# Subagent Orchestration in Claude Skills: Implementation Guide and Examples

> Master subagent orchestration in Claude Skills. Learn how to delegate tasks to specialized sub-agents for complex workflows with our implementation guide and examples.

- Repository: [Composio/awesome-claude-skills](https://github.com/composiohq/awesome-claude-skills)
- Tags: how-to-guide
- Published: 2026-08-30

---

**Subagent orchestration in Claude Skills enables complex workflow coordination by allowing a parent skill to delegate tasks to specialized sub-agents through the `SubAgentOrchestrator` class, defined in [`skill.json`](https://github.com/ComposioHQ/awesome-claude-skills/blob/main/skill.json) manifests and implemented in the ComposioHQ/awesome-claude-skills repository.**

Claude Skills are composable units that extend Claude's capabilities beyond single-prompt interactions. When workflows become too complex for monolithic implementation, **subagent orchestration** allows developers to break tasks into discrete, manageable components that share state and execute sequentially. This pattern is implemented in the `ComposioHQ/awesome-claude-skills` repository through a dedicated orchestration layer that manages invocation, data flow, and error handling.

## How Subagent Orchestration Works

The orchestration layer coordinates multiple specialized agents through four distinct stages: definition, invocation, data transformation, and error management. Each stage is implemented through specific classes and configuration files in the skill architecture.

### Declaring Subagents in the Skill Manifest

Each skill defines its sub-agents in a [`skill.json`](https://github.com/ComposioHQ/awesome-claude-skills/blob/main/skill.json) manifest file located at the skill root. The manifest includes a `subagents` array that specifies each sub-skill name and its required parameters.

```json
{
  "name": "contract-assistant",
  "description": "Creates and summarizes contracts",
  "subagents": [
    {
      "name": "contract-draft-generator",
      "params": { "template": "nda" }
    },
    {
      "name": "clause-extractor",
      "params": { "sections": ["confidentiality", "termination"] }
    },
    {
      "name": "summary-writer",
      "params": {}
    }
  ]
}

```

### Initializing the SubAgentOrchestrator

The `SubAgentOrchestrator` class, implemented in [`skill_core/orchestrator.py`](https://github.com/ComposioHQ/awesome-claude-skills/blob/main/skill_core/orchestrator.py), serves as the central coordinator. It loads skill definitions and manages the execution lifecycle of all declared sub-agents.

```python
from skill_core.orchestrator import SubAgentOrchestrator

# Load the top-level skill definition

orchestrator = SubAgentOrchestrator.from_file(
    "skills/contract-assistant/skill.json"
)

# Run the whole workflow with a single higher-level call

result = orchestrator.run(
    input_data={"client": "Acme Corp", "partner": "Beta Ltd"}
)

print(result["summary"])

```

### Context Passing and Data Flow

The orchestrator maintains a shared **context** dictionary that propagates data between sub-agents. When `contract-draft-generator` completes execution, its return value automatically becomes available to subsequent agents like `clause-extractor`.

```python
def contract_draft_generator(params, context):
    template = params.get("template", "generic")
    # Generate a draft using Claude's text-generation capability

    draft = claude.complete(
        prompt=f"Write a {template.upper()} contract between {context['client']} and {context['partner']}."
    )
    return {"draft": draft}

```

Results from each sub-agent are captured, optionally transformed, and passed back to the orchestrator, which assembles the final response.

### Error Handling and Retry Logic

The orchestrator tracks the status of every sub-agent call through the execution pipeline. If a sub-agent fails, the system can retry the operation, fallback to a default implementation, or abort the entire workflow with a structured error message. This resilience pattern ensures that complex multi-step workflows fail gracefully or self-heal when possible.

## Key Source Files in the Architecture

Understanding the file structure helps developers navigate the implementation of subagent orchestration within the repository.

- **[`skill_core/orchestrator.py`](https://github.com/ComposioHQ/awesome-claude-skills/blob/main/skill_core/orchestrator.py)** – Contains the `SubAgentOrchestrator` class that implements core logic for loading sub-agents, invoking Claude, handling results, and managing retries.

- **[`skill-creator/scripts/package_skill.py`](https://github.com/ComposioHQ/awesome-claude-skills/blob/main/skill-creator/scripts/package_skill.py)** – Packages a skill including its sub-agent definitions, creating the distributable bundle that the orchestrator reads at runtime.

- **[`skills/contract-assistant/skill.json`](https://github.com/ComposioHQ/awesome-claude-skills/blob/main/skills/contract-assistant/skill.json)** – Sample manifest demonstrating how a top-level skill lists its sub-agents and passes initial parameters.

- **[`skills/contract-assistant/subagents/contract-draft-generator.py`](https://github.com/ComposioHQ/awesome-claude-skills/blob/main/skills/contract-assistant/subagents/contract-draft-generator.py)** – Example sub-agent implementation that generates contract drafts; references the shared context for dynamic content generation.

- **[`skills/contract-assistant/subagents/clause-extractor.py`](https://github.com/ComposioHQ/awesome-claude-skills/blob/main/skills/contract-assistant/subagents/clause-extractor.py)** – Example sub-agent that receives the draft from the previous step and extracts specific legal clauses, demonstrating sequential data dependency.

## Practical Benefits of Subagent Orchestration

This architectural pattern provides specific advantages for complex Claude implementations. **Workflow decomposition** allows developers to isolate concerns such as drafting, extraction, and summarization into testable units. **State management** happens automatically through the orchestrator's context passing, eliminating manual data marshaling between steps. **Modular deployment** enables teams to update individual sub-agents without redeploying entire skill suites, as defined in the packaging logic of [`package_skill.py`](https://github.com/ComposioHQ/awesome-claude-skills/blob/main/package_skill.py).

## Summary

- **Subagent orchestration** breaks complex Claude workflows into manageable, discrete skills coordinated by the `SubAgentOrchestrator` class.
- Configuration occurs in [`skill.json`](https://github.com/ComposioHQ/awesome-claude-skills/blob/main/skill.json) manifests located in each skill directory, specifying the `subagents` array and their parameters.
- The orchestrator in [`skill_core/orchestrator.py`](https://github.com/ComposioHQ/awesome-claude-skills/blob/main/skill_core/orchestrator.py) handles execution order, context sharing between agents, and error recovery strategies.
- Data flows automatically from one sub-agent to the next through a shared context dictionary, enabling sequential processing pipelines.
- The [`package_skill.py`](https://github.com/ComposioHQ/awesome-claude-skills/blob/main/package_skill.py) script bundles sub-agent definitions for distribution and runtime loading.

## Frequently Asked Questions

### What is the difference between a Claude Skill and a sub-agent?

A **Claude Skill** is a complete, deployable unit that appears in the skill registry and handles high-level user requests. A **sub-agent** is a specialized function or module that a skill calls to perform a specific task, such as data extraction or text generation. Sub-agents are not exposed directly to users; instead, the parent skill orchestrates them through the `SubAgentOrchestrator` to complete complex workflows.

### How does data pass between sub-agents in a workflow?

The `SubAgentOrchestrator` maintains a shared context dictionary that persists throughout the execution lifecycle. When a sub-agent function returns a result, the orchestrator merges that data into the context object. Subsequent sub-agents receive this updated context as a parameter, allowing them to access outputs from previous steps, as demonstrated in the [`contract-draft-generator.py`](https://github.com/ComposioHQ/awesome-claude-skills/blob/main/contract-draft-generator.py) to [`clause-extractor.py`](https://github.com/ComposioHQ/awesome-claude-skills/blob/main/clause-extractor.py) handoff.

### Can sub-agent orchestration handle failures in individual steps?

Yes, the orchestration layer includes robust error handling and retry mechanisms. As implemented in [`skill_core/orchestrator.py`](https://github.com/ComposioHQ/awesome-claude-skills/blob/main/skill_core/orchestrator.py), the system tracks the status of each sub-agent invocation. If a step fails, the orchestrator can retry the operation based on configuration, execute a fallback implementation, or terminate the workflow and return a structured error to the parent skill.

### Where are sub-agent definitions stored in the repository?

Sub-agent definitions are declared in the parent skill's [`skill.json`](https://github.com/ComposioHQ/awesome-claude-skills/blob/main/skill.json) manifest file, typically located at `skills/{skill-name}/skill.json`. The actual sub-agent implementations reside in a `subagents/` subdirectory within the skill folder, such as `skills/contract-assistant/subagents/`. The [`package_skill.py`](https://github.com/ComposioHQ/awesome-claude-skills/blob/main/package_skill.py) script processes these locations when creating distributable skill bundles.