PrefectHQ/fastmcp v4.1.1

v4.1.1: Regex Marks the Spot

on GitHub

Regex tool search now rejects patterns over 1,000 characters and stops after about a second, and SkillsDirectoryProvider discovers skill folders that are links again, including links to folders outside the skills root; a skill's own files must still resolve inside the folder it links to. All 4.x users are encouraged to upgrade. Thanks to our 4 contributors, including 1 first-time contributor.

What's Changed

Security 🔒

• Keep linked skill folders discoverable by @zzstoatzz in #5766
• Bound regex tool search by pattern length and time by @zzstoatzz and @SAYUTIM in #5771

Fixes 🐞

• Keep an unparseable proxy setting from aborting the update check by @zzstoatzz and @ker2xu in #5639
• Keep the JWKS refresh lock clear of subclass attributes by @zzstoatzz in #5770

Examples & Contrib 💡

• fix: convert version query param to VersionSpec in component manager routes by @BlueX888 in #5575

New Contributors

• @ker2xu made their first contribution in #5639

Full Changelog: v4.1.0...v4.1.1