diff --git a/.claude/agent-notes.md b/.claude/agent-notes.md
index 79b1027..e7fd2f5 100644
--- a/.claude/agent-notes.md
+++ b/.claude/agent-notes.md
@@ -16,3 +16,4 @@ update or remove the stale line rather than leaving both.
 - User-facing docs (README, CHANGELOG) must not mention features that never shipped; 1.0.0 is the first release, so there is no prior version to reference.
 - CHANGELOG follows GitHub release-notes format (`## What's Changed` + PR URLs), listing shipped features only — not Keep a Changelog / Unreleased / pre-1.0 fix archaeology. PR URLs remain even after the git history wipe.
 - Do not mention previous code, removed subcommands, or pre-v1.0 archaeology anywhere in the tree (docs, comments, tests). Forward-looking constraints and current git-behavior rationale are fine; unused merged-branch/`rev-list` guidance and a dedicated `clean` unknown-command test are not.
+- Do not remove an `init` container on agent-seeding failure; return nonzero and leave the directory.
diff --git a/README.md b/README.md
index 75c41ca..cd05377 100644
--- a/README.md
+++ b/README.md
@@ -72,7 +72,7 @@ does, you could do with `git worktree` by hand.
 `init` and `add` produce different things — the container first, working copies
 after:
 
-```
+```text
 After `git trees init`:            After `git trees add feature-x`:
 
 some-repo/                         some-repo/
@@ -120,6 +120,7 @@ cd git-trees && ./install.sh              # → ~/.local/bin
 **Convenience — one-line curl.** Fetches only the script:
 
 ```bash
+mkdir -p ~/.local/bin
 curl -o ~/.local/bin/git-trees \
   https://raw.githubusercontent.com/brightdigit/git-trees/v1.0.0/git-trees
 chmod +x ~/.local/bin/git-trees
@@ -145,17 +146,6 @@ case ":$PATH:" in *":$HOME/.local/bin:"*) ;; *)
 `install.sh` warns if it isn't; the curl path cannot. Anything on `PATH` named
 `git-trees` becomes `git trees`.
 
-### Uninstall
-
-```bash
-./install.sh --uninstall              # clears ~/.local/bin and /usr/local/bin
-./install.sh --uninstall /opt/bin     # or the prefix you installed to
-```
-
-Pass the same directory you installed to — without it, a custom-prefix install is
-left behind. Uninstall does **not** remove `~/.config/git-trees/AGENTS.md`; it
-says so, and you can delete it yourself.
-
 ## Configuration
 
 All three variables are optional. Add to `~/.zshrc` (or `~/.bashrc`):
@@ -220,8 +210,8 @@ Creates a worktree, handling three cases:
 | Branch exists on `origin` | Fetch, create with `--track` |
 | Branch is new | Create from `base` (default `origin/<default>`) with `--no-track` |
 
-> **`add` writes to the remote.** Upstream is always set afterward via `track`.
-> If the branch does not exist on `origin`, that runs
+> **`add` writes to the remote by default.** When pushing is enabled, upstream is
+> set afterward via `track`. If the branch does not exist on `origin`, that runs
 > `git push -u origin HEAD` — **which creates the branch on the remote.** This
 > is a reasonable default for parallel coding agents, which need an upstream to
 > push to, but it means a local-feeling command fires CI, sends notifications,
diff --git a/install.sh b/install.sh
index f1bdd27..8f13374 100755
--- a/install.sh
+++ b/install.sh
@@ -3,44 +3,12 @@
 #
 #   ./install.sh                      install to ~/.local/bin
 #   ./install.sh /usr/local/bin       install elsewhere
-#   ./install.sh --uninstall          remove from the two default locations
-#   ./install.sh --uninstall /opt/bin remove from the prefix you installed to
 
 set -uo pipefail
 
 SRC="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 CFG="$HOME/.config/git-trees"
 
-if [ "${1:-}" = "--uninstall" ]; then
-  # Honor the same DEST as install. Without an argument, sweep the two defaults;
-  # a custom-prefix install would otherwise be left behind silently.
-  if [ -n "${2:-}" ]; then
-    set -- "$2"
-  else
-    set -- "$HOME/.local/bin" /usr/local/bin
-  fi
-
-  removed=0
-  for d in "$@"; do
-    if [ -e "$d/git-trees" ]; then
-      if rm -f "$d/git-trees"; then
-        echo "removed $d/git-trees"
-        removed=1
-      fi
-    fi
-  done
-
-  if [ "$removed" -eq 0 ]; then
-    echo "install.sh: no git-trees found in $*" >&2
-    echo "  if you installed elsewhere, pass it: ./install.sh --uninstall <dir>" >&2
-  fi
-
-  if [ -e "$CFG/AGENTS.md" ]; then
-    echo "left $CFG/AGENTS.md in place — remove it yourself if you want it gone"
-  fi
-  exit 0
-fi
-
 DEST="${1:-$HOME/.local/bin}"
 
 [ -f "$SRC/git-trees" ] || { echo "install.sh: git-trees not found in $SRC" >&2; exit 1; }
diff --git a/tests/smoke.sh b/tests/smoke.sh
index e8d73c2..a84de23 100755
--- a/tests/smoke.sh
+++ b/tests/smoke.sh
@@ -91,8 +91,12 @@ assert_no_hang() { # assert_no_hang <label> <cmd...>
 
 # --- fixtures ----------------------------------------------------------------
 
-git config --global user.email >/dev/null 2>&1 || git config --global user.email smoke@example.com
-git config --global user.name  >/dev/null 2>&1 || git config --global user.name  Smoke
+# Isolate from the developer's ~/.gitconfig. Identity via env is enough for
+# commits; GIT_CONFIG_GLOBAL keeps any incidental `git config --global` off disk
+# outside $TMP.
+export GIT_CONFIG_GLOBAL="$TMP/gitconfig"
+export GIT_AUTHOR_NAME=Smoke GIT_AUTHOR_EMAIL=smoke@example.com
+export GIT_COMMITTER_NAME=Smoke GIT_COMMITTER_EMAIL=smoke@example.com
 
 # An upstream with `main`, `feature-x`, and a pre-existing slash branch (as a
 # real repo has), served over file://.
@@ -358,7 +362,11 @@ NP=$(new_container nopush-c)
 cd "$NP" || exit 1
 
 out=$(bash "$T" add solo --no-push 2>&1)
-assert_ok "add --no-push exits 0" bash "$T" add solo2 --no-push
+assert_eq "add --no-push exits 0" "$?" "0"
+assert_ok "--no-push created the worktree" test -d solo
+assert_eq "--no-push checked out the branch" \
+  "$(git -C solo symbolic-ref --short HEAD 2>/dev/null)" "solo"
+assert_ok "add solo2 --no-push exits 0" bash "$T" add solo2 --no-push
 assert_fail "--no-push did not create the branch on origin" \
   git ls-remote --exit-code --heads origin solo
 assert_fail "--no-push left the upstream unset" \