v2.0.52 had 18 tools: Task, Bash, Glob, Grep, Read, Edit, Write, WebFetch, WebSearch, TodoWrite, NotebookEdit, BashOutput, KillShell, AskUserQuestion, Skill, SlashCommand, EnterPlanMode, ExitPlanMode.
Gone since: BashOutput, Glob, Grep, KillShell, SlashCommand, Task, TodoWrite
New since: Agent, Artifact, ArtifactComments, ArtifactData, CronCreate, CronDelete, CronList, DeferredToolPlaceholder, DesignSync, EndConversation, EnterWorktree, ExitWorktree, ListAgents, Monitor, PushNotification, RemoteTrigger, ReportFindings, ScheduleWakeup, SendFeedback, SendMessage, TaskCreate, TaskGet, TaskList, TaskStop, TaskUpdate, ToolSearch, Workflow, advisor
Prompt text: v2.0.52 5,544 characters of prompt text on the archived page; v2.1.317 8731 characters in the system blocks, plus the context sent as system-reminders (Injected Context).