Vertical Development Quickstart¶

Create domain-specific AI assistants for Victor.

What Are Verticals?¶

Verticals are domain-specialized configurations that define:
- Tools - Which capabilities the assistant can use
- Prompts - Domain expertise and behavioral guidelines
- Workflows - Multi-step processes for complex tasks

Built-in Verticals¶

Vertical	Tools	Use Case
coding	30+	Code analysis, refactoring, testing
research	9	Web search, synthesis, citations
devops	13	Docker, CI/CD, infrastructure
data_analysis	11	Pandas, visualization, statistics
rag	10	Document retrieval, vector search

Quick Start¶

1. Define an SDK-First Vertical¶

# my_vertical/assistant.py
from victor_contracts import ToolNames, ToolRequirement, VerticalBase, register_vertical


@register_vertical(
    name="my-vertical",
    version="0.1.0",
    min_framework_version=">=0.6.0",
    plugin_namespace="my_vertical",
)
class MyVertical(VerticalBase):
    name = "my_vertical"
    description = "Domain-specific assistant"
    version = "0.1.0"

    @classmethod
    def get_name(cls) -> str:
        return cls.name

    @classmethod
    def get_description(cls) -> str:
        return cls.description

    @classmethod
    def get_tool_requirements(cls) -> list[ToolRequirement]:
        return [
            ToolRequirement(ToolNames.READ, purpose="inspect project files"),
            ToolRequirement(ToolNames.WRITE, required=False, purpose="apply changes"),
            ToolRequirement(ToolNames.SHELL, required=False, purpose="run checks"),
        ]

    @classmethod
    def get_tools(cls) -> list[str]:
        return [requirement.tool_name for requirement in cls.get_tool_requirements()]

    @classmethod
    def get_system_prompt(cls) -> str:
        return "You are an expert in..."

2. Add a Thin Plugin Wrapper¶

# my_vertical/__init__.py
from victor_contracts import PluginContext, VictorPlugin

from my_vertical.assistant import MyVertical


class MyVerticalPlugin(VictorPlugin):
    @property
    def name(self) -> str:
        return "my-vertical"

    def register(self, context: PluginContext) -> None:
        context.register_vertical(MyVertical)

3. Publish the Canonical Entry Point¶

# pyproject.toml
[project.entry-points."victor.plugins"]
my-vertical = "my_vertical:plugin"

4. Install and Use¶

pip install -e .
victor chat --vertical my_vertical

Vertical Architecture¶

The vertical-contract diagram shows the
shared contract surface and example domains. The methods below describe authoring requirements.

Extension Points¶

Method	Protocol	Purpose
`get_middleware()`	MiddlewareProtocol	Tool execution hooks
`get_safety_extension()`	SafetyExtensionProtocol	Dangerous operations
`get_workflow_provider()`	WorkflowProviderProtocol	YAML workflows
`get_team_specs()`	TeamSpecProviderProtocol	Multi-agent teams
`get_prompt_contributor()`	PromptContributorProtocol	Task-type hints

Common Patterns¶

Single-Stage Vertical¶

class SimpleVertical(VerticalBase):
    def get_stages(cls):
        return {"SIMPLE": StageDefinition(
            name="SIMPLE",
            description="Simple single-stage workflow",
            tools={"read", "write"},
            keywords=[],
            next_stages=set(),
        )}

Multi-Stage Vertical¶

---
title: Example security-vertical stages
---
%%{init: {"theme":"base","themeVariables":{"primaryColor":"#E8EFF7","primaryTextColor":"#17324D","primaryBorderColor":"#456987","lineColor":"#456987","fontFamily":"Arial"}}}%%
stateDiagram-v2
    [*] --> INITIAL
    INITIAL --> RECONNAISSANCE: next configured stage
    RECONNAISSANCE --> ANALYSIS: next configured stage
    ANALYSIS --> REMEDIATION: next configured stage
    REMEDIATION --> VERIFICATION: next configured stage
    VERIFICATION --> REPORTING: next configured stage
    REPORTING --> [*]

YAML Workflow¶

# victor/myvertical/workflows/task.yaml
workflows:
  task_workflow:
    nodes:
      - id: analyze
        type: agent
        role: analyst
        goal: "Analyze the request"
        next: [execute]

      - id: execute
        type: compute
        handler: my_handler
        next: []

Tool Selection¶

Tool Category	Tools	Use Case
Filesystem	read, write, edit, grep	File operations
Search	code_search, symbol, refs	Code navigation
Git	git_status, git_log, git_commit	Version control
Shell	shell, python	Execution
Web	web_search, web_fetch	Network requests

Testing Checklist¶

Vertical inherits from victor_contracts.VerticalBase
Implements get_tools() - returns List[str]
Implements get_system_prompt() - returns str
Tools list is non-empty
System prompt is domain-specific
Configuration loads without errors

External Packages¶

External packages should publish a VictorPlugin under the canonical
victor.plugins entry-point group:

# pyproject.toml
[project.entry-points."victor.plugins"]
myvertical = "victor_myvertical:plugin"

Reference¶

Topic	Link
Complete guide	Vertical Development Guide
Workflow DSL	Workflow Development
Tool catalog	Tool Reference