diff --git a/.beads/interactions.jsonl b/.beads/interactions.jsonl
index a3d4658..eff48c5 100644
--- a/.beads/interactions.jsonl
+++ b/.beads/interactions.jsonl
@@ -54,3 +54,7 @@
 {"id":"int-b09e978b3baf1464ca5a83acbe78aca1","kind":"field_change","created_at":"2026-07-26T01:12:00.183044Z","actor":"dawn","issue_id":"hydrant-4xh","extra":{"field":"status","new_value":"closed","old_value":"in_progress","reason":"Implemented and benchmarked bounded discovery lookahead"}}
 {"id":"int-f94c2f4d9a604bad85e37f5e2a349d35","kind":"field_change","created_at":"2026-07-26T02:19:30.894005Z","actor":"dawn","issue_id":"hydrant-7bb","extra":{"field":"status","new_value":"closed","old_value":"in_progress","reason":"Benchmark found no beneficial fairness-preserving DID order"}}
 {"id":"int-791e1391001df4d33ca5d8e77e7fba95","kind":"field_change","created_at":"2026-07-26T08:46:35.184013Z","actor":"dawn","issue_id":"hydrant-90c","extra":{"field":"status","new_value":"closed","old_value":"in_progress","reason":"Implemented and verified opt-in relay-first deep discovery"}}
+{"id":"int-67048d6d43c20b4c9d54b1477d5dde02","kind":"field_change","created_at":"2026-07-31T20:13:54.334877Z","actor":"dawn","issue_id":"hydrant-3kc.1","extra":{"field":"status","new_value":"closed","old_value":"in_progress","reason":"Migration::Chunked with resumable passes, per-chunk budgets, and cursor-based resume landed in c7d311a; 116 lib tests + 13 feature-matrix combos pass"}}
+{"id":"int-f2e0ade1ed0c46244a88b5cad72cf108","kind":"field_change","created_at":"2026-07-31T22:57:02.438887Z","actor":"dawn","issue_id":"hydrant-3kc.3","extra":{"field":"status","new_value":"closed","old_value":"in_progress","reason":"Implemented and verified in fa0a755: interner, varint key format for records+counts, budget guard, dual-form read paths. 146 lib tests, 13/13 feature matrix, repo_sync_integrity passes, integration suite identical to pre-interning baseline (zero regressions). NOTE: not shippable without hydrant-3kc.7, and hydrant-3kc.6 measured the storage win as ~0 so the migration is currently a no-go."}}
+{"id":"int-1569cb9e86c603c6b3dfa8ff98a83fe4","kind":"field_change","created_at":"2026-07-31T22:57:22.007124Z","actor":"dawn","issue_id":"hydrant-3kc.2","extra":{"field":"status","new_value":"closed","old_value":"open","reason":"Baseline captured as the baseline arm of hydrant-3kc.6: records 50.43 B/rec, blocks 134.68, counts 0.22, total 228.26; peak RSS 712.2 MB, peak journal 531.4 MB. Artifacts at volsinii:/root/bench/ci-full-v2/."}}
+{"id":"int-3799ce76af39061e39f24487ac910a44","kind":"field_change","created_at":"2026-07-31T22:57:22.521926Z","actor":"dawn","issue_id":"hydrant-3kc.6","extra":{"field":"status","new_value":"closed","old_value":"in_progress","reason":"Measured: records -1.18%, counts -35.6%, total -0.10%, WAL -7.36%, RSS -2.71% at 10k repos/7.8M records. NO-GO for hydrant-3kc.7 — a 40% key reduction produced ~0% disk because prefix truncation already removed the repeated NSID text. Report at volsinii:/root/bench/ci-full-v2/analysis.md; hydrant-3kc.8 files the deterministic harness for few-percent effects."}}