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TermRock
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Component · Visualization

Checkpoint Timeline

Rewindable session history — browse/preview (draft preserved), restore/rewind with safe confirm and boundary warnings.

Kind
widget
Input
interactive
Canvas
120×40

Live preview

Loading terminal preview.

Static terminal poster. Choose Run live to start the Rust demo.

Ghosttycheckpoint-timeline/basic
Loading terminal poster…
○ loading posterNo input — rendered state only
Checkpoint Timeline · exact mounted Rust story
01 · Purpose
What it is for
Rewindable session history — browse/preview (draft preserved), restore/rewind with safe confirm and boundary warnings.
Best fit: Visualization · visualization · widget
02 · Behavior
What the mounted story proves
  1. 01
    CheckpointTimeline
    Representative 120×40 terminal state.
  2. 02
    Passive paint
    No keyboard or pointer action is claimed by this representative story.
  3. 03
    Evidence stays explicit
    0 covered · 9 partial · 5 missing axes.
03 · Implement
Install, then start from exact code
Install
cargo add termrock --git https://github.com/tailrocks/termrock.git --rev 5283c2acf9154d0cfcd37b1ffe821c00faf90ea2
Add TermRock once. Keep domain effects in the host application.
Minimal implementation
Exact Rust setup used by checkpoint-timeline/basic.
Open to load code.
04 · Adapt
Variants and composition
Variants
Use the preview Variant menu when alternate registered stories exist. Each selection mounts a fresh configuration.
Composition
Visualization · visualization · widget
05 · Reference
API, tokens, accessibility
API
CheckpointTimelineOpen source ↗
Tokens
DesignSystemInspect exact story code for roles and capability projection.
Accessibility
Input contract mountedNo input claim in the representative story.
Contract
Evidence in progress0/23 axes covered
06 · Go deeper
Advanced guidance
Authored implementation guidance
Session checkpoint browser. Outcomes are requests only; host owns
persistence and restore I/O. Never clears PromptComposer draft.


When to use / when not


Use CheckpointTimelinePrefer
Agent session restore / rewind—
General deploy/CI chronologyTimeline
Field value historyHistoryPicker (if present)
Patch compareDiffReview via CompareRequested


Modes


ModeMutates session?
BrowseNo
PreviewNo (draft preserved)
ConfirmRequest only — host executes


Confirm defaults focus to Cancel.


Boundaries


Soft · Dirty workspace · External effects · Irreversible (blocked)


Keys


j/k · Enter preview · r restore · w rewind · c compare · Esc · confirm ←/→ Enter
Ownership boundary
TermRock owns reusable terminal rendering and interaction state. The host owns domain data, policy, persistence, authorization, and side effects.
Evidence status
0 covered, 9 partial, and 5 missing contract axes. Missing evidence is not a behavior claim.
Chart
Legend, axes, thresholds, selected point.
Gauge
Single-value gauge with thresholds.