Layer C of the plan written after the 2026-09-21 wipe (BDR-095): a reviewer
sub-agent traced `lftp mirror --delete` against a local file:// tree, the
prose tiers named neither lftp nor a local trace, the brief had authorized
it, and four days of commits had never left the machine.
- gitflow: `start` pushes the branch with its upstream, merge targets are
pushed after each merge, and `init`/`install-hook` write post-commit and
post-merge hooks that push every commit as it lands (warn, never block;
GITFLOW_NO_PUSH=1 for throwaway repos). T18 + T19 (installed == emitted).
- hooks/unpushed-guard.sh on SessionStart and Stop: branch ahead of its
upstream, no upstream, or no origin. Non-blocking systemMessage.
- settings.json: static deny for transfer and mirror tools, rsync --delete,
xargs rm, pipe-to-shell, chmod/chown -R, sudo/doas/pkexec, disk tools,
chattr, docker volume drops/prune/--privileged/socket/-v /:, git history
destruction, --no-verify and core.hooksPath; new hard_deny "destructive
tool against a local path, brief carries no user authority"; soft_deny
reworded + discarding uncommitted work; environment records the incident.
- CLAUDE.global.md "Destructive tools & data loss"; the four report-only
agents trace by reading, never by running, whatever the brief says.
- lib/tests/guard-bash.test.sh: executable spec of the PreToolUse guard
(214 cases). The hook itself is not shipped (BLK-022); the spec skips.
make plugin never installed impeccable. The 3.2.0 pin had rotted upstream
(the CLI fetches its skill dist at install time; that release's zip is
gone), the --scope=project staging moved the skill dir alone and dropped
the 4 impeccable-* subagents, and /impeccable init was never announced.
Step 8d now installs at --scope=global straight through the
~/.claude/{skills,agents} symlinks into the repo (both paths gitignored),
guards on those symlinks existing, keeps a profile-parked copy parked,
falls back to @latest on a pin failure with a bump-the-lock warning, and
prints the per-project init hint. update-all.sh mirrors the shape.
Found while probing: with a copy already installed a rotted pin exits 0
("Could not check for skill updates ... left unchanged"), byte-identical
on disk to an up-to-date rerun, so imp_install reads the installer output
instead of trusting the exit code. Harness 4/4 in a sandbox HOME with the
real installer.
plugins.lock.json: impeccable 3.2.0 -> 4.1.0 (CLI only). link.sh drops
impeccable from EXTERNAL_SKILLS. lib/design-gate.md section 5: suggest-only
/impeccable init check when a frontend project has no PRODUCT.md.
Upstream supersedes `@21st-dev/magic` with `@21st-dev/cli` (bin `21st`):
same endpoint, `21st login` in place of an API key, no MCP process loaded
into every session.
- install-plugins.sh Step 8.7: `npm i -g @21st-dev/cli` (pinned in
plugins.lock.json), staged `21st skills install`, TTY-only login offer,
pack disabled by default. update-all.sh 7.4 refreshes both.
- The documented `21st install-skill` cannot be used: the installer refuses
to follow a symlink on the target path and `~/.claude/skills` is one. The
install runs under a throwaway HOME and the result moves into
skills-external/21st-* (gitignored), symlinked on demand.
- toggle-external.sh manages `21st` as a pack (names globbed from
skills-external/21st-*, parked under plain names). `magic` is gone.
- The 5 design skills join design/web/web-full/full and MANAGED_EXTERNALS;
21st-registry and 21st-design-sync stay parked. MANAGED_MCPS is now empty
and profile.sh's dead magic branches are removed.
- Design gate: GATE-BLOCK gains `21st` (required-manual, magic's old slot)
and `21st-ui-build`; PATH repair extended to the npm global bin.
- settings.json: the 4 mcp__magic__* ask entries go; the outward-facing
21st verbs land in autoMode.soft_deny, the tier that holds under auto
mode (LRN-153).
- Docs: README, CLAUDE.global.md, design-gate.md, profile SKILL.md,
.env.example, .gitleaks.toml, link.sh. BDR-093, LRN-158.
Tests: profile-set-managed 17/17, make test green except 2 pre-existing
gitflow FAILs (gitleaks binary absent on this host), shellcheck clean.
bastien