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Install in OpenClaw
/install url-shorten
Description
Shorten URLs via tinyurl or bitly API
Usage Guidance
This skill appears to do what it claims (shorten URLs) and has no install actions, but note two issues: (1) SKILL.md expects an environment variable named BITLY_TOKEN though the registry metadata does not declare it — the skill will read that env var if present, so only set it if you trust the skill and understand the token's permissions; (2) shortened URLs (and the original URLs you provide) will be transmitted to external services (tinyurl or bitly), so avoid shortening URLs that contain sensitive tokens, private paths, or personal data. If you need assurance, ask the author to update the registry to declare BITLY_TOKEN as an optional credential and to document which endpoints are used, or test with non-sensitive example URLs first.
Capability Analysis
Type: OpenClaw Skill
Name: url-shorten
Version: 1.0.0
The skill bundle, consisting of `_meta.json` and `SKILL.md`, describes a URL shortening tool. The `SKILL.md` file, treated as a prompt injection surface, contains no instructions for malicious behavior, data exfiltration, or unauthorized actions. It declares `curl` as a required binary, which is appropriate for its stated purpose of making API calls. The use of the `BITLY_TOKEN` environment variable is for functional purposes (API authentication) and not for exfiltration. No other high-risk behaviors or obfuscation attempts are present in the provided files.
Capability Assessment
Purpose & Capability
Name/description (shorten via tinyurl/bitly) aligns with the declared requirement for curl and the SKILL.md instructions. No unrelated binaries, installs, or capabilities are requested.
Instruction Scope
SKILL.md explicitly instructs the agent to use BITLY_TOKEN if set, falling back to tinyurl otherwise. The instructions do not direct the agent to read other system files, but they do rely on an environment variable that is not declared in the skill metadata, which is an inconsistency and a potential surprise at runtime.
Install Mechanism
Instruction-only skill with no install steps and no code written to disk. Lowest-risk install posture.
Credentials
Requesting or using a BITLY_TOKEN would be proportional to the stated purpose, but the registry metadata lists no required env vars while SKILL.md references BITLY_TOKEN. The missing declaration reduces transparency about secret usage. Also, providing a token means the skill (when invoked) will send data to an external service, which has privacy implications.
Persistence & Privilege
Skill does not request always:true, does not modify agent/system config, and is user-invocable only. No elevated persistence or privileges are requested.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install url-shorten - After installation, invoke the skill by name or use
/url-shorten - Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.0
Initial publish
Metadata
Frequently Asked Questions
What is Url Shorten?
Shorten URLs via tinyurl or bitly API. It is an AI Agent Skill for Claude Code / OpenClaw, with 1530 downloads so far.
How do I install Url Shorten?
Run "/install url-shorten" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is Url Shorten free?
Yes, Url Shorten is completely free (open-source). You can download, install and use it at no cost.
Which platforms does Url Shorten support?
Url Shorten is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created Url Shorten?
It is built and maintained by Xejrax (@xejrax); the current version is v1.0.0.
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