diff --git a/AGENTS.md b/AGENTS.md
index 02405ea..22a56c7 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -17,6 +17,7 @@
 - Focused frontend typecheck: `npx tsc --noEmit`
 - Local dev stack: `docker compose -f docker-compose.dev.yml up --build`
 - Production stack: `docker compose up --build`
+- Solo landing: after review and verification, squash-land a feature branch with `bash scripts/land-branch.sh <feature-branch> "<conventional commit message>"`; do not commit directly on `main`.
 
 ## Repo-Specific Gotchas
 
diff --git a/scripts/land-branch.sh b/scripts/land-branch.sh
new file mode 100755
index 0000000..507d9e9
--- /dev/null
+++ b/scripts/land-branch.sh
@@ -0,0 +1,208 @@
+#!/usr/bin/env bash
+# land-branch.sh — Solo-local integrate: squash-merge feature branch onto main and push.
+# Requires GIT_BIGPOWERS_LAND=1 for hook exceptions on commit/push to protected branches.
+# Usage: bash scripts/land-branch.sh <feature-branch> "<conventional commit message>"
+# Run from the primary repository root (not a linked worktree).
+set -euo pipefail
+
+CONVENTIONAL_REGEX='^(feat|fix|docs|style|refactor|perf|test|build|ci|chore|revert)(\(.+\))?!?: .+'
+
+usage_land() {
+  echo "Usage: $0 <feature-branch> \"<conventional commit message>\" [--skip-verify]" >&2
+  echo "  Run from primary repo root after release-branch gates (solo-local mode)." >&2
+  exit 1
+}
+
+land_branch_deny() {
+  echo "ERROR: $1" >&2
+  exit 1
+}
+
+SKIP_VERIFY=false
+ARGS=()
+for arg in "$@"; do
+  if [ "$arg" = "--skip-verify" ]; then
+    SKIP_VERIFY=true
+  else
+    ARGS+=("$arg")
+  fi
+done
+
+FEATURE_BRANCH="${ARGS[0]:-}"
+COMMIT_MSG="${ARGS[1]:-}"
+
+[ -n "$FEATURE_BRANCH" ] && [ -n "$COMMIT_MSG" ] || usage_land
+
+if [[ ! "$COMMIT_MSG" =~ $CONVENTIONAL_REGEX ]]; then
+  land_branch_deny "Commit message must follow Conventional Commits: <type>(<scope>): <subject>"
+fi
+
+if [ ${#COMMIT_MSG} -gt 72 ]; then
+  land_branch_deny "Commit subject line must be 72 characters or less"
+fi
+
+# Block AI agent attribution (P1 — CONVENTIONS.md § Git Attribution)
+if echo "$COMMIT_MSG" | grep -qiE '^co[- ]authored[- ]by:' || echo "$COMMIT_MSG" | grep -qiE '\nco[- ]authored[- ]by:'; then
+  land_branch_deny "Commit must not include Co-authored-by: footer. All commits must appear as if authored solely by the human user."
+fi
+
+# Primary worktree only (.git is a directory, not a gitdir pointer file)
+if [ -f .git ]; then
+  land_branch_deny "Run from the primary repository root, not a linked worktree (cd to main repo first)"
+fi
+
+detect_default_branch() {
+  local remote_head
+  remote_head=$(git symbolic-ref refs/remotes/origin/HEAD 2>/dev/null | sed 's@^refs/remotes/origin/@@' || true)
+  if [ -n "$remote_head" ]; then
+    echo "$remote_head"
+    return
+  fi
+  if git show-ref --verify --quiet refs/heads/main; then
+    echo "main"
+  elif git show-ref --verify --quiet refs/heads/master; then
+    echo "master"
+  else
+    land_branch_deny "Could not detect default branch (main/master)"
+  fi
+}
+
+DEFAULT_BRANCH=$(detect_default_branch)
+REPO_ROOT=$(pwd)
+
+echo "==> Land branch: $FEATURE_BRANCH -> $DEFAULT_BRANCH"
+echo "    Repo root: $REPO_ROOT"
+
+if ! git show-ref --verify --quiet "refs/heads/$FEATURE_BRANCH"; then
+  land_branch_deny "Feature branch '$FEATURE_BRANCH' does not exist"
+fi
+
+# Scan all commits in feature branch for Co-authored-by: footers
+if git log "$DEFAULT_BRANCH..$FEATURE_BRANCH" --format="%B" 2>/dev/null | grep -qiE '^co[- ]authored[- ]by:'; then
+  land_branch_deny "Feature branch '$FEATURE_BRANCH' contains Co-authored-by: footer(s). Amend commits to remove all AI agent attribution before landing."
+fi
+
+for protected in main master; do
+  if [ "$FEATURE_BRANCH" = "$protected" ]; then
+    land_branch_deny "Cannot land protected branch '$FEATURE_BRANCH'"
+  fi
+done
+
+run_verify_suite() {
+  echo "==> Running pre-land verification..."
+  if [ -f package.json ] && command -v jq >/dev/null 2>&1; then
+    if jq -e '.scripts.compliance' package.json >/dev/null 2>&1; then
+      npm run compliance
+      return
+    fi
+    if jq -e '.scripts.test' package.json >/dev/null 2>&1; then
+      local test_script
+      test_script=$(jq -r '.scripts.test' package.json)
+      if [ "$test_script" = "echo \"Error: no test specified\" && exit 1" ]; then
+        :
+      elif [ "$test_script" = "false" ]; then
+        :
+      else
+        npm test
+        return
+      fi
+    fi
+    if jq -e '.scripts.lint' package.json >/dev/null 2>&1; then
+      npm run lint
+    fi
+  fi
+  if [ -f scripts/sync-skills.sh ]; then
+    bash scripts/sync-skills.sh
+  fi
+}
+
+if [ "$SKIP_VERIFY" = false ]; then
+  run_verify_suite
+else
+  echo "==> Skipping verification (--skip-verify)"
+fi
+
+echo "==> Updating $DEFAULT_BRANCH"
+git checkout "$DEFAULT_BRANCH"
+if ! git diff-index --quiet HEAD -- 2>/dev/null; then
+  land_branch_deny "Working tree on $DEFAULT_BRANCH is not clean. Stash or commit first."
+fi
+
+if git remote get-url origin >/dev/null 2>&1; then
+  git pull --ff-only origin "$DEFAULT_BRANCH" || land_branch_deny "git pull --ff-only failed; resolve before landing"
+fi
+
+if ! git merge-base --is-ancestor "$DEFAULT_BRANCH" "$FEATURE_BRANCH" 2>/dev/null; then
+  land_branch_deny "Feature branch '$FEATURE_BRANCH' is not based on current $DEFAULT_BRANCH (rebase or recreate branch)"
+fi
+
+export GIT_BIGPOWERS_LAND=1
+
+echo "==> Squash merge $FEATURE_BRANCH"
+git merge --squash "$FEATURE_BRANCH"
+if git diff-index --quiet HEAD -- 2>/dev/null; then
+  land_branch_deny "Squash merge produced no changes (already merged?)"
+fi
+
+git commit -m "$COMMIT_MSG"
+LAND_SHA=$(git rev-parse --short HEAD)
+echo "==> Land commit: $LAND_SHA"
+
+if git remote get-url origin >/dev/null 2>&1; then
+  echo "==> Pushing $DEFAULT_BRANCH to origin"
+  git push origin "$DEFAULT_BRANCH"
+fi
+
+# Epic capsule archival (evolved bigpowers v4.0.0+)
+# Move completed epic capsules to archive when all stories are done
+echo "==> Checking for completed epic capsules to archive..."
+if [ -d specs/epics ] && [ -f specs/execution-status.yaml ]; then
+  for capsule in specs/epics/e[0-9]*-*/; do
+    [ -d "$capsule" ] || continue
+    capsule_name=$(basename "$capsule")
+    epic_id=$(echo "$capsule_name" | grep -o '^e[0-9]*' || true)
+    [ -n "$epic_id" ] || continue
+    # Check if all stories in this epic are done
+    ALL_DONE=true
+    if [ -f "$capsule/epic.yaml" ]; then
+      for story_id in $(grep -o 'e[0-9]*s[0-9]*' "$capsule/epic.yaml" 2>/dev/null || true); do
+        STATUS=$(grep "$story_id:" specs/execution-status.yaml 2>/dev/null | awk '{print $2}' || echo "todo")
+        if [ "$STATUS" != "done" ]; then
+          ALL_DONE=false
+          break
+        fi
+      done
+    fi
+    if [ "$ALL_DONE" = true ]; then
+      mkdir -p specs/epics/archive
+      echo "  Archiving completed epic: $capsule_name → specs/epics/archive/"
+      mv "$capsule" "specs/epics/archive/"
+    fi
+  done
+fi
+
+# Worktree cleanup
+WORKTREE_PATH="../$FEATURE_BRANCH"
+if git worktree list --porcelain 2>/dev/null | grep -q "^worktree $WORKTREE_PATH$"; then
+  echo "==> Removing worktree $WORKTREE_PATH"
+  git worktree remove "$WORKTREE_PATH" 2>/dev/null || git worktree remove -f "$WORKTREE_PATH"
+fi
+git worktree prune 2>/dev/null || true
+
+if git show-ref --verify --quiet "refs/heads/$FEATURE_BRANCH"; then
+  git branch -d "$FEATURE_BRANCH" 2>/dev/null || {
+    echo "WARN: Could not delete branch $FEATURE_BRANCH (not fully merged? use -D manually if intended)"
+  }
+fi
+
+git checkout "$DEFAULT_BRANCH"
+
+echo ""
+echo "Land complete."
+echo "  Branch:   $FEATURE_BRANCH (removed)"
+echo "  Commit:   $LAND_SHA on $DEFAULT_BRANCH"
+echo "  Message:  $COMMIT_MSG"
+echo "  cwd:      $(pwd)"
+echo "  current:  $(git branch --show-current)"
+echo ""
+echo "semantic-release will pick up the push to $DEFAULT_BRANCH when configured."