[shxntanu]

The index route waits for every enabled environment before opening a composer, even when a loaded project is available. A slow environment can leave the main pane blank.

Select the most recent project among those already loaded and open its draft immediately. Keep the global readiness gate before declaring the workspace empty, together with the existing navigation, project-existence, attempt and retry guards. Merge current main and keep its React Compiler conventions.

Continues @shxntanu's work in #20183, fixing #18599.

Verification:

• PR-specific tests: 0 → 0; 180 existing tests across four relevant suites pass (new-thread handling, entities, relationship shells, sidebar logic). No route harness was added just to assert wiring.
• Scoped web typecheck, targeted lint, formatting and diff checks pass.
• One independent adversarial review round: Claude Opus 5.5 and Codex GPT-6 Sol found no code blockers. Kept the implementation agent's removal of a redundant attempt comment; the attempt guard itself is unchanged.
• Actual isolated Linux Chromium app: with a loaded local project and another environment still pending (global bootstrap false), navigating to the index was blank before and opens a usable draft after. This exercises index navigation; a full reload's existing-thread welcome redirect was not used as evidence.
• With zero loaded projects, no empty-workspace hero appears while an environment is pending; the hero appears after readiness. A project arriving after navigation to Settings leaves Settings open.
• CI follow-up: the first web run failed waiting 1,000ms for syntax highlighting in an unchanged standalone WorkflowOpeningBlock test. Its focused Chromium suite passes (3 tests), using the available Chromium 154 instead of CI’s expected 148; this is not equivalent to a passing CI run. Failed GitHub jobs were rerun at the same head; Test Web and the aggregate Check now pass (CI attempt 3). No source or test change was needed.
• Tradeoff: a loaded project's draft may open before a more recent project arrives from a slower environment.

Before: available project, blank index	After: draft opens while the other environment is pending

Before recording · After recording

macOS, Windows, iOS, Android and Electron desktop were not verified. Mobile uses its own navigation and was not changed. Local CI results do not substitute for current-head GitHub CI.

Implementation: Codex GPT-6.1 Sol, Codex harness in T3 Code. Test audit: Codex GPT-6 Astra. Review: Claude Opus 5.5 and Codex GPT-6 Sol.

[macroscopeapp]

Approvability

Verdict: Approved at 9011c5e

Macroscope's review found this PR approvable — This is a focused fix to the existing startup handoff, allowing an already-loaded project to open while unrelated environments remain pending. Empty-workspace detection and existing navigation/project safety guards remain gated and unchanged.

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Reviewing files that changed from the base of the PR and between 9011c5e and bcba3c5.

📒 Files selected for processing: 1

• apps/web/src/routes/_chat.index.tsx

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• apps/web/src/routes/_chat.index.tsx

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📝 Walkthrough

The landing route now selects the most recently updated project while environments are still bootstrapping. It shows the no-projects hero only after bootstrapping completes.

Changes: Project landing behavior

Layer / File(s)	Summary
Project selection and landing rendering apps/web/src/routes/_chat.index.tsx	The route derives the most recently updated project regardless of bootstrap status. It no longer hides the landing page while environments load. If no project is available, it waits for bootstrapping to finish before showing the no-projects hero.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Bug fix · Severity of issue fixed: Low

Suggested reviewers: juliusmarminge

Merge Risk: ⚪ Minimal · up to 9011c

The composer can open as soon as a project is available, while the no-projects screen waits for bootstrap to finish. The observed selection behavior matches the stated startup tradeoff, so no material merge blocker remains.

Security architecture risk: 🔵 Low · up to 9011c

The change is limited to opening an already available project sooner, while the empty-workspace actions still wait for startup to finish. No security regression is confirmed, but project-removal, navigation, and failure handling could not be fully verified.

Retained concerns
No architecture-level concerns identified.

Security review details

Security Blast Radius

• inferred — The demonstrated exposure change is earlier automatic entry into the existing project-draft flow. The route classification alone does not establish a new remotely callable operation, additional privileges, or broader cross-environment authority.

Pre-merge checks: 4

Check name	Status	Explanation
Title check		The title clearly describes the primary change: opening the startup composer without waiting for every environment.
Description check		The description covers the problem, implementation, scope, linked issue, verification results, screenshots, recordings, limitations, and tradeoffs. It does not reproduce the template headings exactly,…
Linked Issues check		The description links PR #20183 and issue #18599. The stated change directly addresses the linked blank-startup behavior.
Out of Scope Changes check		The change is limited to one web route and matches the stated objective. The summary reports no public API changes or unrelated modifications.

Full details: Description check

Explanation

The description covers the problem, implementation, scope, linked issue, verification results, screenshots, recordings, limitations, and tradeoffs. It does not reproduce the template headings exactly, but it provides the required information.

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[juliusmarminge]

Taking over this one. I will preserve your commit, adapt the startup draft gate to current main, and verify that a loaded project opens while another environment is pending, with navigation and empty-workspace guards retained. Thanks @shxntanu for the smallest focused fix.

[shxntanu]

Awesome, thanks!