arp-jarvis-atomic-nodes 0.3.5

First-party atomic node pack for the JARVIS stack (metadata + handlers).

JARVIS Atomic Nodes (Node Pack)

First-party “node pack” for the JARVIS stack. This package provides:

• NodeType metadata for Node Registry + Selection
• Atomic handler implementations for Atomic Executor

This is a trusted, in-process node pack (v0.x). It does not implement runtime code download.

Install

Metadata-only (safe for Node Registry):

python3 -m pip install arp-jarvis-atomic-nodes

Or explicitly:

python3 -m pip install "arp-jarvis-atomic-nodes[metadata]"

Runtime handlers (Atomic Executor):

python3 -m pip install "arp-jarvis-atomic-nodes[runtime]"

Usage

NodeType metadata (Node Registry)

from jarvis_atomic_nodes.catalog import node_types

node_type_list = node_types()

Handler registry (Atomic Executor)

from jarvis_atomic_nodes.handlers import handlers

handler_map = handlers(require_http=True)

Authoring nodes (LangChain-like)

from pydantic import BaseModel, HttpUrl
from jarvis_atomic_nodes.sdk import atomic_node, NodeContext

class WebFetchIn(BaseModel):
    url: HttpUrl

class WebFetchOut(BaseModel):
    status_code: int
    content_base64: str

@atomic_node(name="jarvis.web.fetch", side_effect="read")
async def web_fetch(inp: WebFetchIn, ctx: NodeContext) -> WebFetchOut:
    """Fetch a URL over HTTP(S) and return bytes."""
    resp = await ctx.http.get(str(inp.url))
    return WebFetchOut(status_code=resp.status_code, content_base64=resp.content)

Entry point discovery

This package exposes a NodePack entry point:

• group: jarvis.nodepacks
• name: jarvis.core
• object: jarvis_atomic_nodes.pack:core_pack

from jarvis_atomic_nodes.discovery import load_nodepacks, load_handlers, load_node_types

packs = load_nodepacks()
handlers = load_handlers()
node_types = load_node_types()

NodeType extensions metadata

Each NodeType emitted by this pack includes JARVIS metadata in NodeType.extensions, including:

• jarvis.pack_id / jarvis.pack_version (provenance)
• jarvis.node_name (stable node name)
• jarvis.side_effect, jarvis.trust_tier (governance hints)
• Optional: jarvis.egress_policy, jarvis.budget_hints, jarvis.tags

Node Registry stores these fields verbatim and Selection Service may use a subset to enrich candidate ranking.

Full cross-stack list: https://github.com/AgentRuntimeProtocol/BusinessDocs/blob/main/Business_Docs/JARVIS/Extensions.md.

Included nodes (v0.3.5 baseline)

Core:

• jarvis.core.echo
• jarvis.core.sleep
• jarvis.core.uuid4
• jarvis.core.time.now
• jarvis.core.hash.sha256

HTTP:

• jarvis.web.fetch