python-math #41: feat(math): mode collapse C5+C6 — driver mod semantics + poller flag plumbing deleted - #2670
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This was referenced Jul 27, 2026
python-math #43: docs(delphi): s7 goal state + journal — mode collapse executed, battery 20/20
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This was referenced Jul 27, 2026
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…cs + poller flag plumbing deleted ## What Phase 2, chunks C5+C6 of `GOAL_CUTOVER_READY.md` (the standing goal document for the Python math cutover) — continuing the mode collapse, the removal of the engine-mode switch (`POLISMATH_ENGINE_MODE`, clojure-legacy vs improved) so only the Clojure-exact behavior remains. - Replay driver: the `mod_update` reducer semantics — a moderation update triggers a votes-recompute first and updates only the moderation sets and watermark, with the effect landing on the next tick — is now the only moderation path. Deleted: the improved-mode `update_moderation` path, its cumulative `mod_state`, the emptying-transition guard (`_guard_moderation_clear` / `_mod_dict`), and the `NotImplementedError` raised on improved mode + restart. - Poller service (the service that polls Postgres for new votes and runs math ticks): the `engine_mode` config field, the `apply_engine_mode` passthrough, and the env import and startup-log field are deleted — the poller no longer reads or writes `POLISMATH_ENGINE_MODE`. `poller/__init__` and `env_flags` docstrings updated. - `utils/engine_mode.py` itself survives until the harness purge in the next commit: `certify.py` / `store.py` / `poller_equiv.py` still import it. ## Testing Deleted the 3 driver tests and 2 poller tests that pinned the removed paths. 21 driver + 93 poller tests green. commit-id:a4c818c8
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What
Phase 2, chunks C5+C6 of
GOAL_CUTOVER_READY.md(the standing goal document for the Python math cutover) — continuing the mode collapse, the removal of the engine-mode switch (POLISMATH_ENGINE_MODE, clojure-legacy vs improved) so only the Clojure-exact behavior remains.mod_updatereducer semantics — a moderation update triggers a votes-recompute first and updates only the moderation sets and watermark, with the effect landing on the next tick — is now the only moderation path. Deleted: the improved-modeupdate_moderationpath, its cumulativemod_state, the emptying-transition guard (_guard_moderation_clear/_mod_dict), and theNotImplementedErrorraised on improved mode + restart.engine_modeconfig field, theapply_engine_modepassthrough, and the env import and startup-log field are deleted — the poller no longer reads or writesPOLISMATH_ENGINE_MODE.poller/__init__andenv_flagsdocstrings updated.utils/engine_mode.pyitself survives until the harness purge in the next commit:certify.py/store.py/poller_equiv.pystill import it.Testing
Deleted the 3 driver tests and 2 poller tests that pinned the removed paths. 21 driver + 93 poller tests green.
commit-id:a4c818c8
Stack: