Quick start

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Prerequisites

• Node.js 22.x and pnpm 9 (Corepack selects the pinned version).
• No provider credentials are needed for the first simulated demo.

Enterprise customers should start with Shadow Phase A, which evaluates historical observations without external actions.

Choose your first experience

What you want to do	Path	Credentials needed
Experience multi-agent deliberation & quality gates	1. Simulated demo	None (in-memory simulation)
Review real Git diffs with LLM-as-a-judge	2. Provider read-only review	1 API Key (OpenAI / Anthropic / DeepSeek)
Test network response-loss recovery & idempotency	3. GitHub pilot offline tests	None (mocked offline harness)
Launch the visual control center	4. Local interfaces	None (pnpm gui starts local dev console)

1. Install and run the simulated demo

git clone https://github.com/PStarH/Praetor.git
cd Praetor
corepack enable
pnpm install --frozen-lockfile
pnpm build

pnpm exec tsx packages/core/src/cliEntry.ts --help
pnpm exec tsx packages/core/src/cliEntry.ts doctor --offline
pnpm demo:l4-a

doctor --offline checks local prerequisites without contacting a provider. demo:l4-a uses simulated in-memory dependencies and loopback servers: no provider call, no external write. The clone, install, and build still write to your checkout, dependency cache, and build output.

This path is development/demo evidence only. It is not a published-package install, an E1 governed-write proof, or evidence of production readiness.

2. Provider-backed read-only review (recommended first trial)

For your first real-provider test, use the bounded read-only code review rather than general autonomous execution. The model receives no execution tools, preventing unintended commands, file edits, or external writes:

# Choose one provider explicitly
export OPENAI_API_KEY=sk-...
pnpm exec tsx packages/core/src/cliEntry.ts review \
  --commit HEAD --real --provider=openai

This command reads the selected Git diff and local review guidelines, sends at most 15,000 diff characters to the selected provider, and caps the response at 4,000 tokens and 8 MiB. Transport aborts after 120 seconds. Read Security and privacy before sending repository material.

3. GitHub action pilot (governed writes & recovery)

To inspect the governed write lifecycle (propose → approve → inspect → recover) without external credentials, run the offline contract tests:

pnpm test:github:offline
pnpm demo:github --help

See the GitHub pilot guide for running against a configured Enterprise Gateway.

4. Local interfaces

Interface	Command	URL
Web console (dev)	pnpm gui	http://localhost:5173 (API on 4000)
Web console (Compose)	docker compose --profile web up	http://localhost:3000
API	any of the above	http://localhost:4000

pnpm gui starts the API and the Vite dev server from your checkout. In development the API defaults to SQLite and only warns about missing secrets; run it with a production environment and it instead requires a durable store plus JWT_SECRET and ADMIN_PASSWORD.

Grafana, when the observability profile is enabled, uses port 3001. It is not a Praetor API port.

Next steps

• CLI reference — every command and flag.
• HTTP API — endpoints, authentication, and the /v1 Gateway.
• Configuration — environment variables and storage backends.
• Deployment for local configuration and health checks.
• Security and privacy before connecting external systems.
• Support and limits for the current product boundary.