Agent Timeline

Everything a run did, in order: follow it live, or inspect it step by step.

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Category
AI Agent
Access
Pro
Source
710 lines · one file
States
9 drawn

The decision inside it

It only stops following when you scroll up

New rows always push down. Treating any scroll as "the reader left" makes a busy run unstick itself, so only an upward move does it.

When to use it

Use Agent Timeline for everything a run did on one rail: thoughts, tool calls, messages, approvals and errors, with filter tabs counted from the events and live following of new rows. Nested steps set parentId.

Installation

How you get it

Paste this into Claude Code, Cursor, Codex or any coding agent. It installs the file and uses it as it is, instead of writing a new one.

Use Liro's Agent Timeline for this.
Install it: npx shadcn@latest add @liro/agent-timeline
(the @liro registry is set up in components.json, with LIRO_KEY in .env.local)
Import it from @/components/ui/agent-timeline.
Do not rewrite or restyle it. Pass my data through its props
and keep its built-in states.

For the full brief with every prop and the mistakes assistants usually make, use Copy prompt above. Pro components install through the @liro registry with your CLI token: see the Namespaced tab.

Usage

components/run-timeline.tsx
import { AgentTimeline, type TimelineEvent } from "@/components/ui/agent-timeline";

const events: TimelineEvent[] = [
  { id: "1", kind: "user", title: "Chase unsigned agreements", time: "09:12" },
  { id: "2", kind: "tool", title: "Searched documents", status: "done", input: { status: "unsigned" }, output: { count: 1 } },
  { id: "3", kind: "approval", title: "Email Vertically?", status: "waiting" },
];

export function RunTimeline({ live }: { live: boolean }) {
  return <AgentTimeline events={events} live={live} listClassName="max-h-[480px] overflow-y-auto" />;
}

API reference

“Copy prompt” above puts a full brief on your clipboard, install command, dependencies, props, and the mistakes an assistant usually makes with this component.

Props

Read from the component’s own TypeScript interface when the site is built, so this table cannot drift from the file you install.

TypeNotes
eventsTimelineEvent[] Yes–
liveboolean NoFollow new events down, and offer "Jump to latest" once you scroll away.
filtersboolean NoShow the filter tabs. Default true.
filterTimelineFilter No–
defaultFilterTimelineFilter No–
onFilterChange(filter: TimelineFilter) => void No–
emptyReact.ReactNode NoShown when there is nothing to list.
listClassNamestring NoClasses for the scrolling list, to give it a height.
runTimelineRun NoA header for the run: id, name, status, time, tokens, cost.
filterBy"kind" | "status" NoFilter tabs by kind of event (default) or by status.
onRetryEvent(event: TimelineEvent) => void | Promise<void> NoAdds Retry to failed steps. May return a promise.
onCopy(event: TimelineEvent, part: "input" | "output") => void NoTold after an input or output is copied.
redact(value: unknown, part: "input" | "output", event: TimelineEvent) => unknown NoRuns over inputs and outputs before they are shown or copied: hide keys, tokens, emails.
selectedIdstring NoThe step being inspected: marked, and opened.
onSelect(event: TimelineEvent) => void No–

Dependencies

npm packages

clsxframer-motionlucide-reacttailwind-merge

Liro foundations, installed alongside it

liro-themebuttontabs

States

All of them are drawn by the component. None is left for you to design.

  • Running
  • Waiting
  • Failed
  • Done
  • Filtered
  • Following
  • Inspecting a step
  • Retrying
  • Empty

Accessibility

  • Keyboard reachable throughout, in visual order
  • Focus trapped in overlays, Escape closes them
  • Focus returns to whatever opened it
  • Live regions announce what changed, not that something did
  • Honours prefers-reduced-motion

Responsive behavior

  • Sizes to its container, not the viewport
  • Usable from 320px up
  • Pointer-based interaction, so trackpad and touch both work
  • No hover-only affordances