GitHub shipped its weekly Copilot update on August 7 covering the desktop Copilot app, the Copilot CLI, and VS Code 1.132, and the common thread across all three is reducing context-switching cost during long agent sessions. The CLI's new experimental /worktree command spins up an isolated git worktree and a separate conversation on demand, so a developer can explore a fix or investigate a side issue in a clean copy of the repository without disturbing the state of whatever the primary agent session is already mid-way through changing. That matters because one of the most common failure modes in agentic coding tools is an agent's uncommitted changes colliding with a developer's own exploratory edits; isolating sessions into worktrees sidesteps that entirely. VS Code's new /btw command does something similar for conversations rather than files: it opens a side chat that still shares context and prompt cache with the main conversation, so a developer can ask a clarifying question without losing the agent's current turn or paying to rebuild context from scratch. The CLI also added a Sessions sidebar with keyboard shortcuts for juggling multiple concurrent sessions, live tool-call duration timers to spot slow commands, and a /rewind option that restores prior conversation state without relying on git. VS Code 1.132 separately adds element-level feedback in its integrated browser, letting a developer click specific UI elements and attach comments the agent can act on directly, plus on-device multilingual dictation. None of these are new capabilities in isolation, but bundled together they reflect a broader trend of coding agents being re-architected around parallel, resumable sessions rather than a single linear chat.