[CNSeniorious000]

Start a fresh editing session when the prompt slug changes; preserve unsaved edits for query-only navigation. Serialize prompt runs on shared Pyodide, prepare context before execution, and ignore output or startup from an unmounted page.

Verified production navigation and Monaco cleanup. Chromium tests of the real page with deferred runtime stubs cover navigation before startup and during a running prompt: runs do not overlap and old output stays out of the new page. Build and lint pass.

Closes #313. Based on #310 to preserve its run-button accessibility changes; merge #310 first.

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[vercel]

Project	Deployment	Actions	Updated
promplate-docs	Ready	Preview	Oct 29, 2026 11:40pm UTC

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-29T23:38:55.097883Z	1a24743	New commits

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[sourcery-ai]

Hey - I've found 1 issue

Prompt for AI Agents

Please address the comments from this code review:

## Individual Comments

### Comment 1
<location path="src/routes/prompts/[...slug]/+layout.svelte" line_range="7" />
<code_context>
+  const { children, params }: LayoutProps = $props();
+</script>
+
+{#key params.slug}
+  {@render children()}
+{/key}
</code_context>
<issue_to_address>
**New prompt shows stale output**

When navigation changes the slug while the previous page's Python run is pending or waiting for `getPy()`, the destroyed page's `onMount` resumes after `getPy()` and calls `reRun()` with its old prompt while the new page starts `py.runPythonAsync` on shared Pyodide; the new `setStdout` handler receives old output, and overlapping execution can fail, so the new prompt shows stale or incorrect output or a run error.

Invalidate runs from the previous page and serialize access to shared Pyodide so an obsolete page cannot start an old-prompt run or route its output to the new page.
</issue_to_address>

Sourcery assessment

Approval pending. 1 finding to address first.

Blocking findings: src/routes/prompts/[...slug]/+layout.svelte:7

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[sourcery-ai]

Sourcery assessment

Approved.

[vercel]

Deployment failed for project promplate-docs with the following error:

Resource is limited - try again in 24 hours (more than 100, code: "api-deployments-free-per-day").

Learn More: https://vercel.com/promplate?upgradeToPro=build-rate-limit