Agent-Native Onboarding: Tracing in 10 Lines (and Agents Can Sign Themselves Up)
Defensible AI

Agent-Native Onboarding: Tracing in 10 Lines (and Agents Can Sign Themselves Up)

Developer experience assumed a developer. Increasingly, the thing evaluating your platform is an agent — so discovery, scopes, and onboarding have to be machine-readable too. Here is what agent-native onboarding looks like, ten lines of code included.

AI
AIAgentree Team
Decision Infrastructure
August 1, 2026
10 min read

Agent-Native Onboarding: SDKs, Signed Agent Card, MCP and A2A

AIAgentree onboards both human developers and AI agents. Agents discover the platform through a signed agent card at /.well-known/agent-card.json — the standard discovery path — describing protocols and endpoints. Integration takes about ten lines with the Python SDK (pip install ai-agentree-sdk) or TypeScript SDK (npm install @ai-agentree/sdk): start a trace at a decision point, add inputs and reasoning steps, and seal the decision, producing a signed decision packet. The free tier is machine-readable and covers the trace lifecycle, MCP tools, and precedent search. Agents can also connect over MCP (append events, seal decisions, get packets, search precedents, check trace status) and delegate decisions over A2A. Agent self-registration is rolling out behind a feature flag. SDKs degrade gracefully and never crash the host agent on backend issues.

Share:
TL;DR

The next integrator that evaluates your stack may not be a person. Agent-native onboarding means discovery, scopes, and first-trace are all machine-readable:

  • Discovery — a signed agent card at /.well-known/agent-card.json, on the standard path conforming clients actually check.
  • Ten lines — start a trace, add inputs and steps, seal the decision. SDKs live on PyPI (ai-agentree-sdk) and npm (@ai-agentree/sdk).
  • Machine-readable free tier — trace lifecycle, MCP tools, precedent search: enough for an agent to prove value before a human ever looks.
  • Self-signup — agent self-registration is rolling out (feature-flagged), so evaluation doesn't wait for a human either.

Sometime recently, a coding agent somewhere read a platform's docs, evaluated the API, and wrote the integration — end to end, in minutes.

Was your platform legible to it? Not your landing page — your discovery endpoints, your scopes, your first-call experience.

Onboarding built only for human eyes now filters out a growing share of your integrators.

The Integrator Is Increasingly an Agent

The pattern is familiar to anyone shipping developer tools in 2026: a human states the goal — "add decision tracing to our claims agent" — and a coding agent does the discovery, reads the reference, and writes the integration. The human reviews a diff. Which means your real onboarding funnel has a new first step: can a machine find out what you are and what it may do, without a human clicking through your site?

For a decision-tracing platform the stakes double, because the runtime consumer is an agent too — the thing creating traces, sealing decisions and retrieving precedent is the customer's agent, not the customer. Both halves of the lifecycle need machine-native surfaces. (The conceptual grounding — what tracing captures and why — lives in What Is Decision Tracing?.)

Discovery: the Signed Agent Card

Agent-to-agent discovery has a standard answer: a card at a well-known URL. AIAgentree publishes a signed agent card at /.well-known/agent-card.json — the standard path current conforming clients check — describing what the service is, which protocols it speaks, and where its endpoints live. Signed, so a client can verify who it is talking to before sending anything.

The card is public and unauthenticated by design: discovery has to work before credentials exist. It sits alongside the other machine-discovery surfaces — the public key set at /.well-known/jwks.json that third parties use to verify signed packets offline, and the MCP tool descriptions an agent framework reads at connection time.

The Ten Lines

Integration is deliberately small. With the Python SDK (pip install ai-agentree-sdk) or the TypeScript SDK (npm install @ai-agentree/sdk), wrapping one decision point looks like this:

from aiagentree import AgentreeClient

client = AgentreeClient(api_key="ask_...", base_url="https://api.aiagentree.com", tenant_id="acme")

# Trace your agent's decision point
trace = client.start_trace(
    agent_id="claims-agent",
    workflow_id="claim_approval",
    entity_type="claim",
    entity_id="7031",
)
trace.add_input("claim_amount", 1200, source="claims_db")
trace.add_step("s1", title="Policy active, premiums current", category="evidence", confidence=0.95)
trace.add_step("s2", title="Amount below auto-approve threshold", category="policy", confidence=0.9)
trace.seal("d1", action="approved", confidence=0.92)

That is the whole first integration: open a trace at the decision point, record inputs and reasoning steps as they happen, seal the outcome. Sealing produces the signed decision packet — the bounded, verifiable object the rest of the defensibility story is built on. And the SDKs degrade gracefully: on backend issues they never raise into your agent's control flow, because a tracing outage must never become a production outage.

A Free Tier a Machine Can Read (and Sign Up For)

Human-oriented pricing pages answer "what does it cost?". An agent evaluating integration needs a different artifact: which scopes exist, which are open, and where the boundaries are — machine-readable, so the evaluation can happen programmatically. AIAgentree's free tier is defined that way, and it covers the parts an agent needs to prove value end to end:

  • The trace lifecycle — create traces, append events, seal decisions: the full write path.
  • MCP — the tools an agent framework connects to (see below).
  • Precedent search — retrieve how similar cases were decided, as bounded packets.

And the last human step is being removed too: agent self-registration is rolling out — currently feature-flagged in development, so treat it as rolling out, not generally available. The direction is plain: an agent discovers the card, registers, receives scoped credentials, and traces its first decision without a person in the loop. Human-readable plan details stay on the pricing page; the point is that a machine no longer needs them to start.

MCP and A2A: Meeting Agents Where They Run

Not every agent should carry an SDK. Two protocol surfaces cover the rest:

SurfaceWhat an agent gets
MCPTool-call access to the platform: append events, seal decisions, fetch packets, search precedents, check trace status — usable from any MCP-capable framework with an API key
A2AAgent-to-agent decision delegation: one agent hands a decision to another with scope and constraints, and the delegation itself becomes part of the record

The retrieval half deserves emphasis, because it is what makes tracing self-interested rather than altruistic: an agent that traces its decisions is also the agent that can later ask "how did we decide cases like this before?" and get back auditable packets instead of text fragments. That flywheel is the subject of What Is Decision Retrieval?.

"Ten Lines Can't Possibly Be Enough"

Correct — and that is the design. The ten lines are the capture surface, and capture is deliberately thin so it can live inside any agent loop without ceremony. Everything heavy happens on the platform side of the line: sealing, signing, tamper-evidence, packet assembly, Decision Record export, approval routing, precedent indexing.

That split is what makes the compliance story adoptable at all. If capturing a defensible record required rearchitecting the agent, nobody would do it before their first audit — and after the first audit is too late, because records cannot be created retroactively. Ten lines is the price at which teams instrument before they need to.

Diagnostic question: how many lines of code — honestly counted — sit between one of your production agents and its first sealed, signed decision record?

Sources & Further Reading

Frequently Asked Questions

How do AI agents discover AIAgentree programmatically?

Through a signed agent card published at /.well-known/agent-card.json — the standard well-known discovery path that conforming agent clients check. The card describes the service, its protocols and endpoints, and is signed so a client can verify authenticity before connecting. It is public and unauthenticated, because discovery must work before credentials exist.

How many lines of code does decision tracing integration take?

About ten for the first decision point: initialize the client, start a trace with the agent and workflow identifiers, add inputs and reasoning steps as the decision unfolds, and seal the outcome. Sealing produces a signed decision packet automatically. SDKs are on PyPI (ai-agentree-sdk) and npm (@ai-agentree/sdk).

What does the AIAgentree free tier include for agents?

The free tier is machine-readable and covers the trace lifecycle (create, append, seal), the MCP tools, and precedent search — enough for an agent to integrate, produce real sealed records, and retrieve prior decisions before any purchasing conversation happens. Current plan details are on the pricing page.

Can an AI agent sign itself up without a human?

Agent self-registration is rolling out — currently feature-flagged in development, not yet generally available. The intended flow: an agent discovers the signed card, registers itself, receives scoped credentials, and starts tracing without a person in the loop. Until it is generally available, a human creates the account and the agent takes over from there.

What MCP tools does AIAgentree expose?

Five: append events to a trace (creating one if needed), seal a decision, retrieve a Decision Packet, search precedents, and check trace status. Any MCP-capable agent framework can use them with an API key — no SDK required.

What happens to my agent if the tracing backend is unreachable?

Nothing — by design. The SDKs degrade gracefully and never raise into the host agent's control flow on backend issues. A tracing outage must never become a production outage; missing telemetry is a recoverable problem, a crashed agent is not.

Related Topics

Related Articles

AI

AIAgentree Team

Decision Infrastructure

The AIAgentree team is building decision tracing and retrieval infrastructure for AI agents. Our mission is to make AI reasoning visible, auditable, retrievable, and improvable.

Ten lines from now, your agent has receipts.

Install the SDK, wrap one decision point, and seal your first signed record on the free tier — no credit card, no sales call.

Start Tracing Free