Agentica Infrastructure Reference

Complete API specification for Agentica multi-agent coordination infrastructure.

When to Use

• Building multi-agent workflows with Agentica patterns
• Need exact constructor signatures for pattern classes
• Want to understand coordination database schema
• Implementing custom patterns using primitives
• Debugging agent tracking or orphan detection

Quick Reference

11 Pattern Classes

| Pattern | Purpose | Key Method |
|---------|---------|------------|
| Swarm | Parallel perspectives | .execute(query) |
| Pipeline | Sequential stages | .run(initial_state) |
| Hierarchical | Coordinator + specialists | .execute(task) |
| Jury | Voting consensus | .decide(return_type, question) |
| GeneratorCritic | Iterative refinement | .run(task) |
| CircuitBreaker | Failure fallback | .execute(query) |
| Adversarial | Debate + judge | .resolve(question) |
| ChainOfResponsibility | Route to handler | .process(query) |
| MapReduce | Fan out + reduce | .execute(query, chunks) |
| Blackboard | Shared state | .solve(query) |
| EventDriven | Event bus | .publish(event) |

Core Infrastructure

| Component | File | Purpose |
|-----------|------|---------|
| CoordinationDB | coordination.py | SQLite tracking |
| tracked_spawn | tracked_agent.py | Agent with tracking |
| HandoffAtom | handoff_atom.py | Universal handoff format |
| BlackboardCache | blackboard.py | Hot tier communication |
| MemoryService | memory_service.py | Core + Archival memory |
| create_claude_scope | claude_scope.py | Scope with file ops |

Primitives

| Primitive | Purpose |
|-----------|---------|
| Consensus | Voting (MAJORITY, UNANIMOUS, THRESHOLD) |
| Aggregator | Combine results (MERGE, CONCAT, BEST) |
| HandoffState | Structured agent handoff |
| build_premise | Structured premise builder |
| gather_fail_fast | TaskGroup-based parallel execution |

Full API Spec

See: API_SPEC.md in this skill directory

Usage Example

from scripts.agentica_patterns.patterns import Swarm, Jury
from scripts.agentica_patterns.primitives import ConsensusMode
from scripts.agentica_patterns.coordination import CoordinationDB
from scripts.agentica_patterns.tracked_agent import tracked_spawn

# Create tracking database
db = CoordinationDB(session_id="my-session")

# Swarm with tracking
swarm = Swarm(
    perspectives=["Security expert", "Performance expert"],
    db=db
)
result = await swarm.execute("Review this code")

# Jury with consensus
jury = Jury(
    num_jurors=3,
    consensus_mode=ConsensusMode.MAJORITY,
    premise="You evaluate code quality",
    db=db
)
verdict = await jury.decide(bool, "Is this code production ready?")

Location

API spec: .claude/skills/agentica-infrastructure/API_SPEC.md
Source: scripts/agentica_patterns/