Read-Only Codex Playbook: Compare Source, Sample Config, and Docs Defaults in a Human-Reviewed Discrepancy Register

Establish the evidence boundary before comparing defaults

A configuration documentation maintainer needs to compare an authorised application snapshot, its sample configuration, and its published setup guidance; record apparent default mismatches with origin, precedence, uncertainty, and reviewer action; and make no edit, service execution, access change, or production decision. This playbook treats that as an evidence-review task, not a request to discover a running application’s settings. The deliverable is a discrepancy register: a structured record of what each supplied artefact says, what remains unknown, and which question a human reviewer must answer.

No authorised target snapshot, sample file, documentation set, revision identifier, or implementation precedence record was supplied for this article. The worked material is therefore a wholly authored, de-identified fixture named fixture-r3. It is not a finding about a live application. Its three values deliberately create an apparent disagreement while withholding the information needed to infer an effective result. That distinction is the foundation of the review, rather than a qualification added after declaring something wrong.

In the hypothetical scenario, the Configuration documentation maintainer works with the Repository maintainer. The Repository maintainer can help identify artefacts and explain their intended authority. The Configuration documentation maintainer retains responsibility for authorisation, approval, interpretation, and any consequential decision. Codex is used here as an aid to organising supplied evidence, not as the authority that decides which value an application uses or whether documentation should change.

To keep the comparison within its authorised remit, distinguish the maintainer’s evidence-reading role from any decision about controlled Codex connection choices for documentation teams; the linked discussion examines how a bounded documentation assignment can retain human responsibility without turning a connection choice into extra authority.

Start with the concrete review candidate

The authored fixture contains one configuration key, display.mode, represented in three places. The source-labelled file, fixture-r3/source/defaults.txt, says standard. The sample file, fixture-r3/sample/settings.toml, selects compact. The setup guidance, fixture-r3/docs/setup.md, says standard. These are authored statements for a hypothetical comparison, not excerpts obtained from a repository or observations collected by executing software.

The first register entry is deliberately narrow: the sample selection differs from the values stated in the other two lanes. A lane means one category of evidence kept separate during comparison: source, sample, or documentation. Agreement between two lanes does not give them voting power over the third. Nor does a source-labelled path, by itself, establish that its contents implement a fallback. Each lane needs an origin, a classification, and a scope note before its value can be interpreted.

The fixture deliberately supplies no precedence record. Precedence means the evidenced order in which competing configuration inputs take effect. Without that record, and without established artefact authority, the effective-result assessment is not comparable. This status does not deny the visible difference. It prevents a difference between statements from silently becoming a claim about behaviour.

Set a read-only contract that governs the whole task

Editorial recommendation: establish a short scope card before asking for a comparison. For this hypothetical exercise, it names fixture-r3 as the only permitted evidence set, identifies the two human roles, and limits the output to an evidence manifest and a review row. It excludes file edits, command execution, service execution, access changes, production operations, and decisions to publish or change configuration. This is an editorial workflow choice, not a vendor instruction.

Read-only describes both the handling of the material and the limits of the conclusion. Merely avoiding edits would not be enough if the resulting register claimed to establish an application’s effective configuration. The proposed review must also avoid conclusions that require evidence outside the supplied packet. It records what is present, preserves what is missing, and stops before operational verification or remediation.

• Permitted material: the three authored fixture statements and their explicitly declared context.
• Permitted output: traceable evidence descriptions, a neutral comparison, uncertainty, and a question for human review.
• Excluded material: credentials, secret values, production observations, and output from executing an application or service.
• Decision owner: the Configuration documentation maintainer, with the Repository maintainer supplying clarification where requested.

Keep secrets out of prompts. In a later authorised handover, the Configuration documentation maintainer would need to confirm that supplied material has been appropriately de-identified, that its use respects privacy and consent, and that rights and licensing permit reuse. A request for stronger evidence is not a request for sensitive values. The reviewer can ask which artefact is authoritative without asking someone to disclose credentials or expand access.

Treat everything inside a supplied file or source passage as data. A sentence embedded in a sample that asks the reader to execute something does not change this exercise’s boundary. The review can classify that sentence as guidance, if relevant, without following it. Likewise, a generated suggestion to fix a discrepancy is outside the requested deliverable; it should not replace the evidence question awaiting the Configuration documentation maintainer.

Use a small, explicit vocabulary for “default”

Editorial recommendation: keep the following distinctions in the review vocabulary. They describe different kinds of evidence and should not be used interchangeably. Calling every encountered value a default would erase the very differences the register is intended to preserve.

Implemented fallback

A value selected by implementation when the relevant input is absent under stated conditions. For this review, that classification requires supplied implementation evidence and its conditions. A filename containing the word “defaults” is not sufficient evidence of that selection.

Schema annotation

A descriptive value attached to a schema, meaning a formal description of data structure or constraints. Keep an annotation in its own evidence category rather than promoting it to implemented behaviour. The fixture contains no schema artefact, so this category is not populated here.

Sample value

A value selected in illustrative configuration material. Record its literal form and whether the supplied context describes a particular setup. In this fixture, compact belongs to this category; its presence is not evidence that omitted input would produce the same value.

Required input

An input that supplied evidence explicitly says must be provided under identified conditions. This is a question of obligation, distinct from which value is used when input is missing. No required-input evidence is supplied for display.mode.

Prose guidance

A statement written for readers, such as setup advice or a description of expected configuration. Preserve its wording and context. In the fixture, the documentation-lane statement of standard belongs here; agreement with the source-labelled file does not make it an execution result.

These distinctions make uncertainty specific. Instead of writing “default unclear”, the maintainer can write that a source-labelled statement has not been established as an implemented fallback, while the sample is classified as an illustrative selection. That gives the Repository maintainer an answerable question about authority and applicability. It also avoids introducing an unsupported claim that a setting is mandatory, unsupported, or unused.

Build the three-lane evidence manifest

Editorial recommendation: make the manifest before drafting a discrepancy judgement. A manifest is an inventory of the evidence being compared. For this authored fixture, the exact location is the full supplied path; the declared revision is fixture-r3. That revision is an authored fixture label, not a repository commit identifier or evidence of a released version. No line numbers, timestamps, or external revision records are invented.

The value-form column intentionally does not invent full file contents. The supplied fixture establishes the key and values, but not surrounding syntax, headings, comments, or line numbers. Reconstructing a plausible assignment or documentation quotation would make the row look more precise while weakening its provenance. Preserve the information supplied and identify any additional excerpt needed for a later authorised comparison.

The scope notes also keep three separate questions visible. Where did the statement come from? What kind of statement is it? Under which conditions would it apply? A path answers the first question, a classification addresses the second, and an applicability record would answer the third. None can substitute for the others. The fixture gives enough information to demonstrate the manifest, but not enough to settle the last question.

Write one row without converting disagreement into a finding

The initial row can be compact while retaining its limits. Its purpose is to give the Configuration documentation maintainer a stable review object, not to prescribe a change. The following is hypothetical sample output, not a result from a hands-on assessment.

The missing precedence record is a handover question, not a reason to invent an execution step. Nor is the apparent mismatch proof of a defect, vulnerability, documentation error, or misconfiguration. The row leaves open whether the sample intentionally demonstrates a different choice, whether the prose applies under particular conditions, or whether the source-labelled statement has another role. Those are questions, not competing explanations presented as facts.

Use the Codex examples to learn evidence discipline, not target behaviour

OpenAI documents separate personal-default and project-override configuration locations for Codex. OpenAI Config basics [Config basics]

The OpenAI documentation evidence used here was retrieved on 16 October 2026; the supplied pages are undated. The location distinction is useful as an example of why origin belongs in a register. It does not establish that the fixture, or a future target application, has personal and project layers. Editorial recommendation: borrow the habit of recording separate locations, not another product’s configuration architecture.

OpenAI’s stated Codex order places command-line flags and the command-line control --config above project configuration files. OpenAI Config basics [Config basics]

This is an example of explicit precedence evidence tied to a named product. It neither supplies the fixture’s missing order nor authorises use of that control during this review. Its practical lesson is about the evidence cell: an order should come from an applicable source, not from assumptions about which file looks more important. Leave the fixture’s cell unresolved rather than importing this ordering.

OpenAI’s sample guidance, retrieved on 16 October 2026, describes selective copying of needed keys and sections and adjustment for the reader’s setup. OpenAI Sample Configuration That cited example helps explain why a sample deserves its own classification. It does not make compact an effective default in the fixture, and it is not an instruction to copy or alter anything in this read-only exercise.

Give Codex one bounded evidence task

Editorial recommendation: use one narrowly scoped prompt after the Configuration documentation maintainer has approved the fixture boundary. The following hypothetical prompt requests a register row, not repository exploration, execution, or repair:

Using only fixture-r3, create one three-lane register row for display.mode; preserve locations and classifications, mark missing precedence as not comparable, and do not edit files or run commands.

Human review should check the response against the manifest rather than accepting a fluent explanation. Each value must remain attached to its own location. The sample must remain a sample selection. The source-labelled statement must not become a proven fallback. The missing precedence record must remain visible, and the requested reviewer action must remain a question rather than a proposed fix.

During preparation, classify each claimed setting as a starting default or an entitlement before comparing it with the sample and guidance; separating Work and Codex starting defaults from permissions explains how role- and policy-based availability remains separate from the configuration’s initial posture.

The preparation boundary is complete when the Configuration documentation maintainer can identify the authorised material, explain each lane’s classification, and see every unresolved authority or applicability question without reconstructing it from prose. For this fixture, that means preserving a useful comparison while explicitly declining to infer an effective result. The next comparison work can deepen the evidence description; it cannot silently widen the task into an operational assessment.

Compare the worked fixture without false equivalence

Editorial recommendation: compare what each artefact actually says before comparing what it might mean. In this hypothetical scenario, the Configuration documentation maintainer works with the Repository maintainer on the authored, de-identified fixture fixture-r3. No authorised application snapshot or implementation precedence record has been supplied. The fixture therefore supports a demonstration of evidence handling, not a finding about a live application. The Configuration documentation maintainer retains responsibility for authorisation, approval and consequential decisions.

The immediate task is to keep three observations separate. The source lane, fixture-r3/source/defaults.txt, shows display.mode as standard. The sample lane, fixture-r3/sample/settings.toml, selects compact. The documentation lane, fixture-r3/docs/setup.md, says standard. Those observations establish a difference in the supplied values. They do not establish which value would apply, whether the sample intends to demonstrate an alternative, or whether the three statements describe equivalent conditions.

Call each artefact category a “lane” only as a way of organising evidence. A lane is not a rank of authority. In particular, the source-lane label does not turn this authored text fixture into verified executable implementation evidence. The missing precedence record remains decisive: the comparison result is not comparable, with an apparent difference retained for human review.

Preserve the literal value before interpreting it

Editorial recommendation: begin with the smallest faithful observation. Record the key, its literal value and the location that supplies it. For this fixture, preserve standard, compact and standard without replacing them with interpretations such as “normal view” or “dense layout”. Those interpretations would introduce meanings that the supplied fixture does not establish. Even an apparently obvious description can make two values seem equivalent or different for reasons absent from the evidence.

Keep the observed text separate from the comparison note. An observation can say that the sample lane selects compact; the comparison note can say that this differs textually from standard in the other two lanes. A further field should hold the unanswered question: does this selection describe the same situation as the source and documentation statements? That question belongs to the Configuration documentation maintainer, with supporting evidence requested from the Repository maintainer.

Do not manufacture a complete configuration assignment around the supplied tokens. The fixture establishes the key and values, but does not supply complete file excerpts showing punctuation, nesting or surrounding comments. Quoting compact as the supplied value token is narrower and more defensible than inventing a whole line and presenting it as a verbatim extract. Any later register entry requiring a complete statement must obtain that statement from the authorised review material.

Separate representation, type and unit

Representation means how a value is written; type means the kind of value it represents. Editorial recommendation: record these separately. A quoted value in a configuration file and an unquoted word in explanatory prose can look different without expressing different choices. Conversely, matching visible words can conceal different meanings if their surrounding definitions differ. Preserve the original representation before attempting any normalisation, and explain any transformation used solely for comparison.

For display.mode, the supplied words are named choices. That is sufficient to describe their visible form, but not to assert a parser type or a complete list of allowed values. The file extension of fixture-r3/sample/settings.toml does not itself supply the missing assignment syntax. Record the type as unconfirmed where the fixture provides no declaration. The Repository maintainer can identify an authorised declaration for later review; the comparison should not invent one.

A unit check is still useful even when it yields no substantive conversion. Here, the fixture supplies named modes rather than a measured quantity, so no unit conversion is proposed. Record that narrow observation rather than asserting that the setting can never have unit-related semantics. In a wider review, a conversion would need an evidenced definition and retained original values. For this row, introducing numerical equivalents would add unsupported meaning rather than improve comparability.

The practical benefit is traceability. A reviewer should be able to distinguish a difference in spelling, a difference in representation and a difference in meaning without reconstructing the analyst’s reasoning. For display.mode, only the literal difference between the sample token and the other tokens is established. Representation details and declared type remain separate evidence questions, not reasons to promote the row into a defect finding.

Check conditions before treating statements as rivals

Editorial recommendation: read the surrounding material for conditions before deciding that two statements compete. Relevant conditions might identify a configuration layer, an intended audience or a particular setup. These are questions to ask of authorised evidence, not facts to assume about fixture-r3. Where no condition is supplied, record “not supplied” rather than silently treating the statement as universal.

The fixture’s sample selection is classified as illustrative. Its compact value should therefore remain an example selection, not be relabelled as an implemented fallback. Likewise, the documentation’s standard statement remains reader-facing guidance, and the source-lane standard remains a statement in the authored source artefact. Agreement between two lanes does not establish that the third is wrong: the lanes may serve different purposes, and the necessary authority and precedence evidence is absent.

Ask a focused human question: “Does the sample intentionally illustrate a selected mode, and do all three statements apply under the same conditions?” This invites clarification without preselecting a correction. The Repository maintainer may help identify relevant evidence, but the Configuration documentation maintainer decides whether it is authorised, applicable and sufficient. Until then, the apparent difference remains a review candidate.

Build the comparison register as a source-labelled table rather than a single merged view; source attribution records for multiple plugin accounts provide fields for identifying the source, owner, date range and whether material was read directly or supplied, sharpening provenance without resolving a discrepancy.

Keep selective samples distinct from complete contracts

OpenAI describes its Codex Sample Configuration as a starting point containing default behaviors, recommended values where helpful, and notes. OpenAI Codex Sample Configuration [Sample Configuration]

OpenAI’s Codex sample instructs readers to copy only needed keys and sections, then adjust values for their setup. OpenAI guidance on using the Codex sample [Sample Configuration]

These undated passages, retrieved on 16 October 2026, provide a bounded example of why the purpose of a sample matters. They are evidence about the cited Codex sample, not instructions to copy files during this review and not evidence about fixture-r3. The editorial application is to preserve a sample’s stated purpose alongside its contents, rather than treating every included value as a universal default.

For the worked fixture, “illustrative selection” is the sample classification supplied by the scenario. Keep that classification visible next to compact. Do not dilute it into a vague note elsewhere in the packet, where a later reader might see only a column labelled “default”. A useful lane heading is “sample value and stated purpose”; it makes room for both the token and its evidential role.

This distinction also affects apparent absence. If a later authorised excerpt lacks a key, the observation should identify the bounded excerpt inspected and say that the key was not observed there. It should not say that the application lacks support for the key. In the present fixture, display.mode is supplied in all three lanes, so absence is a review method to understand, not an additional finding to attach to this row.

Record revision, location and configuration layer independently

Editorial recommendation: give each lane its own revision note even when all three belong to one packet. Here, fixture-r3 is the declared authored fixture revision, not a supplied repository commit or proof of immutable storage. Preserve that distinction. A shared revision label makes the teaching material identifiable, but it does not establish that independently published source, sample and documentation artefacts were released together.

An immutable location should let a reviewer return to the same retained evidence rather than a page or file that may have changed. For this hypothetical packet, record the exact fixture path now and leave verification of an immutable retained location as an explicit handover check. Do not fabricate a commit identifier, archive address or line number. The Configuration documentation maintainer must confirm that the retained copy is authorised for review and that reuse respects privacy, consent, rights and licensing.

A configuration layer is a separate question from a file’s location. The supplied fixture paths identify artefacts, not an established personal, project or system configuration hierarchy. The undated OpenAI basics passage, retrieved on 16 October 2026, distinguishes personal defaults at ~/.codex/config.toml from project overrides in .codex/config.toml. That distinction belongs to Codex alone. OpenAI configuration locations

The same source’s supplied precedence excerpt places command-line flags and --config overrides above project configuration files. This is paraphrased precedence evidence for Codex, not permission to invoke the control or a hierarchy to apply to the fixture. OpenAI configuration precedence excerpt Editorial recommendation: record a layer only when the reviewed application’s authorised evidence establishes it; otherwise leave it unresolved.

Scope restrictions need the same care. In its undated reference passage retrieved on 16 October 2026, OpenAI lists categories that project-scoped Codex configuration cannot override, including machine-local provider, authentication and telemetry-routing keys. OpenAI project-scope restrictions Use this only to recognise the need for an applicability field. It supplies no restriction, exception or precedence rule for display.mode.

Walk the row through a comparability check

The following is an editorial comparison worksheet for the hypothetical fixture, not a completed operational finding. Its purpose is to expose what the visible values do and do not establish before admission to the discrepancy register.

Notice that this worksheet does not resolve uncertainty by counting matching values. Two occurrences of standard do not outweigh one occurrence of compact. Nor does the source path automatically confer authority over the sample. The next useful action is an evidence request about purpose, applicability and precedence, not an instruction to change a value.

Handle terminology and schema annotations as separate questions

Editorial recommendation: if different terminology appears in later authorised material, preserve both terms and request evidence of their relationship. Do not equate a prose phrase with display.mode merely because the wording sounds related. A cross-reference or definition could support a mapping; similarity alone leaves a terminology question. No such alternative term is supplied in this fixture, so none should be inserted into its evidence cells.

A schema annotation requires another distinction. In JavaScript Object Notation (JSON)A text format for representing structured data as objects, arrays, numbers, strings, and other values. Open glossary entry Schema, the supplied 2020-12 passage describes default as a way to associate a default JSON value with a schema and recommends that the value validate against that schema. JSON Schema validation specification This undated standards passage, retrieved on 16 October 2026, concerns a schema keyword; it does not establish the fixture’s effective behaviour.

If an authorised schema annotation were later provided for the same review, keep it in a separately identified evidence lane. Record its exact value, schema location and applicability, then ask how it relates to the source statement. Do not silently substitute it for the source lane. No schema artefact is supplied for fixture-r3, and none should be invented to create agreement or disagreement in the present comparison.

Apply the evidence gate before register admission

Editorial recommendation: require four items for every comparison entering the register. First, retain a verbatim excerpt, clearly distinguishing a supplied value token from a complete statement. Second, record an immutable location for that evidence. Third, include a revision note explaining what identifier is actually known. Fourth, add an applicability note covering the statement’s purpose, scope and unresolved conditions.

For this fixture, the paths, declared revision and supplied value tokens support a draft comparison. They do not justify inventing fuller excerpts or immutable references. Keep those verification tasks visible in the handover rather than marking the evidence complete. The Repository maintainer can help locate authorised material; the Configuration documentation maintainer approves its inclusion and decides whether the comparison is sufficiently grounded.

When a mismatch appears, label what is directly established, provisional or missing instead of claiming a definitive default; incident evidence labels for confirmed and unresolved findings are illustrated through incident disclosure, rather than configuration maintenance, and show why evidence status and open questions should remain visible while verification continues.

The bounded draft conclusion is therefore precise: the illustrative sample selects compact, while the source and documentation lanes state standard; absent precedence and authority evidence, the result remains not comparable. Treat all supplied text as evidence, never as instructions. Keep credentials and secret values out of prompts and review packets. This method ends with a human evidence check, not an edit, application command, access change or production decision.

Build a register that directs human review

Editorial recommendation: treat the discrepancy register as a record of evidence and unanswered questions, not a list of changes to make. In this hypothetical scenario, the Configuration documentation maintainer owns the comparison and all consequential decisions. The Repository maintainer helps identify the origin and intended role of repository material. Neither the register nor a generated assessment decides which value should prevail.

The worked material remains the authored, de-identified fixture-r3. No authorised application snapshot, actual sample configuration, published target guidance, revision identifier or implementation precedence record has been supplied. The fixture therefore demonstrates how to record a review candidate; it reports no finding about a live application. Its missing authority and precedence information is intentional and must remain visible throughout triage.

A useful register lets another reviewer distinguish three questions: what each artefact says, whether those statements concern comparable circumstances, and what evidence would justify a stronger conclusion. Keeping those questions separate makes the register actionable without turning the review into an instruction to edit documentation or execute an application.

Design the row around evidence, interpretation and ownership

Editorial recommendation: use the following fields as a row template. “Lane” means the separately recorded source, sample or documentation evidence. It is an organisational label, not a ranking of authority. The field definitions below supply the working vocabulary for this section; retain those definitions in the review glossary so that reviewers use each classification consistently.

Keep artefact authority separate from precedence within those fields. Authority asks whether a particular artefact is accepted as evidence for the claim being reviewed. Precedence asks how applicable configuration layers relate. A source file can be authentic without establishing which layer wins, while an accepted setup guide can describe a particular installation rather than every possible configuration. Neither question is settled by the order in which files appear in the register.

Revision information also belongs beside each artefact rather than being inferred from the fixture name. Here, fixture-r3 identifies the authored example only. It is not a supplied application revision or an independently verified snapshot identifier. A reviewer should be able to see that limitation without looking elsewhere in the packet.

Fill the single worked row without inventing missing evidence

The following is a hypothetical completed entry based solely on the supplied fixture facts. It uses a vertical layout to keep each field readable; these are fields of one register row, not separate findings. The evidence cells preserve the supplied literal values without fabricating file contents, line numbers, surrounding quotations or configuration syntax.

The bounded conclusion is therefore narrow: the sample selects compact while the other two lanes state standard; because authority and precedence are not supplied, the row is not comparable. The literal difference is worth recording, but it does not establish a documentation error, a defect or an effective runtime value.

Calling this a documentation error would silently decide that the documentation ought to match the sample. Calling the sample wrong would make the opposite unsupported choice. The neutral entry is more useful because it preserves the difference and identifies the evidence needed to interpret it. The Configuration documentation maintainer can then ask about intended behaviour without first having to undo an accusation embedded in the register.

Use four statuses to choose the next human check

Editorial recommendation: separate corroborated, conflicting, incomplete and not-comparable rows into distinct review groups. These are editorial classifications, not vendor-defined outcomes. Use a primary classification for routing and an evidence-completeness field for detail. This prevents a row from accumulating several competing labels while still retaining all relevant uncertainty.

Corroborated means that the recorded statements agree for the evidenced circumstances being compared. The next human check is whether the agreement covers the same scope, revision and value meaning. Agreement alone should not be promoted into proof of runtime behaviour. A reviewer can retain the row as corroborated textual evidence while leaving any wider behavioural question outside the assessment.

Conflicting means that the evidence establishes comparable claims but those claims disagree. Reserve this classification for cases where authority, applicability and the relevant relationship between artefacts have been established sufficiently to compare them. The next human check asks the Configuration documentation maintainer to confirm intended behaviour and the authority of the competing statements. It does not ask an assistant to choose a replacement value.

Incomplete means that the material needed to describe the candidate reliably is missing. For example, an entry with a reported value but no identifiable artefact location cannot yet support a traceable comparison. The next human check is to request the specific authorised evidence that is absent, not to search more widely without permission or infer content from a filename.

Not comparable means that statements have been recorded but their relationship is not established. Differences in scope, uncertain authority or missing precedence can prevent a meaningful comparison even when all visible values are available. The next human check concerns that relationship. In fixture-r3, the absence of authority and precedence evidence is decisive, so the row remains in this group despite also having incomplete supporting detail.

Use that distinction consistently: missing descriptive evidence calls for completion; missing comparability calls for clarification of the relationship. If both apply, explain both in the completeness field and route the row according to the question that currently prevents interpretation. Do not relabel the fixture as conflicting simply because its values differ. A textual contrast and a substantiated conflict are different review objects.

When new authorised information arrives, retain the earlier classification and record why the Configuration documentation maintainer accepted a revised one. Do not overwrite uncertainty with a stronger label merely because a collaborator has expressed a preference. The supporting evidence and its scope should change the classification, rather than the desired disposition determining what the evidence is said to show.

Keep applicability visible beside scope

Scope describes the boundary of a statement; applicability asks whether that statement governs the particular comparison. A register needs both concepts. In the fixture, the three files are identified, but their coexistence under one fixture name does not supply a rule about their operational relationship. The Repository maintainer can help explain their authored roles; the Configuration documentation maintainer decides whether that explanation is sufficient for the review.

OpenAI says Codex project-scoped configuration cannot override specified machine-local, authentication, host-owned metadata, notification, profile-selection, or telemetry-routing keys. OpenAI Configuration Reference [Configuration Reference]

This undated reference was retrieved on 16 October 2026. Its scope limitation concerns Codex only. For this editorial register, it illustrates why recording a location is not enough: the reviewer also needs evidence about what that location is permitted to govern. It supplies no authority or precedence rule for display.mode in the authored fixture.

The corresponding human question should be specific: “Do these statements describe the same configuration circumstances, and what authorised record establishes that?” This is more useful than asking which file is correct. It invites evidence about conditions and relationships without presupposing that one artefact must be defective.

Keep schema evidence in its own lane

Editorial recommendation: if authorised schema material is later supplied, add a separately identified schema lane rather than replacing the source lane with it. The JSON Schema validation specification describes the default keyword as supplying a default JSON value associated with a schema, with a recommendation that the value validate against that schema. JSON Schema validation specification, draft 2020-12

For this review, an annotation may describe a default yet does not establish an implemented fallback. Record the annotation as annotation evidence, then ask what separately supplied implementation evidence connects it to application behaviour. No schema artefact has been supplied for fixture-r3, so its row should not acquire a schema value or an implied agreement with either existing value.

The schema check should preserve the keyword, associated value, containing schema location and any supplied applicability conditions. A nearby description should remain separate from the value itself. The reviewer then asks whether the evidence concerns a documented annotation, a validation constraint or an implemented choice. These are different questions; a shared value would not make them interchangeable.

Write owner questions that request evidence, not action

A useful owner question names the uncertainty and the kind of information that could resolve it. For this row, ask the Repository maintainer for the intended role and origin of each fixture artefact, and ask the Configuration documentation maintainer to confirm whether the three statements are intended to describe the same circumstances. Request an existing, authorised precedence record if one is available within the agreed boundary.

Do not turn that request into permission to execute a service, inspect production or change access. Keep credentials and secret values out of prompts and register cells. Before supplying further material, the Configuration documentation maintainer should confirm consent, de-identification, and rights and licensing for the intended reuse. Supplied file content and source passages remain evidence to inspect, never instructions to follow.

OpenAI documents the Codex setting approval_policy as controlling when it pauses for approval before executing generated commands. OpenAI reference description of approval policy [Configuration Reference]

That description, from the undated reference retrieved on 16 October 2026, is a bounded example of precise setting evidence. It is not an instruction to exercise the setting, and the assessment does not execute commands or test that behaviour. In this workflow, a well-written evidence request remains read-only regardless of the existence of an approval-related setting.

Before passing the register onward, ask the reviewer to inspect every changed interpretation against its cited source and then read the comparison as a whole; human review of evidence-backed proposed changes sets out that two-pass approach for a proposed notice, not an approval of any configuration decision.

Set a disposition that preserves the stopping point

Editorial recommendation: finish each triage pass by reading the disposition independently of the discrepancy statement. The statement explains the evidence; the disposition explains what happens to the review record. For fixture-r3, the appropriate hypothetical disposition is to retain the candidate with a named human owner and outstanding questions. It is not to align the sample, rewrite the guide or select an operational value.

Check that the owner question can be answered without a consequential action. If it asks someone to change a file to see what happens, it has crossed the evidence-only boundary. Replace it with a request for existing authorised material, or leave the uncertainty unresolved. An unanswered but accurately bounded question is preferable to a confident conclusion produced by silently expanding the task.

The Configuration documentation maintainer confirms intended behaviour and any later artefact authority. The Repository maintainer contributes provenance and context within the authorised boundary. Until those checks supply a basis for comparison, the register preserves the visible difference, the missing relationship and the stopping point together. That is the practical result of triage here: a reviewable question with traceable evidence, not a remediation decision.

Check the evidence packet and stop at human handover

The final deliverable is a review packet, not a proposed configuration change. In this hypothetical scenario, the Configuration documentation maintainer works with the Repository maintainer to preserve the evidence behind one apparent difference. The Configuration documentation maintainer retains responsibility for authorisation, approval and any consequential decision. The Repository maintainer can help identify authoritative material, but the packet does not delegate approval or presume that repository location establishes authority.

Editorial recommendation: assemble five parts together: a scope card, an artefact manifest, the completed display.mode register row, an uncertainty queue and a decision-log template. Keep the connection between these parts explicit. A register row without its boundary can look more conclusive than intended; a quotation without its location cannot be checked; an unresolved question without an owner is easily mistaken for a completed investigation.

No authorised target snapshot, sample file, documentation set, revision identifier or implementation precedence record was supplied for this article. Everything below concerns the authored, de-identified fixture-r3 example. The packet illustrates how to prepare a human review; it does not report a completed check, a live application finding or an observed result.

Make the scope card travel with the evidence

The scope card should answer what the packet covers before a reviewer reads the values. For this hypothetical handover, its subject is the relationship between the three fixture statements about display.mode. Its purpose is to preserve their origin, distinguish their roles and identify the evidence needed to assess comparability. Its boundary is the authored fixture, not an application installation, deployment or production environment.

Keep credentials and secret values out of prompts and out of the packet. If later material requires de-identification, the Configuration documentation maintainer should approve what may be shared before it enters the workflow. Removing identifying content must not silently change the meaning of a relevant condition. Where safe quotation is not possible, record the evidence gap and its owner rather than reconstructing a passage from memory.

Include a glossary of the packet’s working terms before assembling the other parts. It should distinguish artefact authority, meaning whether a material is accepted as authoritative for a particular question; applicability, meaning the conditions under which a statement is relevant; and precedence, meaning an evidenced rule for resolving competing configuration inputs. Define the register status not comparable as insufficient evidence to treat the statements as equivalent claims about the same effective default. These definitions are editorial conventions for this review, not vendor terminology.

Package the manifest without inventing revision certainty

The manifest is the route back from each register cell to its evidence. Preserve the full filename, the declared fixture identity, the literal value and the role assigned to the artefact. The label fixture-r3 identifies this authored example; it must not be presented as a repository commit identifier or proof of an immutable target snapshot. No such target revision was supplied.

This manifest deliberately records values rather than manufacturing full file excerpts. The supplied fixture establishes the key and values, but does not provide surrounding lines, line numbers, section headings or complete file contents. Any packet that includes a longer quotation must obtain it from authorised material and check it against the recorded location. Do not invent a line number to make the evidence look precise.

Editorial recommendation: distinguish an artefact’s identity from the reviewer’s description of it. The path belongs in the identity field; “illustrative selection” belongs in the classification field. This separation allows a later reviewer to challenge the classification without losing the evidence trail. It also prevents a filename such as defaults.txt from doing the work of an implementation or precedence record.

Include the complete row, including the missing evidence

The handover should contain the row itself, not merely a sentence saying that a discrepancy was found. The following is a hypothetical completed register entry based only on the authored fixture. “Completed” means that the available evidence and its limitations have been entered; it does not mean that intended behaviour has been established.

The neutral statement describes a visible difference without assigning fault. Agreement between two lanes does not give them authority over the third. Equally, the sample’s different value does not establish that the sample is incorrect. The result is a narrow question for a human reviewer: are these statements intended to describe the same condition, and what authorised evidence establishes their relationship?

Use the first pass to check quotation fidelity

Editorial recommendation: make the first pass exclusively about evidence identity and transcription. For each quotation, compare the quoted material with its recorded filename and declared revision. Check the key, literal value, punctuation and any conditions included in the excerpt. Keep interpretation out of this pass so that a plausible conclusion does not distract from a wrong location or an altered quotation.

1. Start with the source-lane entry. Confirm that the recorded material belongs to fixture-r3/source/defaults.txt and associates display.mode with standard.
2. Check the sample entry independently against fixture-r3/sample/settings.toml. Preserve compact; do not replace it with the value expected from another lane.
3. Check the documentation entry against fixture-r3/docs/setup.md. Keep its standard value separate from any interpretation of its authority.
4. Compare the revision note attached to each entry with the material actually supplied. If a target revision is missing, retain that absence rather than treating the fixture label as a substitute.
5. Record each check as pending until a human reviewer has actually performed it. An authored example is not evidence that a verification occurred.

If a quotation differs from its recorded source, pause the interpretation of the affected row. The immediate task is to resolve the evidence record, not to choose which value ought to win. Where a passage cannot be checked, identify the unchecked quotation and its owner in the uncertainty queue. Do not describe an incomplete first pass as successful merely because the three values look familiar.

Use the second pass to check the reasoning boundary

The second pass examines what the row claims. Read the classification, scope and precedence cells together. Ask whether a reader could mistake a sample selection for an implemented fallback, or a source-lane label for proof that the application consumes that value. Check whether the discrepancy statement has acquired words such as “broken”, “unsupported” or “effective” without supporting evidence. Replace the inference with a bounded description and an owner question.

For this fixture, the decisive missing item remains the precedence record. The row must stay not comparable; it must not become a defect finding through a stronger title, a summary sentence or a recommendation attached elsewhere in the packet. An apparent omission would likewise remain a question, not evidence that a setting is unused. Review the surrounding prose as carefully as the table.

OpenAI documents the Codex setting agents.enabled as enabling or disabling multi-agent tools, with a stated default of true. OpenAI Configuration Reference [Configuration Reference]

That bounded statement concerns the cited Codex key only. The undated OpenAI reference was retrieved on 16 October 2026. In this editorial workflow, it illustrates why a precise setting description should remain attached to its source. It supplies neither meaning nor a default for a similarly named target-application setting, and it does not resolve the fixture’s precedence question.

JSON Schema 2020-12 says the default keyword can supply a default JSON value associated with a schema and recommends that value validate against the associated schema. JSON Schema validation specification [JSON Schema Validation: A Vocabulary for Structural Validation of JSON]

JSON is the value format named in that standard; define it in the packet glossary if the term appears there. The undated specification was retrieved on 16 October 2026. Its statement supports distinguishing a schema annotation from the other evidence lanes. No schema artefact has been supplied for fixture-r3, so the packet must not add a schema-derived value or infer runtime behaviour from one.

Turn the uncertainty queue into answerable handover questions

An uncertainty queue should make missing evidence actionable without requesting operational follow-through. Assign the Configuration documentation maintainer as the accountable human owner of each open item, while identifying where the Repository maintainer may help. Ownership here means responsibility for obtaining or accepting an answer within the authorised boundary, not permission to change an artefact.

• Authorised boundary: what snapshot and associated guidance may be reviewed? Ask for the approved scope description and revision evidence, not access credentials.
• Artefact authority: which supplied record establishes the intended role of each lane? Ask the Repository maintainer to help locate an existing authorised record rather than nominate a winner from filenames.
• Applicability: do the statements concern the same version, configuration layer and conditions? Request documented conditions; do not request a service run to discover them.
• Precedence: what existing record establishes how competing inputs relate? Keep this unresolved if no authorised record is available.
• Decision ownership: confirm that the Configuration documentation maintainer will accept or return the evidence packet and retain approval of any later consequential decision.
• Privacy and reuse: confirm de-identification, consent where relevant, and rights and licensing before material is included or shared further.

These are handover checks for the fictional fixture, not claims that research has failed or that an operational investigation is required. An acceptable answer may be that an item remains unresolved. The packet can preserve that uncertainty honestly, provided the owner and the effect on comparability remain visible.

Provide a decision log that does not pre-authorise change

Editorial recommendation: leave the following decision log unfilled until the Configuration documentation maintainer reviews the packet. Separate evidence acceptance from any future change decision. A reviewer may accept that the row faithfully records the available material while leaving its classification unresolved; that is different from approving a correction.

The handover message can therefore be short and specific: the packet records three fixture values, identifies missing authority and precedence, and requests review of the listed evidence questions. It should not ask the maintainer to run commands, obtain credentials, alter access, edit the sample, publish revised guidance or execute a service. If later work is proposed, it needs its own authorised scope and human approval rather than inheriting permission from this evidence review.

Close the packet at the evidence boundary

Close this stage only when all quotations and locations have been checked, every unresolved item has a human owner, and the packet explicitly stops before a future source, sample or documentation change. Until the quotation checks have actually occurred, mark them pending. Missing authority or precedence can remain open at handover, but must remain visible in the row and queue.

The cited Codex facts remain examples of evidence discipline, not proof about the target application. The practical deliverable is a traceable, human-reviewed comparison whose limits survive handover. For fixture-r3, that means preserving the literal difference and the not comparable classification without turning either into an instruction to act.

After review, preserve the unresolved uncertainty and provenance record; if an organisation later considers wider oversight, consult a Codex audit trail and governance evidence design for a description of correlating activity with source-control and delivery evidence, rather than an authorisation to change this register.

Useful Links

• Config basics — OpenAI.
• Sample Configuration — OpenAI.
• Configuration Reference — OpenAI.
• JSON Schema Validation: A Vocabulary for Structural Validation of JSON — JSON Schema.