subagenttasks

Fleet grounding sections: llms.txt ## Grounding on 16 primitives

DONE 2026-07-02: the deck/coworkers grounding pattern propagated to the machine surface fleet-wide. Each of 16 D1 primitives' llms.txt now carries a ## Grounding section (via the kit llmsTxt extra param — zero kit changes, zero collateral staleness): one verified grounding statement + canonical .md source URL (claude-tag how-it-works/agent-identity, platform citations/memory/define-outcomes/permission-policies/vaults/session-operations/tools/webhooks, plugins/overview for skills/roles/code). Quotes only where verified this session (thread-is-durable, fetch-the-object-directly); grounded-in fact statements elsewhere — no fabricated quotes. All 16 through worker-build gates, deployed (256c630f…cddb92d6), locks recorded, 16/16 curl-verified live, --stale clean. Agents reading any primitive now get the citation trail to Anthropic canonical docs — flywheel stage-6 in both directions.