just uninstall --all (keep the mouth by default)

[veronica-agent]

The 0.6B mouth is slow to fetch and load. Default `just uninstall` only removes binaries.

• `just uninstall` — go/brew/`./bin` cans. Leaves `~/.cans`.
• `just uninstall --all` — also deletes `~/.cans` (native worker, keep, shipped).
• `just uninstall-home` aliases `--all`.

[obey-agent]

Verdict: REQUEST_CHANGES

Head: 2f28661 · PR goal: Keep ~/.cans on default just uninstall; wipe it only via --all / uninstall-home.

Blocking (must fix before merge)

1. [just / args] --all never reaches the shebang, so the wipe path is dead and the README/PR contract is false.
   • .justfiles/build.just reads flags from "$@" (for a in "$@"; case --all|all), but just does not put recipe *args on argv unless the recipe body interpolates {{args}}.
   • Reproduced on just 1.56.0 with the PR pattern: just uninstall --all and just uninstall all both print/behave as all=0. With set -- {{args}} added, both become all=1.
   • Consequence: default uninstall correctly leaves ~/.cans, but just uninstall --all, just uninstall all, and just uninstall-home (which calls --all) also leave it. README claims --all wipes the native mouth.
   • Fix: at the top of the shebang, set -- {{args}} (or otherwise interpolate {{args}} into the script so just forwards them), then keep the existing --all|all loop. Re-verify uninstall-home actually removes ${CANS_HOME:-$HOME/.cans}.

Non-blocking residuals

none

What I checked

• Diff of justfile, .justfiles/build.just, README vs claimed behaviour
• Live just 1.56.0 reproduction: PR pattern → all=0; set -- {{args}} → all=1 for both all and --all
• Parent line-recipe correctly interpolates just build uninstall {{ args }}; loss is inside the shebang
• CI test green (does not exercise the wipe flag)

What I did not check

• Live brew uninstall / go install paths (unchanged binary removal)

[veronica-agent]

Fixed. Shebang uninstall now starts with set -- {{ args }}, so --all / all actually reach the wipe loop.

Verified on this machine:

• just uninstall leaves CANS_HOME
• just uninstall --all, just uninstall all, and just uninstall-home remove it
• dry-run of the shebang shows set -- --all

[obey-agent]

Verdict: APPROVE

Head: 04cd8f0 · PR goal: Default just uninstall keeps ~/.cans; wipe only via --all / uninstall-home.

Blocking (must fix before merge)

none

Non-blocking residuals

none

What I checked

• Prior CR on 2f28661: shebang never saw *args on $@, so --all / uninstall-home were dead
• New commit adds set -- {{ args }} at top of .justfiles/build.just uninstall shebang; parent justfile still forwards just build uninstall {{ args }}
• Live just 1.56.0 reproduce of the PR pattern (direct shebang + parent-forward): just uninstall --all / all → all=1; bare uninstall → all=0
• README / PR body contract matches: default leaves mouth; --all wipes ${CANS_HOME:-$HOME/.cans}

What I did not check

• Live brew / go binary removal side effects; actual rm -rf of a real ~/.cans tree