diff --git a/README.md b/README.md
index 6bbb0b1..bc8fe44 100644
--- a/README.md
+++ b/README.md
@@ -31,9 +31,10 @@ Battle-tested across real production repositories; examples below use neutral pl
 ```bash
 git clone https://github.com/ReidenXerx/gitnexus-agent-kit.git
 cd gitnexus-agent-kit
-./bin/install.sh                    # interactive — pick Cursor, Zed, or both
-./bin/install.sh /path/to/repo --runtime zed   # Zed + Ollama profile
-./bin/install.sh /path/to/repo --runtime both  # Cursor hooks + Zed profile
+./bin/install.sh                    # interactive — pick Cursor, Zed, Claude Code, or all
+./bin/install.sh /path/to/repo --runtime all    # Cursor + Zed + Claude Code
+./bin/install.sh /path/to/repo --runtime claude # Claude Code hooks + MCP + CLAUDE.md
+./bin/install.sh /path/to/repo --runtime zed    # Zed + Ollama profile
 # → restart your IDE → npm run gitnexus:health → new Agent chat
 ```
 
diff --git a/bin/install.sh b/bin/install.sh
index 25e120c..6402266 100755
--- a/bin/install.sh
+++ b/bin/install.sh
@@ -1,6 +1,7 @@
 #!/usr/bin/env bash
 # Install gitnexus-agent-kit into a target git repo (interactive if no path given).
-# Usage: ./bin/install.sh [/path/to/repo] [--runtime cursor|zed|both] [--quick] [--no-setup]
+# Usage: ./bin/install.sh [/path/to/repo] [--runtime cursor|zed|claude|both|all] [--quick] [--no-setup]
+#   runtime: cursor · zed · claude · both (=cursor+zed, default) · all (=cursor+zed+claude) · comma-list e.g. cursor,claude
 set -euo pipefail
 
 KIT_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
@@ -8,13 +9,14 @@ TARGET="${1:-}"
 
 if [[ -z "$TARGET" ]] || [[ "$TARGET" == "--interactive" ]] || [[ "$TARGET" == "-h" ]] || [[ "$TARGET" == "--help" ]]; then
   if [[ "$TARGET" == "-h" ]] || [[ "$TARGET" == "--help" ]]; then
-    sed -n '2,3p' "$0" | sed 's/^# *//'
+    sed -n '2,4p' "$0" | sed 's/^# *//'
     echo ""
     echo "Examples:"
     echo "  $0                              # interactive (pick IDE + repo path)"
     echo "  $0 --interactive                # interactive"
     echo "  $0 ../my-service"
-    echo "  $0 ../my-app --runtime zed --quick"
+    echo "  $0 ../my-app --runtime all              # Cursor + Zed + Claude Code"
+    echo "  $0 ../my-app --runtime claude --no-setup"
     echo "  $0 ../my-app --runtime both --repo-name my-app"
     exit 0
   fi
diff --git a/bin/update.sh b/bin/update.sh
index 75e1f18..ad75941 100755
--- a/bin/update.sh
+++ b/bin/update.sh
@@ -1,14 +1,17 @@
 #!/usr/bin/env bash
-# Update gitnexus-agent-kit in a target repo.
-# Usage: ./bin/update.sh /path/to/repo [--runtime cursor|zed|both] [--full] [--no-setup] [--skip-verify]
-#        ./bin/update.sh --all [search-root] [--runtime cursor|zed|both] [--no-setup] [--skip-verify]
+# Update gitnexus-agent-kit in a target repo. Reads the runtime from the manifest — pass
+# --runtime only to CHANGE it (cursor|zed|claude|both|all, comma-list allowed).
+# Fresh clone? The manifest (.gitnexus/agent-kit-manifest.json) is gitignored, so it's absent and
+# update prints "Not installed. Run install first." — use ./bin/install.sh <repo> --runtime <rt> instead.
+# Usage: ./bin/update.sh /path/to/repo [--runtime ...] [--full] [--no-setup] [--skip-verify]
+#        ./bin/update.sh --all [search-root] [--runtime ...] [--no-setup] [--skip-verify]
 set -euo pipefail
 
 KIT_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
 TARGET="${1:-}"
 
 if [[ -z "$TARGET" ]] || [[ "$TARGET" == "-h" ]] || [[ "$TARGET" == "--help" ]]; then
-  sed -n '2,4p' "$0" | sed 's/^# *//'
+  sed -n '2,7p' "$0" | sed 's/^# *//'
   exit 0
 fi
 
diff --git a/docs/QUICKSTART.md b/docs/QUICKSTART.md
index e1ce2ce..1a1f8fe 100644
--- a/docs/QUICKSTART.md
+++ b/docs/QUICKSTART.md
@@ -11,7 +11,7 @@ Install **gitnexus-agent-kit** into any git repo. The kit copies hooks, rules, s
 | Node.js ≥ 22.9.0 | `node -v` |
 | git | Target must be a worktree |
 | bash | macOS / Linux / WSL |
-| Cursor and/or Zed | Pick runtime at install (default: both) |
+| Cursor / Zed / Claude Code | Pick runtime at install: `cursor` · `zed` · `claude` · `both` (=cursor+zed, default) · `all` (=cursor+zed+claude) |
 
 After `--quick` install, run `npm run gitnexus:agent-refresh` in the **target repo** before graph tools work.
 
@@ -33,6 +33,12 @@ cd gitnexus-agent-kit
 # Zed + Ollama profile only
 ./bin/install.sh /path/to/your-repo --runtime zed
 
+# Everything — Cursor + Zed + Claude Code
+./bin/install.sh /path/to/your-repo --runtime all
+
+# Claude Code only (hooks + MCP + CLAUDE.md)
+./bin/install.sh /path/to/your-repo --runtime claude
+
 # Hooks/skills only — index later
 ./bin/install.sh /path/to/your-repo --quick
 
@@ -48,7 +54,7 @@ Custom GitNexus registry name (when folder basename ≠ indexed repo name):
 
 ## After install (target repo)
 
-1. **Restart your IDE** on the target project — MCP + hooks (Cursor) or agent profile (Zed) load on restart.
+1. **Restart your IDE** on the target project — MCP + hooks (Cursor), agent profile (Zed), or hooks + MCP + `CLAUDE.md` (Claude Code) load on restart.
 2. `npm run gitnexus:verify` — runtime-aware kit audit (also runs at end of install).
 3. `npm run gitnexus:health` — human-friendly status for your team.
 4. Open a **new Agent chat** and describe your task.
@@ -76,11 +82,13 @@ Skills live once in `.gnkit/skills/` and are **symlinked** — not copied — in
 ## Update
 
 ```bash
-./bin/update.sh /path/to/your-repo
-./bin/update.sh /path/to/your-repo --runtime both   # ensure Cursor + Zed after old Cursor-only install
+./bin/update.sh /path/to/your-repo                  # keeps the installed runtime (read from the manifest)
+./bin/update.sh /path/to/your-repo --runtime all    # CHANGE runtime, e.g. add Claude Code to an old install
 ```
 
-Default: `--quick` (skips full re-index). **Migration runs on every update** — old rsync'd `.cursor/skills/*`, `.claude/skills/*`, legacy manifest, and Zed profile key `gitnexus` are cleaned automatically.
+`update` reads the runtime from the manifest, so you only pass `--runtime` to **change** it. Default: `--quick` (skips full re-index). **Migration runs on every update** — old rsync'd `.cursor/skills/*`, `.claude/skills/*`, legacy manifest, and Zed profile key `gitnexus` are cleaned automatically.
+
+> **Fresh clone of an already-installed repo?** The manifest (`.gitnexus/agent-kit-manifest.json`) is **gitignored**, so it isn't in a new clone — `update` will stop with *"Not installed. Run install first."* That's expected: run **`./bin/install.sh /path/to/repo --runtime all --no-setup`** instead. Install is idempotent — it re-materializes the current bundle and rewrites the manifest without touching your code.
 
 Bulk update every installed repo under a workspace root: