run

name	run
description	Launch this project's app to see a change in action.

run

Drive the project's own dev/test/build scripts. Detect toolchain from manifest.

When to invoke

• User says "run", "start dev server", "build", "run the tests".
• After making a code change, when the next step is to verify by execution.

Toolchain detection

Manifest	Typical commands
package.json	pnpm dev / pnpm test / pnpm build (or npm/yarn)
pyproject.toml	pytest, uv run pytest, python -m <pkg>
Cargo.toml	cargo test, cargo run, cargo build --release
go.mod	go test ./..., go run ./cmd/<name>
Gemfile	bundle exec rspec, bundle exec rails s
Makefile	Prefer make test / make dev — usually canonical

Read packageManager in package.json (or .tool-versions) for the pinned package manager — don't guess.

Output to report

• Exit code
• The exact command run (so the user can re-execute)
• Summary parsed from the runner: 42 passed, 3 failed, 1 skipped.
• File path of the first failure so the user can jump to it.