Hey all. I was wondering…

Hey all. I was wondering if you knew why Claude Code might be getting 403s on core.tracTrac Trac is the place where contributors create issues for bugs or feature requests much like GitHub.https://core.trac.wordpress.org/. and core.svn?

⏺ Fetch(https://core.trac.wordpress.org/ticket/54488)
  ⎿  Error: Request failed with status code 403

⏺ Fetch(https://core.svn.wordpress.org/trunk/wp-load.php)
  ⎿  Error: Request failed with status code 403

⏺ Fetch(https://core.trac.wordpress.org/browser/trunk/CONTRIBUTING.md)
  ⎿  Error: Request failed with status code 403

Doesn’t sound super useful to blockBlock Block is the abstract term used to describe units of markup that, composed together, form the content or layout of a webpage using the WordPress editor. The idea combines concepts of what in the past may have achieved with shortcodes, custom HTML, and embed discovery into a single consistent API and user experience., since the same code can be accessed on GH:

 ⏺ Fetch(https://github.com/WordPress/wordpress-develop/blob/trunk/CONTRIBUTING.md)                                      
  ⎿  Received 189.1KB (200 OK)

On the other hand, there is no equiv of https://core.trac.wordpress.org/ticket/54488 on GH, so we’re at a loss here.

❯ webfetch https://core.trac.wordpress.org/ticket/54488 ⏺ Fetch(https://core.trac.wordpress.org/ticket/54488) ⎿ Received 223.5KB (200 Ok) ⏺ Here is a summary of WordPress Trac Ticket <a href="https://core.trac.wordpress.org/ticket/54488">#54488</a>: Title: wp_filter_nohtml_kses does not remove HTML comments

Dion Hulse 12:08 am on January 30, 2026

@stephdau What’s the User-agent of claude code?

A range of user-agents are blocked on SVNSVN Apache Subversion (often abbreviated SVN, after its command name svn) is a software versioning and revision control system. Software developers use Subversion to maintain current and historical versions of files such as source code, web pages, and documentation. Its goal is to be a mostly compatible successor to the widely used Concurrent Versions System (CVS). WordPress core and the wordpress.org released code are all centrally managed through SVN. https://subversion.apache.org/. & TracTrac Trac is the place where contributors create issues for bugs or feature requests much like GitHub.https://core.trac.wordpress.org/. due to abuse, it’s likely that it’s caught up in that.

It looks like it’s probably using axios/<version> or another generic library headerHeader The header of your site is typically the first thing people will experience. The masthead or header art located across the top of your page is part of the look and feel of your website. It can influence a visitor’s opinion about your content and you/ your organization’s brand. It may also look different on different screen sizes., which is super poor behaviour…
- Stephane Daury (stephdau) 9:45 am on January 30, 2026
  
  Hey @dd32!
  
  Hmmm, it does indeed look like my test of its WebFetch tool came to nginxNGINX NGINX is open source software for web serving, reverse proxying, caching, load balancing, media streaming, and more. It started out as a web server designed for maximum performance and stability. In addition to its HTTP server capabilities, NGINX can also function as a proxy server for email (IMAP, POP3, and SMTP) and a reverse proxy and load balancer for HTTP, TCP, and UDP servers. https://www.nginx.com/. as axios/1.8.4, which also surprised me as it’s been documented to supposedly be Claude-User for that specific tool (as opposed to their training crawler, etc).
  
  I did find a related issue in their GH repo, but seems it’s been/being ignored, unfortunately.
  
  I agree on the poor behaviour, and that unblocking axios-related calls at large might not be the best idea. Or at least not as easy a decision as it would have been had they been using a distinctive u-a.
  - Stephane Daury (stephdau) 9:51 am on January 30, 2026
    
    I’ve left a related note on their issue. Would be surprised if it led to anything, but one never knows. 🙂
  - Stephane Daury (stephdau) 10:01 am on January 30, 2026
    
    And for the record, the issue can easily be solved by simply asking Claude Code to use curl to fetch the content, so it’s not really a show stopper for its users. I feel it’s reasonable to close this request, and we can revisit if Anthropic fixes their u-a appropriately.
- Stephane Daury (stephdau) 4:28 pm on March 25, 2026
  
  Well, well, well… 😁
  
  It seems Anthropic has decided to silently address the user-agent issue.
  
  Confirmed in my test:
  “Claude-User (claude-code/2.1.83; +https://support.anthropic.com/)”
  - Stephane Daury (stephdau) 4:35 pm on March 25, 2026
    All set, nothing to be done on our end.
    
    ❯ webfetch https://core.trac.wordpress.org/ticket/54488 ⏺ Fetch(https://core.trac.wordpress.org/ticket/54488) ⎿ Received 223.5KB (200 Ok) ⏺ Here is a summary of WordPress Trac Ticket <a href="https://core.trac.wordpress.org/ticket/54488">#54488</a>: Title: wp_filter_nohtml_kses does not remove HTML comments

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