Slash timeline feature

[maddy551998]

Live Execution Timeline (Simple Explanation)

What is this feature?

Live Execution Timeline is a panel in the terminal UI that shows what the agent is doing step by step.

Instead of waiting blindly, you can see:

• which tool is running
• which step finished
• where an error happened
• how long each step took
• token and cost changes per step

Why is it useful?

• Easy to understand progress during long tasks
• Easier to debug failures
• Easier to trust agent behavior

How to open and use it

Open timeline:

• /timeline show
• or Ctrl+Shift+L (toggle)

Hide timeline:

• /timeline hide

Clear old rows:

• /timeline clear

Navigate inside timeline:

• Up / Down or j / k to move
• Enter (or Right / Space) to expand selected row
• Left to collapse
• Esc to move focus back to input

If focus is lost after Esc, use /timeline show again.

Example (normal run)

You ask:

"Read README and summarize changes in src-rust/crates/tui"

Timeline can show:

[done] [tool] Reading file: README.md
[done] [tool] Searching code: timeline
[done] [tool] Running command: cargo fmt --all
[done] [turn] Assistant turn 2 finished

If you press Enter on a row, details appear, for example:

Reading file: README.md | Done | 435ms
Preview: README.md
Details: Read first 200 lines and extracted key sections.

Example (error case)

Timeline can show:

! [note] Error: failed to parse config

Expanded details show the error text so you can quickly see what failed.

Quick notes

• Wide terminal: timeline appears on the right.
• Medium terminal: timeline appears at the bottom.
• Small terminal: compact details mode is used.