Block: Thinking Block — Zelaxy Docs

The Thinking block adds an explicit reasoning step to your workflow where the model outlines its thought process before proceeding. This can improve reasoning quality by encouraging step-by-step analysis on complex tasks.

Overview

Property	Value
Type	`thinking`
Category	`tools`
Color	`#181C1E`

When to Use

Improve reasoning quality on complex analysis or multi-step tasks before passing results to an Agent block
Make an AI's reasoning chain transparent and auditable in downstream blocks
Inject structured thinking instructions so a model approaches a problem in a specific way
Break ambiguous prompts into explicit thought steps before generating a final response
Add a reasoning gate in a workflow that routes or evaluates output based on what was concluded

Configuration

Thought Process / Instruction

The full text describing the step-by-step thinking process the model should follow. This is a required long-text field. Write it as a natural-language instruction — for example, "List each assumption, evaluate it, then state a conclusion."

Use {{blockName.field}} syntax to inject dynamic content from upstream blocks into this field.

Field id: thought Type: long-input Required: yes

Inputs & Outputs

Inputs: thought (string) — Thinking process instructions passed to the tool
Outputs: acknowledgedThought (string) — The thought that was processed and acknowledged by the tool

Tools

Thinking Tool (thinking_tool) — Processes a provided thought or instruction, making the acknowledged content available for subsequent steps in the workflow. POSTs the thought string to /api/tools/thinking and returns acknowledgedThought.

YAML Example

thinking_1:
  type: thinking
  name: "Thinking"
  inputs:
    thought: "Break the following request into clear sub-tasks, evaluate each one independently, then summarize the overall approach: {{starter.input}}"
  connections:
    outgoing:
      - target: agent_1

Thinking Block