All three hooks changed shebang from bash to sh. No bashisms were in use
(no [[, no local, no arrays) so only the interpreter line moved. Verified
with sh -n, and dash smoke-run with a sample tool_input JSON.
Explains that 8 of 34 blocks are used by shipped manifests; the other 26
feed the /new-agent wizard. Adds a v0.1.1 disclaimer that re-running
install.sh backs up kit-owned directories and hook files to .bak-TIMESTAMP.
Adds --activate-hooks flag for non-interactive hook activation, plus a
TTY prompt at end-of-install. Merge is jq-based, groups by matcher, and
de-dupes hook entries by command — idempotent across re-runs. Existing
user hooks on the same matcher are preserved. Non-TTY without the flag
keeps the manual instructions.
If cargo build or any later step fails, the ERR trap walks the list of
backups created during this run and atomically swaps each .bak-TIMESTAMP
back onto its original. Idempotent via ROLLED_BACK guard. On success
nothing is rolled back — backups remain as the user's recovery copy.
_blocks/memory-protocol.md references ~/.claude/memory/MEMORY.md, but the
installer previously only scaffolded agents/ hooks/ skills/ — so the first
agent that followed the block would fail reading a non-existent index.
Now mkdir -p ~/.claude/memory and, only when MEMORY.md is absent, write a
minimal placeholder (frontmatter + pointer to the block). User-edited
MEMORY.md is never overwritten.
root.parent().unwrap() at main.rs:45 panicked if AGENT_ROOT pointed at a
filesystem root (e.g. AGENT_ROOT=/). Now falls back to root itself via
.unwrap_or(root.as_path()) so the 'OK <manifest> → <path>' line just
prints the absolute path in that edge case instead of aborting.
All three hooks used `set -eu` + `cat | jq …`. Without jq installed, jq
would fail and `-e` would abort the hook → non-zero exit → Claude Code
refuses Edit/Write/Bash system-wide. Now each hook probes for jq BEFORE
`set -eu` and exits 0 silently if absent. Also dropped the useless `cat |`
pipe — `jq -r` reads stdin directly.
Companion: install.sh jq check upgraded from warn to hard `exit 1` because
without jq the hooks are dead weight; message states jq is required on
any machine that will activate the hooks.
Previously cp -f clobbered user-edited _blocks/, _templates/, _assembler/,
hooks/, and skills/ silently — violating the README's "idempotent" claim
on re-run. Now each of those targets is snapshotted to a timestamped
<target>.bak-$(date +%s)/ sibling before overwrite, but only when the
target actually contains regular files (freshly-mkdir'd scaffolds are
skipped). _manifests/ unchanged — already uses per-file skip-if-exists.
Kit source ($KIT_DIR) is never backed up.
