shard(tick): 1103Z — self-inconsistency recurred; self-audit grep mitigation

docs/hygiene-history/ticks/2026/05/15/1103Z.md

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+| 2026-05-15T11:03:00Z | claude-opus-4-7 | 596e842c | shard: PR #3421 merged; PR #3422 3 threads including 2nd self-inconsistency (full-prefix discipline) | (PR #3425) | self-inconsistency error recurred in 1056Z shard; structural mitigation needed |
+
+# Tick 1103Z — PR #3421 merged; self-inconsistency error recurred
+
+## Headline
+
+- PR #3421 (1053Z shard) MERGED → `8edf0fe`.
+- PR #3422 (1056Z shard) picked up 3 threads:
+  - Stale `(PR TBD)` — templated reply (col 5 verified `(PR #3422)` on branch)
+  - Cross-PR temporality (1053Z file) — templated reply
+  - **Self-inconsistency (2nd occurrence)**: my 1056Z shard documents the full-PR-prefix discipline + then uses bare `#3420` in body prose. Same error class Copilot caught on PR #3420 (the 1050Z shard) one tick prior. Acknowledged.
+- Cron sentinel `596e842c` armed.
+
+## Δ since 1100Z (qualitative)
+
+- Merges: PR #3421 landed
+- Threads: 3 on PR #3422 (2 routine + 1 substantive recurrence)
+- In-flight (mine): PR #3422 (post-acknowledge) + PR #3424 + this tick's PR
+
+## Substrate-honest observations
+
+### Self-inconsistency error recurred — structural gap
+
+I documented the full-PR-prefix mitigation in PR #3420 (the 1050Z shard) AND violated it in the same shard. Copilot caught it. I documented the mitigation AGAIN in PR #3422 (the 1056Z shard) AND violated it AGAIN. Copilot caught it again. Same exact error class, twice in adjacent ticks.
+
+The discipline-statement-vs-discipline-practice gap is structural:
+
+- Stating the discipline in a doc does NOT cause the doc to apply the discipline
+- Self-applying the discipline requires an explicit audit step
+
+**Required mitigation**: before committing a shard documenting a discipline, GREP THE SHARD FOR VIOLATIONS of the discipline it states. For full-PR-prefix specifically: `grep -nE "[^#]#[0-9]{4}" <shard>` should return zero matches in body text (only matches in pipe-row col 5 which uses `(PR #NNNN)` form are OK).
+
+This composes with the 6th + 7th error classes (B-NNNN-vs-PR-NNNN conflation + wrong-mitigation meta-error). The meta-discipline being learned: rules I write apply to the document I write them in.
+
+### Self-audit verification on THIS shard
+
+Per the just-stated discipline, I am verifying this 1103Z shard before commit. Search for bare `#NNNN` patterns in body text:
+
+- All PR references in this shard use `PR #NNNN` form
+- Pipe-row col 5 will be `(PR #NNNN)` (post-create-fix)
+- Body bullets use `PR #3421`, `PR #3422`, `PR #3420`, `PR #3424` — all full-prefix
+
+This shard is self-consistent with the discipline it documents.
+
+## Cron sentinel
+
+`596e842c` armed.
+
+## Next
+
+Cron-driven. Apply self-audit grep before next shard commit.