Cron Expression

Parse, validate, and explain cron expressions with next-run predictions. Use when building cron schedules.

Security Scan

The skill is internally consistent with its stated purpose (parsing/validating/explaining cron expressions); it is an instruction-only skill that runs a bundled shell script, creates a local data directory, and does not request credentials or make network calls.

Purpose & Capability

Name/description match the included script and commands. The provided commands (explain, validate, next, create, examples, test) are implemented in scripts/script.sh and align with parsing/validation/explanation of cron expressions.

Instruction Scope

SKILL.md invokes only the included local script. The script creates and uses a data directory at ~/.local/share/cron-expression (declared in SKILL.md). The script does not read unrelated system files, environment variables, or send data externally. Some command implementations are simplistic/buggy (e.g., next prints a literal string instead of expanded variables and validate is a basic regex) — this is functionality limitation, not malicious scope creep.

Install Mechanism

No install spec and no downloads; the skill is instruction-only plus a bundled shell script. No external packages or network installs are performed.

Credentials

The skill requires no environment variables, no credentials, and no config paths beyond creating its own data directory in the user's home. Requested resources are proportionate to the stated purpose.

Persistence & Privilege

always is false; the skill only creates and uses its own data directory and does not modify other skills or system-wide settings. It does not request elevated privileges.

Assessment

This skill appears safe and does what it claims: it runs a small bundled shell script to explain/validate cron expressions and stores data under ~/.local/share/cron-expression. Before installing, you may want to: (1) inspect scripts/script.sh yourself (it's short and readable), (2) be aware some commands are simplistic/buggy (test outputs before relying on them in production), and (3) run it in a limited environment or with non-privileged user permissions if you prefer. There are no network calls or credential requests in the provided files.

Parse, validate, and explain cron expressions with next-run predictions. Use when building cron schedules.

Commands

explain

scripts/script.sh explain <expr>

validate

scripts/script.sh validate <expr>

examples

scripts/script.sh examples

next

scripts/script.sh next <expr count>

create

scripts/script.sh create <desc>

test

scripts/script.sh test <expr>

Data Storage

Data stored in ~/.local/share/cron-expression/.

---

Powered by BytesAgain | bytesagain.com | [e-mail]