de:wasserversorger-discover

Discovery run complete: population coverage rose from 98.26% to 98.51% (residual dropped from 797 to 739 municipalities, 1.45M to 1.24M people). Processed a 60-unit singleton batch via two synchronous subagents — 58 resolved (33 new companies minted, 25 reused existing roster entries), 2 genuinely unresolved (a merged municipality with no single operator, and one blocked by a live domain-confusion trap that was caught before a bad mint). Domain-collision check stayed flat at 29 pre-existing (unaffected by this run); journal updated with full details for the next run.

Followed the skill's synchronous-shard protocol throughout — both research subagents dispatched with run_in_background: false and the mandatory "no Agent/Task tool" line in their prompts; neither recursed into background sub-subagents.

State on entry: picked up after wasserversorger-discover run 200ef0 (16:25, 97.95%→98.23%) and the wasserversorger-enrich 15:30 run's incidental coverage.mjs bump (98.23%→98.26%, +13 municipalities from enrichment-harvested member lists) — confirmed via ls -lat and journal grep before doing anything, since stale batch files from the prior run (batch60-input.json etc., all 16:27) were still sitting in the directory. Refreshed with coverage.mjs + build_gv_layer.mjs before building a new batch rather than trusting the leftover files.

Batch: build_batch60.mjs (60 singletons, same-day-exclusion + multi-member-hold logic intact from the 16:25 run's fix — no manual hand-rolling needed). Split 30/30 into two synchronous general-purpose subagents, company_id ranges wv-de-19270–19299 (shard A) / wv-de-19300–19329 (shard B).

Shard A (30): 18 new mints (13 self_supplied), 10 reused existing companies, 2 unresolved (Rosenthal am Rennsteig — 2019 merger, each Ortsteil self-supplies via its own system, no single named operator; Polling/Weilheim-Schongau — caught a live domain-confusion trap before minting: gemeinde-polling.de belongs to a different Bavarian Polling, Lkr. Mühldorf, already wv-de-12014).

Shard B (30): 15 new mints (8 self_supplied), 15 reused existing companies, 0 unresolved. Self-caught 3 duplicate mints during its own mandatory end-of-sweep collision check (staudenwasser.de, waldwasser.eu, otting-pallinger-gruppe.de all already in roster.jsonl under different IDs) — removed before ever reaching merge, exactly the failure mode the skill warns two-shard runs about. One AGS-name mismatch flagged for the record: the "Krakow am See" unit's residual member is actually Lalendorf (13072063), not Krakow am See — handled correctly per the input's residual_members[0].

Validation before merge: both shards well-formed JSONL (18/18, 15/15 roster rows; 30/30, 30/30 link rows), AGS-set check against batch60-input.json — all 60 assigned AGS present exactly once across both link shards, 0 missing, 0 duplicated. Cross-shard + full-roster eTLD+1 domain-collision recheck (per the skill's "recompute across every roster.part-*.jsonl shard, not just the existing roster" rule) run before consolidate_roster.mjs: 29 standing pre-existing collisions (unchanged), 0 new collisions from either new shard.

Merge: map_roster.mjs — needs-review queue 1195 (flat; this batch's rows are AGS-seeded singletons, not member-list names, so they don't feed the review queue). consolidate_roster.mjs: 2885 → 2918 distinct companies (+33 = 18+15, exact). coverage.mjs: municipalities claimed 10146 → 10204 (+58, exact = 60 dispatched − 2 unresolved), population 98.26% → 98.51% (+0.25pp), residual 797 → 739 municipalities / 1.452M → 1.244M people. build_gv_layer.mjs: multi-member pool unchanged at 10 units/22 municipalities (still on hold, no new information), singletons 775 → 717 (-58, exact). Post-merge full-roster collision recheck: still 29, confirming this run introduced none.

Crossed the 98.5% population-coverage mark this run.

For next run: continue singleton batches by residual_population descending — 717 singletons remain, largest ~6.6k (Schelklingen, Römhild, Weiler-Simmerberg etc. — still same-day-excluded, checked_at:"2026-08-31", will clear automatically once the run date advances). The 10-unit/22- municipality multi-member pool is still awaiting the overdue human decision — do not spend a run on it without new information. Standing domain-collision backlog is unchanged at 29 (eTLD+1) — still awaiting the overdue human consolidation pass. _tasks/netzbetreiber-contact/german-water/ remains absent from this checkout (out of scope for discovery, noted every run).