# Astronomer — Agent Score

> Score: 91/100 (Grade: A) | Docs: https://Astronomer.io/docs | Checked: May 1, 2026

Astronomer scored 91/100 (A) on Agent Score. 17 of 23 agent-readiness checks passed.

[View full report](https://buildwithfern.com/agent-score/company/astronomer-io-docs)
[All companies](https://buildwithfern.com/agent-score/llms.txt)

## Summary

- Total checks: 23
- Passed: 17
- Warnings: 1
- Failed: 4

## Category Scores

- page-size: 99/100
- observability: 71/100
- url-stability: 100/100
- authentication: 100/100
- content-structure: 100/100
- markdown-availability: 96/100
- content-discoverability: 84/100

## Check Results

### content-discoverability

- [pass] llms.txt found at 3 locations; using https://Astronomer.io/docs/llms.txt as canonical
- [pass] llms.txt follows the proposed structure (H1, blockquote, heading-delimited link sections)
- [fail] llms.txt is 101,956 characters (exceeds 100,000 threshold; will be truncated by most agents)
- [pass] All 10 same-origin sampled links resolve (598 total links)
- [pass] 10/10 same-origin sampled links point to markdown content (100%)
- [pass] llms.txt directive found in HTML of all 8 sampled pages, near the top of content; 2 failed to fetch
- [warn] llms.txt directive found in markdown of 9 of 10 sampled pages (1 missing)

### markdown-availability

- [pass] 10/10 sampled pages support .md URLs (100%)
- [pass] 9/10 sampled pages support content negotiation (90%); 1 returned error pages

### page-size

- [pass] All 10 sampled pages contain server-rendered content
- [pass] All 10 pages under 50K chars (median 4K, max 13K)
- [pass] All 10 sampled pages under 50K chars (median 659K HTML → 14K markdown (98% boilerplate))
- [fail] 1 of 10 sampled pages have content starting past 50% (worst 108%)

### content-structure

- [pass] No tabbed content detected across 10 sampled pages
- [pass] No tabbed content found; header quality check not applicable
- [pass] All 12 code fences properly closed across 13 pages

### url-stability

- [pass] All 3 sampled pages return proper error codes for bad URLs; 7 failed to fetch
- [pass] No redirects detected across 10 sampled pages

### observability

- [fail] llms.txt covers 596/1041 sitemap doc pages (57%); 445 missing; 2 llms.txt links not in sitemap (may indicate stale links or incomplete sitemap)
- [fail] 2 of 9 pages have substantive content differences between markdown and HTML (avg 8% missing); 1 failed to fetch
- [pass] All 13 endpoints have appropriate cache headers

### authentication

- [pass] All 10 sampled pages are publicly accessible
- [skip] All docs pages are publicly accessible; no alternative access paths needed