Deno

Deno is a JavaScript and TypeScript runtime CLI that bundles common project tooling into one binary. It covers code execution plus package, task, quality, testing, documentation, and compilation workflows for Deno projects.

• Run local or remote JavaScript and TypeScript programs, scripts, and configured tasks with explicit file, network, env, and subprocess permissions.
• Add, install, remove, and update JSR or npm dependencies, inspect module or cache state, and work from a project's deno.json or package.json.
• Format, lint, test, benchmark, measure coverage, generate docs, and compile a script into a self-contained executable.

• Subcommands are broad but clear, so agents can stay inside one CLI for inspect-change-verify loops across a Deno codebase.
• Structured output is real where inspection matters most: deno info --json, deno doc --json, deno lint --json, and unstable deno bench --json; tests and coverage also support JUnit, TAP, and lcov outputs.
• Best for agents operating on a checked-out project; run, task, install, and remote module execution can execute arbitrary code, so permission flags and trust boundaries need deliberate handling.

• Many automation flows depend on local config, cache state, and explicit --allow-* or --no-prompt flags.
• Core execution and package-management output is still mostly text-first, so structured parsing is strongest on inspection and reporting commands rather than every workflow.