What Is Machine Contract Optimisation (MCO)?

Machine Contract Optimisation (MCO) is our working term for improving the machine-facing representation of a service so that an autonomous buyer can correctly understand, classify, compare and select it.

It emerged from a practical Atinamos experiment rather than from a branding exercise.

The observation that led to MCO

Atinamos Render Check remained broadly the same underlying service while its marketplace representation changed. We improved the service name, discovery terms, capability description, result fields and instructions for consuming its asynchronous result.

The important result was not that the listing “looked better”. The buyer's machine judgement changed. Terms such as website testing, browser testing, website verification, deployment check and QA materially affected discovery and ranking.

This suggested that a machine-readable service description is not passive documentation. It is part of the commercial interface an autonomous buyer reasons over.

Working definition

MCO asks whether the machine contract makes sufficiently clear what the service does, which tasks it is appropriate for, price, input/output schemas, synchronous or asynchronous behaviour, status/polling mechanism, failure conditions, returned evidence and operational constraints.

MCO is not SEO

SEO primarily concerns discovery and presentation within search engines for human-facing content. MCO concerns machine purchasing decisions. Discovery is one part of it, but the stronger form is post-discovery understanding and selection.

MCO is not verification

A well-written machine contract is still a claim made by the seller. MCO can improve clarity and fit. It cannot prove that the service actually behaves as described.

MCO helps an agent decide what to buy. Independent verification helps determine whether that decision was justified.

MCO creates a verification target

The clearer the machine contract, the more testable the claim becomes. If a service clearly states method, schema, price, network, output and SLA, an independent verifier can compare reality against explicit assertions rather than vague marketing language.

The machine-buying model

Discovery → MCO-informed selection → Evidence → Buyer risk policy → Payment → Execution → Independent verification → Evidence history

MCO is not the payment authority, wallet policy, verification system or reputation layer. It sits earlier in the chain: it improves what the buyer understands before deciding.

What we do not know yet

We do not yet know whether MCO will become a useful general term outside Atinamos, which metadata patterns most strongly affect different buyer systems, or how quickly marketplaces will standardise discovery and service schemas.