feat: Add forbidden usernames for AI agent and LLM-related files#621
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feat: Add forbidden usernames for AI agent and LLM-related files#621
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Prevent these special filenames from being registered as usernames, since they are served at apify.com/<username> and would conflict with AI agent discovery files.
The existing hidden-files pattern already blocks .well-known; add an explicit assertion so the behavior is locked in.
jancurn
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B4nan
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Apr 23, 2026
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## Summary This PR adds `CLAUDE.md` to the list of forbidden usernames to prevent users from registering usernames that would conflict with Claude Code configuration files on web URLs. Similar to #621 which added `AGENTS.md` and `llms-full.txt`. ## Key Changes - Added `CLAUDE.md` to forbidden usernames (case-insensitive, for Claude Code configuration files) - Added corresponding test cases to verify `CLAUDE.md` and `claude.MD` are properly rejected ## Slack Thread https://apify.slack.com/archives/C0ANGNWT85T/p1777020731104349?thread_ts=1776943682.809139&cid=C0ANGNWT85T https://claude.ai/code/session_01GPyCtsQ8YkKtuhAeCDLaXB --- _Generated by [Claude Code](https://claude.ai/code/session_01GPyCtsQ8YkKtuhAeCDLaXB)_ Co-authored-by: Claude <noreply@anthropic.com>
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Summary
This PR expands the list of forbidden usernames to include additional special files related to AI agents and LLM configurations, as well as the
.well-knowndirectory which is commonly used for web standards and security configurations.Key Changes
llms-full.txtto forbidden usernames (LLM configuration file)AGENTS.mdto forbidden usernames (case-insensitive, for AI agent documentation).well-knownto forbidden usernames (standard directory for web configurations like ACME challenges, security policies, etc.)Implementation Details
The changes follow the existing pattern in the
FORBIDDEN_USERNAMES_REGEXPSarray, using regex patterns to match filenames case-insensitively where appropriate. The.well-knownentry uses the existing hidden file pattern(\..*)which already matches all dot-prefixed files and directories.https://claude.ai/code/session_01V6hCX7q11X1kWN7CRjjXzQ