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GoCanvas MCP Server (read-only)

GoCanvas MCP Server (read-only)

by kbates97
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Remote

get_submission_value

Retrieve a specific value from a submission, such as a media field, using the submission GUID and value identifier.

Instructions

Retrieve a single Value from a Submission (e.g. a media field).

Args: submission_id: The Submission GUID. value_id: The identifier of the Value within the Submission.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "submission_id": "<submission_id>",
      "value_id": "<value_id>"
    },
    "name": "get_submission_value"
  }
}

Input Schema

NameRequiredDescriptionDefault
value_idYes
submission_idYes

Output Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

B3.4/5.0
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 only states 'Retrieve', indicating a read operation, but gives no details on authorization, rate limits, side effects, or what happens if the value does not exist.

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 very concise, consisting of two sentences and a parameter list. The purpose is front-loaded, and every sentence adds value. No redundant or extraneous information.

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

Completeness3/5

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

Given the tool's simplicity and the presence of an output schema, the description is minimally adequate. It covers the purpose and parameter list but lacks usage guidelines, behavioral details, or examples of when to use this tool.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, meaning the parameters have no descriptions in the schema. The description restates parameter names and says 'The Submission GUID' and 'The identifier of the Value within the Submission', adding minimal meaning beyond the names themselves. No format or constraints are specified.

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 uses a specific verb ('Retrieve') and clearly identifies the resource ('a single Value from a Submission'), with an example ('e.g. a media field'). This distinguishes it from sibling tools like get_submission (whole submission) and list_submissions (collection of submissions).

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 the tool is for retrieving a specific value within a submission, but it does not explicitly state when to use it over alternatives like get_submission or list_submissions. No when-not or exclusion criteria are provided.

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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