Vast

vast.ai/docs
Score: 88 out of 100, grade B88
Grade B
Last checked: May 12, 2026 · Rerun
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Simulation: Fern // bud
Day 0
CategoryCloud Infra
Checks passed15/23Warnings2Failed2

Vast scores 88/100 (Grade B), passing 15 of 23 checks (65%). The documentation is broadly accessible to AI agents but has 4 areas that could be improved to better serve automated tooling.

# Agent Score Fix Report — Vast
URL: https://vast.ai/docs
Score: 88/100 (Grade B)

I need help improving the AI-readiness of the documentation at https://vast.ai/docs.
Agent Score found 2 failing checks and 2 warnings.

## Failing Checks (2)
- [markdown-availability] Markdown Url Support: No pages support .md URLs (0/1 tested)
- [page-size] Content Start Position: 1 of 1 pages have content starting past 50% (worst 55%)

## Warnings (2)
- [content-discoverability] Llms Txt Directive Html: llms.txt directive found in HTML of 1 of 1 pages, but buried deep in the page (past 50%)
- [url-stability] Redirect Behavior: 1 of 1 pages use cross-host redirects

## Fix Instructions

For each issue above, please:
1. Analyze the documentation site at https://vast.ai/docs
2. Implement the specific fix
3. Verify the fix would cause the check to pass

### Common fixes:
- **No llms.txt**: Create /llms.txt following https://llmstxt.org — list all doc pages in markdown format
- **No .md URL support**: Configure your docs platform to serve pages at equivalent .md URLs (e.g. /docs/quickstart.md)
- **No content negotiation**: Return markdown when request includes Accept: text/markdown header
- **Large page size**: Reduce nav boilerplate, inline scripts, and repetitive markup
- **No sitemap**: Generate /sitemap.xml listing all documentation URLs
- **Auth walls**: Ensure docs pages return 200 without requiring login cookies or tokens
- **No Last-Modified header**: Configure your server/CDN to include Last-Modified response headers
- **Tab content hidden**: Ensure tabbed content is rendered in the HTML (not JS-only) so agents can read all variants

## Run afdocs Locally for More Detail

To get deeper visibility into what's failing, run afdocs against your docs:

  npx afdocs check https://vast.ai/docs --fixes --verbose

- **--fixes**: Adds "Fix:" lines to the output for each warn/fail check with actionable remediation steps
- **-v, --verbose**: Shows per-page details (specific URLs, character counts, error codes) for checks with issues — useful for per-URL visibility into what's failing
CHECK RESULTS

How your docs scored

markdown-url-supportNo pages support .md URLs (0/1 tested)Learn more
content-negotiation1/1 pages support content negotiation (100%)Learn more
auth-gate-detectionAll 1 pages are publicly accessibleLearn more
auth-alternative-accessAll docs pages are publicly accessible; no alternative access paths neededLearn more
llms-txt-directive-htmlllms.txt directive found in HTML of 1 of 1 pages, but buried deep in the page (past 50%)Learn more
llms-txt-existsllms.txt found at https://vast.ai/llms.txtLearn more
llms-txt-validllms.txt follows the proposed structure (H1, blockquote, heading-delimited link sections)Learn more
llms-txt-sizellms.txt is 5,389 characters (under 50,000 threshold)Learn more
llms-txt-directive-mdllms.txt directive found in markdown of all 1 pages, near the top of contentLearn more
llms-txt-links-resolvellms.txt contains 55 links, but none are under /docsLearn more
llms-txt-links-markdownllms.txt contains 55 links, but none are under /docsLearn more
markdown-content-parityAll 1 pages have equivalent markdown and HTML content (avg 0% missing)Learn more
cache-header-hygieneAll 2 endpoints have appropriate cache headersLearn more
llms-txt-coverageSitemap has 401 URLs but none are under the docs path prefix (/docs)Learn more
content-start-position1 of 1 pages have content starting past 50% (worst 55%)Learn more
rendering-strategyAll 1 pages contain server-rendered contentLearn more
page-size-markdownAll 1 pages under 50K chars (median 4K, max 4K)Learn more
page-size-htmlAll 1 pages under 50K chars (median 475K HTML → 8K markdown (98% boilerplate))Learn more
redirect-behavior1 of 1 pages use cross-host redirectsLearn more
http-status-codesAll 1 pages return proper error codes for bad URLsLearn more
tabbed-content-serializationNo tabbed content detected across 1 pagesLearn more
section-header-qualityNo tabbed content found; header quality check not applicableLearn more
markdown-code-fence-validityAll 1 code fences properly closed across 2 pagesLearn more

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