diff --git a/skills/continuous-learning-v2/agents/observer-loop.sh b/skills/continuous-learning-v2/agents/observer-loop.sh
index f4aca82b..a0f655dd 100755
--- a/skills/continuous-learning-v2/agents/observer-loop.sh
+++ b/skills/continuous-learning-v2/agents/observer-loop.sh
@@ -91,7 +91,8 @@ PROMPT
     max_turns=10
   fi
 
-  claude --model haiku --max-turns "$max_turns" --print < "$prompt_file" >> "$LOG_FILE" 2>&1 &
+  # Prevent observe.sh from recording this automated Haiku session as observations
+  ECC_SKIP_OBSERVE=1 ECC_HOOK_PROFILE=minimal claude --model haiku --max-turns "$max_turns" --print < "$prompt_file" >> "$LOG_FILE" 2>&1 &
   claude_pid=$!
 
   (
diff --git a/skills/continuous-learning-v2/hooks/observe.sh b/skills/continuous-learning-v2/hooks/observe.sh
index 33ec6f04..90a4a557 100755
--- a/skills/continuous-learning-v2/hooks/observe.sh
+++ b/skills/continuous-learning-v2/hooks/observe.sh
@@ -98,6 +98,54 @@ if [ -f "$CONFIG_DIR/disabled" ]; then
   exit 0
 fi
 
+# ─────────────────────────────────────────────
+# Automated session guards
+# Prevents observe.sh from firing on non-human sessions to avoid:
+#   - ECC observing its own Haiku observer sessions (self-loop)
+#   - ECC observing other tools' automated sessions (e.g. claude-mem)
+#   - All-night Haiku usage with no human activity
+# ─────────────────────────────────────────────
+
+# Env-var checks first (cheapest — no subprocess spawning):
+
+# Layer 1: CLAUDE_CODE_ENTRYPOINT — set by Claude Code itself to indicate how
+# it was invoked. Only interactive terminal sessions should continue; treat any
+# explicit non-cli entrypoint as automated so future entrypoint types fail closed
+# without requiring updates here.
+case "${CLAUDE_CODE_ENTRYPOINT:-cli}" in
+  cli) ;;
+  *) exit 0 ;;
+esac
+
+# Layer 2: Respect ECC_HOOK_PROFILE=minimal — suppresses non-essential hooks
+[ "${ECC_HOOK_PROFILE:-standard}" = "minimal" ] && exit 0
+
+# Layer 3: Cooperative skip env var — tools like claude-mem can set this
+# (export ECC_SKIP_OBSERVE=1) before spawning their automated sessions
+[ "${ECC_SKIP_OBSERVE:-0}" = "1" ] && exit 0
+
+# Layer 4: Skip subagent sessions — agent_id is only present when a hook fires
+# inside a subagent (automated by definition, never a human interactive session).
+# Placed after env-var checks to avoid a Python subprocess on sessions that
+# already exit via Layers 1-3.
+_ECC_AGENT_ID=$(echo "$INPUT_JSON" | "$PYTHON_CMD" -c "import json,sys; print(json.load(sys.stdin).get('agent_id',''))" 2>/dev/null || true)
+[ -n "$_ECC_AGENT_ID" ] && exit 0
+
+# Layer 5: CWD path exclusions — skip known observer-session directories.
+# Add custom paths via ECC_OBSERVE_SKIP_PATHS (comma-separated substrings).
+# Whitespace is trimmed from each pattern; empty patterns are skipped to
+# prevent an empty-string glob from matching every path.
+_ECC_SKIP_PATHS="${ECC_OBSERVE_SKIP_PATHS:-observer-sessions,.claude-mem}"
+if [ -n "$STDIN_CWD" ]; then
+  IFS=',' read -ra _ECC_SKIP_ARRAY <<< "$_ECC_SKIP_PATHS"
+  for _pattern in "${_ECC_SKIP_ARRAY[@]}"; do
+    _pattern="${_pattern#"${_pattern%%[![:space:]]*}"}"   # trim leading whitespace
+    _pattern="${_pattern%"${_pattern##*[![:space:]]}"}"   # trim trailing whitespace
+    [ -z "$_pattern" ] && continue
+    case "$STDIN_CWD" in *"$_pattern"*) exit 0 ;; esac
+  done
+fi
+
 # Auto-purge observation files older than 30 days (runs once per session)
 PURGE_MARKER="${PROJECT_DIR}/.last-purge"
 if [ ! -f "$PURGE_MARKER" ] || [ "$(find "$PURGE_MARKER" -mtime +1 2>/dev/null)" ]; then