{"version":"2.1.281","anchor":"new-cancellation-texts-for-tool-calls-when-a-turn-errors","canonical_anchor":"new-cancellation-texts-for-tool-calls-when-a-turn-errors","heading":"New cancellation texts for tool calls when a turn errors","tier":null,"area":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.281\/e\/new-cancellation-texts-for-tool-calls-when-a-turn-errors","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.281","markdown":"### New cancellation texts for tool calls when a turn errors\n\nTool calls cancelled because a turn failed now come with a message saying so, including one for an image that could not be sent\n\n**Unclear.** The finding does not say whether these messages are shown to the user or only passed to the model.\n\n**What**\n\nA tool call is a single action Claude takes, such as reading a file or running a command. When a turn, one round of Claude responding, ends on an error, pending tool calls are cancelled with one of two new messages:\n\n- \"The turn ended on an error, so this tool call was cancelled...\" followed by the error.\n\n- \"An image in this turn could not be sent to the API, so this tool call was cancelled. If it had already started, some of its effects may have happened.\"\n\n**Why**\n\nA cancelled action now says why it was cancelled and warns that it may already have partly run, so it is worth checking whether it changed anything."}