Claude Implementation Partner Due Diligence: 12 Evidence Checks Before You Hire

Choosing a Claude implementation partner is not a contest between logo walls. It is a decision about who will design, build, test, and hand over a system that can read sensitive context, call tools, change records, and create ongoing operating cost.

Anthropic's current Services Track gives buyers better shortlist evidence than a generic partner badge. Its published structure considers active certified practitioners, customers running Claude in production, and public customer references. The public directory also exposes partner tier and service filters. Those signals matter, but they do not answer the buyer's final question: can this named team deliver this scoped system inside our controls?

This guide provides an original evidence-to-contract model. It uses 12 checks, pass-fail gates, a weighted score, and a worked example so procurement can compare claims consistently.

Separate measured facts, external evidence, and judgment

• Measured first-party search evidence: unavailable. Claude Certified Engineers has no configured Search Console or GA4 property, so this is a low-data editorial experiment rather than a claim of measured demand.
• Current external evidence: Anthropic publishes Services Track criteria and a partner directory. NIST's AI RMF calls for policies addressing third-party AI and supply-chain risks, including contingency processes. CISA recommends evaluating product security before procurement, translating requirements into contracts, and monitoring outcomes after purchase.
• Buyer judgment: the weights, gates, evidence grades, timelines, and contract mapping below are a proposed decision model. They are not Anthropic, NIST, or CISA requirements.

Specialist review: Dhruv Khatri is the named delivery and procurement reviewer. Review is requested and pending. The scorecard is review-ready but should be adapted with legal, security, and regulatory owners before use in a live procurement.

Start with a one-page buying case

Do not ask firms to define the problem they are competing to sell. Write a one-page case first:

• the workflow and current owner;
• weekly volume, exception rate, and baseline cost or handling time;
• users and people affected by failures;
• data classes and systems of record;
• intended Claude surface: API, Bedrock, Vertex, Claude Code, Cowork, or another approved route;
• reversible and irreversible actions;
• one primary success metric and two guardrails;
• launch, support, and handoff expectations;
• the constraint that would stop the project.

Send the same case to every finalist. A firm that changes the scope before it understands exceptions, data, and acceptance is showing you its delivery model.

Apply five pass-fail gates before scoring

A weighted score can hide a fatal risk. A vendor should not compensate for missing ownership with a better slide deck.

If a gate fails, reject or require a written remediation before commercial comparison.

The 12-check evidence-to-contract matrix

Score each check from 0 to 4: 0 means no evidence, 1 means a claim, 2 means a sample artifact, 3 means a verified relevant example, and 4 means verified evidence plus a binding delivery or contract commitment.

The weights total 100%. They are suitable for a production workflow build where security and measurable quality matter most. Change them before issuing the evaluation if your buying case is primarily enablement, a readiness assessment, or staff augmentation.

Calculate the score without hiding uncertainty

For each check, multiply the evidence grade by its weight, divide by four, and add the results.

weighted points = evidence grade (0 to 4) x weight / 4
total score = sum of weighted points

Use these decision bands only after all gates pass:

• 80 to 100: strong evidence, proceed to commercial and legal closure;
• 65 to 79: viable with named remediation in the SOW;
• 50 to 64: substantial evidence gap, run a paid discovery or reject;
• below 50: reject.

Do not give a 3 or 4 because a deliverable looks polished. A 3 requires verification against a relevant example. A 4 requires that verified capability to become a commitment for your engagement.

Worked example

Two firms pass the five gates.

Firm A has a higher Services Track tier, strong public stories, and 100 certified practitioners. The proposed team is still unnamed, the evaluation plan is generic, and operating cost is missing. After evidence grading, it scores 68.

Firm B is smaller and has fewer public stories. It names the architect and two engineers, demonstrates a similar Bedrock deployment with the operator present, provides a buyer-owned evaluation example, and puts repository custody, acceptance thresholds, and handoff rehearsal into the SOW. It scores 84.

The model selects Firm B. This does not mean partner tier is irrelevant. Tier helped create the shortlist. Engagement-specific evidence made the final decision.

Ask questions that expose operating experience

Replace broad questions with evidence prompts:

• "Show us one production failure from a similar system, how it was detected, and what changed afterward."
• "Which action in our workflow should Claude never perform without a human, and where is that control enforced?"
• "Walk through the token, data, and log path for one real request."
• "Show how an evaluation failure blocks a release and who can override it."
• "What moves our cost per successful task by 50%, and which assumption will you measure first?"
• "Have the person who will inherit on-call explain the month-seven change process."
• "Show the repository state we receive if the engagement stops next Friday."

Specific evidence is harder to rehearse than confident language.

Translate evidence into the contract

CISA's procurement guidance makes an important operational point: questions before purchase should become requirements during purchase and ongoing assessment afterward. For a Claude implementation, map the winning evidence into terms.

Have counsel adapt these ideas to the governing law and risk profile. This article is a decision framework, not legal advice.

Run the evaluation in ten business days

1. Days 1 and 2: finalize the buying case, weights, gates, and evidence request.
2. Days 3 and 4: verify directory standing and named-team credentials, then review written artifacts.
3. Days 5 and 6: run one working session per finalist on the same workflow and failure case.
4. Days 7 and 8: speak with operators, score evidence independently, and reconcile differences.
5. Day 9: send remediation items and draft SOW consequences to the preferred firm.
6. Day 10: make the decision, preserve the scorecard, and assign owners for unresolved conditions.

A short process works only when the buyer has a clear case and the firms provide inspectable evidence. If a regulated review or complex data transfer needs more time, extend the control review, not the period spent watching presentations.

Red flags that deserve a stop

• Certification is presented as a guarantee rather than a capability baseline.
• The team that joins technical diligence is not the team named for delivery.
• Production means a private demo with no operator, incident, or maintenance history.
• Security is postponed until after the prototype.
• The evaluation dataset belongs to the vendor and cannot be exported.
• Prompts, MCP servers, or orchestration remain on a platform the buyer cannot operate.
• Acceptance is "stakeholder satisfaction" with no thresholds or failure slices.
• Support begins after launch, but no one owns the first production incident.
• A low fixed fee depends on undefined change requests.
• The exit plan is a document dump rather than a rehearsed transfer.

Make the decision auditable

Keep the buying case, gates, evidence links, reference notes, individual scores, reconciliation record, risk acceptances, and final contract mapping together. NIST's AI RMF emphasizes documented roles, third-party risk processes, monitoring, and contingency planning. An auditable decision makes those ideas concrete before the first model call reaches production.

Use the Claude engineer interview scorecard to evaluate named individuals, Audit vs Build vs Embedded to confirm the engagement shape, and IP ownership when a vendor builds your Claude agent to close the custody terms.

Claude Certified Engineers can help a buyer define the capability baseline, review the named team, and turn delivery assurance into acceptance evidence. The goal is not to prove that one badge is best. It is to choose a team whose claims can survive verification, delivery, and handoff.