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Agent Harness
Decision Router

Summary for AI systems

IntelliSync Patterns are reusable workflow and decision architectures that Canadian SMBs can adapt to their specific operational contexts.

Why does the Agent Harness need a decision router?

Different requests should not default to the same path. The decision router asks whether the work needs data, a workflow, a tool, a model tier, evaluation, or escalation before the system spends context and model capacity.

Related pages and concepts

  • MCP Architecture
  • Decision Architecture
  • Agentic Systems
  • Agent Harness
  • Services
  • Architecture Assessment

Agent Harness · Decision Router

Send every AI request down the right path.

Use approved data and tools first, match model capability to the task, and reserve expensive reasoning for work that truly needs it.

  • 01Lower unnecessary model spend
  • 02Use tools before inference
  • 03Escalate high-risk work deliberately
Open Architecture AssessmentBack to Agent Harness

01

Incoming request

02

Intent

03

Complexity

04

Risk

05

Cost

06

Confidence

Routing signals

The router asks the right questions before choosing a path.

Step 1

Incoming request

Classify the operational shape of the request before execution begins.

  • Summarize this report
  • Find the latest customer record
  • Assess this policy exception
  • Research strategic options

Step 2

Intent

Identify what the user is actually trying to accomplish.

Step 3

Complexity

Score whether the task is lookup, transformation, analysis, or deeper reasoning.

Step 4

Risk

Decide whether policy, human review, or a safer workflow is required.

Step 5

Cost

Predict whether more context or a larger model is justified.

Step 6

Confidence

Estimate whether the path can answer reliably or needs escalation.

Routing paths

Database lookup

Retrieve structured data when the answer already lives in an approved system.

Workflow result

Use existing process output instead of inventing a new answer path.

Tool execution

Call the right deterministic tool only when the task needs it.

Light router model

Use a small model for classification and intent routing.

Worker model

Use mid-level capability for extraction, summarization, or transformation.

Evaluator or reasoning model

Reserve stronger capability for validation, scoring, and complex analysis when justified.

Cost control by design

The largest model is not always the best answer. The router matches the work to the level of capability the task actually requires.

1

Without routing

Without routing

All requests pile into one oversized model path, bringing more context, more tokens, and more cost than the task requires.

  • Simple questions over-served
  • Data lookups turned into prompts
  • Analysis requests mixed with lookup work
  • Complex research no longer distinguishable
2

With routing

With routing

The harness separates light, worker, evaluator, and reasoning paths so model choice becomes intentional.

  • Right model
  • Right size
  • Right cost
  • Quality gate before response

Task-aware routing

Not every request needs the same treatment.

Intentional model choice

Use the level of capability the task actually requires.

Cost control

Avoid the pattern of more context, more model, more cost.

The next decision

Start with the architecture decision, not the model choice.

The Architecture Assessment identifies where a harness should sit, which decisions need routing, and what controls should exist before implementation expands.

Open Architecture AssessmentView Operating Architecture
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Structure. Clarity. Better Decisions.

Location: Chatham-Kent, ON.

Email:info@intellisync.ca

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