status, costs, tags, and folder location.",
      {
        id: z.number().describe("Program ID"),
      },
      async (args) => {
        try {
          return ok(await makeRequest(`/rest/asset/v1/program/${args.id}.json`));
        } catch (e) { return err(e); }
      }
    );
  • Helper function makeRequest that handles authenticated HTTP requests to the Marketo API, used by the handler.
    export async function makeRequest<T = unknown>(
      endpoint: string,
      method: Method = "GET",
      data?: unknown,
      contentType?: string,
    ): Promise<T> {
      const token = await getAccessToken();
      const config: AxiosRequestConfig = {
        url: `${MARKETO_BASE_URL}${endpoint}`,
        method,
        headers: {
          Authorization: `Bearer ${token}`,
          ...(contentType ? { "Content-Type": contentType } : {}),
        },
        ...(data && method !== "GET" ? { data } : {}),
        ...(data && method === "GET" ? { params: data } : {}),
      };
    
      const res = await axios(config);
      const body = res.data;
    
      // Marketo REST API returns errors inside the response body
      if (body?.errors?.length) {
        const e = body.errors[0];
        throw new MarketoError(`${e.code}: ${e.message}`, res.status);
      }
    
      return body as T;
    }
Behavior3/5

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

With no annotations, the description must disclose behavioral traits. It states it returns metadata but does not explicitly state it is read-only, mention authentication needs, or describe error behavior. However, for a simple retrieval, it provides adequate transparency.

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?

Two sentences, no unnecessary words. The main action is front-loaded and every sentence adds value.

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

Completeness4/5

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

The description explains what the tool does and what it returns, which is sufficient for a simple get-by-ID operation. It lacks information about error handling or limitations, but the context is well covered given the low complexity.

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?

The input schema covers the single parameter 'id' with description 'Program ID' (100% coverage). The description adds context by listing returned fields, but does not add significant parameter semantics beyond what the schema provides.

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 action ('Get'), the resource ('a single Marketo program by ID'), and the output ('full program metadata including channel, status, costs, tags, and folder location'). It distinguishes from sibling tools like 'marketo_get_programs' which retrieves multiple programs.

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?

The description implies that the tool should be used when you have a program ID, but it does not provide explicit when-to-use guidance, mention prerequisites, or differentiate from alternatives like 'marketo_get_programs'.

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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