Registry indexed
Sequences a complete, end-to-end, fully self-hosted AI agent stack deployment from scratch — GPU procurement/sizing for open-weight model serving, self-hosted LLM serving (vLLM/TGI), agent control-flow architecture, a self-hosted vector database for RAG, self-hosted MCP servers f
Sequences a complete, end-to-end, fully self-hosted AI agent stack deployment from scratch — GPU procurement/sizing for open-weight model serving, self-hosted LLM serving (vLLM/TGI), agent control-flow architecture, a self-hosted vector database for RAG, self-hosted MCP servers for tool access, and an evaluation/guardrails harness — with no managed LLM API or managed vector database anywhere in the stack. An integration/orchestration skill that sequences existing tool-specific skills in the right order and flags handoff points, explicit about the added GPU-procurement and operational burden versus a cloud-managed agent stack. Use when a user asks to "build a self-hosted AI agent stack with open-weight models," "run our agent on our own GPUs with no managed LLM API," "stand up a self-hosted vector database and MCP servers for an agent platform," or "give me the end-to-end sequence for a fully self-hosted agent deployment from GPU procurement to production."
Source documentation, not instructions for this website. Review permissions before running any commands.
The cloud-managed AI agent path in this skill family leans on managed LLM provider APIs and a managed vector database, trading infrastructure ownership for per-token pricing and someone else's on-call rotation. This skill is the opposite path: serving an open-weight model on GPU infrastructure the team itself procures and operates, paired with a self-hosted vector database and self-hosted MCP servers, with no managed LLM API or managed vector database anywhere in the stack. The tradeoff is real, and the sequencing risk is sharper than on the managed path: GPU capacity has to be sized and provisioned before the agent's latency budget is even meaningfully designable (unlike a managed API, where provider-side scaling is someone else's problem), and every durability concern a managed vector database absorbs — replication, backup, upgrade — becomes this team's responsibility from day one. This skill sequences that whole path — GPU procurement through evaluation — and is explicit throughout about where the self-hosted burden actually lands.
kubectl/helm if deploying on Kubernetes, and a realistic estimate of
expected concurrent request volume and sequence length before sizing
either the GPU serving fleet or the vector database cluster — sizing
either without real numbers produces guesses that fail under real load.This is the phase sequence. Each phase links to the skill that covers its full depth; the text here covers only the self-hosted-specific sequencing and the operational burden each phase adds versus a managed alternative.
Phase 1 — GPU infrastructure procurement and sizing. Before anything else, size and provision the GPU capacity this stack will run on, per gpu-accelerator-infrastructure-for-ml-training: install the NVIDIA GPU Operator, and design a dedicated serving GPU node pool (separate from any training capacity that may share the cluster) sized to the model's memory footprint plus KV-cache headroom at expected concurrency:
helm install gpu-operator nvidia/gpu-operator \
--namespace gpu-operator --create-namespace --set mig.strategy=mixed
kubectl taint nodes -l gpu-pool=agent-serving workload=serving:NoSchedule
This has no equivalent phase at all on the cloud-managed path — a managed LLM API absorbs this entirely. Treat GPU procurement lead time (physical hardware or committed cloud GPU capacity) as a hard blocking dependency for every phase that follows, not something to start in parallel with agent-architecture work.
Phase 2 — self-hosted LLM serving. Deploy the chosen open-weight model with vLLM or TGI on the Phase 1 GPU pool, applying the batching-aware LLM serving guidance from model-serving-and-scaling (that skill's LLM-specific guidance on continuous batching and KV-cache sizing applies directly here, even though it lives in the MLOps domain):
apiVersion: apps/v1
kind: Deployment
metadata: { name: agent-llm-server }
spec:
template:
spec:
nodeSelector: { gpu-pool: agent-serving }
containers:
- name: vllm
image: vllm/vllm-openai:latest
args: ["--model", "<OPEN_WEIGHT_MODEL_ID>", "--tensor-parallel-size", "1"]
resources: { limits: { nvidia.com/gpu: 1 } }
Measure real serving latency on this actual hardware before Phase 3 finalizes the agent's iteration cap and per-step timeout — a latency budget designed against an assumed number, rather than the real measured p95 on the Phase 1 hardware, is the most common self-hosted- specific design error in this sequence (see Common pitfalls).
Phase 3 — agent architecture design. Design the control loop, termination condition, iteration cap, wall-clock timeout, and tool- boundary classification per agent-architecture-design, using the Phase 2 measured latency (not an assumed managed-API latency figure) to set realistic per-call timeouts and the overall loop's wall-clock budget.
name: complete-ai-agent-stack-deployment-self-hosted-from-scratch description: > Sequences a complete, end-to-end, fully self-hosted AI agent stack deployment from scratch — GPU procurement/sizing for open-weight model serving, self-hosted LLM serving (vLLM/TGI), agent control-flow architecture, a self-hosted vector database for RAG, self-hosted MCP servers for tool access, and an evaluation/guardrails harness — with no managed LLM API or managed vector database anywhere in the stack. An integration/orchestration skill that sequences existing tool-specific skills in the right order and flags handoff points, explicit about the added GPU-procurement and operational burden versus a cloud-managed agent stack. Use when a user asks to "build a self-hosted AI agent stack with open-weight models," "run our agent on our own GPUs with no managed LLM API," "stand up a self-hosted vector database and MCP servers for an agent platform," or "give me the end-to-end sequence for a fully self-hosted agent deployment from GPU procurement to production." license: Apache-2.0 compatibility: "Claude Code, GitHub Copilot, OpenAI Codex, Cursor, Gemini CLI" metadata: domain: ai-agent maturity: stable
---
name: complete-ai-agent-stack-deployment-self-hosted-from-scratch
description: >
Sequences a complete, end-to-end, fully self-hosted AI agent stack
deployment from scratch — GPU procurement/sizing for open-weight model
serving, self-hosted LLM serving (vLLM/TGI), agent control-flow
architecture, a self-hosted vector database for RAG, self-hosted MCP
servers for tool access, and an evaluation/guardrails harness — with no
managed LLM API or managed vector database anywhere in the stack. An
integration/orchestration skill that sequences existing tool-specific
skills in the right order and flags handoff points, explicit about the
added GPU-procurement and operational burden versus a cloud-managed
agent stack. Use when a user asks to "build a self-hosted AI agent stack
with open-weight models," "run our agent on our own GPUs with no managed
LLM API," "stand up a self-hosted vector database and MCP servers for an
agent platform," or "give me the end-to-end sequence for a fully
self-hosted agent deployment from GPU procurement to production."
license: Apache-2.0
compatibility: "Claude Code, GitHub Copilot, OpenAI Codex, Cursor, Gemini CLI"
metadata:
domain: ai-agent
maturity: stable
---
# Complete AI Agent Stack Deployment (Self-Hosted) From Scratch
## Purpose
The cloud-managed AI agent path in this skill family leans on managed LLM
provider APIs and a managed vector database, trading infrastructure
ownership for per-token pricing and someone else's on-call rotation. This
skill is the opposite path: serving an open-weight model on GPU
infrastructure the team itself procures and operates, paired with a
self-hosted vector database and self-hosted MCP servers, with no managed
LLM API or managed vector database anywhere in the stack. The tradeoff is
real, and the sequencing risk is sharper than on the managed path: GPU
capacity has to be sized and provisioned *before* the agent's latency
budget is even meaningfully designable (unlike a managed API, where
provider-side scaling is someone else's problem), and every durability
concern a managed vector database absorbs — replication, backup, upgrade
— becomes this team's responsibility from day one. This skill sequences
that whole path — GPU procurement through evaluation — and is explicit
throughout about where the self-hosted burden actually lands.
## When to use
- Standing up a production AI agent with a hard requirement of no managed
LLM API or managed vector database — data residency, air-gapped
deployment, fixed-cost GPU amortization, or model-customization reasons
all commonly drive this.
- Deciding whether a team genuinely has the GPU procurement and
operational capacity to self-host an agent stack, versus one of the
cloud-managed alternatives in this skill family.
- Auditing an existing self-hosted agent deployment for a skipped or
out-of-order phase (e.g. an agent's latency budget designed before real
serving latency was measured on actual hardware, or a self-hosted
vector database with no replication running in production for months).
- Rebuilding a reference self-hosted agent architecture for a second team
or environment that should follow the same proven sequence as a
known-good first deployment.
- Honestly comparing the total cost and operational burden of this path
against the cloud-managed alternative before committing to it.
## Prerequisites & environment
- GPU infrastructure already provisioned or provisionable — on
Kubernetes, this means the NVIDIA GPU Operator and dedicated
serving-shaped GPU node pools per
[gpu-accelerator-infrastructure-for-ml-training](../../../mlops/skills/gpu-accelerator-infrastructure-for-ml-training/SKILL.md)
(that skill's title says "for ML training" but its GPU Operator/MIG/
node-pool guidance applies identically to inference-serving GPU
capacity). Whether this capacity is on-prem, colocated, or
cloud-rented-as-raw-compute, this team owns its procurement lead time
and scaling — there is no managed API absorbing a traffic spike on its
own.
- A self-hosting-capable serving runtime (vLLM or TGI) and the open-weight
model checkpoint(s) already selected and downloaded, with a plan for
where model weights are versioned and stored (not just "a directory on
the serving node").
- A self-hosted vector database deployment target (Weaviate or Milvus,
self-managed on Kubernetes) and its own dedicated compute/storage —
distinct from the GPU serving nodes, since vector search is typically
CPU/memory-bound, not GPU-bound.
- `kubectl`/`helm` if deploying on Kubernetes, and a realistic estimate of
expected concurrent request volume and sequence length before sizing
either the GPU serving fleet or the vector database cluster — sizing
either without real numbers produces guesses that fail under real load.
- A decision, made deliberately and with realistic staffing in mind, about
whether this team can actually operate GPU capacity planning, model
serving upgrades, and vector database durability long-term — see the
honest tradeoff called out in Common pitfalls.
## Step-by-step guidance
This is the phase sequence. Each phase links to the skill that covers its
full depth; the text here covers only the self-hosted-specific sequencing
and the operational burden each phase adds versus a managed alternative.
1. **Phase 1 — GPU infrastructure procurement and sizing.** Before
anything else, size and provision the GPU capacity this stack will
run on, per
[gpu-accelerator-infrastructure-for-ml-training](../../../mlops/skills/gpu-accelerator-infrastructure-for-ml-training/SKILL.md):
install the NVIDIA GPU Operator, and design a dedicated serving GPU
node pool (separate from any training capacity that may share the
cluster) sized to the model's memory footprint plus KV-cache headroom
at expected concurrency:
```bash
helm install gpu-operator nvidia/gpu-operator \
--namespace gpu-operator --create-namespace --set mig.strategy=mixed
kubectl taint nodes -l gpu-pool=agent-serving workload=serving:NoSchedule
```
This has no equivalent phase at all on the cloud-managed path — a
managed LLM API absorbs this entirely. Treat GPU procurement lead time
(physical hardware or committed cloud GPU capacity) as a hard blocking
dependency for every phase that follows, not something to start in
parallel with agent-architecture work.
2. **Phase 2 — self-hosted LLM serving.** Deploy the chosen open-weight
model with vLLM or TGI on the Phase 1 GPU pool, applying the
batching-aware LLM serving guidance from
[model-serving-and-scaling](../../../mlops/skills/model-serving-and-scaling/SKILL.md)
(that skill's LLM-specific guidance on continuous batching and
KV-cache sizing applies directly here, even though it lives in the
MLOps domain):
```yaml
apiVersion: apps/v1
kind: Deployment
metadata: { name: agent-llm-server }
spec:
template:
spec:
nodeSelector: { gpu-pool: agent-serving }
containers:
- name: vllm
image: vllm/vllm-openai:latest
args: ["--model", "<OPEN_WEIGHT_MODEL_ID>", "--tensor-parallel-size", "1"]
resources: { limits: { nvidia.com/gpu: 1 } }
```
**Measure real serving latency on this actual hardware before Phase 3
finalizes the agent's iteration cap and per-step timeout** — a latency
budget designed against an assumed number, rather than the real
measured p95 on the Phase 1 hardware, is the most common self-hosted-
specific design error in this sequence (see Common pitfalls).
3. **Phase 3 — agent architecture design.** Design the control loop,
termination condition, iteration cap, wall-clock timeout, and tool-
boundary classification per
[agent-architecture-design](../agent-architecture-design/SKILL.md),
using the Phase 2 measured latency (not an assumed managed-API
latency figure) to set realistic per-call timeouts and the overall
loop's wall-clock budget.
4. **Phase 4 — self-hosted vector database and RAG pipeline.** Design
the chunking/embedding/retrieval pattern per
[rag-pipeline-design](../rag-pipeline-design/SKILL.md), then deploy a
self-hosted Weaviate or Milvus cluster per
[vector-database-operations-pinecone-weaviate-milvus](../vector-database-operations-pinecone-weaviate-milvus/SKILL.md)'s
self-hosted guidance — sized, sharded, and **replicated** from the
start:
```python
# Milvus collection replication (self-hosted — no managed-service
# durability behind this unless explicitly configured)
collection: agent_knowledge_base
replica_number: 2 # survives one query-node loss without downtime
```
Unlike a managed vector database, replication, backup, and capacity
planning here are entirely this team's responsibility — a
single-replica self-hosted index has no vendor SLA behind it at all.
5. **Phase 5 — self-hosted MCP servers.** Build and deploy MCP servers
for tool access per
[mcp-server-development](../mcp-server-development/SKILL.md), on
network infrastructure segmented from the Phase 1/2 GPU serving
cluster's internal network — an MCP server sharing an unsegmented
network with the model-serving control plane gives a compromised tool
call a much larger blast radius than the tool's documented scope
suggests. Scope each server's backend credential to least privilege,
independent of any broad credential the GPU cluster's own service
accounts might otherwise have.
6. **Phase 6 — evaluation harness and guardrails.** Build the offline
eval set and runtime guardrail layer per
[agent-evaluation-and-guardrails](../agent-evaluation-and-guardrails/SKILL.md)
before Phase 2–5's full stack serves real traffic, including
adversarial cases for RAG-content injection (Phase 4) and MCP-tool-
output injection (Phase 5), exactly as on the cloud-managed path — the
injection risk itself doesn't change because the model is self-hosted.
7. **Phase 7 — cost and utilization monitoring.** Unlike the cloud-
managed path's per-token provider billing, self-hosted cost is
dominated by GPU capital/amortized cost and utilization, not per-call
spend — apply the structural levers from
[llm-cost-and-latency-optimization](../../../ai-agent/skills/llm-cost-and-latency-optimization/SKILL.md)
(context trimming, batching, right-sized models per step) alongside
GPU utilization monitoring (`DCGM_FI_DEV_GPU_UTIL`) from the Phase 1
GPU infrastructure layer. A self-hosted GPU fleet sitting at 15%
utilization between bursty agent traffic can easily cost more in
amortized terms than the managed-API alternative would have — this
is a real total-cost-of-ownership comparison to make explicitly, not
an assumption that self-hosting is automatically cheaper.
## Best practices
- Treat GPU procurement (Phase 1) as the hard, lead-time-bound
prerequisite it is — every other phase's design decisions (Phase 3's
latency budget especially) depend on real measured numbers from this
phase, not estimates made in parallel with it.
- Measure real serving latency and throughput on the actual Phase 1/2
hardware before finalizing any agent-loop timeout in Phase 3 — a
self-hosted serving stack's latency characteristics differ enough from
a managed API's that assumptions carried over from the managed path
are unreliable here.
- Set a replication factor of at least 2 on the self-hosted vector
database (Phase 4) from the start — there is no managed-service
failover behind a self-hosted single-replica index, and this is a
cheap decision to make before go-live versus after a first outage.
- Segment MCP servers' (Phase 5) network access from the GPU
serving/training cluster's internal network deliberately — don't treat
"it's all internal infrastructure" as equivalent to "it's all one
trust boundary."
- Model the total cost of the self-hosted sSkill source recorded
Skill instructions are recorded. This is not a runtime test, safety guarantee or compatibility certification.
Review before install: Avoid automatic install
License: Apache-2.0
Listed tools are metadata hints, not tested compatibility. Agent prompts are suggested handoffs.
Repository metadata and review signals are advisory. Popularity, source discovery and successful execution are different facts.
Version reported in registry metadata; check source releases before relying on it.
Quality
51/100
Needs review
This page exposes the same decision, trust, audit, use-case, and install signals through the Registry API, so agents can rank this skill without scraping the UI.
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},
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},
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"AI review approval is missing",
"Financial research output is not financial advice; require human review before any live investment decision.",
"Low GitHub adoption signal",
"Quality score needs review",
"Permission surface needs review: secrets or environment access, shell or command execution",
"GitHub adoption: 38 GitHub stars",
"Stars/forks activity: 38 stars, 18 forks; issue activity unavailable in current metadata",
"Dependency/runtime risk: command execution surface, credential or environment access"
]
},
"agent_proven": {
"version": "agent-proven-v1",
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"label": "Needs first agent run",
"summary": "No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.",
"metrics": {
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"successfulOutcomes": 0,
"failedOutcomes": 0,
"installAttempts": 0,
"installSuccessRate": null,
"successRate": null,
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"productionOutcomes": 0,
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},
"signals": [],
"penalties": [
"No real agent outcome evidence yet"
]
},
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"Dependency or permission surface needs review",
"Permission surface may require sandboxing",
"Financial research output is not financial advice; require human review before any live investment decision",
"Low GitHub adoption signal",
"AI review approval is missing",
"Financial research output is not financial advice; require human review before any live investment decision.",
"Quality score needs review",
"Permission surface needs review: secrets or environment access, shell or command execution"
]
},
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"tier": "blocked",
"label": "Blocked for auto-install",
"auto_install_policy": "block",
"auto_install_allowed": false,
"human_review_required": true,
"blocked": true,
"recommended_action": "Do not auto-install. Inspect the source, dependencies, and permission surface first."
},
"quality": {
"score": 51,
"label": "Needs review"
},
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"scenario": "RAG and knowledge",
"maintenance": "2mo since push",
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},
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{
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"name": "mono-color",
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"High-risk permission hints: Shell or command execution, Secrets or environment access",
"Dependency or permission surface needs review",
"Permission surface may require sandboxing",
"Financial research output is not financial advice; require human review before any live investment decision"
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"Audit: 68/100 Needs review",
"Safety: 28/100 Avoid automatic install",
"Review repository, license, install command, and permission surface before production use."
],
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"install_command": "npx skills add selvarajmurugesan90/ops-engineering-skills --skill complete-ai-agent-stack-deployment-self-hosted-from-scratch",
"risk_summary": "Needs review; Blocked for auto-install; Review before production",
"verification_result": "Report the smallest successful task, files touched, warnings, and any missing setup."
}
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"method": "POST",
"requires_resolve_event_id": true,
"event_id_source": "Use install_receipt.outcome_feedback.event_id or feedback.event_id returned by /api/agent/resolve for the current task.",
"expected_outcomes": [
"success",
"failed",
"not_relevant",
"blocked_by_risk",
"setup_required"
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"skill_slug": "selvarajmurugesan90-complete-ai-agent-stack-deployment-self-hosted-from-scratch",
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"task_success": true,
"output_quality": 4,
"error_type": null,
"human_review_required": false,
"workspace": "sandbox",
"time_to_useful_ms": 120000,
"notes": "Report the smallest successful task, setup friction, files touched, and risk notes."
}
},
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"eval": "https://www.openagentskill.com/api/agent/evals?slug=selvarajmurugesan90-complete-ai-agent-stack-deployment-self-hosted-from-scratch&task=Use%20complete-ai-agent-stack-deployment-self-hosted-from-scratch%20in%20an%20agent%20workflow&max_risk=medium",
"resolve": "https://www.openagentskill.com/api/agent/resolve?task=Use%20complete-ai-agent-stack-deployment-self-hosted-from-scratch%20in%20an%20agent%20workflow&agent=codex&max_risk=medium",
"receipt": "https://www.openagentskill.com/api/agent/receipt?task=Use%20complete-ai-agent-stack-deployment-self-hosted-from-scratch%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text",
"install": "https://www.openagentskill.com/api/skills/selvarajmurugesan90-complete-ai-agent-stack-deployment-self-hosted-from-scratch/install",
"manifest": "https://www.openagentskill.com/api/registry/manifest/selvarajmurugesan90-complete-ai-agent-stack-deployment-self-hosted-from-scratch"
}
}Listing source
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Phase 4 — self-hosted vector database and RAG pipeline. Design the chunking/embedding/retrieval pattern per rag-pipeline-design, then deploy a self-hosted Weaviate or Milvus cluster per vector-database-operations-pinecone-weaviate-milvus's self-hosted guidance — sized, sharded, and replicated from the start:
# Milvus collection replication (self-hosted — no managed-service
# durability behind this unless explicitly configured)
collection: agent_knowledge_base
replica_number: 2 # survives one query-node loss without downtime
Unlike a managed vector database, replication, backup, and capacity planning here are entirely this team's responsibility — a single-replica self-hosted index has no vendor SLA behind it at all.
Phase 5 — self-hosted MCP servers. Build and deploy MCP servers for tool access per mcp-server-development, on network infrastructure segmented from the Phase 1/2 GPU serving cluster's internal network — an MCP server sharing an unsegmented network with the model-serving control plane gives a compromised tool call a much larger blast radius than the tool's documented scope suggests. Scope each server's backend credential to least privilege, independent of any broad credential the GPU cluster's own service accounts might otherwise have.
Phase 6 — evaluation harness and guardrails. Build the offline eval set and runtime guardrail layer per agent-evaluation-and-guardrails before Phase 2–5's full stack serves real traffic, including adversarial cases for RAG-content injection (Phase 4) and MCP-tool- output injection (Phase 5), exactly as on the cloud-managed path — the injection risk itself doesn't change because the model is self-hosted.
Phase 7 — cost and utilization monitoring. Unlike the cloud-
managed path's per-token provider billing, self-hosted cost is
dominated by GPU capital/amortized cost and utilization, not per-call
spend — apply the structural levers from
llm-cost-and-latency-optimization
(context trimming, batching, right-sized models per step) alongside
GPU utilization monitoring (DCGM_FI_DEV_GPU_UTIL) from the Phase 1
GPU infrastructure layer. A self-hosted GPU fleet sitting at 15%
utilization between bursty agent traffic can easily cost more in
amortized terms than the managed-API alternative would have — this
is a real total-cost-of-ownership comparison to make explicitly, not
an assumption that self-hosting is automatically cheaper.
Check the source for dependencies, API keys and third-party costs. A public repository does not mean every service is free.
Trust
59/100
Do not auto-install
Audit
68/100
Needs review
Copies are not installs. Installation counts require a reported successful installation; they are not a blanket quality guarantee.