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Cidr Calc

v1.0.0

Calculate subnet information from CIDR notation. Use when the user asks to calculate a subnet, find the network address, broadcast address, host range, subne...

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byOmar Hernandez@ohernandez-dev-blossom
MIT-0
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LicenseMIT-0 · Free to use, modify, and redistribute. No attribution required.
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high confidence
✓
Purpose & Capability
Name and description match the SKILL.md instructions: the skill only describes validating CIDR input and computing subnet parameters. It does not request unrelated binaries, environment variables, or installs.
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Instruction Scope
Instructions stay within the expected scope (validation, subnet math, class and private/public determination, binary output). One minor correctness issue: the SKILL.md lists 127.x.x.x as Private — 127.0.0.0/8 is loopback/host-local, not a private RFC1918 network. Also check edge cases (0.0.0.0, 255.255.255.255, /31 and /32 semantics) if you rely on this for production use.
✓
Install Mechanism
No install spec and no code files — instruction-only skill. Nothing will be written to disk or downloaded during install.
✓
Credentials
Requires no environment variables, credentials, or config paths — the declared requirements are minimal and appropriate for a local calculation utility.
✓
Persistence & Privilege
always is false and the skill does not request persistent or elevated platform privileges. Autonomous invocation is allowed by default but not combined with any sensitive access.
Assessment
This appears safe and coherent for computing subnet details. You can install it without exposing credentials or installing extra software. Before relying on it for critical tasks, test its outputs on edge cases (e.g., 0.0.0.0, 255.255.255.255, /31, /32) and note the documented mistake treating 127.x.x.x as a private network (it is loopback). If you need authoritative behavior for unusual prefixes, verify against a trusted networking tool or library.

Like a lobster shell, security has layers — review code before you run it.

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License

MIT-0
Free to use, modify, and redistribute. No attribution required.
Termshttps://spdx.org/licenses/MIT-0.html

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