AI Harness Engineering
Reusable method packs and run patterns that make agent-assisted work scoped, reviewable, and evidence-backed.
Work completed as part of my role at Whitelabel Co.
The operating layer around agent work
A harness is not the agent and it is not the runtime. It is the method around the work: what evidence to gather, what policies apply, what artifacts must exist, where a human approves the next step, and how readiness is proven afterward.
Harness or method
The reusable instructions, contracts, policies, templates, gates, and scorecards for a class of work.
Agent or runtime
The system that actually executes model calls, tools, sessions, memory, retries, credentials, queues, or schedules.
Human approval
The explicit decision point where a person approves scope, implementation, risk acceptance, or release.
Outcome proof
The artifacts, checks, source links, command output, screenshots, and scorecard that support a readiness claim.
Preview the harness portfolio
These are representative examples, not the full set. Some have been used on client builds; others are validated packages or reusable patterns until a target run produces its own evidence.
Greenfield Harness
Guides Figma-first Next.js and Tailwind builds through scope, research, planning, approved implementation, localhost checks, and a scorecard.
SEO/AEO Harness
A portable method pack for auditing routes, canonicals, structured data, content, crawler policy, AI-mediated discovery, measurement, and readiness.
Rebrand Harness
A governed kit for product rebrands with token source-of-truth, evidence-typed values, human gates, and parity checks across product surfaces.
How a real run proves readiness
- 01
Scope the run
A human defines the target, goal, access level, owned paths, constraints, and stopping rules.
- 02
Gather evidence
The agent or engineer collects source material, repo context, live observations, and known risks against the selected method.
- 03
Plan the work
The run produces a written plan with proposed changes, verification scope, open questions, and approval needs.
- 04Human gate
Human approval gate
A person approves, redirects, narrows, or stops the run before any implementation happens.
- 05
Approved execution
Agents or engineers make only the authorized changes, inside the allowed paths, with write records.
- 06
Independent checks
Verification re-fetches, tests, compares, or reviews the result separately from the person or agent that made the change.
- 07
Scorecard
A durable scorecard records pass, fail, cannot-verify, evidence links, and remaining risks. The final summary is not proof.
- 08Verified
Readiness verdict
The run ends with a readiness class based on evidence, not optimism. Missing capabilities stay visible.
What I can claim
- Verified client-use claim: the Greenfield Harness pattern has been used by multiple engineers and agents on customer-facing Next.js + TypeScript builds; select builds moved from design to production in under two weeks.
- Verified package claim: the SEO/AEO Harness has source contracts, skills, workflow, fixtures, validators, scorecard semantics, and handoff docs. That proves method-pack integrity, not rankings, index coverage, or AI citations for a target site.
- Applied Rebrand Harness pattern: used across a multi-page client marketing site and web app dashboard to guide brand-system migration work across real product surfaces.