phi-core 0.10.0

Simple, effective agent loop with tool execution and event streaming
Documentation 
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# Sub-agent configuration
# Demonstrates a parent agent that delegates to specialised sub-agents.
# Each sub-agent has its own model, tools, and system prompt.

# ── Parent agent ────────────────────────────────────────────────────────────

[agent.profile]
name = "orchestrator"
system_prompt = """You coordinate work between specialised sub-agents.
Use the researcher for information gathering and the code_writer for implementation."""
thinking_level = "medium"

# ── Default provider (parent agent uses this) ──────────────────────────────

[provider]
model = "claude-sonnet-4-20250514"
api_key = "${ANTHROPIC_API_KEY}"

# ── Sub-agents ──────────────────────────────────────────────────────────────

[[sub_agents.instances]]
name = "researcher"
description = "Gathers information from files and search results"
system_prompt = """You are a research assistant. Search thoroughly, summarise
findings concisely, and cite file paths or sources."""
model = "claude-sonnet-4-20250514"  # Can use the same or different model
max_turns = 20                      # Limit sub-agent turn budget
tools = ["search", "file_read"]     # Only the tools this sub-agent needs

[[sub_agents.instances]]
name = "code_writer"
description = "Writes and tests code changes"
system_prompt = """You are an expert coder. Make minimal, correct changes.
Always run tests after modifying code."""
model = "claude-sonnet-4-20250514"
max_turns = 30
tools = ["file_read", "file_write", "bash"]

# ── Execution limits (apply to parent agent) ────────────────────────────────

[execution]
max_turns = 50
max_cost = 10.0               # Combined budget for parent + sub-agents