IntentIO

Codename: The Reasoning Interface Version: 1.0 Status: Draft Strategic Alignment: Phase 2 (Logic & Reasoning) of the Machine-First Maturity Model.

1. Executive Summary

The Core Problem: Traditional APIs are designed for human developers, following the CRUD model (Create, Read, Update, Delete) which exposes data objects (e.g., GET /product/123). This works when a human controls the logic. However, AI agents do not "think" in objects; they think in goals, constraints, and actions. When an AI is forced to infer business rules from raw data objects, it often "guesses" the logic, leading to hallucinations (e.g., promising a refund that the policy forbids). The Solution: IntentIO is an Intent-Driven API Wrapper. It sits between legacy databases and AI agents, transforming data pipes into "Reasoning Surfaces". Instead of exposing state, it exposes capabilities and constraints. The Goal: To replace UX (optimizing for clicks) with RX (Reasoning Experience—optimizing for comprehension), ensuring the machine understands the world well enough to act without inventing it,.

2. User Personas

The AI Systems Architect (Primary): Needs to expose the company’s services (booking, buying, scheduling) to external agents (e.g., ChatGPT, Amazon Rufus) without risking unsafe actions.

The Partner Developer: Building an automated agent that needs to negotiate with the client's API without constant error handling.

The Governance Lead: Wants to ensure that business rules (e.g., "No cancellations within 24 hours") are enforced at the API definition level, not just in the UI code.

3. Core Value Proposition

From Objects to Intent: Shifts the API paradigm from "Here is a booking object" to "Determine whether this booking can be canceled".

Impossible to Misunderstand: Eliminates the need for the AI to "infer" rules. Constraints are explicit. If an action is impossible, the API explains why before the attempt is made.

Zero-Hallucination Logic: By providing the AI with a menu of "Valid Next Actions," we prevent it from attempting to execute invalid ones.

4. Functional Requirements

4.1. The Capability Endpoint (The "Menu")

Requirement: The system must expose a GET /capabilities or OPTIONS endpoint that returns not just supported methods, but contextual valid actions based on the current state.

Rationale: Machines need to know "What can I do next?".

Output Example: Instead of just returning booking data, IntentIO returns: {"allowed_actions": ["modify_dates", "add_baggage"], "prohibited_actions": ["cancel"]}.

4.2. Constraint Publication

Requirement: The API must publish Constraints as first-class citizens, not just return them as error messages after a failure.

Rationale: UX allows users to try and fail. RX requires machines to know the failure modes before they act to avoid hallucinating success.

Key Feature: Pre-computation of Constraints. (e.g., {"constraint": "cancellation_window_passed", "hard_stop": true}).

4.3. The Reasoning Surface (Querying Logic)

Requirement: The system must support "Hypothetical" queries (Simulation Mode).

Rationale: An AI needs to "think" before it commits. It needs to ask, "If I were to try X, would it work?" without actually doing X.

Functionality: A /simulate endpoint that runs business logic against a proposed action and returns the predicted outcome and any triggered rules.

4.4. Justification & Explanation

Requirement: When an action is refused or a query is answered, the API must return a structured Justification.

Rationale: Machine judgment is "justificatory". If the AI is to explain to a user why they can't have a refund, the API must provide the reasoning (e.g., policy_ref: "Section 4.2"), not just a 403 Forbidden code.

5. Technical Architecture & Schema

IntentIO wraps legacy REST/GraphQL endpoints to create a Reasoning Envelope.

Target JSON Schema (The "RX" Response):

{
  "entity_id": "booking_999",
  "current_state": "confirmed",
  "intent_surface": {
    "can_cancel": false,
    "can_reschedule": true,
    "reasoning": {
      "cancellation_blocked_by": {
        "rule_id": "policy_24h_window",
        "description": "Cancellations strictly prohibited within 24h of departure."
      }
    }
  },
  "next_valid_actions": [
    {
      "intent": "reschedule_flight",
      "endpoint": "POST /bookings/999/reschedule",
      "required_params": ["new_date"]
    }
  ]
}

6. Use Cases

Use Case A: The Travel Agent Bot

Problem (Legacy): A user asks a bot to cancel a flight. The bot calls GET /booking, sees a "Confirmed" status, and hallucinates that it can cancel. It tells the user "Done!", but the API call fails later.

IntentIO Solution: The bot calls GET /booking/intent. IntentIO returns can_cancel: false with the reason "Non-refundable fare".

Result: The bot correctly informs the user: "I cannot cancel this because it is a non-refundable fare, but I can help you reschedule."

Use Case B: The E-Commerce Compatibility Check

Problem (Legacy): An AI recommends a phone case for a specific phone model based on keyword matching (SEO logic). The case doesn't actually fit.

IntentIO Solution: The AI queries the product's Reasoning Surface: POST /compatibility/check with payload {"host_device": "iPhone 15"}.

Result: IntentIO returns {"compatible": false, "reason": "dimensions_mismatch"}. The AI excludes the product from the recommendation.

7. Success Metrics (KPIs)

1. Reasoning Success Rate: The percentage of API interactions where the AI agent successfully navigated the flow without triggering a 4xx client error (indicating it understood the constraints beforehand).

2. Hallucination Rate: Frequency of the AI promising an action (in chat logs) that the API subsequently rejected.

3. Schema Legibility: Measured by how easily external LLMs (like GPT-4) can correctly predict the valid next action solely by reading the API documentation (Target: 100% prediction accuracy).

8. Roadmap

Phase 1 (The Read Layer): Implement the intent_surface field on existing GET requests to expose "allowed actions" alongside data.

Phase 2 (The Simulation Layer): Build the /simulate endpoint to allow agents to test actions without commitment.

Phase 3 (The Governance Layer): Integrate with SafeState (Action Governor) to enforce state transitions during write operations.