[BunsDev]

Part of #277 (CF-4), the typed-turn slice. The Markdown parser and code-block slice is #283, from the #273 session; this PR does not touch Markdown.tsx, CodeBlock.tsx, package.json or the lockfile. Built on CF-1's contract (#282, merged as 7780093).

What changes

The transcript lays out each turn from the conversation-event fields CF-1 added, instead of by position.

• shared/turn-layout.ts (layoutTurn): for one turn it decides the final answer, the live items, the work that may fold, and where a later attempt starts. It is pure and unit-tested.
  • Final answer: the latest attempt's final-phase message, never array position. When the CLI gives no phases (Claude), it is the latest attempt's last reply. An earlier attempt's answer is never reused after a retry.
  • Live: every item still running, so two items can stream at once.
  • Folding: only work that succeeded folds (succeeded tools, finished reasoning, earlier replies, answered requests). Failed, denied, stopped and unknown work, pending requests and notices stay in view, and folded rows stay mounted.
  • Legacy: items saved before the contract keep the last-reply and newest-item heuristics, isolated in this one function.
• components/transcript/TurnContent.tsx: moved out of ThreadView.tsx. It renders from layoutTurn, with an "Attempt 2" divider before each later attempt.
• components/transcript/ReasoningItem.tsx: a reasoning row is tagged Summary for a provider summary, or Not shared, with timing only, when no readable text came. Provider text shows untagged.
• Assistant replies: commentary reads as progress. A reply that stopped says "Stopped before it finished", and one that never completed says "This reply may be incomplete".
• Jump to latest: shown once the reader scrolls away from the bottom. New output never pulls them back down; the button returns to the bottom and resumes following. The 80 px follow threshold is unchanged.
• Tool folding: toolFoldsAsWork no longer folds unknown tools; unresolved work stays visible.

Evidence

Base 7780093. Head: the three signed commits above. The rebase from the CF-1 branch left the tree byte-identical (git diff before and after: 0 lines).

• Red first.
  • test/turn-layout.test.ts: 8 cases, written before the module existed.
  • e2e/typed-turns.spec.ts: on the renderer before wiring, all 4 original tests failed. There were no final, live, attempt or Jump to latest markers; the log is kept.
  • The toolFoldsAsWork expectation change was not run red on its own.
• Unit tests, full pnpm test on the CF-4 tree before the last e2e and docs commit: the first stage ran 1,522 tests, with 1,506 passed, 0 failed and 16 skipped (skips that already exist). The second stage passed 21 of 21.
• Full e2e, pnpm test:e2e, same tree: 321 passed, 3 skipped, 1 failed.
  • The failure was the new theme test. Test 2's switch to running reloads the thread from main and drops earlier injected items, so it couldn't find them.
  • It now sends its own turn. typed-turns.spec.ts then passed 5 of 5 on two consecutive runs.
• Themes at 900×600: in Graphite, Jev and OpenCoven, a typed turn shows no sideways scroll, and the final answer, denied tool, Summary tag and attempt divider are all visible. Each run attaches a screenshot per theme; MODEX_SCREENSHOTS=<dir> keeps them.
• Load average during the runs was about 190–250, from other sessions' builds.

Not covered here (#277 stays open)

• The Markdown parser, code-block controls and unsafe-link cases: Render transcript Markdown with CommonMark and GitHub's extensions (CF-4 parser slice) #283.
• Long-transcript and streaming performance measurement.
• Selection and keyboard focus through sustained updates, and draft continuity across thread switches, have no new test here. The existing behaviour is unchanged.
• Human VoiceOver acceptance and reduced-motion review. The new elements add no animation.

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated
modex	Ready	Preview	Oct 18, 2026 8:20am UTC

[BunsDev]

Review from the #273 tracker session, at head 4932767. One finding, plus a note on overlap.

Every Codex web search now stays unfolded. This PR stops toolFoldsAsWork from folding unknown, which is right for #277. But codexOutcome (from #282, unchanged here) returns unknown for every Codex webSearch. The reason: codex-cli 0.163.0's WebSearchItem has neither a status nor an error field ({ id, query, action, … } in codex app-server generate-ts). So item/completed is the only report a web search ever makes, and it can never be anything but unknown today. With this PR, every web search in a finished Codex turn stays in view under "Worked for …", although nothing about it is unresolved.

Suggested fix: treat a status-less web search's completion as what it is.

// backends/codex.ts, codexOutcome: replace the last line
  if (item.error) return "failed";
  return item.status === undefined && item.type === "webSearch" ? "succeeded" : "unknown";

• Test: replace assert.equal(codexOutcome({ type: "webSearch" }), "unknown", "web search reports no status") in test/conversation-events.test.ts with "succeeded".
• Contract doc: the row | no status (web search), no error | unknown | becomes succeeded, with that reason.

unknown then keeps meaning what this PR's folding rule needs: the stream ended before the tool reported. I have this change with its test as local commit c378c9b on cf4-turn-outcomes (never pushed); take it or write your own.

Overlap. I'd started the same slice locally on cf4-turn-outcomes: reasoning tags, not folding unknown, and Jump to latest at the 80 px threshold. When I saw this PR I stopped it and discarded the uncommitted Jump to latest work; nothing of it will be pushed. #283 (parser, code-block Copy) stays mine. Both PRs add a bullet at the end of "On main, unreleased" in docs/status.md, so whichever lands second resolves that one conflict.

[github-code-quality]

Code coverage overview

Languages: TypeScript

TypeScript / code-coverage-agent

main 7780093	cf4-typed-turns 4932767	+/-
62%	62%	0%

View coverage of the 5 most impacted files.

File	main 7780093	cf4-typed-turns 4932767	+/-
apps/desktop/sr...asoningItem.tsx	0%	0%	0%
apps/desktop/sr...TurnContent.tsx	0%	0%	0%
apps/desktop/sr...ation-events.ts	99%	99%	0%
apps/desktop/sr...tool-summary.ts	100%	100%	0%
apps/desktop/sr.../turn-layout.ts	0%	100%	+100%

ℹ️ Calculations represent line coverage. Results may change as calculations are updated.