Pipeline YAML Reference

Complete reference for the pipeline definition format.

Top-Level Fields

id: string              # Unique pipeline identifier
name: string            # Display name
version: string         # Semantic version
description: string     # Pipeline description

defaults:               # Default values applied to all steps
  model: string         # Default LLM model
  tools: [string]       # Default tool list
  maxRetries: number    # Default retry count (default: 0)
  timeout: number       # Default timeout in seconds

agents:                 # Agent declarations
  - id: string
    name: string
    persona: string     # Path to persona files
    model: string       # Override default model
    tools: [string]     # Override default tools

steps:                  # Pipeline step definitions
  - ...

Step Fields

- id: string            # Unique step identifier (e.g., SPEC, DESIGN)
  agent: string         # Agent ID that handles this step

  input: |              # Prompt template (supports {{variables}} and {% if %})
    You are the Product Owner.
    Task: {{task_description}}

  outputs:              # Named outputs the agent produces
    - product_brief
    - requirements_doc

  # Flow control (use exactly one)
  onComplete: string    # Next step ID when this step succeeds
  onResult:             # Conditional routing based on agent output
    APPROVED:
      goto: string      # Go to step
    CHANGES_REQUESTED:
      goto: string
      notify:           # Optional notification
        agent: string
        message: string

  # Loop execution
  loop:
    over: string        # Output name containing JSON array to iterate
    onEachComplete: string  # Step to run after each item
    onAllComplete: string   # Step to run after all items

  # Overrides
  model: string         # Override default model for this step
  timeout: number       # Override default timeout

  # Structured output (mutually exclusive with tools)
  outputSchema:
    name: string
    strict: boolean
    schema:             # JSON Schema object
      type: object
      properties: ...
      required: [...]

Template Variables

Available in input fields:

Variable	Source
`{{task_description}}`	From the run creation request
`{{human_context}}`	Optional human guidance from run request
`{{project_name}}`	Project name from run request
`{{output_name}}`	Any named output from a previous step
`{{current_item}}`	Current item in a loop iteration
`{{completed_items}}`	JSON array of completed loop items
`{{progress_file}}`	Path to loop progress tracking file

Jinja2 conditionals:

input: |
  {% if review_feedback %}
  Address this feedback: {{review_feedback}}
  {% endif %}

Result Routing

The onResult field maps agent output values to step transitions:

onResult:
  APPROVED:
    goto: TEST
  CHANGES_REQUESTED:
    goto: IMPLEMENT
  FAIL:
    goto: FIX
    notify:
      agent: eric
      message: "Test failed, needs investigation"

The agent writes the result value to a file named {OUTPUT}_RESULT.txt (e.g., REVIEW_RESULT.txt containing APPROVED).

Loop Result Routing

Within a loop, use continueLoop: true to advance to the next item:

onResult:
  PASS:
    continueLoop: true    # Move to next loop item
  FAIL:
    goto: IMPLEMENT       # Go back to fix

Available Tools

Tools that can be listed in the tools array:

Tool	Description
`read`	Read files from the workspace
`write`	Write files to the workspace
`edit`	Edit files with search/replace
`bash`	Execute shell commands
`grep`	Search file contents
`find`	Find files by pattern
`ls`	List directory contents
`web_search`	Search the web (via research tool)

Agents also have access to built-in tools (memory, messaging, project management) that are always available regardless of the tools list.

Configuration