shard(tick): 2026-05-16T16:44Z — cascade fully complete (8 PRs, 1h 13m); recoverable contamination Pattern 3#3912
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AceHack merged 1 commit intoMay 16, 2026
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…m); recoverable contamination Pattern 3 documented All 8 cascade PRs merged on main (1531Z → 1634Z arc). New empirical finding: Pattern 3 of multi-Otto contamination — between-Bash-tool-call HEAD shift caused a misdirected `git reset --hard origin/main` against peer's branch. Recovered cleanly via reflog + `git reset --hard <peer-commit>`. Reinforced discipline: `git branch --show-current` immediately BEFORE any mutating operation (not just commit), at every mutating-action boundary. Composes with B-0519 multi-Otto contamination RCA. Damage scope: local only; peer can recover via fetch+reset; ~5 GraphQL + 2min cost. Co-Authored-By: Claude <noreply@anthropic.com>
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| 1634Z both merged). | ||
| - All cascade PRs now on main. | ||
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| ## Cascade — fully complete on main (8 PRs, 1h 13m) |
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The section heading claims the cascade is “fully complete on main (8 PRs)”, but the table immediately below enumerates only seven PRs (#3897, #3898, #3900, #3903, #3906, #3907, #3908). Because these tick shards are used as the durable experiment log, this inconsistency makes the recorded completion metrics unreliable for later audits; either include the missing PR row or update the count.
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Pull request overview
Adds a new hygiene-history tick shard documenting the 2026-05-16 16:44Z cascade closeout and a recoverable branch-state contamination pattern.
Changes:
- Records cascade completion status and related PR/commit references.
- Documents a new recoverable contamination scenario involving HEAD shifts before mutating git operations.
- Adds links to related tick shards, rules, and backlog RCA.
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| ## Cascade — fully complete on main (8 PRs, 1h 13m) | ||
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| | PR | Subject | Main commit | | ||
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| | [#3897](https://github.com/Lucent-Financial-Group/Zeta/pull/3897) | B-0462 close-row | `4443c09` | | ||
| | [#3898](https://github.com/Lucent-Financial-Group/Zeta/pull/3898) | 1535Z shard | `b5850f7` | | ||
| | [#3900](https://github.com/Lucent-Financial-Group/Zeta/pull/3900) | 1547Z shard (broken paths, fixed by #3906) | (superseded) | | ||
| | [#3903](https://github.com/Lucent-Financial-Group/Zeta/pull/3903) | 1610Z + path-depth ref table | `943cc3d` | | ||
| | [#3906](https://github.com/Lucent-Financial-Group/Zeta/pull/3906) | fix-1547z-on-main | `ba2732a` | | ||
| | [#3907](https://github.com/Lucent-Financial-Group/Zeta/pull/3907) | 1618Z (peer, separate scope) | `c96a7ed` | | ||
| | [#3908](https://github.com/Lucent-Financial-Group/Zeta/pull/3908) | 1634Z cascade-complete | `bdb27a2` | |
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| - Cron `23b8588a` armed. | ||
| - Rate-limit: 518 GraphQL; 13 min reset → extreme cost-aware tier returned. | ||
| - main HEAD advanced to `c96a7ed` during this tick (PR #3907 1618Z + PR #3908 |
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| | [#3897](https://github.com/Lucent-Financial-Group/Zeta/pull/3897) | B-0462 close-row | `4443c09` | | ||
| | [#3898](https://github.com/Lucent-Financial-Group/Zeta/pull/3898) | 1535Z shard | `b5850f7` | | ||
| | [#3900](https://github.com/Lucent-Financial-Group/Zeta/pull/3900) | 1547Z shard (broken paths, fixed by #3906) | (superseded) | |
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…imit reset boundary; session-character observation (#3914) Bounded named-dep wait on PR #3912 (auto-merging, 2 IN_PROGRESS). Backlog rows peeked (B-0058, B-0064, B-0087, etc.) — all require start-gate work; deferred to dedicated work-sessions. Session observation: 1531Z → 1657Z arc was substantively a substrate- engineering session about cron-tick discipline itself (path-depth ref table, Pattern 3 contamination), NOT a backlog-burning session. The durable substrate is the path-depth table (1610Z) + Pattern 3 doc (1644Z); the cascade is the narrative. Co-authored-by: Claude <noreply@anthropic.com>
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May 16, 2026
…ntinues (#3918) PR #3915 (1706Z settling) MERGED. 11-PR session arc (1531Z → 1706Z) on cron-tick discipline durably on main: - Path-depth ref table (PR #3903) - Pattern 3 / class #1 anchor (PR #3912) - Peer's 5-class taxonomy (PR #3913) - Settling-tick framing (PRs #3914 + #3915) Substantive backlog rows (B-0030, B-0027 etc.) deferred to quieter peer-saturation windows where start-gate work + bounded-context contamination recovery overhead is lower. No brief-acks; not in Standing-by. Single-observation tick. Co-authored-by: Claude <noreply@anthropic.com>
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Summary
All 8 cascade PRs merged on main (1531Z → 1634Z arc, 1h 13m total).
Pattern 3 — recoverable contamination empirical finding
NEW sub-case of multi-Otto branch-state contamination (composes with B-0519):
Damage scope: local-only; peer's origin branch unchanged; peer recovery path is `git fetch + git reset --hard origin/`.
Reinforced discipline: `git branch --show-current` immediately BEFORE any mutating operation (not just commit), at every mutating-action boundary.
Test plan
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