feat: consolidate litellm-health into litellm-self-heal
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- litellm-self-heal: merged health check as §Health Check section,
  includes full architecture diagram (v4.0.0), GPU topology, timeout
  tables, container list, and execution flow. Eliminates duplication
  between the two contracts.
- litellm-health: marked DEPRECATED, retained for reference
- README.md: updated with consolidated contract, deprecation notice,
  disk-gc-threat-response, and infrastructure-monitoring status
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@@ -7,24 +7,89 @@ note: >
This contract is now manual-only — triggers require explicit user request.
Consider reimplementing as a standalone cron job or prose contract.
Source of truth for GPU topology: gpu-fleet.prose.md
Consolidated from litellm-health + litellm-self-heal on 2026-07-09 to eliminate
duplication of architecture diagrams, GPU topology, timeout tables, and container
lists. Health check is now § Health Check within this contract.
Source of truth for GPU topology and keys: gpu-fleet.prose.md
Last verified: 2026-07-09
description: >
Standing responsibility that monitors LiteLLM health and proactively
fixes common issues. Reports every action via Zulip DM and RA-H OS
knowledge graph for full audit trail.
LiteLLM inference stack health monitoring + self-healing. Verifies the full
nginx → LiteLLM → GPU chain, 8 containers on CT 116, 3 GPU hosts, model
inference, and agent keys. Applies remediation rules for common failures.
Reports every action via Zulip DM and RA-H OS knowledge graph.
---
# LiteLLM Operations — Health Check + Self-Heal
## Architecture (v4.0.0 — Direct: nginx → LiteLLM → GPU)
```
Request → nginx:80 → LiteLLM:4000 → GPU(llama-server, parallel 2)
Key validation
Fallback chains
Budget tracking
Prometheus ← metrics
Grafana :3001
harness-router :9000 — DEPRECATED, container still runs but
NOT in request path. nginx routes /v1 → LiteLLM directly.
Router slot booking + circuit breakers replaced by
LiteLLM native fallbacks + timeouts.
```
## Parameters
- public_url: string — Public LiteLLM URL (default: "https://litellm.sysloggh.net")
- backend_host: string — Internal CT host (default: "192.168.68.116")
- auth_host: string — Authentik OIDC server (default: "192.168.68.11")
- gpu_hosts: array — GPU inference hosts (default: ["192.168.68.8", "192.168.68.110", "192.168.68.15"])
- gpu_dashboard_url: string — Fleet dashboard (default: "http://192.168.68.24:9100")
- grafana_url: string — Grafana dashboards (default: "http://192.168.68.116:3001")
## GPU Fleet Topology
| Host | IP | Hardware | Models Served | Engine | Context | Parallel |
|------|-----|----------|---------------|--------|---------|----------|
| llm-gpu | 192.168.68.8 | NVIDIA RTX 3090 (24 GB) | qwen3.6-27B-code | llama-server systemd | 128K | 2 |
| ocu-llm | 192.168.68.110 | NVIDIA RTX 5070 (12 GB) | gemma-4-12b | llama-server systemd | 128K | 2 |
| amdpve | 192.168.68.15 | AMD Strix Halo 64GB UMA | ornith-1.0-35b | llama-server systemd (Vulkan) | 256K | 2 |
## Model Fallback Chains (LiteLLM)
| Primary | Timeout | Fallback | Timeout |
|---------|---------|----------|---------|
| qwen3.6-27B-code | 90s | gemma-4-12b | 120s |
| gemma-4-12b | 120s | qwen3.6-27B-code | 90s |
| ornith-1.0-35b | 120s | qwen → gemma | — |
| syslog-auto (balanced) | 90s | qwen → gemma | — |
> Global: request_timeout=300s, nginx proxy_read_timeout=600s
## Containers on CT 116
| Container | Image | Port | Health Check |
|-----------|-------|------|-------------|
| harness-litellm | berriai/litellm:1.90.0-rc.1 | :4000→:4001 | /health/liveliness |
| harness-router | inference-harness-router | :9000 (127.0.0.1) | /health (DEPRECATED — not in path) |
| harness-nginx | nginx:alpine | :80 | HTTP 200 on /health |
| harness-postgres | postgres:16-alpine | :5432 | pg_isready |
| harness-redis | redis:7-alpine | :6379 | PING |
| harness-dashboard | inference-harness-dashboard | :3000 | /health |
| harness-grafana | grafana/grafana | :3000→:3001 | /api/health |
| harness-prometheus | prom/prometheus | :9090 | /-/healthy |
## Maintains
- litellm-admin-ui: { status: "healthy", last_check: timestamp }
- litellm-api-docs: { status: "healthy", last_check: timestamp }
- litellm-containers: { status: "healthy", last_check: timestamp }
- litellm-oidc: { status: "healthy", last_check: timestamp }
## Requires
- litellm-health:function
- litellm-gpu-fleet: { status: "healthy", models: int, alerts: array }
- litellm-agent-keys: { count: int, valid: int }
## Continuity
@@ -32,55 +97,48 @@ description: >
- Also wakes on user request
- On failure: re-check after 30s, escalate after 3 consecutive failures
## Reporting
---
Every remediation cycle produces a structured report in three channels:
## Health Check
### 1. RA-H OS Knowledge Graph Node
Created as `[LEARN] litellm-self-heal: <run_id>` with:
- metadata: { type: "remediation", status: "fixed" | "escalated" | "healthy" }
- source: Full JSON report of the cycle
- description: Summary of what was found, fixed, and escalated
Run this first on every cycle. Results feed into remediation rules below.
### 2. Zulip DM to Owner
Sent immediately for:
- `issues_fixed > 0` — "🛠 LiteLLM Self-Heal — Fix Applied"
- `issues_escalated > 0` — "⚠ LiteLLM Self-Heal — Needs Your Attention"
- Every 10th clean cycle — "✅ All Clear (10 checks passed)"
### 1. Check public endpoints
- GET {{public_url}}/ui/ → expect 200 ("LiteLLM Dashboard")
- GET {{public_url}}/docs → expect 200 ("LiteLLM API - Swagger UI")
### 3. Daily Digest (end of day)
A summary of the last 24 hours sent as a single Zulip DM:
```
📋 LiteLLM Self-Heal — Daily Digest (2026-06-26)
### 2. Check LiteLLM health (no-auth)
- GET http://{{backend_host}}/litellm/health/liveliness → expect 200
Total cycles: 288 (every 5 min)
Issues found: 3
├─ Fixed automatically: 3 (nginx restart x2, docs fix x1)
└─ Escalated: 0
### 3. Check backend container health
- SSH to {{backend_host}} → `docker ps` → verify 8 containers healthy
- Critical: harness-litellm, harness-router, harness-nginx, harness-postgres
- Monitoring: harness-redis, harness-dashboard, harness-grafana, harness-prometheus
Top actions:
• harness-nginx restarted — 2026-06-26 02:15
• DOCS_URL corrected — 2026-06-26 07:30
• harness-nginx restarted — 2026-06-26 14:46
### 4. Check GPU fleet health (via fleet dashboard)
- GET {{gpu_dashboard_url}}/gpu-data → expect 200 with GPU metrics JSON
- Verify GPUs reporting status "healthy"
- Check alerts array for active warnings/critical
Uptime: 23h 47m — All healthy now ✅
```
### 5. Check model inference via LiteLLM — test each model
- POST /v1/chat/completions model=gemma-4-12b → expect 200
- POST /v1/chat/completions model=qwen3.6-27B-code → expect 200
- POST /v1/chat/completions model=ornith-1.0-35b → expect 200
- Use master key for auth
### 4. Weekly Digest (every Monday)
Same format as daily but covering 7 days. Sent to both Zulip DM and
logged as a `[REPORT]` knowledge graph node for long-term trending.
### 6. Check agent keys
- GET /key/list with master key → verify all 6 agents have keys
### 5. Relay Message (if cross-agent)
If a fix required another agent's help (e.g., Authentik restart), a relay
message is sent to the responsible agent with full context.
### 7. Check Grafana
- GET {{grafana_url}}/api/health → expect 200
## GPU Fleet
### 8. Compile overall status
Determine overall_status from individual check results:
- "healthy" — all checks pass
- "degraded" — 1-2 non-critical checks fail
- "down" — critical checks fail
| Host | IP | Hardware | Models | Engine | Context |
|------|-----|----------|--------|--------|---------|
| amdpve | 192.168.68.15 | Strix Halo 64GB UMA | ornith-1.0-35b | llama-server :8080 (Vulkan) | 256K |
| llm-gpu | 192.168.68.8 | RTX 3090 24GB | qwen3.6-27B-code | llama-server :8080 (systemd) | 128K |
| ocu-llm | 192.168.68.110 | RTX 5070 12GB | gemma-4-12b | llama-server :8080 (systemd) | 128K |
---
## Remediation Rules
@@ -115,30 +173,82 @@ If 503 errors occur, check LiteLLM timeouts and GPU health directly.
### Rule 8: Agent Keys Invalid (401)
Detect → agents report auth errors
Root cause → keys in router env var, not in LiteLLM DB
Root cause → keys not in LiteLLM DB
Fix → generate keys in LiteLLM via /key/generate → update /etc/environment on agent hosts
Escalate → if SSH access unavailable, send Zulip DM
### Rule 9: Stale Active Counter in Redis
Detect → active:<model> > 0 while GPU idle
Fix → `redis-cli DEL active:<model>` → restart router
Prevent → add TTL to active keys in router code
### Rule 9: Stale Active Counter in Redis — DEPRECATED
Router no longer in path so Redis active counters are unused. Rule retained
for reference but inactive. If Redis issues occur, check harness-redis container.
---
## Reporting
Every remediation cycle produces a structured report:
### 1. RA-H OS Knowledge Graph Node
Created as `[LEARN] litellm-self-heal: <run_id>` with full JSON report.
### 2. Zulip DM to Owner
- `issues_fixed > 0` — "🛠 LiteLLM Self-Heal — Fix Applied"
- `issues_escalated > 0` — "⚠ LiteLLM Self-Heal — Needs Your Attention"
- Every 10th clean cycle — "✅ All Clear (10 checks passed)"
### 3. Daily Digest (end of day)
Summary of last 24 hours: total cycles, issues found/fixed/escalated,
top actions, uptime.
### 4. Relay Message (if cross-agent)
If a fix requires another agent (e.g., Authentik restart), relay sent
to responsible agent with full context.
---
## Execution
1. Run health check
2. Apply remediation for each failure
3. **Generate report** with all actions taken
4. **Log to knowledge graph** — create `[LEARN]` node
5. **Notify user** via Zulip DM if anything changed
6. Wait 300s and repeat
```prose
-- Phase 1: Health Check
let health = call health-check
public_url: public_url
backend_host: backend_host
gpu_dashboard_url: gpu_dashboard_url
grafana_url: grafana_url
-- Phase 2: Apply remediation for each failure
let actions = []
for check in health.failed:
let fix = apply-remediation-rule
rule: lookup-rule(check.name)
target: check.target
push actions fix
-- Phase 3: Generate report
call report-generator
health: health
actions: actions
-- Phase 4: Log to knowledge graph
call kg-logger
run_id: run_id
health: health
actions: actions
-- Phase 5: Notify if anything changed
if actions.length > 0:
call zulip-notifier
actions: actions
health: health
-- Wait 300s and repeat
```
## Audit Trail Format
```json
{
"run_id": "self-heal-20260626-001",
"timestamp": "2026-06-26T14:00:00Z",
"run_id": "self-heal-20260709-001",
"timestamp": "2026-07-09T14:00:00Z",
"duration_ms": 1234,
"checks_passed": 7,
"checks_failed": 0,
@@ -152,7 +262,7 @@ Prevent → add TTL to active keys in router code
With failures:
```json
{
"run_id": "self-heal-20260626-002",
"run_id": "self-heal-20260709-002",
"issues_found": 1,
"issues_fixed": 1,
"actions": [