fix(site): add manual 301s for model-slug 404s with no template data yet - #1132
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deriveModelGroups() only clusters slugs that already appear in a template's `models` field, so newer/variant model slugs with real search traffic (wan2-2, flux-2, kling-3-0, ltx-2, seedance1-0-pro, qwen-image-2512, z-image-turbo, nano-banana-2, etc.) 404 until content tags catch up. Add a manual redirect map, merged so the auto-derived map still wins once a template does tag the slug. Families with no live page and none planned yet (sdxl, sd1-5, sd3-5, hunyuan-3d, gemini3-pro-image-preview, gpt-image-1[-5], seedream-*, none) redirect to the model index instead of a dead end. Seedream is kept off the Seedance redirect — it's a distinct model family in FAMILY_RULES/PRIORITY_MODELS, not a Seedance variant.
balpreetgrowthnatives
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August 14, 2026 11:07
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No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info⚙️ Run configurationConfiguration used: Organization UI Review profile: ASSERTIVE Plan: Pro Plus Run ID: 📒 Files selected for processing (3)
Included review availability: Your plan provides up to 4 included reviews per hour; 3 remain after this review. 📝 WalkthroughWalkthroughAstro now supports manual redirects for unsupported model variants and merges them with derived redirects. The site build also runs a trailing-slash correction script after ChangesModel variant redirects
Suggested reviewers: Merge Risk: ⚪ Minimal · up to This change adds static 301 redirects for known model-slug 404s without changing template generation or model taxonomy; no actionable merge-blocking risk remains beyond normal checks and review. 🚥 Pre-merge checks | ✅ 2✅ Passed checks (2 passed)
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Inline comments:
In `@site/astro.config.mjs`:
- Around line 137-138: Update the redirect entries for
/workflows/model/${variant} in the Astro configuration to remove the duplicate
slash-form route, retaining only one redirect form and leaving handling of the
alternate trailing-slash URL to Vercel routing.
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site/astro.config.mjs
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I found two blocking issues: the changed config fails astro check, and the deployed preview shows that trailing-slash variants still return 404. Details are inline.
…k error Verified against a real astro build's .vercel/output/config.json: both the /variant and /variant/ redirect keys were already collapsing to the exact same non-slash-anchored regex (^/workflows/model/<variant>$), so the second key added zero request coverage — only a duplicate manifest entry and the route-collision warning astro sync flags (Astro itself says this becomes a hard build error in a future version). This matches the known upstream issue withastro/astro#13134: Astro's redirects config doesn't support separately keying both slash forms. Dropping the redundant key removes the warning with no behavior change. Also fixes a real astro-check type error the previous commit introduced: `.map((variant) => [variant, 'wan'])` doesn't produce a tuple, so mixing those literals with the `null`-target entries widened `variant` to `string | null` and broke `canonicalModelSlugs.has(variant)`. Added a typed `pair()` helper so every entry is a proper `[string, string | null]` tuple. The pre-existing modelSlugRedirects map (auto-derived, not touched here) has the identical duplicate-key pattern across all 42 of its entries — worth its own follow-up, but out of scope for this PR.
…lash Review found that deployed redirects only worked for one slash form: /workflows/model/wan2-1 redirected correctly but /workflows/model/wan2-1/ 404'd, reproduced for flux-2-dev, sdxl, seedream-4-0, and none too. Root cause is shared by modelSlugRedirects (pre-existing) and this PR's manual map: Astro's redirects config can't express both slash forms for one path (withastro/astro#13134) — keying both /foo and /foo/ produces two literal routes that collapse to the exact same non-slash-anchored regex (^/foo$) in the Vercel adapter output, so the second key never added real coverage, only a duplicate manifest entry and the build-time collision warning. Add a postbuild step (scripts/fix-redirect-trailing-slash.ts, wired into `pnpm run build`) that patches the Vercel Build Output config Astro already generated: rewrites every redirect's regex to make the trailing slash optional and drops the now-redundant duplicate entries. Fixes both slash forms for every model-page redirect, not just the ones this PR adds. Verified against a fixture built from a real build's config.json shape (redirect entries, header-injection rules, rewrites, and the filesystem-handle marker) — only redirect routes are touched, the regex correctly matches both /foo and /foo/ and rejects /foobar, and duplicate entries are deduped. Also re-verified the manual redirect list itself against the actual synced template data: slugify() normalizes casing/punctuation ("Wan2.1" -> "wan2-1"), so the vast majority of the originally-added ~35 slugs already have a real template tag and already get a correct auto-derived redirect from modelSlugRedirects — they were dead, shadowed weight. Trimmed the manual list down to the 4 slugs with no matching template tag today: kling-1-6, kling-2-0, hunyuan-3d, and none (the last two have nowhere to point yet, so they land on the model index instead of a dead end).
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Summary
Adds manual 301 redirects for ~35
/workflows/model/*URLs that currently 404, sourced from a site-wide 404 crawl. Model-page redirects are normally auto-derived byderiveModelGroups()from each template'smodelsfield (site/astro.config.mjs), but these slugs don't appear in any template yet, so nothing generates a redirect for them today.Changes
manualModelSlugRedirectsmap insite/astro.config.mjs, merged into theredirectsconfig as{ ...manualModelSlugRedirects, ...modelSlugRedirects }— the auto-derived map always wins on overlap, so once a template does get tagged with one of these slugs, the manual entry becomes a no-op rather than a conflicting source of truth.wan*,flux*,kling*,ltx*,seedance*,qwen-image*variants, plusz-image-turbo → z-imageandnano-banana-2 → nano-banana-pro.sdxl,sd1-5,sd3-5,hunyuan-3d,gemini3-pro-image-preview,gpt-image-1,gpt-image-1-5,none) redirect to the model index (/workflows/model/) rather than staying dead ends.modelSlugRedirects.Review Focus
seedream-*→/workflows/model/seedance/, but this codebase's ownFAMILY_RULES/PRIORITY_MODELSinmodel-groups.tsalready treat Seedream as a distinct family from Seedance (separate regex rule, separate priority entry). Merging it into Seedance's page would contradict that taxonomy, soseedream-4-0,seedream-4-5, andseedream-5-0-literoute to the model index instead until Seedream has its own qualifying page."<slug>" is defined in both "<slug>" and "<slug>/") from keying both slash forms — confirmed viaastro syncthat this exact warning already fires 42 times onmainbefore this change; this PR doesn't introduce a new class of issue, just more entries in the pre-existing accepted pattern.deriveModelGroups(),FAMILY_RULES, or any template content — purely additive, static redirect data.