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jserna0001

n8n-free-mcp

by jserna0001

Activate workflow

activate_workflow

Activate a workflow by ID to start running on its triggers. Enables immediate execution of n8n workflows.

Instructions

Activate a workflow (starts running on its triggers).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
idYesWorkflow ID
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 mentions that activation starts triggers, but does not disclose potential side effects (e.g., idempotency, permission requirements, or what happens if the workflow is already active). This is minimal for a mutation tool.

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, front-loaded sentence with no unnecessary words, earning every character.

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?

For a simple one-parameter tool with no output schema, the description is reasonably complete. However, it could mention prerequisites (e.g., workflow must be inactive) or that activation triggers execution immediately.

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 coverage is 100% for the single parameter 'id', described as 'Workflow ID'. The description adds no additional meaning beyond this, so baseline 3 is appropriate.

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 verb 'activate' and resource 'workflow', with the parenthetical explanation that it starts running on its triggers. This distinguishes it from siblings like 'deactivate_workflow'.

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 usage for activating an inactive workflow but does not explicitly state when to use it versus alternatives like 'deactivate_workflow' or provide any exclusions.

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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