Files
zero/internal/tools/preview.go
KRATOS 0e7318ff72 feat(tui): clickable plan-step detail + plan/sidebar UX & rendering polish (#315)
* fix(tui): plan panel reflects live progress + prompt cadence

The plan panel could read as stuck mid-task even while work continued. Three
fixes:
- Header showed steps[0] forever, so the title never advanced as the plan
  progressed; show the current step (in_progress, else first incomplete).
- updateFromItems matched steps by content only, so an in-place reword reset a
  step's elapsed timer to zero; add positional carry-over when the step count is
  unchanged.
- Prompt: tell the model to mark each step completed + the next in_progress
  before starting it, so the plan tracks real progress instead of jumping at the
  end.

Regression tests included.

* feat(tui): click a plan step to see what was built for it

Each plan step now records the file mutations (write_file/edit_file/apply_patch)
made while it was in_progress, captured from tool-result rows. Clicking a step
row in the context sidebar drops a transcript card listing those changes — the
implementation for that step. Step->line mapping mirrors sidebarAgentSelectables'
offset accounting (one line per step); capture is keyed to the active step and
cleared per run. Read-only and additive. Tests cover the offset math + capture.

* feat(tui): plan-step detail shows diffs + commands

Extend the clickable plan-step detail: capture bash/exec_command runs in addition
to file mutations, store each tool's full output (the diff for edit/apply_patch,
stdout/stderr for commands), and render the card grouped into Changes and
Commands with a short truncated excerpt of each item's diff/output.

* fix(tui): plan-step detail toggles instead of stacking duplicates

Re-clicking a plan step now hides its card (a stable transcript id + drop-by-id),
and clicking a different step replaces it, so at most one detail card is shown.
Previously each click appended a fresh card and they piled up.

* feat(tui): elaborate plan-step detail by status (what we did / will do)

* feat(tui): plan-step card leads with a prose explanation (agent's own narration)

* feat(tui): write plan-step explanations with the model on click

Clicking a PLAN step now shows a fresh, plain-English write-up of that
step, generated on demand by the active model:

- past tense ('what we did') for completed/failed steps, future tense
  ('what we'll do') for pending/in_progress steps
- immediate feedback: the card drops in showing 'Writing explanation…'
  and updates in place (by stable row id) when the text returns
- cached per step (content+status) so re-clicking is instant with no
  second model call; re-clicking still toggles the card closed
- the prompt is built from already-captured local data (step text,
  status, notes, plus a compact digest of file edits, commands, and the
  agent's narration) and asks for short, non-technical prose
- reuses the TUI's existing provider via a one-shot StreamCompletion;
  no new client, no hardcoded provider. Falls back to the local summary
  when no provider is configured or the request fails.

* fix(tui): minimal plan-step card styling (dim border, status-tinted title)

* feat(tui): auto-hide context sidebar when it has no agents or plan

* feat(tui): widen chat reading column to fill wide terminals with breathing room

* fix(tui): toggle context sidebar silently (no transcript notice)

* fix(tui): mark plan complete when a finished task forgot the final update_plan

* fix(tui): remove the lime streaming-text glow (render responses in static ink)

* fix(tui): remove the shaded panel band behind tool-result cards

* fix(tui): Ctrl+B hides the plan entirely (no pinned-panel fallback)

* style(tui): gofmt-align model struct fields

* feat: narrate the build as a clean story (hide plumbing cards, live plan progress, narration prompt, write_file line counts)

* feat(tui): render agent narration bright (ink) so the build reads as a story

* feat(agent): demand an elaborate, structured closing summary (not a single line)

* feat(tui): mark agent narration with a leading bullet (selection-aligned)

* feat: post-turn recap line (※ recap:) with /config recaps on|off toggle

* feat(tui): show 'still generating…' during quiet stretches + count tool-call streaming

* feat(tui): ACTIVITY panel under PLAN + push the model to step the plan per file

* fix(tui): show the quiet 'still generating' hint only when the sidebar is hidden

* feat(tui): code preview in write/edit/apply cards (card-only, no model token cost)

* fix(tui): address CodeRabbit review — stale plan timestamps, stale explanation, Ctrl+B persistence, UTF-8 truncation

* fix: address CodeRabbit re-review round 2 (7 actionable + 2 nitpicks)

* chore: drop accidentally-committed WIP internal/cli/dryrun_test.go

It is an unrelated, pre-existing dry-run test that does not compile (references a
non-existent agent.Options.DryRun field, an unused import, and out-of-scope
sandbox symbols). It was swept into the prior commit by 'git add -A' and is not
part of this PR's scope.
2026-06-25 20:23:29 +05:30

25 lines
949 B
Go

package tools
import (
"fmt"
"strings"
)
// previewBodyLines caps a card-preview diff to a glanceable head; the remainder
// is summarized with a "… +N lines" trailer. The preview is card-only (Display.
// Preview) — the model never sees it — so this bound is purely about readability.
const previewBodyLines = 15
// capPreviewDiff caps an already-formed unified diff (e.g. an apply_patch payload,
// which the model supplies pre-diffed) to a glanceable head, appending "… +N
// lines" when truncated. Writes/edits synthesize their diffs via boundedUnifiedDiff.
func capPreviewDiff(diff string) string {
lines := strings.Split(strings.TrimRight(diff, "\n"), "\n")
const headCap = previewBodyLines + 4 // headers + a hunk of body
if len(lines) <= headCap {
return strings.Join(lines, "\n")
}
out := append([]string{}, lines[:headCap]...)
return strings.Join(append(out, fmt.Sprintf("… +%d lines", len(lines)-headCap)), "\n")
}