KB-42E7

Macro-5 Staging TD Candidate Error Model — R2-B2 (2026-06-19)

3 min read Revision 1
laws-newR2-B2macro-5staging-td-candidateerror-modelfail-closednon-authorizing2026-06-19

Macro-5 Staging TD Candidate Error Model — R2-B2 (2026-06-19)

Date: 2026-06-19 · Workstream: R2-B2-MACRO-5-STAGING-BUILD-AUTHORIZATION-PACKAGE-2026-06-19 (Deliverable 19 of 110) · Editorial revision: rev1 Class: non-executable staging TD candidate (error model) · READ-ONLY · NON-ENACTING · NON-AUTHORIZING · NO write performed.

Metadata convention. Editorial revision (rev1) only. AgentData storage revision/content_length authoritative at read time.

NON_EXECUTABLE_TD_CANDIDATE. No SQL/DDL/command. Error behavior described, not coded.


0. Status and non-authorization

STATUS: PASS — engineering / design-only. The candidate error model: a no-op + a recorded reason, never a fabricated pass. Engineering PASS ≠ authority PASS. Default: HOLD.

1. Purpose

Define how a workbench run fails: fail-closed, per stage, with structured reasons.

2. Sources / evidence read

Macro-4 B2 error contract (D31, BI-1…12); Điều 0-G ("Fail → audit queue"); bad-input no-digest-pass rule (Macro-4 D53). Main process, no reader-agents.

3. Accepted baseline (carried)

On failure: no stamp for that row/stage + a failure record. Failure is a no-op + evidence append, never a fabricated pass.

4. Evidence / analysis — error classes (fail-closed)

Class Behavior
missing identity (BI-1/2) no candidate PEN; append failure
already certified (BI-3) skip; out of scope
ambiguous partial stamp (BI-4) mark ambiguous; Owner-gated review; never certify (BAD_INPUT_BEHAVIOR_UNCLEAR)
Điều 0-G unresolved (BI-5) SOURCE_RECOVERY_REQUIRED; no stamp
asked to certify/canonicalize (BI-6/7) reject
blanket now() (BI-8) reject as fused-shortcut
out-of-order (BI-11) reject; row waits at its stage
out-of-scope role (BI-12) skip (BAD_INPUT_BEHAVIOR_UNCLEAR for observed)

5. Candidate / requirement / gate / result

Every error resolves to no production write + a structured candidate_error_code/candidate_reject_reason + an evidence append. Fail-open (stamp/certify on bad input) is disqualifying (F-OPEN-1…4). No error path is executed here.

6. Owner-gated future work

Wiring the error path to a built audit sink is Owner-gated; forbidden now.

7. What remains unresolved

BI-4 / BI-12 remain BAD_INPUT_BEHAVIOR_UNCLEAR; concrete error codes are future TD.

8. Ready for GPT/Codex review

Yes — Codex should confirm every class maps to a fail-closed no-op.

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