de:wasserversorger-discover

The run completed fully in-turn: dispatched two synchronous research shards covering 60 singleton municipalities, resolved 54 (6 genuine unresolveds), minted 31 new companies with zero duplicate collisions, and merged everything through the full pipeline (map_roster → consolidate_roster → coverage → build_gv_layer).

Result: population coverage rose from 95.86% to 96.23% (municipalities claimed 9715→9769, residual now 1174/3.15M people), roster grew to 2674 companies, and the standing 27-domain-collision backlog stayed unchanged (no new collisions introduced). Journal updated with full detail, including a new environment finding (resolve_singleton.mjs can't run here — its _tasks dependency directory doesn't exist in this filesystem) and the remaining work queue (1152 singletons + the still-unresolved 10-unit multi-member pool awaiting a human decision).

Read CLAUDE.md and journal tail, then SKILL.md in full. On-disk state before starting: 2643 companies, 95.86% population coverage (9715/1228 claimed/residual) — matched the 20:30 enrich run's final numbers exactly after a fresh coverage.mjs/build_gv_layer.mjs. Multi-member pool unchanged at 10 units/22 municipalities.

resolve_singleton.mjs is unusable in this environment — new finding, not a regression. It reads gemeinden_deutschland.csv via TASKDIR = HERE/../../../../../_tasks/netzbetreiber-contact/ german-water, but this run's filesystem has no _tasks directory anywhere under / (confirmed with find). Skipped it and went straight to the WebSearch/Satzung method the SKILL itself says is what actually carried phase 1. Worth flagging to a human: either this environment is missing a mount other runs had, or the script's relative path assumption is stale — either way, don't spend a future run's first minutes debugging this again, just skip straight to manual research.

Same-day-unresolved filter turned out unnecessary this run: build_batch60.mjs's plain top-60 naturally included Schelklingen/Römhild/Weiler-Simmerberg/Sohland a.d.Spree (checked_at 08-30) since today is 08-31 — a day had passed, exactly as the last run's note anticipated, so no ad hoc filter was needed. build_batch60.mjs still has no built-in same-day exclusion; leave the ad hoc filter pattern documented in the 18:00 run's entry for whenever a same-day re-run needs it again.

Batch: top-60 singletons by residual_population, split 30/30, dispatched as shards "shardA-2200"/"shardB-2200", both subagents run_in_background: false in one message, mandatory no-Agent-tool instruction, full method + schema + host-trap list inlined directly in the prompt. Company_id ranges wv-de-18855–18884 / 18885–18914.

Shard A: 24/30 resolved, 6 unresolved. 15 new companies minted (wv-de-18855–18869), 9 links reused via existing roster. Caught its own overlap with same-day prior work: grepped roster-links.jsonl by AGS before starting and found 4 of its 30 already had same-day UNRESOLVED rows. Deferred to precedent on Schelklingen/Römhild (no stronger evidence), but upgraded Sohland a.d. Spree to resolved — the prior pass only checked kwbz.de's homepage, this pass fetched kwbz.de/unser-wasser which explicitly names Sohland in Kreiswerke Bautzen's supply-area list. New unresolved (genuine, not precedent-repeats): Berga-Wünschendorf (merged town, two halves under two unreconciled Zweckverbände), Gmund a.Tegernsee (fragmented across 5 Wasserversorgungsvereine), Leun (checked ZMW member list, Lahn-Dill-Kreis regional index, and the town's own site — genuine gap). Two low-confidence self-supply calls flagged where inferred from absence of an external Verband rather than an explicit sentence (Schlüsselfeld, Geltendorf) — documented, not upgraded.

Shard B: 30/30 resolved, 0 unresolved. 16 new companies minted (wv-de-18885–18900), 14 links reused via existing roster, including GeWaS's member list resolving two batch entries (Brotterode-Trusetal, Floh-Seligenthal) from one fetch. Caught a genuine name-collision trap (two unrelated Bruckbergs, Landkreis Landshut vs. Landkreis Ansbach) without merging them. Two medium-confidence self-supply calls (Affing, Bad Emstal) where external Verbände were actively checked and ruled out first, not just absent.

Duplicate-mint check: 0 new collisions. Cross-shard-plus-roster domain-collision check run before merge found only the standing 27 (same six known duplicate-mint pairs as every run since 08-29), none touching either new shard. Neither subagent minted a duplicate this time.

Merge/finish: all 4 shard files validated as well-formed JSONL before trusting them (15/16 new companies, 30/30 link rows each). map_roster.mjs: 13013 → 13073 roster-links rows (+60, exact), needs-review queue unchanged at 741. consolidate_roster.mjs: 2895 shard rows (221 dupes) → 2674 distinct companies (+31 = 15+16, exact). coverage.mjs: municipalities claimed 9715 → 9769 (+54 = 60 dispatched − 6 unresolved, exact), population 95.86% → 96.23% (+0.37pp), residual 1228 → 1174 municipalities / 3.461M → 3.152M people. build_gv_layer.mjs: multi-member pool unchanged at 10 units/22 municipalities, singletons 1206 → 1152 (-54, exact). Final domain-collision check on merged roster.jsonl: 27, none new.

Crossed 96% population coverage this run.

For next run: continue singleton batches by residual_population descending — 1152 singletons remain, largest ~5.8k people (Berga-Wünschendorf, Gmund a.Tegernsee, Leun just joined the unresolved pool, checked_at 2026-08-31, alongside the still-standing Schelklingen/Römhild/ Weiler-Simmerberg — all genuinely re-checked and confirmed empty this run or a prior one; wait a day before re-including). The 10-unit/22-municipality multi-member queue is still awaiting a human decision (4+ failed automated methods across several prior runs) — do not spend another run on it without new information. Standing 27-domain-collision backlog unchanged (six known duplicate-mint pairs), still awaiting the overdue human consolidation pass. resolve_singleton.mjs's missing _tasks dependency (above) is worth a human fix or a documented skip in SKILL.md so it stops costing each run a debugging detour.