---
# claudbg-37cj
title: Add --[no-]color global flag and NO_COLOR env var support
status: completed
type: task
priority: normal
created_at: 2026-03-31T00:32:57Z
updated_at: 2026-04-01T05:44:59Z
parent: claudbg-qpfe
---

Add `--color` / `--no-color` as a global CLI flag (available on all commands). When not specified, auto-detect: enable color if stdout is a tty and NO_COLOR is unset/empty. Honor the NO_COLOR environment variable (any non-empty value → disable color), per the NO_COLOR spec. This flag controls all ANSI output in the CLI (transcripts etc).

## Summary of Changes

Already implemented prior to this bean being created. `GlobalOpts` in `src/cli.rs` has `--color`/`--no-color` flags and `color_enabled()` respects `NO_COLOR` env var per spec.