fix(litellm): Remove duplicate 'host healthy' from busy line

The busy line was rendering as:
  'busy (completion timed out after retry; host healthy host healthy (200))'

because host_detail already contains 'host healthy (200)' and the prefix
also said 'host healthy'. Fixed to:
  'busy (completion timed out after retry; host healthy (200))'

F1 cosmetic fix from PR #123 verify.

agent-health-check.prose.md

@@ -59,6 +59,37 @@ rules: any HTTP status = ALIVE; only 000/timeout/refused = probe-failed.
 "Agent health check: OK". If `degraded` or `critical`, report the specific
 failures and their severity.
 
+**Mandatory report legs** (2026-09-17 decision, 1295.msg): Every report line
+MUST include one clause per check leg, in every state: healthy, degraded/warn,
+skipped, or failed. A missing leg must never look the same as a healthy leg.
+Required legs and their templates in every state:
+
+- `LiteLLM keys: 4/4 (tanko, abiba, koby, koonimo) valid`
+  - degraded: `LiteLLM keys: 2/4 (tanko valid; koby invalid; koonimo valid; abiba probe-failed: 192.168.68.116:4000 timeout)`
+  - skipped: `LiteLLM keys: SKIPPED (LiteLLM router unreachable)`
+- `GPU ports: 3/3 (rtx3090, rtx5070, strixhalo) healthy`
+  - skipped: `GPU ports: SKIPPED (no SSH access to GPU hosts)`
+  - degraded/warn: `GPU ports: 2/3 (rtx3090 healthy; rtx5070 degraded: svc=inactive, port owned by 1234; strixhalo healthy)`
+  - failed: `GPU ports: 2/3 (rtx3090 healthy; rtx5070 probe-failed: 192.168.68.110:9400 timeout; strixhalo healthy)`
+  - The GPU leg has six non-healthy states the code can produce:
+    (i) `gpu-unreachable:{host}` — SSH probe failed;
+    (ii) `gpu-no-port:{label}` — SSH worked, port not listening;
+    (iii) `gpu-ghost:{label}:{pid}` — unit inactive, port owned by another pid;
+    (iv) unit not active, MainPID empty or port owned by MainPID — svc inactive;
+    (v) unit active, /health body contains "error" — error response;
+    (vi) unit active, /health body unrecognised — unknown health.
+    In every case the failing host and reason must be named.
+- `CTs: 4/4 running (tanko, abiba, koby, koonimo)`
+  - degraded: `CTs: 3/4 (tanko running; abiba running; koby probe-failed: ssh root@192.168.68.129 timeout; koonimo running)`
+  - skipped: `CTs: SKIPPED (SSH access unavailable)`
+- `Vault secrets: 3/3 present`
+  - degraded: `Vault secrets: 2/3 (tanko present; koby present; koonimo missing)`
+  - skipped: `Vault secrets: SKIPPED (vault not configured)`
+
+The compact form in the summary line is acceptable (e.g. `rtx5070 timeout`) as
+long as the host is identifiable from context; the full `probe-failed: <target>
+<kind>` form is required when a leg reports a failure in the detail section.
+
 ### Probe Shape (per standing rules from 1150.msg)
 
 1. **Any HTTP status means ALIVE.** 200, 301, 302, 401, 403, 404 all prove the

audit-hermes-config.py

@@ -262,6 +262,44 @@ def audit(path):
                 f"{field_path} = {value!r} is a raw-but-live model name — prefer the stable alias {raw_but_live[value]}",
             )
 
+    # --- MCP Server Checks (Rule 15) ---
+    # Valid MCP server endpoints
+    VALID_MCP_ENDPOINTS = {
+        'ra-h-os': 'http://192.168.68.65:3100/mcp',
+        'litellm': 'https://litellm.sysloggh.net/mcp',
+    }
+    
+    # Check MCP servers if they exist
+    mcp_servers = cfg.get('mcp_servers', {})
+    if mcp_servers:
+        for server_name, server_config in mcp_servers.items():
+            url = server_config.get('url', '')
+            
+            # Check endpoint validity
+            if server_name in VALID_MCP_ENDPOINTS:
+                expected = VALID_MCP_ENDPOINTS[server_name]
+                if url == expected:
+                    check(True, 'Rule 15', f'MCP server "{server_name}" URL is correct: {url}')
+                else:
+                    check(False, 'Rule 15', f'MCP server "{server_name}" URL is incorrect: {url} (expected: {expected})')
+            else:
+                warn('Rule 15', f'MCP server "{server_name}" URL may need validation (not in known list): {url}')
+            
+            # Check for proper authentication
+            headers = server_config.get('headers', {})
+            has_auth = False
+            for key, value in headers.items():
+                if 'key' in key.lower() or 'auth' in key.lower():
+                    has_auth = True
+                    # Check if the value looks like a literal key vs env-var reference
+                    if value.startswith('Bearer ') and value[7:].startswith('sk-'):
+                        check(True, 'Rule 15', f'MCP server "{server_name}" has valid auth header: {key}')
+                    else:
+                        warn('Rule 15', f'MCP server "{server_name}" header may use env-var instead of literal key: {key} = {value}')
+                    break
+            if not has_auth:
+                warn('Rule 15', f'MCP server "{server_name}" has no authentication header')
+
     # --- Report ---
     print(f"{'=' * 60}")
     print(f"Hermes Config Audit: {path}")

disk-gc-threat-response.prose.md

@@ -61,7 +61,7 @@ Host filesystems have their own risk profile and their own bands. A host root ne
 |-------|-----------|----------|------------|
 | **HOST-WARN** | 85% | Name the volume + % + absolute free space in the scan output | None |
 | **HOST-AMBER** | 90% | Name the volume + % + absolute free space; flag for owner attention | Zulip DM to owner (state-change only) |
-| **HOST-RED** | 95% | Name the volume + % + absolute free space; flag for immediate owner attention | Zulip DM + channel alert (state-change only) |
+| **HOST-RED** | 95% | Name the volume + % + absolute free space; **media volumes: "capacity decision — owner to decide"; pbs-datastore/host-root: "immediate owner attention"** | Zulip DM + channel alert (state-change only) |
 
 **Escalations are STATE-CHANGE driven, not per-run.** A volume alerts ONCE when it enters a higher band (GREEN->WARN, WARN->AMBER, AMBER->RED) and ONCE when it drops back down (a recovery notice). While a volume stays in the same band, it is reported in the scan output only — no DM, no channel alert. This prevents the same 96% easystore2 from re-DMing the owner on every 6-hour scan and drowning a real warning in noise.
 
@@ -228,6 +228,21 @@ call summary-reporter
   plan: plan
 ```
 
+## GC SCHEDULE (PBS datastore only)
+
+The PBS GC schedule is defined in ONE authoritative place: `/etc/cron.d/pbs-gc` on storepve.
+The schedule is `0 20 * * *` (20:00 LOCAL = 00:00 UTC, since host timezone is America/New_York).
+This applies **only** to the PBS datastore (`/tank/pbs-backup`), NOT to media volumes.
+Media volumes (/media/*) are report-only at all threat levels.
+
+The cron runs `/usr/local/bin/pbs-gc.sh` which executes:
+```bash
+proxmox-backup-manager garbage-collection start storepve-datastore
+```
+This is NOT a `prune` operation; it is a GC pass that reclaims unreferenced chunks.
+There is no `--keep-daily` flag; retention is governed by jobs.cfg (keep-daily=35).
+The GC does not touch media volumes or any other filesystem.
+
 ## GC Strategies by Host Type
 
 ### Docker Hosts (kagentz 105, syslog-api 116, docker-vm 109, amdpve .15)

hermes-config-template.prose.md

@@ -5,7 +5,8 @@ description: >
   Standard Hermes configuration template for Syslog Solution LLC agents.
   Enforces shared infrastructure setup (Firecrawl, SearXNG, local models,
   RA-H OS MCP) while keeping agent-specific API keys and model choices.
-  UPDATED 2026-08-07: Added Rule 15 (MCP Validation) from the 2026-08-07 keyless-MCP incident.
+  UPDATED 2026-08-07: Added litellm MCP server entry; updated Rule 15 (MCP Validation)
+  to enforce REAL key headers (not env-vars) from the 2026-08-07 keyless-MCP incident.
   Added Rule 12 (Context-Issue Diagnostic) + Rule 13 (.env fallback enforcement) from the
   2026-07-16 Mumuni root-cause investigation (WAL #1300).
   UPDATED 2026-07-12: GPU workload redistributed. Compression → Strix Halo. RTX 3090 context verified at 128K. Infisical .env fallback required (Rule 3/13).
@@ -145,6 +146,12 @@ mcp_servers:
     url: http://192.168.68.65:3100/mcp
     timeout: 120
     connect_timeout: 60
+  litellm:
+    url: https://litellm.sysloggh.net/mcp
+    headers:
+      x-litellm-api-key: "Bearer <AGENT_KEY>"   # Rule 15: must be a REAL key (sk-...), not an env-var name
+    # Note: MCP endpoint requires Accept: application/json, text/event-stream header
+    # This is handled by the MCP client library; don't add to config
 
 # ─── Compression ───
 compression:
@@ -217,6 +224,40 @@ When LiteLLM keys are regenerated (e.g., after infrastructure changes):
 3. **After update**: Restart Hermes on the agent host
 4. **Verify**: `curl -H "Authorization: Bearer sk-<KEY>" http://192.168.68.116/v1/models`
 
+## MCP Server Configuration
+
+MCP server entries in `mcp_servers:` must follow the format shown in the Template section.
+
+**Header requirements (Rule 15):**
+- Use `headers:` field with a `x-litellm-api-key` entry
+- The value must be `"Bearer <REAL_KEY>"` where `<REAL_KEY>` is a literal LiteLLM virtual key
+- Do NOT use env-var references like `$LITELLM_API_KEY` — they resolve to empty strings in
+  the static config and cause "Malformed API Key" errors (2026-08-07 Tanko incident)
+
+**Key source:**
+- Keys are stored in the Infisical vault (project=agents, env=production)
+- For template-based config generation: substitute the agent's key from the agent_keys table
+- For manual config updates: retrieve the key from the vault and insert the literal value
+
+**Verification (2026-08-07):**
+- Tested MCP initialize handshake against litellm.sysloggh.net/mcp with agent virtual key
+- Confirmed: 200 response with `serverInfo.name: "litellm-mcp-server"`
+- Confirmed: tools/list returns 200 (MCP endpoint accessible with virtual keys)
+- Note: Per-key MCP grants are now supported (verified 2026-09-18), resolving the earlier
+  contradiction with infrastructure-update.prose.md (which now reflects the update)
+- Key requirement: must be a valid LiteLLM virtual key (HTTP 200 on /v1/models)
+
+**Key rotation note:**
+- MCP headers use literal keys (not env-vars), so they do NOT auto-rotate with the vault
+- After key rotation, MCP server headers must be regenerated with the new key value
+- This is a manual step: update the `x-litellm-api-key` header in each config file
+- TODO: Consider adding MCP header regeneration to the Key Update Procedure or a generation hook
+
+**NetBird dependency:**
+- `litellm.sysloggh.net` is a NetBird endpoint (see Rule 5 and Infrastructure Stack table)
+- NetBird outages cause 502 errors on MCP requests, not auth failures
+- Diagnose: if MCP requests fail with 502, check NetBird status before investigating keys
+
 ## Violation Classification
 
 When reporting findings, separate POLICY observations from FAULT findings:
@@ -455,14 +496,28 @@ curl -s -o /dev/null -w '%{http_code}' -H "Authorization: Bearer $K" http://192.
 - **Audit script**: Run `python3 /root/prose-contracts/audit-hermes-config.py <config.yaml>`
   before and after any config change to catch this and all other rule violations.
 
-### Rule 15: MCP Endpoint and Header Validation (ADDED 2026-08-07)
-- Every MCP server entry must point at the correct endpoint:
-  - ra-h-os = http://192.168.68.65:3100/mcp
-  - litellm = https://litellm.sysloggh.net/mcp
-- MCP entries must carry a REAL key value in the header.
-  - Avoid using env-var names like LITELLM_API_KEY in the header; they do not resolve for MCP
-    endpoints and result in "Malformed API Key" floods.
-  - Ensure the header value is the actual key (e.g., `sk-...`).
+### Rule 15: MCP Endpoint and Header Validation (UPDATED 2026-08-07)
+
+**Endpoint validation:**
+- ra-h-os must point to `http://192.168.68.65:3100/mcp`
+- litellm must point to `https://litellm.sysloggh.net/mcp`
+- Mismatched endpoints cause silent failures (e.g., 2026-08-07 incident: Tanko's config had
+  ra-h-os pointing to litellm's endpoint)
+
+**Header validation:**
+- Every MCP entry with authentication must carry a `headers:` field
+- The header value must be a REAL key (e.g., `Bearer sk-abc123...`), NOT an env-var name
+- Env-var names like `LITELLM_API_KEY` do NOT resolve in static MCP configs and cause
+  "Malformed API Key" floods (401 errors in agent gateway logs)
+- Verify: header value should match a valid LiteLLM key (test with `curl` against /v1/models)
+- Verify MCP access: test the MCP initialize handshake against the MCP endpoint (not just /v1/models)
+  ```bash
+  curl -s -X POST -H "x-litellm-api-key: Bearer <KEY>" -H "Accept: application/json, text/event-stream" \
+    https://litellm.sysloggh.net/mcp -d '{"jsonrpc":"2.0","id":1,"method":"initialize",...}' \
+    | jq '.data.result.serverInfo'  # should show serverInfo.name and version
+  ```
+
+**See:** § MCP Server Configuration for implementation details and key source.
 
 ## Execution
 

infrastructure-monitoring.prose.md

@@ -138,11 +138,19 @@ the any-HTTP rule. On those — the authenticated Zulip POST and the router
 **RUN LIVE, NEVER ECHO — every dispatch must execute the probes below with real
 tool calls; never repeat a prior report unless a live probe fails.**
 
+**EXECUTABLE OWNER:** The canonical probe set lives in `scripts/infra-monitoring.sh`.
+A check run is a single command: `bash scripts/infra-monitoring.sh` (from the
+repository root). Paste its raw output verbatim into the report. The script
+exits non-zero naming every failed target; there is no "OK" summary when any
+leg failed. Port drift is caught by `scripts/test_infra_monitoring.sh` which
+asserts every probed port matches the documented value.
+
 **PROBE SHAPE (per standing rules above):**
-- Every probe prints the target name + URL + HTTP code (or failure kind)
-- Retry once on connection failure at longer timeout
+- Every probe prints: `✅ <name>: alive` on success, or `🔴 <name>: probe-failed: <host>:<port> (expected <pattern>) (<kind>)` on failure
+- PVE API failures include `(any-HTTP liveness, -k for self-signed)` to distinguish TLS vs connection
+- Retry once on connection failure at longer timeout (25s connect, 30s max)
 - Any HTTP status = ALIVE; only 000/timeout/refused = probe-failed
-- Report the actual probe command and its result, not a summary verdict
+- Report the actual probe output, not a summary verdict
 
 ```bash
 # Provenance — run first; paste the absolute path into the report
@@ -269,6 +277,27 @@ code (or failure kind with retry details). Apply the standing probe rules: any
 HTTP status = ALIVE; only 000/timeout/refused = probe-failed. A redirect is not
 a failure.
 
+### Docker Stats and PVE Exporter Ports
+
+These two exporters bind to 127.0.0.1 on CT 116 (localhost-only) and must be probed via SSH:
+
+| Exporter | Port | Container | Metrics |
+|----------|------|-----------|---------|
+| **Docker Stats** | **9324** | harness-docker-stats | `docker_container_*` (per-container CPU/mem/network) |
+| **PVE Exporter** | **9221** | harness-pve-exporter | `pve_*` (5 cluster-level metrics) |
+
+**IMPORTANT**: Do not confuse with port 9323, which is owned by dockerd and serves the Docker Engine's own metrics (`builder_builds_*`, `containerd_build_info_*`).
+
+```bash
+# Docker Stats (harness-docker-stats)
+ssh root@192.168.68.116 "curl -s -o /dev/null -w '%{http_code}' --connect-timeout 10 http://127.0.0.1:9324/metrics"
+# Expected: 200 or 404 (any HTTP status = ALIVE)
+
+# PVE Exporter (harness-pve-exporter)
+ssh root@192.168.68.116 "curl -s -o /dev/null -w '%{http_code}' --connect-timeout 10 http://127.0.0.1:9221/metrics"
+# Expected: 200 or 404 (any HTTP status = ALIVE)
+```
+
 ### Phase 1: GPU Exporters
 
 **NVIDIA (.8 and .110)**:

infrastructure-update.prose.md

@@ -208,19 +208,19 @@ mcp_servers:
 | Key | MCP Access |
 |-----|-----------|
 | Master key | ✅ Full — 90 tools (vault-injected) |
-| Agent keys (mumuni, tanko, etc.) | ❌ Per-key grants not supported in v1.99.1 |
+| Agent keys (mumuni, tanko, etc.) | ✅ Per-key grants supported (as of 2026-09-18 verification) |
 
 ### Known Limitations
-- Per-key MCP server grants not functional — only master key has access
+- ~~Per-key MCP server grants not functional — only master key has access~~ (resolved 2026-09-18: per-key grants now work)
 - Responses API (`/v1/responses`) with MCP tools broken on llama.cpp backends
 - HTTP 307 redirect on `/mcp` → use `/mcp/` (trailing slash) or `/mcp-rest/` endpoints
 - `api_mode: responses` in Hermes appends `/v1/responses` to base_url → **base_url must end at `/v1`, never `/responses`** (double-path bug)
 
-### Migration Path
-When LiteLLM is upgraded to a version supporting per-key MCP grants:
-1. Grant agent keys `mcp_servers: ["ra_h_os"]`
-2. Update Hermes `mcp_servers.ra-h-os.url` from `http://192.168.68.65:3100/mcp` → `http://192.168.68.116:4000/mcp/`
-3. Add `headers: {x-litellm-api-key: "Bearer $LITELLM_API_KEY"}` to MCP config
+### Migration Path (COMPLETED 2026-09-18)
+Per-key MCP grants are now supported:
+1. ✅ Agent keys granted MCP access via `allowed_mcp_servers` field
+2. ✅ Hermes `mcp_servers.litellm.url` set to `https://litellm.sysloggh.net/mcp`
+3. ✅ `headers: {x-litellm-api-key: "Bearer <literal_key>"}` added to MCP config
 
 ## Security-Specific Updates
 

proxmox-monitor.prose.md

@@ -89,6 +89,48 @@ agent: abiba
 | minipve | 192.168.68.12 | PVE |
 | amdpve | 192.168.68.15 | PVE + Strix Halo LLM (strix-moe) |
 
+## PBS GC (Proxmox Backup Server)
+
+### Schedule
+Cron `0 20 * * *` on the **storepve HOST** (192.168.68.6) = 20:00 America/New_York local = **00:00 UTC**.
+
+**NOTE**: The closed PR #116 said "20:00 UTC" — this is WRONG by four hours. Do not copy it.
+
+### What Actually Runs
+Host script `/usr/local/bin/pbs-gc.sh` runs `pct exec 107 -- proxmox-backup-manager garbage-collection start storepve-datastore`.
+
+**IMPORTANT**: The tool `proxmox-backup-manager` exists only inside CT 107 (where the PBS server runs). The storepve host has only `proxmox-backup-client`. This is why the job had never worked before 2026-09-19 00:00 UTC.
+
+### Datastore Location
+- **Datastore**: CT 107's `/mnt/pbs-backup` on the storepve ZFS dataset `/tank/pbs-backup` (pool `tank`, ~11T free)
+- **NOT** `/media/easystore2` (media library, 3.7T, 96% used — separate volume)
+
+### Liveness Check
+The new `proxmox-monitor.sh` leg checks storepve-datastore GC health:
+- Reads GC state from CT 107: `pct exec 107 -- proxmox-backup-manager garbage-collection list --output-format json`
+- **FAILS** if `last-run-endtime` is older than 48 hours
+- Reports age in hours and pending-bytes
+
+**All six verdict shapes** (exactly as emitted by the script):
+
+1. **Healthy** (fresh GC, 0 B pending):
+   `✅ PBS GC: healthy (last run 1h ago, pending-bytes: 0 B)`
+
+2. **Stale** (GC ran >48h ago):
+   `🔴 PBS GC: stale (last run 49h ago, pending-bytes: 1048576 B)`
+
+3. **Probe-failed: empty read** (000/timeout/unreadable):
+   `🔴 PBS GC: probe-failed: storepve:192.168.68.6 (expected JSON, got 000)`
+
+4. **Probe-failed: unparseable** (non-empty but invalid JSON — the "command not found" case):
+   `🔴 PBS GC: probe-failed: storepve:192.168.68.6 (unparseable JSON)`
+
+5. **Never-run: datastore absent** (valid JSON but storepve-datastore not in list):
+   `🔴 PBS GC: never-run (storepve-datastore not found in GC list)`
+
+6. **Never-run: no endtime** (valid JSON with datastore present but last-run-endtime is null/0):
+   `🔴 PBS GC: never-run (storepve-datastore has no last-run-endtime)`
+
 ## Operations
 
 ### view-dashboards

scripts/infra-monitoring.sh

@@ -0,0 +1,234 @@
+#!/bin/bash
+# infrastructure-monitoring.sh — Homelab Infrastructure Monitor
+# Implements infrastructure-monitoring.prose.md (check-health section)
+#
+# Legs: Grafana, Prometheus, LiteLLM, PVE API (5 nodes), GPU exporters,
+#       Docker Stats, PVE Exporter
+#
+# Design:
+# - Every target, port, path, and expected status is defined in code
+# - Liveness rule: any HTTP status = ALIVE for auth-gated/redirect endpoints;
+#   only connection failures (000/timeout) = probe-failed
+# - Bare-200 rule: expected status must match exactly (200); anything else = alert
+# - PVE API uses -k flag (self-signed certs), probes /api2/json/version
+# - Docker Stats and PVE Exporter bind to 127.0.0.1 on CT 116, probed via SSH
+#   with one retry at longer timeout (25s connect, 30s max) to distinguish
+#   transient timeout from host-down
+# - Non-zero exit naming every failed target; no "OK" summary when any leg failed
+#
+# Output shape per leg:
+#   ✅ <name>: alive
+#   🔴 <name>: probe-failed: <host>:<port> (expected <pattern>) (<kind>)
+#
+# Failure kinds: timeout | refused | tls | unexpected:<code> (printed in the failure line)
+
+set -uo pipefail
+
+# ── Configuration (documented in infrastructure-monitoring.prose.md) ────────
+# Change these in ONE place; test_infra_monitoring.sh asserts against these.
+
+GRAFANA_HOST="192.168.68.116"
+GRAFANA_PORT="3001"
+GRAFANA_PATH="/api/health"
+# Grafana is bare-200: 302 is a redirect that may not follow, so 200 only
+GRAFANA_EXPECTED="200"
+
+PROMETHEUS_HOST="192.168.68.116"
+PROMETHEUS_PORT="9090"
+PROMETHEUS_PATH="/-/healthy"
+PROMETHEUS_EXPECTED="200"
+
+# LiteLLM is probed via nginx on port 80 (same as the contract)
+LITELLM_HOST="192.168.68.116"
+LITELLM_PORT="80"
+LITELLM_PATH="/litellm/health"
+# LiteLLM is auth-gated: any HTTP status = ALIVE (301 redirect is alive)
+LITELLM_LIVENESS="1"
+
+# PVE API: probe REAL PVE nodes, never the monitoring host CT 116
+PVE_NODES=("192.168.68.9" "192.168.68.12" "192.168.68.6" "192.168.68.15" "192.168.68.5")
+PVE_API_PORT="8006"
+PVE_API_PATH="/api2/json/version"
+# PVE API is auth-gated: 401 = alive; any HTTP status = alive
+PVE_API_LIVENESS="1"
+PVE_API_USE_K="1"  # self-signed certs
+
+# GPU exporters (Prometheus scrape target)
+GPU_HOSTS=("192.168.68.8" "192.168.68.110" "192.168.68.15")
+GPU_PORT="9400"
+GPU_PATH="/metrics"
+GPU_EXPECTED="200"
+
+# Docker Stats and PVE Exporter bind to 127.0.0.1 on CT 116
+DOCKER_STATS_PORT="9324"  # harness-docker-stats (docker_container_* metrics)
+PVE_EXPORTER_PORT="9221"  # harness-pve-exporter (5 pve_* metrics)
+CT116_SSH_HOST="192.168.68.116"
+# Both are bare-200: 404 = container not yet started
+DOCKER_STATS_EXPECTED="200|404"
+PVE_EXPORTER_EXPECTED="200|404"
+
+# ── Probe Functions ─────────────────────────────────────────────────────────
+
+# probe_http <host> <port> <path> <expected_pattern> [use_k] [ssh_host] [scheme] [liveness]
+# Returns 0 if probe succeeds (matches expected or liveness), 1 if probe-failed.
+# Prints the result line.
+#
+# FIX C1: The kind value is computed and printed in the failure line.
+# FIX C2: SSH retry logic is in the first attempt branch (not unreachable).
+
+LAST_KIND=""
+probe_http() {
+    local host="$1" port="$2" path="$3" expected="$4"
+    local use_k="${5:-}" ssh_host="${6:-}" scheme="${7:-http}" liveness="${8:-0}"
+    local url="${scheme}://${host}:${port}${path}"
+    local code="" kind=""
+    LAST_KIND=""
+
+    # Single invocation that captures both output and status
+    if [ -n "$ssh_host" ]; then
+        out=$(ssh -o ConnectTimeout=5 -o BatchMode=yes "root@${ssh_host}" \
+            "curl -s -o /dev/null -w '%{http_code}' --connect-timeout 10 --max-time 15 ${use_k:+-k} ${url}" 2>/dev/null)
+        rc=$?
+    else
+        out=$(curl -s -o /dev/null -w '%{http_code}' --connect-timeout 10 --max-time 15 ${use_k:+-k} "$url" 2>/dev/null)
+        rc=$?
+    fi
+    code=$(printf '%s' "$out" | tr -d '[:space:]')
+
+    # Classify failure kind and retry if needed
+    if [ -z "$code" ] || [ "$code" = "000" ]; then
+        # Distinguish timeout from TLS error from refused
+        case "$rc" in
+            35|51|58|59|60|77|83) kind="tls" ;;
+            *) kind="timeout" ;;
+        esac
+        # Retry once at longer timeout (25s connect, 30s max)
+        if [ -n "$ssh_host" ]; then
+            code=$(ssh -o ConnectTimeout=5 -o BatchMode=yes "root@${ssh_host}" \
+                "curl -s -o /dev/null -w '%{http_code}' --connect-timeout 25 --max-time 30 ${use_k:+-k} ${url}" 2>/dev/null)
+            rc=$?
+            code=$(printf '%s' "$code" | tr -d '[:space:]')
+        else
+            code=$(curl -s -o /dev/null -w '%{http_code}' --connect-timeout 25 --max-time 30 ${use_k:+-k} "$url" 2>/dev/null)
+            rc=$?
+            code=$(printf '%s' "$code" | tr -d '[:space:]')
+            # On retry, classify: still 000 = keep existing kind (or timeout if empty), unexpected status = refused
+            if [ -z "$code" ] || [ "$code" = "000" ]; then
+                [ -z "$kind" ] && kind="timeout"
+            elif ! echo "$code" | grep -qE "^(${expected})$"; then
+                kind="refused"
+            fi
+        fi
+    fi
+
+    # Check result
+    if [ -n "$code" ] && [ "$code" != "000" ]; then
+        if [ "$liveness" = "1" ]; then
+            # Any HTTP status = ALIVE for auth-gated/redirect endpoints
+            return 0
+        else
+            # Bare-200 or specific expected pattern
+            if echo "$code" | grep -qE "^(${expected})$"; then
+                return 0
+            else
+                kind="unexpected:$code"
+                LAST_KIND="$kind"
+                return 1
+            fi
+        fi
+    else
+        [ -z "$kind" ] && kind="refused"
+        LAST_KIND="$kind"
+        return 1
+    fi
+}
+
+# ── Main ────────────────────────────────────────────────────────────────────
+
+FAILED=()
+FAILED_KIND=()
+TIMESTAMP=$(date -u '+%Y-%m-%d %H:%M UTC')
+echo "=== Infrastructure Monitoring — $TIMESTAMP ==="
+echo "Executed from: $(pwd -P)"
+echo ""
+
+# 1. Grafana (CT 116 :3001 /api/health) — bare-200
+if probe_http "$GRAFANA_HOST" "$GRAFANA_PORT" "$GRAFANA_PATH" "$GRAFANA_EXPECTED"; then
+    echo "  ✅ Grafana: alive"
+else
+    echo "  🔴 Grafana: probe-failed: ${GRAFANA_HOST}:${GRAFANA_PORT} (expected ${GRAFANA_EXPECTED}) (<${LAST_KIND}>)"
+    FAILED+=("grafana")
+fi
+
+# 2. Prometheus (CT 116 :9090 /-/healthy) — bare-200
+if probe_http "$PROMETHEUS_HOST" "$PROMETHEUS_PORT" "$PROMETHEUS_PATH" "$PROMETHEUS_EXPECTED"; then
+    echo "  ✅ Prometheus: alive"
+else
+    echo "  🔴 Prometheus: probe-failed: ${PROMETHEUS_HOST}:${PROMETHEUS_PORT} (expected ${PROMETHEUS_EXPECTED}) (<${LAST_KIND}>)"
+    FAILED+=("prometheus")
+fi
+
+# 3. LiteLLM (CT 116 :80/litellm/health via nginx) — liveness (any HTTP = alive)
+if probe_http "$LITELLM_HOST" "$LITELLM_PORT" "$LITELLM_PATH" "" "" "" "http" "$LITELLM_LIVENESS"; then
+    echo "  ✅ LiteLLM: alive"
+else
+    echo "  🔴 LiteLLM: probe-failed: ${LITELLM_HOST}:${LITELLM_PORT}${LITELLM_PATH} (any-HTTP liveness) (<${LAST_KIND}>)"
+    FAILED+=("litellm")
+fi
+
+# 4. PVE API (5 real nodes :8006 /api2/json/version, -k, liveness)
+PVE_FAILED=()
+for node in "${PVE_NODES[@]}"; do
+    if probe_http "$node" "$PVE_API_PORT" "$PVE_API_PATH" "" "$PVE_API_USE_K" "" "https" "$PVE_API_LIVENESS"; then
+        echo "  ✅ PVE API ${node}: alive"
+    else
+        echo "  🔴 PVE API ${node}: probe-failed: ${node}:${PVE_API_PORT} (any-HTTP liveness, -k for self-signed) (<${LAST_KIND}>)"
+        PVE_FAILED+=("$node")
+    fi
+done
+if [ ${#PVE_FAILED[@]} -gt 0 ]; then
+    FAILED+=("pve-api: ${PVE_FAILED[*]}")
+fi
+
+# 5. GPU exporters (:9400/metrics) — bare-200
+GPU_FAILED=()
+for host in "${GPU_HOSTS[@]}"; do
+    if probe_http "$host" "$GPU_PORT" "$GPU_PATH" "$GPU_EXPECTED"; then
+        echo "  ✅ GPU exporter ${host}: alive"
+    else
+        echo "  🔴 GPU exporter ${host}: probe-failed: ${host}:${GPU_PORT} (expected 200) (<${LAST_KIND}>)"
+        GPU_FAILED+=("$host")
+    fi
+done
+if [ ${#GPU_FAILED[@]} -gt 0 ]; then
+    FAILED+=("gpu-exporters: ${GPU_FAILED[*]}")
+fi
+
+# 6. Docker Stats (CT 116 :9324, 127.0.0.1 via SSH) — 200|404
+if probe_http "127.0.0.1" "$DOCKER_STATS_PORT" "/" "$DOCKER_STATS_EXPECTED" "" "$CT116_SSH_HOST"; then
+    echo "  ✅ Docker Stats: alive"
+else
+    echo "  🔴 Docker Stats: probe-failed: CT116:127.0.0.1:${DOCKER_STATS_PORT} (expected 200|404) (<${LAST_KIND}>)"
+    FAILED+=("docker-stats")
+fi
+
+# 7. PVE Exporter (CT 116 :9221, 127.0.0.1 via SSH) — 200|404
+if probe_http "127.0.0.1" "$PVE_EXPORTER_PORT" "/" "$PVE_EXPORTER_EXPECTED" "" "$CT116_SSH_HOST"; then
+    echo "  ✅ PVE Exporter: alive"
+else
+    echo "  🔴 PVE Exporter: probe-failed: CT116:127.0.0.1:${PVE_EXPORTER_PORT} (expected 200|404) (<${LAST_KIND}>)"
+    FAILED+=("pve-exporter")
+fi
+
+# ── Summary ─────────────────────────────────────────────────────────────────
+
+echo ""
+if [ ${#FAILED[@]} -eq 0 ]; then
+    echo "  ✅ All legs OK"
+    exit 0
+else
+    for f in "${FAILED[@]}"; do
+        echo "  🔴 FAILED: $f"
+    done
+    exit 1
+fi

scripts/litellm-health-check.py

@@ -55,9 +55,12 @@ def probe_http(url, method="GET", bearer_token=None, data=None, timeout=10, foll
     try:
         rc, stdout, stderr = run_command(cmd, timeout)
         if rc != 0:
-            # Determine failure kind from curl exit code
+            # Check if this is a timeout from run_command (rc=1, stderr="TIMEOUT")
+            if rc == 1 and stderr == "TIMEOUT":
+                return (000, "timeout after " + str(timeout) + "s")
+            # Otherwise, determine failure kind from curl exit code
             # curl exit codes: 28=timeout, 7=refused, 6=dns, 35=ssl, 52=empty
-            if rc == 28:
+            elif rc == 28:
                 return (000, "timeout after " + str(timeout) + "s")
             elif rc == 7:
                 return (000, "connection refused")
@@ -73,6 +76,20 @@ def probe_http(url, method="GET", bearer_token=None, data=None, timeout=10, foll
     except subprocess.TimeoutExpired:
         return (000, "timeout after " + str(timeout) + "s")
 
+def check_host_health(host_ip):
+    """Check if the GPU host's llama-chat-api health endpoint is reachable
+    
+    Returns: (healthy: bool, detail: str)
+    """
+    code, _ = probe_http("http://" + host_ip + ":8080/health", timeout=10)
+    if code == 200:
+        return True, "host healthy (200)"
+    elif code == 000:
+        return False, "host unreachable (timeout or refused)"
+    else:
+        return False, "host unhealthy (HTTP " + str(code) + ")"
+
+
 def get_response_body(url, method="POST", bearer_token=None, data=None, timeout=30):
     """Get response body for 401/403 credential faults (truncated to 200 chars)"""
     cmd = "curl -s -m " + str(timeout)
@@ -115,29 +132,53 @@ def check_model_probes():
     
     results = []
     
+    # Host health mapping: model -> host IP
+    model_hosts = {
+        "gpu-dense": "192.168.68.8",  # RTX 3090
+        "gpu-vision": "192.168.68.110",  # RTX 5070
+        "strix-moe": "192.168.68.15"  # Strix Halo
+    }
+    
     for model in ["gpu-dense", "gpu-vision", "strix-moe"]:
-        # Single-host aliases: 30s timeout each
-        # gpu-dense (RTX 3090) may need long warmup/prefill - timeout is acceptable on cold-start
+        host_ip = model_hosts[model]
+        # Single-host aliases: 30s initial timeout, retry once at 90s on failure
+        # Worst-case prefill ~76s, so 90s retry ensures we cover it
         code, failure_kind = probe_http("http://" + BACKEND_HOST + "/litellm/v1/chat/completions",
                                        method="POST",
                                        bearer_token=monitor_key,
                                        data='{"model":"' + model + '","messages":[{"role":"user","content":"health ' + str(random.randint(1000, 9999)) + '"}],"max_tokens":4}',
                                        timeout=30)
         
+        first_kind = None
         if code == 000 and failure_kind:
-            # Report probe failure with kind, do not assert a service verdict
-            results.append((model, False, "probe-failed: " + model + " " + failure_kind + " (30s timeout)"))
+            first_kind = failure_kind
+            time.sleep(1)
+            code, failure_kind = probe_http("http://" + BACKEND_HOST + "/litellm/v1/chat/completions",
+                                           method="POST",
+                                           bearer_token=monitor_key,
+                                           data='{"model":"' + model + '","messages":[{"role":"user","content":"health ' + str(random.randint(1000, 9999)) + '"}],"max_tokens":4}',
+                                           timeout=90)
+        
+        if code == 000 and failure_kind:
+            # Both attempts failed - check host health to distinguish busy from down
+            host_healthy, host_detail = check_host_health(host_ip)
+            if host_healthy:
+                results.append((model, False, "busy (completion timed out after retry; " + host_detail + ")"))
+            else:
+                # Host unreachable - report both kinds
+                if first_kind:
+                    results.append((model, False, "probe-failed: " + model + " " + first_kind + " then " + failure_kind + " (2 attempts)"))
+                else:
+                    results.append((model, False, "probe-failed: " + model + " " + failure_kind))
         elif code == 200:
             results.append((model, True, str(code) + " (target: " + BACKEND_HOST + "/litellm/v1/chat/completions, model=" + model + ")"))
         elif code in (401, 403):
-            # Credential fault - capture body and key alias
             body = get_response_body("http://" + BACKEND_HOST + "/litellm/v1/chat/completions",
                                     method="POST",
                                     bearer_token=monitor_key,
                                     data='{"model":"' + model + '","messages":[{"role":"user","content":"health"}],"max_tokens":4}',
                                     timeout=10)
-            # Resolve key alias
-            alias = "monitor-20260813"  # Known from /etc/litellm-monitor.env on CT 116
+            alias = "monitor-20260813"
             results.append((model, False, str(code) + " credential fault: body=" + body + " key_alias=" + alias))
         else:
             results.append((model, False, str(code) + " (target: " + BACKEND_HOST + "/litellm/v1/chat/completions, model=" + model + ")"))
@@ -247,6 +288,7 @@ def main():
     print("")
     
     all_pass = True
+    degraded = []  # Track degraded (busy) checks
     
     # Run all checks
     checks = [
@@ -266,9 +308,15 @@ def main():
     # Model probes
     model_results = check_model_probes()
     for name, passed, detail in model_results:
-        status = "✅" if passed else "❌"
+        # Check if this is a busy (degraded) verdict
+        if not passed and detail.startswith("busy "):
+            status = "⚠️"
+            degraded.append(name)
+        else:
+            status = "✅" if passed else "❌"
         print("  " + status + " " + name + ": " + detail)
-        if not passed:
+        # Only set all_pass=False for real failures (not busy)
+        if not passed and not detail.startswith("busy "):
             all_pass = False
     
     # Admin key list
@@ -294,10 +342,16 @@ def main():
     
     print("")
     if all_pass:
-        print("✅ All checks passed")
+        if degraded:
+            print("✅ All checks passed (" + str(len(degraded)) + " degraded: " + ", ".join(degraded) + ")")
+        else:
+            print("✅ All checks passed")
         return 0
     else:
-        print("❌ Some checks failed")
+        if degraded:
+            print("❌ Some checks failed (" + str(len(degraded)) + " degraded: " + ", ".join(degraded) + ")")
+        else:
+            print("❌ Some checks failed")
         return 1
 
 if __name__ == "__main__":

scripts/proxmox-monitor.sh

@@ -0,0 +1,138 @@
+#!/bin/bash
+# proxmox-monitor.sh — Proxmox Cluster + Docker Monitoring Health Check
+# Implements proxmox-monitor.prose.md (check-health section)
+#
+# Legs: Prometheus, Grafana, Docker Stats Exporter, PVE Exporter, PBS GC
+# All legs must return 200 for healthy status.
+#
+# Run: bash scripts/proxmox-monitor.sh
+# Exits 0 if all probes pass, 1 if any fails.
+
+set -uo pipefail
+
+CT116_HOST="192.168.68.116"
+FAILED=()
+TIMESTAMP=$(date -u '+%Y-%m-%d %H:%M UTC')
+
+echo "=== Proxmox Monitor — $TIMESTAMP ==="
+echo "Executed from: $(pwd -P)"
+echo ""
+
+# 1. Prometheus health (bound to 0.0.0.0:9090 on .116)
+PROM_CODE=$(curl -s -o /dev/null -w '%{http_code}' --connect-timeout 10 http://${CT116_HOST}:9090/-/healthy 2>/dev/null)
+PROM_CODE=$(printf '%s' "$PROM_CODE" | tr -d '[:space:]')
+[ -n "$PROM_CODE" ] || PROM_CODE="000"
+
+if [ "$PROM_CODE" = "200" ]; then
+    echo "  ✅ Prometheus: alive"
+else
+    echo "  🔴 Prometheus: probe-failed: ${CT116_HOST}:9090 (expected 200, got ${PROM_CODE})"
+    FAILED+=("prometheus")
+fi
+
+# 2. Grafana health (bound to 0.0.0.0:3001 on .116)
+GRAF_CODE=$(curl -s -o /dev/null -w '%{http_code}' --connect-timeout 10 http://${CT116_HOST}:3001/api/health 2>/dev/null)
+GRAF_CODE=$(printf '%s' "$GRAF_CODE" | tr -d '[:space:]')
+[ -n "$GRAF_CODE" ] || GRAF_CODE="000"
+
+if [ "$GRAF_CODE" = "200" ]; then
+    echo "  ✅ Grafana: alive"
+else
+    echo "  🔴 Grafana: probe-failed: ${CT116_HOST}:3001 (expected 200, got ${GRAF_CODE})"
+    FAILED+=("grafana")
+fi
+
+# 3. Docker Stats exporter (bound to 127.0.0.1:9324 on .116 — probe from .116 localhost)
+DOCKER_CODE=$(ssh -o ConnectTimeout=5 -o BatchMode=yes root@${CT116_HOST} \
+    "curl -s -o /dev/null -w '%{http_code}' --connect-timeout 10 http://127.0.0.1:9324/metrics" 2>/dev/null)
+DOCKER_CODE=$(printf '%s' "$DOCKER_CODE" | tr -d '[:space:]')
+[ -n "$DOCKER_CODE" ] || DOCKER_CODE="000"
+
+if [ "$DOCKER_CODE" = "200" ]; then
+    echo "  ✅ Docker Stats: alive"
+else
+    echo "  🔴 Docker Stats: probe-failed: CT116:127.0.0.1:9324 (expected 200, got ${DOCKER_CODE})"
+    FAILED+=("docker-stats")
+fi
+
+# 4. PVE Exporter (bound to 127.0.0.1:9221 on .116 — probe from .116 localhost)
+PVE_CODE=$(ssh -o ConnectTimeout=5 -o BatchMode=yes root@${CT116_HOST} \
+    "curl -s -o /dev/null -w '%{http_code}' --connect-timeout 10 http://127.0.0.1:9221/metrics" 2>/dev/null)
+PVE_CODE=$(printf '%s' "$PVE_CODE" | tr -d '[:space:]')
+[ -n "$PVE_CODE" ] || PVE_CODE="000"
+
+if [ "$PVE_CODE" = "200" ]; then
+    echo "  ✅ PVE Exporter: alive"
+else
+    echo "  🔴 PVE Exporter: probe-failed: CT116:127.0.0.1:9221 (expected 200, got ${PVE_CODE})"
+    FAILED+=("pve-exporter")
+fi
+
+# 5. PBS GC liveness (storepve-datastore GC must have run within 48h)
+PBS_GC_OUTPUT=$(ssh -o ConnectTimeout=5 -o BatchMode=yes root@192.168.68.6 \
+    "pct exec 107 -- proxmox-backup-manager garbage-collection list --output-format json" 2>/dev/null)
+PBS_GC_OUTPUT=$(printf '%s' "$PBS_GC_OUTPUT" | tr -d '[:space:]')
+[ -n "$PBS_GC_OUTPUT" ] || PBS_GC_OUTPUT="000"
+
+if [ "$PBS_GC_OUTPUT" = "000" ]; then
+    echo "  🔴 PBS GC: probe-failed: storepve:192.168.68.6 (expected JSON, got 000)"
+    FAILED+=("pbs-gc")
+else
+    # Parse the JSON to get storepve-datastore's last-run-endtime and pending-bytes
+    PBS_GC_RESULT=$(echo "$PBS_GC_OUTPUT" | python3 -c "
+import sys, json
+try:
+    data = json.load(sys.stdin)
+    for store in data:
+        if store['store'] == 'storepve-datastore':
+            endtime = store.get('last-run-endtime')
+            pending = store.get('pending-bytes', 0)
+            if endtime is None or endtime == 0:
+                print('never-run')
+            else:
+                print(f'{endtime}|{pending}')
+            break
+    else:
+        print('absent')
+except json.JSONDecodeError:
+    print('unparseable')
+" 2>/dev/null)
+    
+    if [ -z "$PBS_GC_RESULT" ] || [ "$PBS_GC_RESULT" = "unparseable" ]; then
+        echo "  🔴 PBS GC: probe-failed: storepve:192.168.68.6 (unparseable JSON)"
+        FAILED+=("pbs-gc")
+    elif [ "$PBS_GC_RESULT" = "absent" ]; then
+        echo "  🔴 PBS GC: never-run (storepve-datastore not found in GC list)"
+        FAILED+=("pbs-gc")
+    elif [ "$PBS_GC_RESULT" = "never-run" ]; then
+        echo "  🔴 PBS GC: never-run (storepve-datastore has no last-run-endtime)"
+        FAILED+=("pbs-gc")
+    else
+        # Parse the endtime|pending format
+        LAST_RUN_ENDTIME=$(echo "$PBS_GC_RESULT" | cut -d'|' -f1)
+        PENDING_BYTES=$(echo "$PBS_GC_RESULT" | cut -d'|' -f2)
+        
+        # Convert epoch to age in hours
+        NOW_EPOCH=$(date -u +%s)
+        AGE_HOURS=$(( (NOW_EPOCH - LAST_RUN_ENDTIME) / 3600 ))
+        
+        if [ $AGE_HOURS -gt 48 ]; then
+            echo "  🔴 PBS GC: stale (last run ${AGE_HOURS}h ago, pending-bytes: ${PENDING_BYTES} B)"
+            FAILED+=("pbs-gc")
+        else
+            echo "  ✅ PBS GC: healthy (last run ${AGE_HOURS}h ago, pending-bytes: ${PENDING_BYTES} B)"
+        fi
+    fi
+fi
+
+# ── Summary ─────────────────────────────────────────────────────────────────
+echo ""
+if [ ${#FAILED[@]} -eq 0 ]; then
+    echo "  ✅ All legs OK"
+    exit 0
+else
+    for f in "${FAILED[@]}"; do
+        echo "  🔴 FAILED: $f"
+    done
+    exit 1
+fi

scripts/test_infra_monitoring.sh

@@ -0,0 +1,228 @@
+#!/bin/bash
+# test_infra_monitoring.sh — Asserts that probe calls use the documented targets.
+#
+# Strategy: stub curl and ssh on PATH to capture the exact arguments each leg
+# builds, then assert the URL/port of every call. This catches port drift in
+# the CALL (not just in the config constants) and catches wrong PVE node
+# addresses (not just wrong entry counts).
+#
+# Run: bash scripts/test_infra_monitoring.sh
+# Exits 0 if all assertions pass, 1 otherwise.
+
+set -uo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+SCRIPT="${SCRIPT_DIR}/infra-monitoring.sh"
+
+PASS=0
+FAIL=0
+
+assert() {
+    local desc="$1" condition="$2"
+    if eval "$condition"; then
+        echo "  ✅ $desc"
+        PASS=$((PASS+1))
+    else
+        echo "  🔴 $desc"
+        FAIL=$((FAIL+1))
+    fi
+}
+
+echo "=== test_infra_monitoring.sh ==="
+echo ""
+
+# ── Stub curl: capture argv to a file, return 200 ──────────────────────────
+STUB_DIR=$(mktemp -d)
+trap 'rm -rf "$STUB_DIR"' EXIT
+
+# Stub curl: first arg after flags is the URL; capture all args
+cat > "$STUB_DIR/curl" << 'STUBEOF'
+#!/bin/bash
+echo "$@" >> "${CURL_STUB_LOG:-/dev/null}"
+# Print 200 for %{http_code}
+printf '%s\n' "200"
+exit 0
+STUBEOF
+chmod +x "$STUB_DIR/curl"
+
+# Stub ssh: first arg after options is the remote command; capture it
+cat > "$STUB_DIR/ssh" << 'SSTUBEOF'
+#!/bin/bash
+echo "SSH $@" >> "${SSH_STUB_LOG:-/dev/null}"
+# The last arg is the remote command — extract and log curl args
+for arg in "$@"; do
+    if [[ "$arg" == curl* ]]; then
+        echo "$arg" >> "${SSH_STUB_LOG:-/dev/null}"
+    fi
+done
+printf '%s\n' "200"
+exit 0
+SSTUBEOF
+chmod +x "$STUB_DIR/ssh"
+
+# ── Run the monitor with stubs ────────────────────────────────────────────
+CURL_LOG="$STUB_DIR/curl_calls.log"
+SSH_LOG="$STUB_DIR/ssh_calls.log"
+touch "$CURL_LOG" "$SSH_LOG"
+
+CURL_STUB_LOG="$CURL_LOG" SSH_STUB_LOG="$SSH_LOG" \
+    PATH="$STUB_DIR:$PATH" bash "$SCRIPT" > "$STUB_DIR/output.txt" 2>&1
+
+# ── 1. Port drift detection (from actual curl invocations) ─────────────────
+
+assert "Grafana probed at port 3001" \
+    'grep -q "http://192.168.68.116:3001/api/health" "$CURL_LOG"'
+
+assert "Prometheus probed at port 9090" \
+    'grep -q "http://192.168.68.116:9090/-/healthy" "$CURL_LOG"'
+
+assert "LiteLLM probed via nginx at port 80" \
+    'grep -q "http://192.168.68.116:80/litellm/health" "$CURL_LOG"'
+
+assert "PVE API probed at port 8006" \
+    'grep -q ":8006/api2/json/version" "$CURL_LOG"'
+
+assert "GPU exporter probed at port 9400" \
+    'grep -q ":9400/metrics" "$CURL_LOG"'
+
+# ── 2. PVE API: exact node addresses (catches wrong IPs) ──────────────────
+# Each real PVE node must be probed; CT 116 must NOT be in the PVE set
+
+assert "PVE acerpve 192.168.68.9 probed" \
+    'grep -q "https://192.168.68.9:8006/api2/json/version" "$CURL_LOG"'
+
+assert "PVE minipve 192.168.68.12 probed" \
+    'grep -q "https://192.168.68.12:8006/api2/json/version" "$CURL_LOG"'
+
+assert "PVE storepve 192.168.68.6 probed" \
+    'grep -q "https://192.168.68.6:8006/api2/json/version" "$CURL_LOG"'
+
+assert "PVE amdpve 192.168.68.15 probed" \
+    'grep -q "https://192.168.68.15:8006/api2/json/version" "$CURL_LOG"'
+
+assert "PVE ocupve 192.168.68.5 probed" \
+    'grep -q "https://192.168.68.5:8006/api2/json/version" "$CURL_LOG"'
+
+# CT 116 (.116) must NOT appear as a PVE API target
+assert "CT 116 (.116) NOT probed as PVE API node" \
+    '! grep -q "https://192.168.68.116:8006" "$CURL_LOG"'
+
+# ── 3. PVE API: -k flag present in curl invocation ─────────────────────────
+# The PVE API calls must include -k for self-signed certs
+
+assert "PVE API curl calls include -k flag" \
+    'grep "https://192.168.68.9:8006" "$CURL_LOG" | grep -q -- "-k"'
+
+# ── 4. Undocumented ports must NOT appear in any call ──────────────────────
+assert "Port 9325 NOT in any curl call" \
+    '! grep -q ":9325" "$CURL_LOG"'
+
+assert "Port 9405 NOT in any curl call" \
+    '! grep -q ":9405" "$CURL_LOG"'
+
+# ── 5. Docker Stats / PVE Exporter: SSH-probed at correct ports ────────────
+assert "Docker Stats probed at port 9324 via SSH" \
+    'grep -q "9324" "$SSH_LOG"'
+
+assert "PVE Exporter probed at port 9221 via SSH" \
+    'grep -q "9221" "$SSH_LOG"'
+
+# ── 5a. Per-leg assertions (proves which leg owns which port) ──────────────
+# The script source must show Docker Stats using $DOCKER_STATS_PORT and
+# PVE Exporter using $PVE_EXPORTER_PORT in the correct leg sections
+assert "Docker Stats leg uses DOCKER_STATS_PORT constant" \
+    'grep -A 3 "# 6. Docker Stats" "$SCRIPT" | grep -q "\$DOCKER_STATS_PORT"'
+
+assert "PVE Exporter leg uses PVE_EXPORTER_PORT constant" \
+    'grep -A 3 "# 7. PVE Exporter" "$SCRIPT" | grep -q "\$PVE_EXPORTER_PORT"'
+
+# Verify the constants themselves are set to the correct values
+assert "DOCKER_STATS_PORT constant set to 9324" \
+    'grep -q "^DOCKER_STATS_PORT=\"9324\"" "$SCRIPT"'
+
+assert "PVE_EXPORTER_PORT constant set to 9221" \
+    'grep -q "^PVE_EXPORTER_PORT=\"9221\"" "$SCRIPT"'
+
+# ── 5b. Stale port 9323 (dockerd) NOT probed ──────────────────────────────
+assert "Port 9323 (dockerd) NOT in SSH log" \
+    '! grep -q "9323" "$SSH_LOG"'
+
+# ── 6. No stale ports in the script source (belt-and-suspenders) ──────────
+assert "Port 9325 (historical) NOT in script source" \
+    '! grep -q "9325" "$SCRIPT"'
+
+assert "Port 9405 (historical) NOT in script source" \
+    '! grep -q "9405" "$SCRIPT"'
+
+# ── 7. Failure-line content includes non-empty kind ────────────────────────
+TMP_DIR=$(mktemp -d)
+trap 'rm -rf "$TMP_DIR"' EXIT
+
+# Test 7a: Unexpected status (500) → kind should be unexpected:500
+cat > "$TMP_DIR/curl" << 'EOF'
+#!/bin/bash
+# Stub: return 500 for Grafana port, 200 otherwise
+for arg in "$@"; do
+    if [[ "$arg" == *":3001"* ]]; then
+        echo "500"
+        exit 0
+    fi
+done
+echo "200"
+exit 0
+EOF
+chmod +x "$TMP_DIR/curl"
+OUT=$(PATH="$TMP_DIR:$PATH" bash "$SCRIPT" 2>&1)
+GRAFANA_FAIL=$(echo "$OUT" | grep "Grafana: probe-failed")
+assert "Grafana failure line exists (unexpected status)" \
+    '[[ -n "$GRAFANA_FAIL" ]]' 
+KIND=$(echo "$GRAFANA_FAIL" | grep -oP '\(<[^>]+>\)' | tr -d '()<>')
+assert "Grafana failure kind is non-empty (unexpected status)" \
+    '[[ -n "$KIND" ]]' 
+
+# Test 7b: TLS error (000 + exit 60) → kind should be tls
+cat > "$TMP_DIR/curl" << 'EOF'
+#!/bin/bash
+# Stub: return 000 and exit 60 for Grafana port (TLS error) on ALL invocations
+for arg in "$@"; do
+    if [[ "$arg" == *":3001"* ]]; then
+        echo "000"
+        exit 60
+    fi
+done
+echo "200"
+exit 0
+EOF
+chmod +x "$TMP_DIR/curl"
+# Also stub ssh to return 000 + exit 60 for the retry
+cat > "$TMP_DIR/ssh" << 'EOF'
+#!/bin/bash
+for arg in "$@"; do
+    if [[ "$arg" == curl* ]]; then
+        echo "000"
+        exit 60
+    fi
+done
+echo "200"
+exit 0
+EOF
+chmod +x "$TMP_DIR/ssh"
+export PATH="$TMP_DIR:$PATH"
+OUT=$(bash "$SCRIPT" 2>&1)
+GRAFANA_FAIL=$(echo "$OUT" | grep "Grafana: probe-failed")
+assert "Grafana failure line exists (TLS error)" \
+    '[[ -n "$GRAFANA_FAIL" ]]' 
+KIND=$(echo "$GRAFANA_FAIL" | grep -oP '\(<[^>]+>\)' | tr -d '()<>')
+assert "Grafana failure kind is tls" \
+    '[[ "$KIND" == "tls" ]]'
+
+# ── Summary ─────────────────────────────────────────────────────────────────
+echo ""
+echo "Results: ${PASS} passed, ${FAIL} failed"
+if [ $FAIL -gt 0 ]; then
+    echo "  🔴 TESTS FAILED"
+    exit 1
+else
+    echo "  ✅ ALL TESTS PASSED"
+    exit 0
+fi

scripts/test_proxmox_monitor.sh

@@ -0,0 +1,125 @@
+#!/bin/bash
+# test_proxmox_monitor.sh — Stub-driven tests for PBS GC liveness leg
+
+set -uo pipefail
+
+SCRIPT="$(cd "$(dirname "$0")" && pwd)/proxmox-monitor.sh"
+PASS=0
+FAIL=0
+
+# ── Helpers ────────────────────────────────────────────────────────────────
+assert() {
+    local desc="$1" cond="$2"
+    if eval "$cond" 2>/dev/null; then
+        echo "  ✅ $desc"
+        PASS=$((PASS+1))
+    else
+        echo "  🔴 $desc"
+        FAIL=$((FAIL+1))
+    fi
+}
+
+# ── 1. Healthy: fresh GC, 0 B pending ─────────────────────────────────────
+TMP_DIR=$(mktemp -d)
+FRESH_ENDTIME=$(( $(date -u +%s) - (1 * 3600) ))  # 1 hour ago
+cat > "$TMP_DIR/ssh" << EOF
+#!/bin/bash
+# Stub: return valid JSON with fresh endtime
+echo '[{"store":"storepve-datastore","last-run-endtime":$FRESH_ENDTIME,"pending-bytes":0}]'
+exit 0
+EOF
+chmod +x "$TMP_DIR/ssh"
+
+OUT=$(PATH="$TMP_DIR:$PATH" bash "$SCRIPT" 2>&1)
+PBS_LINE=$(echo "$OUT" | grep "PBS GC:" || echo "")
+assert "Healthy: PBS line exists" '[[ -n "$PBS_LINE" ]]'
+assert "Healthy: shows healthy verdict" '[[ "$PBS_LINE" == *"healthy"* ]]'
+assert "Healthy: shows pending-bytes 0 B" '[[ "$PBS_LINE" == *"pending-bytes: 0 B"* ]]'
+rm -rf "$TMP_DIR"
+
+# ── 2. Stale: GC >48h old ─────────────────────────────────────────────────
+TMP_DIR=$(mktemp -d)
+OLD_ENDTIME=$(( $(date -u +%s) - (49 * 3600) ))  # 49 hours ago
+cat > "$TMP_DIR/ssh" << EOF
+#!/bin/bash
+echo '[{"store":"storepve-datastore","last-run-endtime":$OLD_ENDTIME,"pending-bytes":1048576}]'
+exit 0
+EOF
+chmod +x "$TMP_DIR/ssh"
+
+OUT=$(PATH="$TMP_DIR:$PATH" bash "$SCRIPT" 2>&1)
+PBS_LINE=$(echo "$OUT" | grep "PBS GC:" || echo "")
+assert "Stale: PBS line exists" '[[ -n "$PBS_LINE" ]]'
+assert "Stale: shows stale verdict" '[[ "$PBS_LINE" == *"stale"* ]]'
+assert "Stale: shows pending-bytes 1048576 B" '[[ "$PBS_LINE" == *"pending-bytes: 1048576 B"* ]]'
+rm -rf "$TMP_DIR"
+
+# ── 3. Probe-failed: empty output ─────────────────────────────────────────
+TMP_DIR=$(mktemp -d)
+cat > "$TMP_DIR/ssh" << 'EOF'
+#!/bin/bash
+exit 0
+EOF
+chmod +x "$TMP_DIR/ssh"
+
+OUT=$(PATH="$TMP_DIR:$PATH" bash "$SCRIPT" 2>&1)
+PBS_LINE=$(echo "$OUT" | grep "PBS GC:" || echo "")
+assert "Probe-failed (empty): PBS line exists" '[[ -n "$PBS_LINE" ]]'
+assert "Probe-failed (empty): shows probe-failed" '[[ "$PBS_LINE" == *"probe-failed"* ]]'
+rm -rf "$TMP_DIR"
+
+# ── 4. Probe-failed: unparseable output ───────────────────────────────────
+TMP_DIR=$(mktemp -d)
+cat > "$TMP_DIR/ssh" << 'EOF'
+#!/bin/bash
+echo "proxmox-backup-manager: command not found"
+exit 0
+EOF
+chmod +x "$TMP_DIR/ssh"
+
+OUT=$(PATH="$TMP_DIR:$PATH" bash "$SCRIPT" 2>&1)
+PBS_LINE=$(echo "$OUT" | grep "PBS GC:" || echo "")
+assert "Probe-failed (unparseable): PBS line exists" '[[ -n "$PBS_LINE" ]]'
+assert "Probe-failed (unparseable): shows probe-failed" '[[ "$PBS_LINE" == *"probe-failed"* ]]'
+rm -rf "$TMP_DIR"
+
+# ── 5. Null endtime: never-run ────────────────────────────────────────────
+TMP_DIR=$(mktemp -d)
+cat > "$TMP_DIR/ssh" << 'EOF'
+#!/bin/bash
+echo '[{"store":"storepve-datastore","last-run-endtime":null,"pending-bytes":0}]'
+exit 0
+EOF
+chmod +x "$TMP_DIR/ssh"
+
+OUT=$(PATH="$TMP_DIR:$PATH" bash "$SCRIPT" 2>&1)
+PBS_LINE=$(echo "$OUT" | grep "PBS GC:" || echo "")
+assert "Null endtime: PBS line exists" '[[ -n "$PBS_LINE" ]]'
+assert "Null endtime: shows never-run" '[[ "$PBS_LINE" == *"never-run"* ]]'
+rm -rf "$TMP_DIR"
+
+# ── 6. Datastore absent ───────────────────────────────────────────────────
+TMP_DIR=$(mktemp -d)
+cat > "$TMP_DIR/ssh" << 'EOF'
+#!/bin/bash
+echo '[{"store":"s3-archive","last-run-endtime":null,"pending-bytes":0}]'
+exit 0
+EOF
+chmod +x "$TMP_DIR/ssh"
+
+OUT=$(PATH="$TMP_DIR:$PATH" bash "$SCRIPT" 2>&1)
+PBS_LINE=$(echo "$OUT" | grep "PBS GC:" || echo "")
+assert "Datastore absent: PBS line exists" '[[ -n "$PBS_LINE" ]]'
+assert "Datastore absent: shows never-run" '[[ "$PBS_LINE" == *"never-run"* ]]'
+rm -rf "$TMP_DIR"
+
+# ── Summary ────────────────────────────────────────────────────────────────
+echo ""
+echo "Results: ${PASS} passed, ${FAIL} failed"
+if [ $FAIL -gt 0 ]; then
+    echo "  🔴 TESTS FAILED"
+    exit 1
+else
+    echo "  ✅ ALL TESTS PASSED"
+    exit 0
+fi

scripts/zulip-monitor.sh

@@ -8,12 +8,21 @@
 set -euo pipefail
 
 # Credentials sourced from environment variable ZULIP_API_KEY (set by vault-backed start script)
-# Never fall back to a literal key
-ZULIP_API_KEY="${ZULIP_API_KEY:?ZULIP_API_KEY not set — refusing to run with no credential}"
+# Never fall back to a literal key.
+# When unset/placeholder, the server leg is still probed (200 without auth is expected) —
+# only notify() is gated on credential. The pi/Tanko/kagentz
+# legs do not need the Zulip API key. The placeholder is captain-held:
+# zulip-health-credential-placeholder-20260913.
+ZULIP_API_KEY="${ZULIP_API_KEY:-}"
 ZULIP_SITE="https://chat.sysloggh.net"
 ZULIP_EMAIL="abiba-bot@chat.sysloggh.net"
 OWNER_ZULIP_ID="9"
 
+# Track whether the Zulip API credential is usable
+ZULIP_CRED_OK=1
+if [ -z "$ZULIP_API_KEY" ] || [[ "$ZULIP_API_KEY" == *"placeholder"* ]] || [[ "$ZULIP_API_KEY" == *"REDACTED"* ]]; then
+  ZULIP_CRED_OK=0
+fi
 
 LOG="/root/zulip-health-monitor.log"
 TIMESTAMP=$(date -u '+%Y-%m-%d %H:%M UTC')
@@ -24,23 +33,29 @@ notify() {
   local severity="$1" msg="$2"
   echo "[$severity] $msg"
   
-  # Zulip DM to owner
-  local content="${severity} Zulip Monitor: ${msg}"
-  local form
-  form="type=private&to=%5B${OWNER_ZULIP_ID}%5D&content=$(python3 -c "import urllib.parse; print(urllib.parse.quote('''${content}'''))")"
-  curl -sf -X POST "${ZULIP_SITE}/api/v1/messages" \
-    -u "${ZULIP_EMAIL}:${ZULIP_API_KEY}" \
-    -d "${form}" > /dev/null 2>&1 || true
-  # Zulip stream post to #agent-hub on topic 'zulip-health'
-  local stream_content="${severity} Zulip Monitor: ${msg}"
-  curl -sf -X POST "${ZULIP_SITE}/api/v1/messages" \
-    -u "${ZULIP_EMAIL}:${ZULIP_API_KEY}" \
-    -d "type=stream&to=%5B7%5D&topic=zulip-health&content=$(printf '%s' "${stream_content}" | python3 -c "import sys,urllib.parse; print(urllib.parse.quote_from_bytes(sys.stdin.buffer.read()))")" \
-    > /dev/null 2>&1 \
-    || echo "  WARN: stream alert to #agent-hub (zulip-health) delivery failed (curl exit $?)" >> "$LOG"
+  # Zulip DM to owner (skip if no credential)
+  if [ "$ZULIP_CRED_OK" -eq 1 ]; then
+    local content="${severity} Zulip Monitor: ${msg}"
+    local form
+    form="type=private&to=%5B${OWNER_ZULIP_ID}%5D&content=$(python3 -c "import urllib.parse; print(urllib.parse.quote('''${content}'''))")"
+    curl -sf -X POST "${ZULIP_SITE}/api/v1/messages" \
+      -u "${ZULIP_EMAIL}:${ZULIP_API_KEY}" \
+      -d "${form}" > /dev/null 2>&1 || true
+    # Zulip stream post to #agent-hub on topic 'zulip-health'
+    local stream_content="${severity} Zulip Monitor: ${msg}"
+    curl -sf -X POST "${ZULIP_SITE}/api/v1/messages" \
+      -u "${ZULIP_EMAIL}:${ZULIP_API_KEY}" \
+      -d "type=stream&to=%5B7%5D&topic=zulip-health&content=$(printf '%s' "${stream_content}" | python3 -c "import sys,urllib.parse; print(urllib.parse.quote_from_bytes(sys.stdin.buffer.read()))")" \
+      > /dev/null 2>&1 \
+      || echo "  WARN: stream alert to #agent-hub (zulip-health) delivery failed (curl exit $?)">> "$LOG"
+  else
+    echo "  ALERT SUPPRESSED (no credential): ${severity} ${msg}" >> "$LOG"
+  fi
 }
 
 # ── Global: Zulip Server ──
+# F3: Always probe server regardless of credential — 200 without auth is expected
+# (verified live: server_settings returns 200 with no credential or wrong key).
 SERVER_CODE=$(curl -s -o /dev/null -w "%{http_code}" --connect-timeout 10 \
   https://chat.sysloggh.net/api/v1/server_settings \
   -u "${ZULIP_EMAIL}:${ZULIP_API_KEY}" 2>/dev/null) || SERVER_CODE="000"
@@ -183,7 +198,11 @@ fi
 
 # ── Summary ──
 if [ "$ISSUES" -eq 0 ]; then
-  echo "  Result: ✅ All healthy" >> "$LOG"
+  if [ "$ZULIP_CRED_OK" -eq 0 ]; then
+    echo "  Result: ✅ All healthy" >> "$LOG"
+  else
+    echo "  Result: ✅ All healthy" >> "$LOG"
+  fi
 else
   echo "  Result: 🔴 $ISSUES issue(s) found" >> "$LOG"
   notify "🔴" "$ISSUES issue(s) found — check /root/zulip-health-monitor.log"