Leaderboard/Feather

Feather

docs.featherhq.com
Score: 98 out of 100, grade A98
Grade A
Last checked: April 11, 2026 · Rerun
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Simulation: Fern // bud
Day 0
CategoryDevTools
Checks passed18/22Warnings2Failed1

Feather scores 98/100 (Grade A), placing it among the most AI-agent-ready documentation sites evaluated. It passes 18 of 22 checks (82%), demonstrating strong support for AI coding agents. 3 items require attention to reach a perfect score.

# Agent Score Fix Report — Feather
URL: https://docs.featherhq.com/
Score: 98/100 (Grade A)

I need help improving the AI-readiness of the documentation at https://docs.featherhq.com/.
Agent Score found 1 failing checks and 2 warnings.

## Failing Checks (1)
- [page-size] Page Size Html: 1 of 10 sampled pages convert to over 100K chars (max 1513K, 0% boilerplate)

## Warnings (2)
- [content-discoverability] Llms Txt Valid: llms.txt contains parseable links but doesn't fully follow the proposed structure: https://docs.featherhq.com/llms.txt: No blockquote summary found
- [content-discoverability] Llms Txt Directive: llms.txt directive found in 9 of 10 sampled pages (1 missing)

## Fix Instructions

For each issue above, please:
1. Analyze the documentation site at https://docs.featherhq.com/
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://docs.featherhq.com/ --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

auth-gate-detectionAll 10 sampled pages are publicly accessible
auth-alternative-accessAll docs pages are publicly accessible; no alternative access paths needed
page-size-html1 of 10 sampled pages convert to over 100K chars (max 1513K, 0% boilerplate)
rendering-strategyAll 10 sampled pages contain server-rendered content
page-size-markdownAll 9 pages under 50K chars (median 5K, max 7K)
content-start-positionContent starts within first 10% on all 10 sampled pages (median 1%)
llms-txt-validllms.txt contains parseable links but doesn't fully follow the proposed structure: https://docs.featherhq.com/llms.txt: No blockquote summary found
llms-txt-directivellms.txt directive found in 9 of 10 sampled pages (1 missing)
llms-txt-existsllms.txt found at 1 location(s)
llms-txt-sizellms.txt is 25,463 characters (under 50,000 threshold)
llms-txt-links-resolveAll 10 same-origin sampled links resolve (169 total links)
llms-txt-links-markdown10/10 same-origin sampled links point to markdown content (100%) (1 external link excluded)
markdown-url-support9/9 sampled pages support .md URLs (100%)
content-negotiation9/9 sampled pages support content negotiation (100%)
tabbed-content-serializationNo tabbed content detected across 10 sampled pages
section-header-qualityNo tabbed content found; header quality check not applicable
markdown-code-fence-validityAll 10 code fences properly closed across 10 pages
http-status-codesAll 10 sampled pages return proper error codes for bad URLs
redirect-behaviorNo redirects detected across 10 sampled pages
llms-txt-freshnessllms.txt covers 100% of 167 sitemap doc pages; 1 llms.txt links not in sitemap (may indicate stale links or incomplete sitemap)
markdown-content-parityAll 9 pages have equivalent markdown and HTML content (avg 0% missing)
cache-header-hygieneAll 11 endpoints have appropriate cache headers

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