Agent skill

Matlab Add Awgn

by matlab in matlab/matlab-agentic-toolkit

Read BEFORE writing any code that adds Additive White Gaussian Noise (AWGN) to signals and converts between SNR, Eb/No, Es/No, and per-subcarrier SNR for communications simulations, using awgn()…

Custom licenceAuto-check passedTesting & QA

Install Matlab Add Awgn

skills CLI
$ npx skills add matlab/matlab-agentic-toolkit --skill matlab-add-awgn -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install matlab/matlab-agentic-toolkit matlab-add-awgn --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/matlab/matlab-agentic-toolkit.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills-catalog/wireless-communications/matlab-add-awgn .claude/skills/matlab-add-awgn && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
matlab-add-awgn
GitHub stars
1.1k
Token cost
~3.7k tokens
SKILL.md length
1,313 words
Files
4 (incl. references)
Skills in repo
151
Repo updated
First seen
Licence
Custom licence

At a glance

Read BEFORE writing any code that adds Additive White Gaussian Noise (AWGN) to signals and converts between SNR, Eb/No, Es/No, and per-subcarrier SNR for communications simulations, using awgn()…

  • Works in 6 steps: NEVER pass 'measured' to awgn — Always… → Use UnitAveragePower=true when signal… → Use convertSNR for all conversions —… → …
  • Testing & QA work in your project
  • SKILL.md covers When to Use, When NOT to Use, Must-Follow Rules and Critical Anti-Patterns — NEVER…, plus 5 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Matlab Add Awgn is an agent skill from matlab/matlab-agentic-toolkit. Read BEFORE writing any code that adds Additive White Gaussian Noise (AWGN) to signals and converts between SNR, Eb/No, Es/No, and per-subcarrier SNR for communications simulations, using awgn(), convertSNR(), berawgn(). The default MATLAB patterns for AWGN (e.g., 'measured' option, manual SNR formulas) produce subtly incorrect results. This skill specifies the correct calling conventions, required function usage, and critical anti-patterns that must be avoided.

Its SKILL.md is about 3.7k tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `manifest.yaml`, `references/5g-link-noise.md` and `references/snr-conversion-guide.md`).

It sits in Testing & QA. The repository describes itself as: The MATLAB Agentic Toolkit brings proven MATLAB capabilities to AI agents, making engineering and scientific workflows agent-ready.

When your agent uses it

  • Testing & QA work in your project

Example prompts

  • “measured”
  • “/matlab-add-awgn”

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. NEVER pass 'measured' to awgn — Always pass explicit signal power as the third argument. For unit-power signals use 0; otherwise compute…
  2. Use UnitAveragePower=true when signal power doesn't matter — This is the simplest path: signal power = 0 dBW, so awgn(x, snr, 0) is exact…
  3. Use convertSNR for all conversions — NEVER compute SNR/Eb/No/Es/No formulas manually — Even when the formula is simple, always use…
  4. Distinguish wideband SNR and per-subcarrier SNR in OFDM systems — Eb/No is a per-subcarrier quantity. To go from Eb/No to the wideband SNR…
  5. Capture noise variance for soft demodulation — Use [y, nVar] = awgn(...) and pass nVar to the demodulator via NoiseVariance=nVar.
  6. Do NOT reference skill rules or prohibitions in generated code comments — Write positive, descriptive comments that explain intent, using…

What it can do on your machine

Read from SKILL.md and the folder at commit 69e71df. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are matlab).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Matlab Add Awgn loads about 3.7k tokens when it runs, and up to ~6.5k if it reads all its reference files. Until then it costs about 121 tokens; SKILL.md has 1,313 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~121
When it runs · the whole SKILL.md, loaded when a task matches
~3.7k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~6.5k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,313 words (~3,723 tokens).

“Add white Gaussian noise to signals and convert between SNR definitions (SNR, Eb/No, Es/No, per-subcarrier SNR) for communications system simulations.”

— opening of SKILL.md by matlab, Custom licence
name
matlab-add-awgn
license
https://www.mathworks.com/content/dam/mathworks/license/pmrl/license.md
metadata.author
MathWorks
metadata.version
1.3

Read the full SKILL.md on GitHub

Files

SKILL.md and 3 other files (references) in skills-catalog/wireless-communications/matlab-add-awgn of matlab/matlab-agentic-toolkit.

  • SKILL.md
  • manifest.yaml
  • references/5g-link-noise.md
  • references/snr-conversion-guide.md

Open the folder on GitHubat commit 69e71df

Compare with similar skills

Matlab Add Awgn next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Matlab Add Awgn compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Matlab Add Awgn this skillmatlab/matlab-agentic-toolkit1.1k—~3.7kAutomated safety check: PassCustom licence
Web Application Testinganthropics/skills180k51 repos~966Automated safety check: PassApache-2.0
Diagnosing Bugsfossasia/eventyay-interpretation1.6k32 repos~2.1kAutomated safety check: PassApache-2.0
TDDpietheinstrengholt/rssmonster56430 repos~906Automated safety check: PassMIT
TDD WorkflowhellangleZ/burn-in-cceverywhere-ralph11211 repos~2.4kAutomated safety check: PassNone
TDDsanity-io/sanity6.4k20 repos~1kAutomated safety check: PassMIT

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Categories

Questions about Matlab Add Awgn

What does Matlab Add Awgn do?

Read BEFORE writing any code that adds Additive White Gaussian Noise (AWGN) to signals and converts between SNR, Eb/No, Es/No, and per-subcarrier SNR for communications simulations, using awgn()…. Matlab Add Awgn is an agent skill from matlab/matlab-agentic-toolkit. Read BEFORE writing any code that adds Additive White Gaussian Noise (AWGN) to signals and converts between SNR, Eb/No, Es/No, and per-subcarrier SNR for communications simulations, using awgn(), convertSNR(), berawgn().

When should I use Matlab Add Awgn?

Matlab Add Awgn fits situations like: testing & QA work in your project.

How do I install Matlab Add Awgn in Claude Code?

Run `npx skills add matlab/matlab-agentic-toolkit --skill matlab-add-awgn -a claude-code`. Or copy the skill folder (skills-catalog/wireless-communications/matlab-add-awgn in matlab/matlab-agentic-toolkit) into .claude/skills/matlab-add-awgn in your project. Claude Code loads it when a task matches its description.

How do I install Matlab Add Awgn in Codex?

Run `npx skills add matlab/matlab-agentic-toolkit --skill matlab-add-awgn -a codex`. Or copy the skill folder (skills-catalog/wireless-communications/matlab-add-awgn in matlab/matlab-agentic-toolkit) into .agents/skills/matlab-add-awgn in your project. Codex loads it when a task matches its description.

Can I use Matlab Add Awgn in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add matlab/matlab-agentic-toolkit --skill matlab-add-awgn -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/matlab-add-awgn, .gemini/skills/matlab-add-awgn, .github/skills/matlab-add-awgn and .opencode/skills/matlab-add-awgn in your project.

What does Matlab Add Awgn need to run?

SKILL.md names no scripts, command-line tools or credentials: Matlab Add Awgn is instructions for the agent only.

Does Matlab Add Awgn access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Matlab Add Awgn safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Matlab Add Awgn use?

Matlab Add Awgn has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Matlab Add Awgn use?

About 3.7k tokens (SKILL.md is roughly 15k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 2.7k tokens, read only when the agent opens those files.

What are the alternatives to Matlab Add Awgn?

Skills that share tags, products or a category with Matlab Add Awgn: Web Application Testing (anthropics/skills, 180k stars), Diagnosing Bugs (fossasia/eventyay-interpretation, 1.6k stars), TDD (pietheinstrengholt/rssmonster, 564 stars) and TDD Workflow (hellangleZ/burn-in-cceverywhere-ralph, 112 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Matlab Add Awgn?

matlab (a GitHub organization) maintains it in matlab/matlab-agentic-toolkit, which has 1,144 GitHub stars. The repository holds 151 skills in this directory. The repository was last updated on October 8, 2026.

Source: matlab/matlab-agentic-toolkit on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.