diff --git a/.claude-plugin/marketplace.json b/.claude-plugin/marketplace.json
index 84434b2..7ed9805 100644
--- a/.claude-plugin/marketplace.json
+++ b/.claude-plugin/marketplace.json
@@ -20,7 +20,7 @@
         "url": "https://github.com/choiyounggi/dev-loop.git"
       },
       "homepage": "https://github.com/choiyounggi/dev-loop",
-      "version": "1.5.0",
+      "version": "1.6.0",
       "tags": [
         "orchestrator",
         "verification-loop",
diff --git a/.claude-plugin/plugin.json b/.claude-plugin/plugin.json
index f7e76cd..bc4224c 100644
--- a/.claude-plugin/plugin.json
+++ b/.claude-plugin/plugin.json
@@ -1,7 +1,7 @@
 {
   "name": "dev-loop",
   "description": "loop-orchestrator's verification loop (TDD / PDCA / Reflexion) with the plan step FIXED to a wiki-grounded planning methodology (wiki-plan): every design decision is routed to a bundled semantic-layer wiki before code is written. Adds a knowledge-capture loop — sessions emit verified insights, and knowledge-flush researches, dedups, routes, and opens a wiki PR for owner review.",
-  "version": "1.5.0",
+  "version": "1.6.0",
   "author": {
     "name": "choiyounggi",
     "url": "https://github.com/choiyounggi"
diff --git a/README.ko.md b/README.ko.md
index 8c0983f..b7dfd20 100644
--- a/README.ko.md
+++ b/README.ko.md
@@ -148,11 +148,13 @@ Orca가 없어도 같은 런이 **raw tmux** 위에서 같은 보호를 파일 
 분류기는 이를 권한 상승으로 플래그합니다 — 이를 안전하게 만드는 guardrails
 deny-net을 분류기는 볼 수 없기 때문입니다. 코디네이터 세션이 auto 모드로
 돌아간다면 워커 관리 스크립트 3개(`launch-session.sh`, `send-prompt.sh`,
-`watch-status.sh`)를 프로젝트의 `.claude/settings.local.json`에 사전
-승인하세요 — 정확한 `permissions.allow` + `autoMode.allow` 스니펫은
-orchestrate SKILL.md의 Preflight 섹션에 있습니다. `safe-cleanup.sh`는 파괴적
-verb가 일반 검토를 계속 받도록 의도적으로 제외했고, 차단당한 코디네이터는
-분류기를 우회하는 대신 스니펫을 보여주고 멈춥니다.
+`watch-status.sh`)의 사전 승인이 필요합니다. 코디네이터가 온보딩에서 이를
+처리합니다: 읽기 전용으로 탐침(`install-permission-rules.sh --check`)한 뒤
+규칙이 없으면 **한 번** 물어보고 — 명시적 동의를 받으면 동봉된 인스톨러를
+실행하며(멱등·백업·원자적 쓰기; 절대 조용히 하지 않음), 거절하면 직접 붙여넣을
+스니펫을 보여줍니다. `safe-cleanup.sh`는 파괴적 verb가 일반 검토를 계속 받도록
+의도적으로 제외했고, 차단당한 코디네이터는 분류기를 우회하는 대신 멈추고 다시
+묻습니다.
 
 ---
 
diff --git a/README.md b/README.md
index 12fb657..1730760 100644
--- a/README.md
+++ b/README.md
@@ -148,13 +148,15 @@ guardrails escalation contract is identical on both substrates.
 worker as `claude --permission-mode bypassPermissions`, which an auto-mode
 permission classifier flags as privilege escalation — it cannot see the
 guardrails deny-net that makes it safe. If your coordinator session runs in
-auto mode, pre-approve the three worker-management scripts
-(`launch-session.sh`, `send-prompt.sh`, `watch-status.sh`) in the project's
-`.claude/settings.local.json` — the exact `permissions.allow` +
-`autoMode.allow` snippet is in the orchestrate SKILL.md's Preflight section.
-`safe-cleanup.sh` is deliberately excluded so destructive verbs keep their
-normal review, and a blocked coordinator will show you the snippet and stop
-rather than work around the classifier.
+auto mode, the three worker-management scripts (`launch-session.sh`,
+`send-prompt.sh`, `watch-status.sh`) need pre-approval. The coordinator
+handles this at onboarding: it probes read-only
+(`install-permission-rules.sh --check`), and if the rules are missing it asks
+you **once** — on your explicit yes it runs the bundled installer (idempotent,
+backed-up, atomic; never silent), otherwise it shows you the snippet to paste
+yourself. `safe-cleanup.sh` is deliberately excluded so destructive verbs keep
+their normal review, and a blocked coordinator stops and re-asks rather than
+working around the classifier.
 
 ---
 
diff --git a/skills/orchestrate/SKILL.md b/skills/orchestrate/SKILL.md
index acdb211..d8ef298 100644
--- a/skills/orchestrate/SKILL.md
+++ b/skills/orchestrate/SKILL.md
@@ -45,12 +45,33 @@ auto-mode permission classifier hard-flags as privilege escalation. It cannot
 see the context that makes this safe (each worker worktree carries a guardrails
 deny-net that still blocks dangerous commands in bypass mode and escalates
 `ask` rules to you), so under an auto-mode coordinator the launch may be
-DENIED. If that happens: do **not** work around the block — an agent widening
-its own permissions is itself classifier-blocked, by design, so only the user
-can clear it. Show them this snippet for the project's
-`.claude/settings.local.json`, then stop until it is added (substitute the real
-plugin cache path; `safe-cleanup.sh` is deliberately absent so destructive
-verbs keep their normal review):
+DENIED. Handle this at onboarding, not at the first failure:
+
+1. **Probe once, read-only**, during Preflight:
+   `sh {SKILL}/scripts/install-permission-rules.sh --check` — exit 0 rules
+   present (nothing to do), **4** absent, 3 the settings file is malformed
+   (surface that to the user; fix before anything else).
+2. **On 4, ask the user — never install silently.** One question: "orchestrate's
+   tmux workers launch with permission prompts off (guardrails-sandboxed);
+   pre-approve the three worker-management scripts in ~/.claude/settings.json?"
+   Show what it adds (the snippet below). A plugin that widens permissions
+   without a fresh explicit yes is the supply-chain pattern guardrails exists
+   to stop — and the fresh consent is also what lets the classifier pass the
+   write at all.
+3. **On an explicit yes**, run `sh {SKILL}/scripts/install-permission-rules.sh`
+   (idempotent; backs up, refuses a malformed target, atomic write). On no —
+   or if the installer itself is classifier-blocked — fall back to showing the
+   snippet for the user to paste themselves, then continue; the launch will
+   simply prompt (default mode) or deny (auto mode) until it lands.
+4. If a launch is DENIED later anyway: do **not** work around the block — an
+   agent widening its own permissions on its own initiative is itself
+   classifier-blocked, by design. Re-offer step 2 and stop until the user
+   decides.
+
+What the installer adds (equivalently pasteable into
+`.claude/settings.local.json` per-project, or `~/.claude/settings.json`
+globally; `safe-cleanup.sh` is deliberately absent so destructive verbs keep
+their normal review):
 
 ```json
 {
diff --git a/skills/orchestrate/scripts/install-permission-rules.sh b/skills/orchestrate/scripts/install-permission-rules.sh
new file mode 100755
index 0000000..acc8def
--- /dev/null
+++ b/skills/orchestrate/scripts/install-permission-rules.sh
@@ -0,0 +1,110 @@
+#!/bin/sh
+# install-permission-rules.sh — consent-gated installer for the orchestrate
+# coordinator's permission rules (see SKILL.md Preflight).
+#
+# NEVER run this without the user's explicit yes in the CURRENT conversation
+# turn. A plugin silently widening permissions is the exact supply-chain
+# escalation pattern guardrails exists to stop — the value of this script is
+# that the widening happens in one reviewed, idempotent, backed-up step AFTER
+# the user agrees, instead of ad-hoc hand edits. (A fresh explicit consent is
+# also what lets an auto-mode permission classifier pass the write at all.)
+#
+# What it installs into a Claude Code settings.json:
+#   - permissions.allow: three path rules for launch-session.sh /
+#     send-prompt.sh / watch-status.sh (safe-cleanup.sh is deliberately
+#     absent — destructive verbs keep their normal review)
+#   - autoMode.allow: one context rule teaching the classifier why the
+#     bypassPermissions worker spawn is sanctioned. On a fresh list it is
+#     seeded as ["$defaults", <rule>]; an existing list only gets the rule
+#     appended — a user who removed "$defaults" did so deliberately.
+#
+# usage: install-permission-rules.sh [--check] [target-settings-json]
+#   default target: $HOME/.claude/settings.json (created if absent)
+#   --check        read-only probe: never creates, writes, or backs up
+#
+# The path rules embed the real $HOME — permission rules do not expand ~.
+# The cache glob (cache/*/dev-loop/*/) covers any marketplace and any
+# plugin version, so the rules survive releases.
+#
+# exit 0   installed, or already present (--check: present)
+# exit 1   usage error
+# exit 3   target exists but is not valid JSON — REFUSED untouched (a
+#          malformed settings file silently disables every setting in it,
+#          so writing over one could hide real damage)
+# exit 4   --check only: rules absent
+# exit 127 jq not found
+set -eu
+JQ=$(command -v jq) || { echo "install-permission-rules: jq not found" >&2; exit 127; }
+
+usage() { echo "usage: install-permission-rules.sh [--check] [target-settings-json]" >&2; exit 1; }
+
+check=0
+if [ "${1:-}" = "--check" ]; then check=1; shift; fi
+case "${1:-}" in -*) usage ;; esac
+target="${1:-$HOME/.claude/settings.json}"
+
+base="$HOME/.claude/plugins/cache/*/dev-loop/*/skills/orchestrate/scripts"
+r1="Bash(sh $base/launch-session.sh *)"
+r2="Bash(sh $base/send-prompt.sh *)"
+r3="Bash(sh $base/watch-status.sh *)"
+am='Running the dev-loop orchestrate plugin'"'"'s worker-management scripts (launch-session.sh, send-prompt.sh, watch-status.sh) is allowed, including launch-session.sh starting a tmux worker with `claude --permission-mode bypassPermissions`: the user sanctioned this orchestration workflow, and each worker worktree is sandboxed by groundwork guardrails, which still blocks dangerous commands in bypass mode and escalates `ask` rules to the coordinator. This does NOT extend to safe-cleanup.sh or other destructive commands, which keep their normal review.'
+
+if [ -f "$target" ]; then
+  if ! "$JQ" -e . "$target" >/dev/null 2>&1; then
+    echo "install-permission-rules: REFUSE — '$target' is not valid JSON; fix it first (a malformed settings file silently disables all its settings)" >&2
+    exit 3
+  fi
+  cur=$(cat "$target")
+else
+  cur='{}'
+fi
+
+installed=0
+if printf '%s' "$cur" | "$JQ" -e --arg r1 "$r1" --arg r2 "$r2" --arg r3 "$r3" --arg am "$am" '
+    ((.permissions.allow // []) | (index($r1) != null and index($r2) != null and index($r3) != null))
+    and ((.autoMode.allow // []) | index($am) != null)' >/dev/null 2>&1; then
+  installed=1
+fi
+
+if [ "$check" = 1 ]; then
+  if [ "$installed" = 1 ]; then
+    echo "install-permission-rules: present in $target"
+    exit 0
+  fi
+  echo "install-permission-rules: absent from $target"
+  exit 4
+fi
+
+if [ "$installed" = 1 ]; then
+  echo "install-permission-rules: already installed in $target — no changes"
+  exit 0
+fi
+
+new=$(printf '%s' "$cur" | "$JQ" --arg r1 "$r1" --arg r2 "$r2" --arg r3 "$r3" --arg am "$am" '
+  .permissions.allow = ((.permissions.allow // []) + ([$r1, $r2, $r3] - (.permissions.allow // [])))
+  | .autoMode.allow =
+      (if (.autoMode.allow // []) == [] then ["$defaults", $am]
+       elif (.autoMode.allow | index($am)) == null then .autoMode.allow + [$am]
+       else .autoMode.allow end)')
+
+mkdir -p "$(dirname "$target")"
+# Backup only when there is a real prior file to protect, then land the new
+# content atomically (tmp+mv) so a crash can never leave a half-written file.
+if [ -f "$target" ]; then
+  bak="$target.bak.$(date +%s)"
+  cp "$target" "$bak"
+else
+  bak=""
+fi
+tmp="$target.tmp.$$"
+trap 'rm -f "$tmp"' EXIT
+printf '%s\n' "$new" > "$tmp"
+# Paranoid post-check: never install something jq cannot re-read.
+"$JQ" -e . "$tmp" >/dev/null 2>&1 || { echo "install-permission-rules: internal error — generated JSON invalid, aborting" >&2; exit 3; }
+mv "$tmp" "$target"
+
+if [ -n "$bak" ]; then
+  echo "install-permission-rules: installed into $target (backup: $bak)"
+else
+  echo "install-permission-rules: installed into $target (new file)"
+fi
diff --git a/tests/install-permission-rules.bats b/tests/install-permission-rules.bats
new file mode 100644
index 0000000..9e0c97f
--- /dev/null
+++ b/tests/install-permission-rules.bats
@@ -0,0 +1,126 @@
+#!/usr/bin/env bats
+# install-permission-rules.sh — consent-gated coordinator permission installer.
+#
+# The script merges the orchestrate coordinator's permission rules (three
+# path allows + one autoMode classifier rule) into a Claude Code settings.json.
+# It must be idempotent, refuse malformed targets, back up before writing, and
+# never touch the file in --check mode. HOME is overridden per test so the
+# generated rule strings are deterministic and the real user settings can
+# never be read or written by a test run.
+
+setup() {
+  IPR="${BATS_TEST_DIRNAME}/../skills/orchestrate/scripts/install-permission-rules.sh"
+  WORK="${BATS_TEST_TMPDIR}/work"
+  mkdir -p "$WORK"
+  TARGET="$WORK/settings.json"
+  FAKE_HOME="${BATS_TEST_TMPDIR}/home"
+  mkdir -p "$FAKE_HOME"
+}
+
+# helper: the launch-session path rule the script must generate for FAKE_HOME
+expected_rule1() {
+  printf 'Bash(sh %s/.claude/plugins/cache/*/dev-loop/*/skills/orchestrate/scripts/launch-session.sh *)' "$FAKE_HOME"
+}
+
+@test "fresh install: missing target file is created with all rules and valid JSON" {
+  run env HOME="$FAKE_HOME" sh "$IPR" "$TARGET"
+  [ "$status" -eq 0 ]
+  [ -f "$TARGET" ]
+  jq -e . "$TARGET" >/dev/null
+  # three path rules present, keyed on the real (fake) home dir
+  [ "$(jq -r '.permissions.allow | length' "$TARGET")" -eq 3 ]
+  jq -e --arg r "$(expected_rule1)" '.permissions.allow | index($r) != null' "$TARGET" >/dev/null
+  # autoMode gets $defaults first, then our context rule
+  [ "$(jq -r '.autoMode.allow[0]' "$TARGET")" = '$defaults' ]
+  jq -e '.autoMode.allow[1] | contains("bypassPermissions")' "$TARGET" >/dev/null
+  jq -e '.autoMode.allow[1] | contains("safe-cleanup.sh")' "$TARGET" >/dev/null
+}
+
+@test "idempotent: second run reports already installed, changes nothing, makes no backup" {
+  env HOME="$FAKE_HOME" sh "$IPR" "$TARGET"
+  before=$(cat "$TARGET")
+  run env HOME="$FAKE_HOME" sh "$IPR" "$TARGET"
+  [ "$status" -eq 0 ]
+  printf '%s' "$output" | grep -q "already installed"
+  [ "$(cat "$TARGET")" = "$before" ]
+  # a no-op run must not leave a backup
+  [ "$(find "$WORK" -name 'settings.json.bak.*' | wc -l | tr -d ' ')" -eq 0 ]
+}
+
+@test "merge: existing allow rules and settings keys are preserved, missing rules appended" {
+  printf '{"permissions":{"allow":["Bash(git:*)"],"defaultMode":"default"},"model":"opus"}' > "$TARGET"
+  run env HOME="$FAKE_HOME" sh "$IPR" "$TARGET"
+  [ "$status" -eq 0 ]
+  # pre-existing entries survive, in place
+  [ "$(jq -r '.permissions.allow[0]' "$TARGET")" = 'Bash(git:*)' ]
+  [ "$(jq -r '.permissions.defaultMode' "$TARGET")" = 'default' ]
+  [ "$(jq -r '.model' "$TARGET")" = 'opus' ]
+  [ "$(jq -r '.permissions.allow | length' "$TARGET")" -eq 4 ]
+}
+
+@test "merge: existing autoMode.allow gets our rule appended without injecting \$defaults" {
+  # a user who removed $defaults did so deliberately — the installer must not re-add it
+  printf '{"autoMode":{"allow":["my custom rule"]}}' > "$TARGET"
+  run env HOME="$FAKE_HOME" sh "$IPR" "$TARGET"
+  [ "$status" -eq 0 ]
+  [ "$(jq -r '.autoMode.allow | length' "$TARGET")" -eq 2 ]
+  [ "$(jq -r '.autoMode.allow[0]' "$TARGET")" = 'my custom rule' ]
+  run jq -e '.autoMode.allow | index("$defaults")' "$TARGET"
+  [ "$status" -ne 0 ]
+}
+
+@test "malformed target is refused untouched with exit 3 and no backup" {
+  printf '{ not json' > "$TARGET"
+  run env HOME="$FAKE_HOME" sh "$IPR" "$TARGET"
+  [ "$status" -eq 3 ]
+  printf '%s' "$output" | grep -qi "refuse"
+  [ "$(cat "$TARGET")" = '{ not json' ]
+  [ "$(find "$WORK" -name 'settings.json.bak.*' | wc -l | tr -d ' ')" -eq 0 ]
+}
+
+@test "backup: a modifying run leaves exactly one timestamped backup of the prior content" {
+  printf '{"permissions":{"allow":["Bash(git:*)"]}}' > "$TARGET"
+  run env HOME="$FAKE_HOME" sh "$IPR" "$TARGET"
+  [ "$status" -eq 0 ]
+  [ "$(find "$WORK" -name 'settings.json.bak.*' | wc -l | tr -d ' ')" -eq 1 ]
+  bak=$(find "$WORK" -name 'settings.json.bak.*')
+  [ "$(cat "$bak")" = '{"permissions":{"allow":["Bash(git:*)"]}}' ]
+}
+
+@test "--check: reports absent (4) without creating or writing anything" {
+  run env HOME="$FAKE_HOME" sh "$IPR" --check "$TARGET"
+  [ "$status" -eq 4 ]
+  [ ! -e "$TARGET" ]
+}
+
+@test "--check: reports present (0) after an install, file untouched" {
+  env HOME="$FAKE_HOME" sh "$IPR" "$TARGET"
+  before=$(cat "$TARGET")
+  run env HOME="$FAKE_HOME" sh "$IPR" --check "$TARGET"
+  [ "$status" -eq 0 ]
+  [ "$(cat "$TARGET")" = "$before" ]
+}
+
+@test "--check on a malformed target is absent-with-refusal (3), never a crash" {
+  printf 'nope' > "$TARGET"
+  run env HOME="$FAKE_HOME" sh "$IPR" --check "$TARGET"
+  [ "$status" -eq 3 ]
+}
+
+@test "missing jq exits 127 (boundary)" {
+  run env HOME="$FAKE_HOME" PATH="/nonexistent" sh "$IPR" "$TARGET"
+  [ "$status" -eq 127 ]
+}
+
+@test "default target: no argument installs into \$HOME/.claude/settings.json" {
+  run env HOME="$FAKE_HOME" sh "$IPR"
+  [ "$status" -eq 0 ]
+  [ -f "$FAKE_HOME/.claude/settings.json" ]
+  [ "$(jq -r '.permissions.allow | length' "$FAKE_HOME/.claude/settings.json")" -eq 3 ]
+}
+
+@test "usage: an unknown flag is rejected with exit 1" {
+  run env HOME="$FAKE_HOME" sh "$IPR" --frobnicate "$TARGET"
+  [ "$status" -eq 1 ]
+  printf '%s' "$output" | grep -q "usage"
+}