ARP Conformance Toolkit arp-conformance

arp-conformance is the official conformance checker for ARP Standard (v1) HTTP services in the node-centric stack:

• Run Gateway
• Run Coordinator
• Atomic Executor
• Composite Executor
• Node Registry
• Selection
• PDP (optional component)

It runs black-box HTTP checks against a base URL and validates:

• Required routes exist and are reachable
• Success + error responses match the ARP envelopes (including ErrorEnvelope)
• Response bodies validate against the normative JSON Schemas embedded in this package

What it does not validate:

• Planner/model quality
• Performance, scalability, or security posture
• Internal implementation details (wire-level only)

This package is SDK-independent: it does not depend on generated SDK packages like arp-standard-model, arp-standard-client, or arp-standard-server.

[!IMPORTANT] Version pinning

This toolkit embeds a spec snapshot. Pin arp-conformance==X.Y.Z to validate services built against the same ARP spec / SDK version X.Y.Z.

View the embedded snapshot:

• arp-conformance --version
• python -c "import arp_conformance; print(arp_conformance.SPEC_REF)"

Install

python3 -m pip install arp-conformance

Quick start

Smoke test

Safest level of testing (GET-only).

arp-conformance check run-gateway --url http://localhost:8080 --tier smoke

Surface conformance

Validates required endpoints and envelope schemas without creating resources.

arp-conformance check run-gateway --url http://localhost:8080 --tier surface
arp-conformance check run-coordinator --url http://localhost:8081 --tier surface
arp-conformance check node-registry --url http://localhost:8082 --tier surface

Run conformance on multiple services

arp-conformance check all \
  --run-gateway-url http://localhost:8080 \
  --run-coordinator-url http://localhost:8081 \
  --node-registry-url http://localhost:8082 \
  --tier surface

Tiers at a glance

[!NOTE] For node-centric v1, core and deep are not yet defined. The toolkit reports SKIP for these tiers until the spec defines portable end-to-end flows. Use smoke and surface for now.

Output and reports

Example output (text)

service=run-gateway tier=surface spec=spec/v1@v0.3.7
counts={'PASS': 5, 'FAIL': 0, 'WARN': 0, 'SKIP': 0} ok=True
- PASS smoke.health: OK
- PASS smoke.version: OK

Export JSON / JUnit

arp-conformance check run-gateway --url http://localhost:8080 --tier surface --format json --out arp-conformance.json
arp-conformance check run-gateway --url http://localhost:8080 --tier surface --format junit --out arp-conformance.xml

CI gating

• By default, the CLI exits non-zero when there is at least one FAIL.
• Use --strict to also fail on WARN and SKIP.

Compatibility / pinning

Rule of thumb: pin arp-conformance==X.Y.Z to validate services targeting the ARP spec / SDK release X.Y.Z.

pipx install "arp-conformance==0.3.7"
arp-conformance --version
python -c "import arp_conformance; print(arp_conformance.SPEC_REF)"

Authentication and headers

If your service requires auth, pass headers:

arp-conformance check run-gateway \
  --url https://example.com \
  --tier surface \
  --headers "Authorization=Bearer ..."

For CI, prefer a headers file:

cat > headers.env <<'EOT'
Authorization=Bearer ...
EOT

arp-conformance check run-gateway --url https://example.com --tier surface --headers-file headers.env

CI recipes (GitHub Actions)

This repo provides a composite action that installs arp-conformance from PyPI and runs it:

• AgentRuntimeProtocol/ARP_Standard/.github/actions/arp-conformance

By default, when you reference the action as .../arp-conformance@vX.Y.Z, it installs arp-conformance==X.Y.Z.

Surface gate on PR (no resource creation)

name: arp-conformance
on: [pull_request]
jobs:
  surface:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      # Start your service under test (docker compose, process, etc) before running conformance.
      - uses: AgentRuntimeProtocol/ARP_Standard/.github/actions/arp-conformance@v0.3.7
        with:
          service: run-gateway
          url: http://localhost:8080
          tier: surface
          report_format: json
          report_path: arp-conformance.json

Commands at a glance

• arp-conformance check run-gateway --url <base-url> [flags]
• arp-conformance check run-coordinator --url <base-url> [flags]
• arp-conformance check atomic-executor --url <base-url> [flags]
• arp-conformance check composite-executor --url <base-url> [flags]
• arp-conformance check node-registry --url <base-url> [flags]
• arp-conformance check selection --url <base-url> [flags]
• arp-conformance check pdp --url <base-url> [flags]
• arp-conformance check all --run-gateway-url ... --run-coordinator-url ... [flags]

Flags (common)

• --tier smoke|surface|core|deep
• --headers KEY=VALUE (repeatable)
• --headers-file path
• --timeout <seconds>
• --retries <n>
• --strict
• --format text|json|junit
• --out <path>
• --spec v1
• --spec-path <path>