Best fit
Check a proposed handle against the package’s platform-rule checks.
// brand presence
Handle Rules Linter
Check a desired handle against every platform's username rules and find the form that works everywhere. X caps at 15, YouTube and TikTok reject periods, and you usually find out one platform at a time.
Format: Agent skill, not a browser app. You need an AI agent that can load its instructions and use the required tools.
Package requirements: Agents that read the open SKILL.md format. Verify runtime and service requirements at the purchase or install destination.
You get: Username-format findings on length and characters, plus a suggested consistent form. This does not establish name availability or reserve accounts.
Licence and purchase details
Review the package licence at the destination.
Review the offer and access method at your chosen marketplace. Agensi provides connected-agent access, not a download. Buying a skill does not include an AI-agent subscription or setup service.
What it flags
- Length-limit violations per platform.
- Disallowed characters per platform.
- Disallowed starting characters.
- Whether the handle is consistent-safe (4 to 15 lowercase alphanumeric).
- Covers X, Instagram, TikTok, YouTube, Twitch, GitHub, and Bluesky.
How to run
Pass a handle or a list. Read-only. Platform rules are editable.
Good to know
It checks format and cross-platform consistency only. It does not check whether a handle is available; that needs a live lookup.
// choose with context
Is Handle Rules Linter the right skill?
It returns
Username-format findings on length and characters, plus a suggested consistent form. This does not establish name availability or reserve accounts.
Do not use it as
Do not treat a successful run as proof beyond the supplied files, declared scope, and evidence the skill actually checked.
Compatibility, access, version, and licence
- Reads or accesses
- Only the files or context you deliberately provide; review the listing before granting additional access.
- Compatibility
- Agents that read the open SKILL.md format. Verify runtime and service requirements at the purchase or install destination.
- Version
- Verify the current package version at the linked destination.
- Licence
- Review the package licence and seller terms at the linked destination.
Questions
Does it tell me if a handle is taken?
No, that needs a live check. This checks the rules and consistency.
Which platforms does it cover?
X, Instagram, TikTok, YouTube, Twitch, GitHub, and Bluesky, with editable rules.
Pick a handle that works everywhere.
Current price and purchase option are shown on Agensi. Use a supported agent connection on Agensi. Review the requirements above before getting started.
Get the Handle Rules Linter on Agensi