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HELM AI Kernel

Developer Journey

Open-source execution kernel, CLI, MCP, conformance, verification, and compatibility.
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This page is the source-backed end-to-end path for evaluating HELM AI Kernel. It ties install, runtime, SDKs, policy, receipts, verification, deployment, conformance, release artifacts, and troubleshooting to live repository surfaces.

Audience

This journey is for developers and platform teams evaluating HELM AI Kernel beyond the first quickstart. It is the source-backed path for proving local runtime behavior, SDK calls, receipts, EvidencePack verification, conformance, deployment, and release verification.

Outcome

After completing the path you should know which local command owns each public claim, how to route OpenAI-compatible and MCP traffic through the execution boundary, how to inspect receipts, and which validation commands keep docs aligned with code.

Diagram1. Ingestion & Context Plane -> install or build helm-ai-kernel -> optional helm-ai-kernel proxy -> 2. Evaluation & Policy Plane -> helm-ai-kernel serve --policy -> docs and conformance gates -> 4. Tamper-Evident Ledger Plane -> local proof demo
flowchart TD
    subgraph Ingestion["1. Ingestion & Context Plane"]
        Install["install or build helm-ai-kernel"]
        Proxy["optional helm-ai-kernel proxy"]
    end

    subgraph Evaluation["2. Evaluation & Policy Plane"]
        Serve["helm-ai-kernel serve --policy"]
        Gates["docs and conformance gates"]
    end

    subgraph Ledger["4. Tamper-Evident Ledger Plane"]
        Demo["local proof demo"]
        Receipts["receipts and boundary records"]
        Verify["offline verification"]
    end

    %% Operational Flow Edges
    Install --> Serve
    Serve --> Demo
    Serve --> Proxy
    Serve --> Receipts
    Receipts --> Verify
    Verify --> Gates

    %% Premium Styling Rules
    style Serve fill:#2d3748,stroke:#4a5568,stroke-width:2px,color:#fff
    style Demo fill:#2f855a,stroke:#276749,stroke-width:2px,color:#fff
    style Receipts fill:#2f855a,stroke:#276749,stroke-width:2px,color:#fff
    style Verify fill:#2f855a,stroke:#276749,stroke-width:2px,color:#fff
    style Gates fill:#2d3748,stroke:#4a5568,stroke-width:2px,color:#fff
Mermaid source
flowchart TD
    subgraph Ingestion["1. Ingestion & Context Plane"]
        Install["install or build helm-ai-kernel"]
        Proxy["optional helm-ai-kernel proxy"]
    end

    subgraph Evaluation["2. Evaluation & Policy Plane"]
        Serve["helm-ai-kernel serve --policy"]
        Gates["docs and conformance gates"]
    end

    subgraph Ledger["4. Tamper-Evident Ledger Plane"]
        Demo["local proof demo"]
        Receipts["receipts and boundary records"]
        Verify["offline verification"]
    end

    %% Operational Flow Edges
    Install --> Serve
    Serve --> Demo
    Serve --> Proxy
    Serve --> Receipts
    Receipts --> Verify
    Verify --> Gates

    %% Premium Styling Rules
    style Serve fill:#2d3748,stroke:#4a5568,stroke-width:2px,color:#fff
    style Demo fill:#2f855a,stroke:#276749,stroke-width:2px,color:#fff
    style Receipts fill:#2f855a,stroke:#276749,stroke-width:2px,color:#fff
    style Verify fill:#2f855a,stroke:#276749,stroke-width:2px,color:#fff
    style Gates fill:#2d3748,stroke:#4a5568,stroke-width:2px,color:#fff

Source Truth

  • Makefile, Dockerfile, docker-compose.yml
  • core/cmd/helm-ai-kernel/*
  • api/openapi/helm.openapi.yaml
  • docs/reference/cli.md
  • docs/reference/http-api.md
  • docs/reference/execution-boundary.md
  • sdk/go, sdk/python, sdk/ts, sdk/rust, sdk/java
  • examples/, deploy/helm-chart/, tests/conformance/
  • scripts/check_documentation_coverage.py
  • scripts/check_documentation_truth.py

Install

Use one of these current paths. The published Homebrew path is the macOS path; source builds and Docker remain the portable paths for Linux and WSL.

macOS

brew install mindburnlabs/tap/helm-ai-kernel
helm-ai-kernel --version
brew install mindburnlabs/tap/helm-ai-kernel
helm-ai-kernel --version
git clone https://github.com/Mindburn-Labs/helm-ai-kernel.git
cd helm-ai-kernel
make build
./bin/helm-ai-kernel --version
docker build -t ghcr.io/mindburn-labs/helm-ai-kernel:local .
docker compose up -d

Docker Compose exposes the service on its compose-configured port. The local source quickstart uses helm-ai-kernel serve on 127.0.0.1:7714.

First Local Boundary

./bin/helm-ai-kernel serve --policy ./release.high_risk.v3.toml

Expected ready line:

helm-edge-local - listening :7714 - ready

Open the self-hostable Console by adding --console:

make build-console
./bin/helm-ai-kernel serve --policy ./release.high_risk.v3.toml --console

First Proof

Run, verify, and tamper-check a local receipt:

curl http://127.0.0.1:7714/api/demo/run \
  -H 'content-type: application/json' \
  -d '{"action_id":"export_customer_list","policy_id":"agent_tool_call_boundary"}'
curl http://127.0.0.1:7714/api/demo/verify \
  -H 'content-type: application/json' \
  -d '{"receipt":{...},"expected_receipt_hash":"<receipt_hash>"}'
curl http://127.0.0.1:7714/api/demo/tamper \
  -H 'content-type: application/json' \
  -d '{"receipt":{...},"expected_receipt_hash":"<receipt_hash>","mutation":"flip_verdict"}'

Optional OpenAI-Compatible Proxy

Use the proxy when the application already supports an OpenAI-compatible base_url or baseURL.

python3 scripts/launch/mock-openai-upstream.py --port 19090
./bin/helm-ai-kernel proxy --upstream http://127.0.0.1:19090/v1 --port 9090 --receipts-dir ./helm-receipts

Configure the client base URL as:

http://localhost:9090/v1

The example directories named *_openai_baseurl currently exercise HELM HTTP or SDK clients. They are not evidence that the OpenAI SDK examples are runnable unless their code imports the OpenAI SDK and reads the documented base URL variable.

OpenAI-Compatible Proxy

Use the OpenAI-compatible proxy path when an application already supports an OpenAI-compatible base_url or baseURL. Keep HELM on http://localhost:9090/v1 and keep the provider or fixture upstream behind the proxy.

Receipts And Boundary Records

HELM AI Kernel is useful only when both allowed and denied outcomes are recorded.

./bin/helm-ai-kernel receipts tail --agent agent.demo.exec --server http://127.0.0.1:7714
curl 'http://127.0.0.1:7714/api/v1/receipts?limit=20'
./bin/helm-ai-kernel boundary records --json

The CLI receipt tail requires --agent; the HTTP list route is the unfiltered inspection path.

Policy Fixtures

Launch Demo Suite: You can evaluate a complete, end-to-end set of ALLOW, DENY, and ESCALATE outcomes using the canonical launch suite in examples/launch/. Run make launch-smoke to verify policy execution, receipt proof generation, MCP quarantine behavior, and localhost-only proxy behavior.

SDK Examples: Run make sdk-examples-smoke to build the Python and TypeScript SDKs, start a local boundary, and validate ALLOW, DENY, MCP fail-closed denial, signed receipt verification, sandbox preflight, and EvidencePack verification.

Use allow and deny fixtures from examples/policies/ when validating policy-language behavior. The policy bundle command supports CEL, Rego, and Cedar:

./bin/helm-ai-kernel bundle build --language cel examples/policies/cel/example.cel
./bin/helm-ai-kernel bundle build --language rego examples/policies/rego/example.rego
./bin/helm-ai-kernel bundle build --language cedar --entities examples/policies/cedar/entities.json examples/policies/cedar/example.cedar

helm-ai-kernel bundle build takes the policy source as the positional argument. It does not accept --policy; that flag belongs to helm-ai-kernel serve.

EvidencePack Verification

Run offline verification first:

./bin/helm-ai-kernel verify evidence-pack.tar
./bin/helm-ai-kernel verify evidence-pack.tar --json

Run online verification only after offline verification passes:

./bin/helm-ai-kernel verify evidence-pack.tar --online

--online checks envelope or root metadata against HELM_LEDGER_URL or the public proof verifier. Online checks are additive and do not replace offline receipt and ProofGraph verification.

SDKs

Language Public package status Validation
Python pip install helm-sdk make test-sdk-py
TypeScript / JavaScript npm install @mindburn/helm-ai-kernel make test-sdk-ts
Rust cargo add helm-sdk make test-sdk-rust
Go source/module path github.com/Mindburn-Labs/helm-ai-kernel/sdk/go; pin @main or a commit until tagged module releases are aligned cd sdk/go && go test ./...
Java Maven Central coordinate io.github.mindburnlabs:helm-sdk:0.5.2 make test-sdk-java

Use SDK Index before publishing SDK install instructions.

Python

Use pip install helm-sdk for the public Python package path and validate with make test-sdk-py before changing Python SDK examples.

MCP

Use MCP when the integration is tool-oriented and the client expects an MCP server, client config, or MCP bundle:

./bin/helm-ai-kernel mcp serve
./bin/helm-ai-kernel mcp pack --client claude-desktop --out helm-ai-kernel.mcpb
./bin/helm-ai-kernel mcp install --client claude-code

Unknown MCP servers and tools start in quarantine. They must be inspected and approved before side effects are dispatched.

Deployment

Use Docker Compose for local deployment checks:

docker compose up -d
docker compose ps

Use the Kubernetes Helm chart only with a Kubernetes Helm v3 binary:

helm lint deploy/helm-chart
helm install helm-ai-kernel deploy/helm-chart

If the helm command on your machine resolves to this HELM AI Kernel binary, use KUBE_HELM_CMD or a pinned containerized chart runner instead.

Release And Conformance Gates

Current source release target: v0.5.6: https://github.com/Mindburn-Labs/helm-ai-kernel/releases/tag/v0.5.6.

The release is complete only after the release page includes Darwin/Linux/Windows binaries, SHA256SUMS.txt, sbom.json, v0.5.6.openvex.json, release-attestation.json, evidence-pack.tar, release.high_risk.v3.toml, sample-policy-material.tar, helm-ai-kernel-launchpad-data.tar, helm-ai-kernel.mcpb, helm-ai-kernel.rb, v0.5.6.json, version-status.json, and matching *.cosign.bundle files for each primary asset.

Run conformance and docs gates:

cd tests/conformance && go test ./...
cd ../..
make docs-coverage
make docs-truth

Run release checks when release docs or packaging behavior changes:

make test
make test-console
make test-platform
make test-all
make crucible
make launch-smoke
make launch-ready
make verify-fixtures
make release-assets

Troubleshooting

Symptom Likely cause First check
helm-ai-kernel serve starts but clients still bypass HELM client base URL still points to upstream provider log request host and set the client base URL to HELM
no receipts appear wrong server, directory, or agent id run helm-ai-kernel receipts tail --agent <id> --server http://127.0.0.1:7714 or query /api/v1/receipts
denied call retries forever app treats policy denial as transient handle DENY as a final authorization result
offline verification fails EvidencePack is incomplete or modified verify a complete pack and run make verify-fixtures
MCP call fails with OAuth scope error token lacks required scope or resource indicator inspect HELM_OAUTH_RESOURCE and HELM_OAUTH_SCOPES
chart deploy fails wrong Helm binary or invalid values use Kubernetes Helm v3 and run helm lint deploy/helm-chart