{"version":"2.1.319","anchor":"tool-container-restart-header-tracked","canonical_anchor":"tool-container-restart-header-tracked","heading":"Remote sessions notice when a tool container was restarted","tier":"internal","area":"Sessions","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.319\/e\/tool-container-restart-header-tracked","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.319","markdown":"### Remote sessions notice when a tool container was restarted\n\nClaude Code now records a server signal that a remote tool container was replaced or restarted\n\n**What**\n\nIn remote sessions, tools run in a container, which is an isolated environment on a server. Claude Code now reads a response header, `x-ccr-tool-container-restart`, whose value is replaced or restarted, and records it for each address. A header is a small label sent with a server's reply. Claude Code already tracked a similar header that says a container's host is shutting down.\n\n**Why**\n\nA remote session can now tell that its tool container was restarted.\n\n- Area: Sessions\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 2\/5\n- Scope: individual\n- Heads-up: no"}