Package index

Agent runtime

create_deep_agent()

Create a deep agent

context_budget()

Configure context budget behavior

as_chat_factory()

Convert a model input to a chat factory

deep_tool()

Define an agent tool

as_ellmer_tool()

Convert a deep tool to an ellmer tool

subagent()

Define a subagent

Backends and safety

memory_backend()

Create an in-memory virtual filesystem backend

filesystem_backend()

Create a local filesystem backend

composite_backend()

Create a composite virtual filesystem backend

rds_store_backend()

Create a durable RDS-backed virtual filesystem backend

rds_checkpointer()

Create an RDS checkpointer

fs_permission()

Create a filesystem permission rule

interrupt_config()

Configure a human-in-the-loop interrupt

decision_approve()

Human approval decision

decision_edit()

Human edit decision

decision_reject()

Human rejection decision

decision_respond()

Human response decision

local_dev_shell_tool()

Create an opt-in local development shell tool

Extensions

aisdk_tool()

Wrap an aisdk Agent as a deepagentsr tool

aisdk_subagent()

Wrap an aisdk Agent as a direct deepagentsr subagent

discover_skills()

Discover skills from directories

mcp_tools()

Return optional MCP-backed tools

rag_tool()

Create a retrieval tool from an R search function

rag_tools()

Return optional RAG tools

as_shinychat_stream()

Adapt an agent event stream for Shiny chat demos

Events

export_events_jsonl()

Export agent events as JSON Lines

read_events_jsonl()

Read a JSON Lines event trace

print(<deepagent_event_stream>)

Print an agent event stream

Testing helpers

fake_chat()

Create a deterministic fake chat model

assistant_message()

Create a scripted assistant message

assistant_tool_call()

Create a scripted assistant tool call