fix(terminal): read the colour env from the registry on every local spawn path

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buildClaudeEnv(), the direct-PTY fallback taken when mux creation fails, now
reads getCli('claude').env and applies its unset and exports lists. It used to
delete COLORTERM and CLAUDECODE from a hand-maintained list of its own, which
left it contradicting the registry entry that the tmux pane and the attach
client both read. An engine value needing a mux name has nothing to resolve
against on this path, so it is skipped rather than guessed.

Claude no longer unsets NO_COLOR. The invisible-background bug does not need
it, and unsetting it overrides a preference the user set deliberately, so a
user who exports NO_COLOR globally keeps monochrome panes. The other seven
truecolor CLIs still unset it; that inconsistency is intentional and the
comment on the entry says so.

The invariants doc gains a Terminal colour env paragraph under Session launch
modes, where a reader looking up Claude will find it — the previous sentence
sat under a heading that lists only the non-Claude CLIs. It now says the lists
are the stock catalog and a clis.json override replaces them wholesale, and
that the declarations reach the tmux pane, its attach client and the direct
PTY but not a remote pane, whose command carries no env exports at all. Docker
hands COLORTERM=truecolor to every mode, including the two the registry says
must unset it.

The changeset named six peer CLIs and there are seven: deepseek also exports
truecolor. A test beside the existing OpenCode assertion pins the new
behaviour, so a future registry edit cannot make the backgrounds vanish again
in silence.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

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This commit is contained in:

Michael Grundberg

2026-09-13 14:42:30 +02:00

co-authored by Claude Opus 5

parent 7767b16d4f

commit dae2ac580f

5 changed files with 43 additions and 9 deletions

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docs/architecture-invariants.md

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