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parallelworks

Parallel Works MCP Server

Official

run_workflow

Run a Parallel Works ACTIVATE workflow by name, optionally providing input variables as key-value pairs.

Instructions

Run a workflow with optional input parameters

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
inputsNoInput variables for the workflow (key-value pairs)
workflowYesWorkflow name
Install Server

TDQS

B3.1/5.0
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 only states the action and optional inputs, without mentioning side effects, whether the workflow runs synchronously or asynchronously, auth requirements, or what the response contains.

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

Conciseness4/5

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

The description is a single, front-loaded sentence with no redundancy. It is efficient but borderline under-specified; however, it still conveys the core action and parameter information without waste.

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?

For an execution tool with no output schema, annotations, or additional context, the description is too sparse. It does not explain what happens when a workflow is run, whether it returns a run ID, or any post-invocation behavior. This leaves significant gaps for an agent deciding to invoke it.

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% for both parameters. The description adds nothing beyond the schema; 'optional input parameters' merely restates the inputs property's description without providing examples, types, or usage nuances.

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 the specific verb 'run' with the resource 'workflow', clearly indicating execution. This distinguishes it from sibling tools like list_workflows and get_workflow, which are read-only operations.

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 given on when to use this tool versus the sibling tools. The description does not mention alternatives, exclusions, or prerequisites, leaving the agent to infer usage context solely from the tool name.

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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