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05 / The emerging layer

New capability.
Same hard questions.

The next wave of AI tools works across code, knowledge, browsers and voice. Judge each one by the friction it genuinely removes.

Coding tools: review the change, not the confidence

AI coding assistants now extend beyond completing a line of code. Tools such as GitHub Copilot and Cursor can help explain repositories, propose edits and support multi-file work, depending on the product and plan. They are particularly useful for repetitive changes, test scaffolding and navigating unfamiliar code. They can also introduce plausible but incorrect assumptions at considerable speed.

Evaluate them on accepted changes that pass your normal review and test process. Measure review time, defects, security findings and maintainability alongside implementation speed. Do not use generated lines of code as a productivity metric. A smaller, clearer patch may be much more valuable than a large automated rewrite.

Restrict access to secrets and production credentials. Review repository indexing, retention, model-provider terms and organisation-level controls before enabling the tool. Run proposed commands in a sandbox where possible. Require explicit approval for installing dependencies, changing infrastructure or accessing external services; the development environment is a powerful tool surface.

Browser agents and voice systems need clear limits

Browser agents can interact with interfaces that lack convenient APIs. They may help transfer records, gather public information or prepare routine submissions. Their flexibility comes with fragility: page layouts change, sessions expire and visual elements can be misidentified. Use isolated browser profiles, domain allowlists and explicit confirmation before purchases, external messages or account changes.

For repeatable work, prefer a stable API when available. It offers clearer inputs, errors and permission boundaries. A browser agent can be a useful bridge for legacy systems, but should not silently become the only route through a critical business process. Keep a manual fallback and evidence of what was changed.

Voice AI combines speech recognition, conversational reasoning and speech generation. Potential uses include appointment handling and basic service triage. Test end-to-end latency, interruptions, accents, noisy environments and transfer to a person. Tell callers when they are interacting with AI, and assess applicable recording and privacy requirements before retaining audio. Natural-sounding speech does not establish identity; use a separate verification process for sensitive requests.

Interoperability helps. It does not remove trust decisions.

The Model Context Protocol, or MCP, standardises aspects of how AI applications connect to tools and resources. It can reduce bespoke integration work. It does not certify that a connected server is trustworthy, make every tool safe or replace authorisation. Review server provenance, permissions, deployment settings and update practices before granting access.

Tool categoryPrimary success measureRelease gate
CodingAccepted, tested changesReview and security checks
SearchCorrect, supported answersPermission and freshness tests
BrowserVerified task completionAction approval and recovery
VoiceCorrect resolution or handoffDisclosure and identity controls

Use a four-week evaluation with a named owner, a small user group and a fixed spending cap. Capture a baseline before introducing the tool. Record both time saved and new work created, including reviews, corrections and administration. Ask users which tasks became easier and which they stopped trusting.

Commercial models may combine seats, premium requests, minutes, storage and usage credits. Confirm overage behaviour and cancellation terms before rollout. Adopt only when the tool passes your quality and security gates and delivers a repeatable benefit. Keep promising but immature capabilities on a watchlist; deciding “not yet” is a valid technology strategy.

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