[Feature]: Session recap when returning to a thread after being away

[Ashishjain608]

Summary

The Claude Code CLI shows a short recap when you return to a session after being away for 5+ minutes: a quick summary of what the agent did while you weren't looking. T3 Code has no equivalent, so coming back to a thread means scrolling the trace to work out where things landed.

Why it matters

Running several threads at once and stepping away mid-turn is a big part of why I use T3 Code. The recap is what makes that cheap in the terminal, one line and you're re-oriented. Without it every return is a manual re-read, and it gets worse the more threads you keep going.

Turn-completed notifications help, but they tell you that a turn finished, not what happened.

Current state

This doesn't look like a setting users can flip. Recap is implemented in the CLI's interactive TUI, not in the Agent SDK that T3 Code drives. Grepping the shipped bundle (app.asar, 0.0.34-nightly.20260819.1133):

• awaySummaryEnabled appears only as an SDK option schema, "@internal When false, the session recap (shown when you return after being away for 5+ minutes) is disabled. When absent or true, recap is enabled." Nothing reads it.
• ccrRecap is declared on conversation state and never referenced.
• There is no recap generation or rendering code.

So CLAUDE_CODE_ENABLE_AWAY_SUMMARY and settings.json have no effect here. It needs T3-side support.

Proposal

When a thread has been unfocused for N minutes and one or more turns completed in that window, show a recap marker in the timeline at the point you re-enter: "While you were away: ...", summarizing the turns you missed.

Smallest useful scope

One line on re-entry, generated from the assistant messages since the thread last had focus. No settings, no persistence, no new surface, just the divider in the timeline. A toggle can come later if it turns out to be noisy.

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T3 Code 0.0.34-nightly.20260819.1133, macOS 26.6.1, Claude provider (Claude Code 2.1.235)

[OffCrazyFreak]

Big +1 from me, this is honestly the one Claude Code CLI feature I miss most when juggling several threads in T3 Code. Thanks for writing it up so thoroughly!

I re-checked the SDK side today in case anything had moved: in @anthropic-ai/claude-agent-sdk 0.3.274 (latest on npm, T3 pins ^0.3.260), awaySummaryEnabled is still just an @internal entry in the options schema, and nothing in sdk.mjs generates or emits a recap. The Claude Code docs also say the recap "is always skipped in non-interactive mode" (https://code.claude.com/docs/en/interactive-mode#session-recap), so it looks like this stays a T3-side feature for the foreseeable future.

A few thoughts on the smallest version, building on the proposal above, in case it helps whoever picks this up:

• Trigger only when at least one turn completed while the thread was not the focused one (or the window was blurred), so an active thread never shows a recap.
• Feed it the assistant text of the turns completed in that window rather than the tool trace, which keeps the prompt small.
• One line, capped at a few hundred characters (the CLI caps at 400), rendered as a divider at the re-entry point, right where the unread marker would sit.
• Generate it with the cheapest model the provider offers, outside the thread's own session, so it never touches the thread's context or prompt cache.

Happy to test a nightly whenever this lands. Thanks for all the work on T3 Code!