Constraint Brief
The governing constraint, competing hypotheses, evidence, contradictions, and material unknowns.
M87 Constraint Review · Diagnostic advisory
Before you commission another agent, automation, or AI workflow, determine whether it addresses the constraint that actually matters. M87 maps the affected decision or workflow, tests competing explanations, establishes the evidence, and gives you a defensible next move.
Appropriate when
The review is designed for a consequential decision whose business case, causal mechanism, or evidence is not yet defensible.
What you receive
Every material claim is identified as observed, reported, calculated, inferred, or unknown. Missing evidence is surfaced, never manufactured.
Representative scenario—not client work, a testimonial, or a claimed commercial result.
The governing constraint, competing hypotheses, evidence, contradictions, and material unknowns.
The baseline, primary outcome, leading indicator, guardrails, source of record, and attribution method.
No action, process correction, measurement, data repair, deterministic automation, AI assistance, or a bounded pilot.
Conservative, expected, and upside cases with assumptions and confidence exposed.
A recommendation stating what should happen next—and what remains unauthorized.
Decision gate
Approved evidence review, workflow and decision mapping, competing-hypothesis testing, measurement design, and the next decision.
Implementation, account changes, unapproved data access, recurring service, or external communication on your behalf.
Most reviews are completed within 10 business days and begin at $4,500. The final fixed fee reflects complexity, evidence burden, stakeholder count, and decision risk—not hours alone.

Accountable expertise
Every M87 Constraint Review is led by Mac McFall. His 16-year professional background spans hospitality management and culinary arts, alongside music production, audio engineering, and performance. The method structures the evidence; Mac remains accountable for the judgment.
Inspect public engineering work ↗M87 is a disciplined operating system, personally applied by an accountable expert.Request a fit review →
Engagement expectations
The fit review is free. It determines whether the decision is diagnosable and whether M87 is the right independent reviewer.
Fit submissions receive a response within two business days.
Remote, approximately 10 business days, beginning at $4,500.
The accountable decision owner and the people closest to the workflow and evidence.
A reviewable Decision Packet. Implementation remains a separate decision and authorization.
Fit intake · Approximately 5 minutes
Start with what happened, the result that matters, and the decision in front of you. “Unknown” is an acceptable answer. This does not authorize system access or implementation.