Shorten

Shorten URLs using is.gd (no auth required). Returns a permanent short link.

Security Scan

The skill does what it claims—a small shell script that posts a URL to is.gd and returns the short link—aside from a minor metadata omission (it relies on curl but does not declare it).

Purpose & Capability

The name/description match the implementation: shorten.sh performs an HTTP POST to https://is.gd/create.php and returns the result. One small inconsistency: the package/registry metadata lists no required binaries, but the script uses curl — curl is necessary for the skill to work and should be declared.

Instruction Scope

SKILL.md instructs running the provided shorten.sh with a URL. The script only sends the provided URL to is.gd and prints the response; it does not read other files, environment variables, or system configuration.

Install Mechanism

There is no install spec (instruction-only with an included script). Nothing is downloaded or extracted during installation; runtime outbound HTTP to is.gd is expected behavior.

Credentials

The skill requests no credentials or config. It performs a single network call to is.gd, which is proportional to the described purpose. Note that no environment variables are needed or used.

Persistence & Privilege

The skill does not request persistent presence (always:false) and does not modify other skills or system settings. It is user-invocable and may be invoked autonomously by the agent per platform defaults.

Assessment

This skill is small and coherent: it runs a local shell script that POSTs your provided URL to is.gd and returns the short link. Before installing, consider: 1) curl must be available on the host (the metadata does not declare this dependency). 2) The original URL is transmitted to is.gd — do not shorten sensitive or confidential links unless you accept that the target URL is shared with the external service. 3) Because it performs network calls, check your environment's network/policy constraints if you operate in a high-security environment. If these points are acceptable, the skill appears safe for its stated purpose.

Quickly shorten URLs using the is.gd service. No API key or account required.

Usage

/home/art/clawd/skills/shorten/shorten.sh "https://example.com/very/long/url"

Examples

Standard usage:

shorten "https://google.com"
# Output: https://is.gd/O5d2Xq

With custom alias (if supported by script extension later): Currently basic shortening only.

Notes

• Links are permanent.
• No analytics dashboard (simple redirect).
• Rate limits apply (be reasonable).