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CodexTheme Tools Theme Builder

codextheme.tools

Free browser-local theme builder and exporter for the Codex Desktop app

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Good for Bots report

CodexTheme Tools Theme Builder scores 47 of 100: 39 of the 50 base points, 8 of the 50 agent-layer points, no penalties.

Earned

39 of the 50 base points above the line, 8 of the 50 agent-layer points below it.

47

3 prompts away

Copy them below ↓

34

Still open

Behind the checks below, with prompts in Pro.

19
Penalties0
How scoring works · current methodology →

Through a bot’s eyes

“CodexTheme Tools Theme Builder is a free browser-local application for creating, previewing, and exporting custom themes for the Codex Desktop app from images or presets without requiring account registration.”

Simulated from the response GoodForBotsBot received on , not a live answer from any AI assistant.

What it can read, and what stays hidden →

What a bot can read

A language model reading this input learns that CodexTheme Tools is a free, browser-local utility for generating Codex Desktop themes. The homepage text details features like local image drops, preset suggestions, Grok theme proposals requiring credits, readability checks across multiple surfaces, and export options including Theme v1 strings and manual appearance colors. The provided JSON-LD blocks add structured software application data, a website definition, organization details, and an FAQ section explaining terms, local operation, and platform differences. Pricing information is absent except for the explicit statement that the builder is free, though credit costs for Grok proposals are mentioned. Contact details and legal terms are not provided in the text.

What stays hidden

The text does not specify support channels, contact information, licensing terms, or the exact pricing structure for purchasing additional Grok proposal credits.

What is CodexTheme Tools Theme Builder?

CodexTheme Tools Theme Builder is a free browser-local web tool for creating, previewing, and exporting custom themes for the Codex Desktop application. It is designed for users who want to build a visual appearance from images or presets without uploading data or creating an account.

Read more →

The platform offers palette extraction, image adjustments, multiple workspace view previews, readability verification, and data-only export options such as Theme v1 import strings, recipes, and tokens.

3 prompts, 33 points

For Claude Code, Cursor or Codex. The score moves after the next scan.

+12.5score from 47 to 59

Serve Markdown at its own URL

No /llms-full.txt and no markdown versions linked from llms.txt.

Read prompt

+11.3score from 59 to 70

Publish a well-formed llms.txt

No /llms.txt on this site.

Read prompt

+10score from 70 to 80

Serve Markdown when asked for it

None of the 4 pages read pass. Asking the homepage for markdown still returns text/html.

Read prompt

Pro

15 more prompts in Pro

Pro shows a prompt for every fix and drafts your llms.txt and robots.txt. It never changes the score.

$9 once, per listingSee Pro

Deployed your fixes? Rescan to update your score →

Ready-made files

Pro drafts these for this site.

Pro

A ready-made llms.txt and robots.txt

Pro drafts both files for CodexTheme Tools Theme Builder from its scan, keeps only links and rules our parsers can verify, and hands them over ready to review and publish. It never changes the score.

See Pro

Select a check to see what we found and how it is graded.

Readable base

39.2 / 50

Passes.

3.3 of 3.3 points.

robots.txt is valid, with 8 user-agent groups.

Passes.

8.3 of 8.3 points.

Sitemap declared in robots.txt, listing at least 200 URLs.

Fails.

0 of 8.3 points.

2 of 4 pages read pass. The page at /guides publishes no structured data at all: no JSON-LD, no microdata, no RDFa.

Prompt in Pro →
Passes.

10 of 10 points.

All 4 pages read pass. The homepage marks its content root, its heading outline and its landmarks.

Passes.

8.3 of 8.3 points.

50 of 50 assessed homepage navigation links expose usable destinations.

Passes.

4.2 of 4.2 points.

187 of 187 assessed homepage links and buttons have a nonempty accessible name.

Half passes.

1.3 of 2.5 points.

69 of 70 assessed homepage form fields meet the static naming and field-semantics checks.

Prompt in Pro →
Half passes.

1.3 of 2.5 points.

294 of 295 assessed homepage controls and role declarations meet the static role, state and relationship checks.

Prompt in Pro →
Passes.

1.7 of 1.7 points.

All 4 pages read pass. The homepage declares itself as its canonical URL.

Agent layer

7.5 / 50

Fails.

0 of 11.3 points.

No /llms.txt on this site.

Fails.

0 of 7.5 points.

No usable /llms.txt to judge.

Prompt in Pro →
Fails.

0 of 12.5 points.

No /llms-full.txt and no markdown versions linked from llms.txt.

Fails.

0 of 10 points.

None of the 4 pages read pass. Asking the homepage for markdown still returns text/html.

Passes.

5 of 5 points.

States a position on 6 AI crawlers, covering 6 crawlers.

Passes.

2.5 of 2.5 points.

Declares AI usage preferences via Content-Signal (robots.txt): ai-train, search.

Penalties

− 0

Passes.

Penalty: 0 of 15 points.

Our crawler reaches the page without being challenged.

Passes.

Penalty: 0 of 20 points.

Nothing on the homepage tells a crawler to skip it or to withhold its snippet.

Passes.

Penalty: 0 of 25 points.

The captured homepage HTML contains 2206 content words; completeness is not assessed.

Passes.

Penalty: 0 of 25 points.

robots.txt allows every known search and user-fetch crawler to reach the homepage.

Passes.

Penalty: 0 of 10 points.

The homepage is served over HTTPS and returns HTTP 200.

Passes.

Penalty: 0 of 3 points.

The homepage provides both a non-empty title and meta description.

Passes.

Penalty: 0 of 3 points.

The homepage is reached in 0 redirects.

Passes.

Penalty: 0 of 3 points.

The homepage reached a plain crawler in 426 ms.

Agent capabilities

0 of 10 · no points

Each one found adds +1 to the badge.

Not applicable.

Adds +1 to the badge when found.

No API catalog published.

Not applicable.

Adds +1 to the badge when found.

No /auth.md published.

Not applicable.

Adds +1 to the badge when found.

No AI Catalog published, so no MCP server card can be discovered.

Not applicable.

Adds +1 to the badge when found.

No A2A Agent Card at /.well-known/agent-card.json, and none listed in an AI Catalog.

Not applicable.

Adds +1 to the badge when found.

No usable Agent Skills index was found at either well-known path or in the AI Catalog.

Not applicable.

Adds +1 to the badge when found.

No WebMCP declarations were found in the collected HTML or inline scripts. External scripts were not inspected.

Not applicable.

Adds +1 to the badge when found.

No Web Bot Auth key directory at /.well-known/http-message-signatures-directory.

Not applicable.

Adds +1 to the badge when found.

No HTTP 402 payment challenge on the homepage or robots.txt, and no manifest at /.well-known/x402.

Not applicable.

Adds +1 to the badge when found.

No ACP discovery declaration established at /.well-known/acp.json.

Not applicable.

Adds +1 to the badge when found.

No UCP discovery declaration established at /.well-known/ucp.

Access & usage policy

Who can read this page, and for what purpose?

GoodForBotsBot received HTTP 200 via a direct request. No indexing restriction was observed in the supported homepage directives.

Sampled URL: https://codextheme.tools/

Declared crawling rules

robots.txt refuses this URL for some listed identities. See the affected crawlers below.

Sources and scope: declared crawling rules

Observed access

GoodForBotsBot received HTTP 200 via a direct request.

Sources and scope: observed access
Coverage and interpretation
  • Crawler coverage includes the registered identities and up to 50 user-agent entries from robots.txt. Source excerpts and detail groups are bounded; omissions are labelled.
  • Observed access describes GoodForBotsBot only. Other crawler entries describe declared rules, not tests of those operators' access.
  • Coverage is the sampled homepage response and collected robots.txt files. No indexing or citation is guaranteed. Usage preferences are declarations, not a legal determination of permission.
  • This explanation adds no points or penalties. Any score effects belong to the linked checks.
  • AIPREF and Content Signals keep their own definitions. AIPREF search can include processing used exclusively for search; training preferences are not a blanket ruling on every search process.

In its category

16th of 24 in Developer Tools & APIs

Whole category →
  1. 1Good for Botsgoodforbots.com
  2. 2Chrome Goldminechromegoldmine.com
  3. 16CodexTheme Tools Theme Builder · this reportcodextheme.tools

The prompts above would take CodexTheme Tools Theme Builder to 80, 5th in its category.

To the prompts ↑

Category average 56. The percentile appears once the catalogue holds a few hundred sites.

Scanned

Site profile

Login
Detected
A sign-in or sign-up link
API
Not established
Commerce
Not established

It decides which conditional checks apply. “Not established” means no proof in what we read, not proof of absence.

Scan details

Every scan is kept. Pro draws the history as a chart →

Scanned
3 Oct 2026
Rubric
0.9.0
Requests
22
Fetched
1.4 MB
Took
15.5 s
Homepage
426 ms · direct
Pages read
4
robots.txt
allowed
Which pages the scan read

The homepage and up to three pages from the sitemap and homepage links. Structured data, page structure, Markdown negotiation and typed links check each page read and take the median page; other checks read the homepage.

  • Homepagealways read
  • /guidescollection · linked from the homepage · from the sitemap · read
  • /pricingpricing · linked from the homepage · read
  • /aboutabout · from the sitemap · read

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