A Go-or-No-Go Pilot Plan for a Local Retrieval-augmented Knowledge System

The direct answer

Use a bounded slice to test whether “sources and access classes are inventoried” holds, make “restricted documents placed in a shared index” a stop case, and leave expansion to the evaluation owner.

For a local retrieval-augmented knowledge system, the relevant audience is teams that need answers grounded in owned documents while keeping the retrieval and model path inside their infrastructure. The decision should cover source inventory, access classification, parsing, chunking, indexing, retrieval, answer generation, citation checks, evaluation, and refresh. The supplied boundary starts with approved documents or data exports, access rules, answer use cases, and evaluation examples and ends with a local-model RAG system checked by a QA agent, presented in reviewable form.

Local deployment reduces some egress paths but does not make the data correct, the retrieval complete, or the answer safe. Access control, backups, logs, and operators remain part of the threat model.

Write a pilot charter that can return no

Choose the riskiest assumptions

Start with the assumptions behind “sources and access classes are inventoried” and “retrieval permissions match source permissions”.

Include “restricted documents placed in a shared index” and “retrieval evaluated only by answer fluency” as bounded negative fixtures.

Freeze a comparison baseline

The comparison asks whether “answers cite claim-level evidence” holds without weakening the authority or evidence rules.

Run the canary as a sequence of gates

1. Confirm that the data owner still authorizes the charter.
2. Verify the supplied boundary matches approved documents or data exports, access rules, answer use cases, and evaluation examples.
3. Exercise the normal path and inspect whether “sources and access classes are inventoried” holds.
4. Run the failure case “stale chunks surviving source deletion” without widening authority.
5. Compare the candidate and baseline evidence for “deletion and refresh propagate to the index”.
6. Ask the evaluation owner to record go, revise, or stop.

Use explicit decision outcomes

Prove rollback before expansion

If the failure case “restricted documents placed in a shared index” occurs, stop writes, capture the live state, and compare it with the manifest before rollback.

Close the pilot with a bounded claim

A pilot is only a demonstration when it cannot stop for “restricted documents placed in a shared index” or withhold expansion after the criterion “sources and access classes are inventoried” fails.

A passing result supports only the tested slice of a local retrieval-augmented knowledge system.

How the sources bound the pilot plan decision

For a local retrieval-augmented knowledge system, the live catalog limits the offer to two elements. The supplied boundary is approved documents or data exports, access rules, answer use cases, and evaluation examples. The catalog names the deliverable as a local-model RAG system checked by a QA agent. It cannot establish whether “sources and access classes are inventoried” holds in the buyer's environment.

Connect those narrow roles to a local fixture for “retrieval evaluated only by answer fluency” rather than treating citation status as a pass.

For a local retrieval-augmented knowledge system, limit the conclusion to the documented workflow and let the privacy owner retain the current source-to-claim map. The evaluation owner should revisit the acceptance statement “retrieval permissions match source permissions” when supporting evidence expires.

Product-specific pilot plan review drills

These drills connect a local retrieval-augmented knowledge system to concrete inputs, failures, acceptance statements, and owners. For a local retrieval-augmented knowledge system, the drills bound the canary, stop rule, and expansion decision.

The pilot boundary for a local retrieval-augmented knowledge system records approved documents or data exports, access rules, answer use cases, and evaluation examples but exercises only synthetic, non-secret markers. The data owner confirms that no enqueue, send, write, or external call may exit the canary fixture throughout or after the pilot.

Charter boundary

Ask how the charter boundary review handles the failure case “restricted documents placed in a shared index”. The data owner freezes the local portion of source inventory, access classification, parsing, chunking, indexing, retrieval, answer generation, citation checks, evaluation, and refresh before drawing a conclusion.

Pair a scope record covering approved documents or data exports, access rules, answer use cases, and evaluation examples with a direct observation of whether “retrieval permissions match source permissions” holds. The privacy owner retains the source and result together.

The evaluation owner bases the outcome for the charter boundary review on “retrieval permissions match source permissions” and keeps a local-model RAG system checked by a QA agent bounded to that finding. The charter boundary review advances with pass for support, fail for contradiction, and hold for unresolved evidence.

Repeat the judgment when the workflow boundary for source inventory, access classification, parsing, chunking, indexing, retrieval, answer generation, citation checks, evaluation, and refresh adds a new handoff or removes the rollback state used in the test.

Risk hypothesis

At the boundary covered by the risk hypothesis review, introduce an authorized fixture showing “retrieval evaluated only by answer fluency”. The privacy owner separates observable behavior from assumptions about the remaining workflow.

Give the retrieval engineer an authorized, read-only boundary record covering approved documents or data exports, access rules, answer use cases, and evaluation examples plus the criterion “deletion and refresh propagate to the index”. Their receipt identifies any missing proof.

The evaluation owner accepts, rejects, or returns the evidence for “deletion and refresh propagate to the index”. Completion of another condition cannot substitute for it. The risk hypothesis review advances with pass for support, fail for contradiction, and hold for unresolved evidence.

Expire the disposition if the privacy owner cannot reproduce the case for “retrieval evaluated only by answer fluency” under the recorded authority.

Baseline comparison

Describe the baseline comparison review through a case involving “stale chunks surviving source deletion”. The retrieval engineer captures the known state and the first unanswered workflow question.

Use a scope record covering approved documents or data exports, access rules, answer use cases, and evaluation examples to reproduce the case and inspect whether “sources and access classes are inventoried” holds. Store the comparison under the baseline comparison review, not in operator memory.

The evaluation owner closes the baseline comparison review with a bounded ruling on “sources and access classes are inventoried”. The ruling does not certify untested behavior in a local-model RAG system checked by a QA agent. The baseline comparison review advances with pass for support, fail for contradiction, and hold for unresolved evidence.

A new dependency, owner, or instance of “stale chunks surviving source deletion” expires the evidence for the baseline comparison review and requires a focused rerun.

Canary case

Treat “citations pointing to a relevant page but not the claim” as a reason to run the canary case review, not as a reason to guess. The system operator traces the condition through source inventory, access classification, parsing, chunking, indexing, retrieval, answer generation, citation checks, evaluation, and refresh.

Use “answers cite claim-level evidence” as the explicit criterion for a case drawn from the boundary covering approved documents or data exports, access rules, answer use cases, and evaluation examples. The resulting receipt belongs to the system operator.

The evaluation owner moves forward only after the record supports the finding “answers cite claim-level evidence”. Conflicting evidence makes the evaluation owner record fail and preserve the prior state. The canary case review advances with pass for support, fail for contradiction, and hold for unresolved evidence.

Recheck the drill when the operating path no longer matches source inventory, access classification, parsing, chunking, indexing, retrieval, answer generation, citation checks, evaluation, and refresh or when the rollback evidence expires.

Stop decision

Place a safe fixture showing “prompt injection entering through indexed documents” at the boundary tested by the stop decision review. The system operator records the permitted path and the first denied transition.

Create a versioned boundary record covering approved documents or data exports, access rules, answer use cases, and evaluation examples, then test whether “adversarial documents are included in tests” holds; keep the case result with its exact input identity.

The evaluation owner links the finding “adversarial documents are included in tests” to go, revise, or stop in the decision record. It does not treat completion of a local-model RAG system checked by a QA agent as proof of every outcome. The stop decision review advances with pass for support, fail for contradiction, and hold for unresolved evidence.

Reopen the case if the operating response to “prompt injection entering through indexed documents” changes, even when the title and stated requirement remain the same.

Expansion record

Represent the failure case “restricted documents placed in a shared index” explicitly in the expansion record review. The data owner captures the relevant input, action, and residual condition.

Compare the candidate result with a frozen scope record covering approved documents or data exports, access rules, answer use cases, and evaluation examples for “retrieval permissions match source permissions”. Preserve both sides of the comparison.

The evaluation owner closes the expansion record review only when the record resolves “retrieval permissions match source permissions”; otherwise the listed deliverable remains provisional. The expansion record review advances with pass for support, fail for contradiction, and hold for unresolved evidence.

Return the record to hold when the fixture, dependency, or permission used to judge whether “retrieval permissions match source permissions” holds changes materially.

Frequently asked question

How should I pilot Private AI Brain?

Pilot a narrow slice using approved documents or data exports, access rules, answer use cases, and evaluation examples. Require evidence that sources and access classes are inventoried, and stop on the failure case “restricted documents placed in a shared index”. The evaluation owner records go, revise, hold, or rollback.

A product bridge, with a boundary

The Private AI Brain is the relevant sincLLM offer for this narrow problem. The frozen live catalog describes its required boundary as approved documents or data exports, access rules, answer use cases, and evaluation examples and its deliverable as a local-model RAG system checked by a QA agent. The offer description is a scope boundary, not proof of technical sufficiency, compliance, safety, commercial value, or fit for this buyer.