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Rohith Krishna.S
Rohith Krishna.S

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ExplainThisCLI: Risk-Aware Static Analysis of Shell Commands with GitHub Copilot CLI

GitHub Copilot CLI Challenge Submission

This is a submission for the GitHub Copilot CLI Challenge

What I Built

I built ExplainThisCLI, a risk-aware static CLI command analyzer that explains shell commands in plain English and evaluates their potential danger before execution.

Unlike basic command explainers, ExplainThisCLI understands:

  • pipelines (|)
  • redirection (>, >>)
  • combined flags (e.g. -rf)
  • destructive intent across an entire command chain

The tool performs pure static analysis — it never executes commands — and assigns a LOW / MEDIUM / HIGH danger level based on pipeline-level risk aggregation.

ExplainThisCLI is designed to help users understand:

  • what a command does
  • how data flows between commands
  • how risky it is
  • why it may be dangerous

Demo

🔗 GitHub Repository: https://github.com/rk-005/explain-this-cli

Run the tool locally:

python -m explain.cli "rm -rf / | tee log.txt"
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ExplainThisCLI outputs:

  • a step-by-step explanation of each command stage
  • detected destructive operations
  • an aggregated risk level for the entire pipeline



My Experience with GitHub Copilot CLI

GitHub Copilot CLI was used as a reasoning assistant to help interpret shell command intent and explain potential side effects in natural language.

During development, I used Copilot CLI to:

  • reason about complex shell pipelines
  • validate interpretations of destructive commands (e.g. rm -rf)
  • refine explanations so they are understandable before execution

Example Copilot CLI usage:

gh copilot -p "Explain the risks of running: rm -rf / | tee log.txt"
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Team

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