2 changes since v2.1.318, landing in 1 of 20 prompts.
Every prompt v2.1.319 sent, compared word for word with the capture before it. Each card is one edit, with every prompt it reached; the table after them shows where each one landed.
What changed 2
1
System prompt · under “Context management”
EndConversation deferred tool added, limited to sustained abuse or demos
A new line under Context management introduces EndConversation as a deferred tool. Claude may use it only for sustained user abuse aimed at the assistant or when the user explicitly asks to see it demonstrated, and it must first load the full guidance with ToolSearch("select:EndConversation"). The line appeared in only 1 of 23 captures, so it may be specific to one setup.
Behind a feature flag
+34−0 words
+EndConversation (deferred tool): use only for sustained user abuse directed at the assistant, or when the user explicitly asks to see it demonstrated. Load the full guidance via ToolSearch("select:EndConversation") before using it.
2
Appended context (skills, environment) · at “EndConversation”
EndConversation entry added to appended context in one capture
A single line reading "EndConversation" now appears in the appended skills and environment context. It landed in only 1 of 13 captures, so it is likely tied to one setup, and the diff shows no description of what it does.
Behind a feature flag
+1−0 words
+EndConversation
Where each change landed
Every prompt the release sent, one row each. A number is a change from the list above; click it to jump there. Rows with more than one model string count them, because each model gets its own copy of the prompt.
19 prompts did not move at all: Claude Code, default, Claude Code, seeded with anonymous feature flags, Agent SDK, default, Agent SDK, seeded with this account's feature flags, Agent SDK, seeded with anonymous feature flags, Slash commands: /init, Slash commands: /security-review, Slash commands: /team-onboarding, Compaction: Compaction instruction, System reminders: Claude md, System reminders: Hook pretool block, System reminders: Read empty, System reminders: Read offset, System reminders: Skill run, System reminders: Todo nag, System reminders: Toolsearch deferred, Subagents: explore, Subagents: general-purpose, Subagents: plan.
Set aside as capture noise
These change on every capture by construction, so they are masked before comparing and never counted as a change.
