Leaderboard/Amazon ECS

Amazon ECS

docs.aws.amazon.com/ecs
Score: 69 out of 100, grade D69
Grade D
Last checked: April 11, 2026 · Rerun
Share on
Simulation: Fern // bud
Day 0
CategoryDevTools
Checks passed12/22Warnings2Failed4

Amazon ECS scores 69/100 (Grade D), passing 12 of 22 checks (55%). There are 6 issues limiting AI agent readiness. Addressing llms.txt support and markdown availability would provide the most improvement.

# Agent Score Fix Report — Amazon ECS
URL: https://docs.aws.amazon.com/ecs/
Score: 69/100 (Grade D)

I need help improving the AI-readiness of the documentation at https://docs.aws.amazon.com/ecs/.
Agent Score found 4 failing checks and 2 warnings.

## Failing Checks (4)
- [content-discoverability] Llms Txt Size: llms.txt is 288,774 characters (exceeds 100,000 threshold; will be truncated by most agents)
- [content-discoverability] Llms Txt Directive: No llms.txt directive found in any of 10 sampled pages
- [markdown-availability] Markdown Url Support: No sampled pages support .md URLs (0/10 tested)
- [markdown-availability] Content Negotiation: Server ignores Accept: text/markdown header (0/10 sampled pages return markdown)

## Warnings (2)
- [content-discoverability] Llms Txt Links Markdown: Same-origin links point to HTML, but 1 have .md variants available
- [page-size] Content Start Position: 8 of 10 sampled pages have content starting at 10–50% (worst 47%)

## Fix Instructions

For each issue above, please:
1. Analyze the documentation site at https://docs.aws.amazon.com/ecs/
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.aws.amazon.com/ecs/ --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 sampled pages support .md URLs (0/10 tested)
content-negotiationServer ignores Accept: text/markdown header (0/10 sampled pages return markdown)
cache-header-hygieneAll 11 endpoints have appropriate cache headers
llms-txt-freshnessSitemap has 50000 URLs but none are under the docs path prefix (/ecs)
markdown-content-parityNo pages with markdown versions available to compare
auth-gate-detectionAll 10 sampled pages are publicly accessible
auth-alternative-accessAll docs pages are publicly accessible; no alternative access paths needed
llms-txt-sizellms.txt is 288,774 characters (exceeds 100,000 threshold; will be truncated by most agents)
llms-txt-directiveNo llms.txt directive found in any of 10 sampled pages
llms-txt-links-markdownSame-origin links point to HTML, but 1 have .md variants available
llms-txt-existsllms.txt found at 1 location(s)
llms-txt-validllms.txt follows the proposed structure (H1, blockquote, heading-delimited link sections)
llms-txt-links-resolveAll 10 same-origin sampled links resolve (1813 total links)
content-start-position8 of 10 sampled pages have content starting at 10–50% (worst 47%)
rendering-strategyAll 10 sampled pages contain server-rendered content
page-size-htmlAll 10 sampled pages convert under 50K chars (median 5K, 69% boilerplate)
page-size-markdownSite does not serve markdown; skipping markdown size check
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 0 code fences properly closed across 1 pages
http-status-codesAll 10 sampled pages return proper error codes for bad URLs
redirect-behaviorNo redirects detected across 10 sampled pages

Built by Fern

Fern-powered docs are agent-ready by default.

Trusted by