Quickstart
userreadiness checkCoil your first playbook in about 60 seconds — whisper in, verified Coil out.
What HISS is
HISS turns market whispers into Coils: structured, versioned trading playbooks with binding risk fuses — and compiles verified Coils into Execution Capsules your own agent can replay against Robinhood’s official Trading MCP. Everything defaults to a readiness check: HISS holds no credentials, sends no orders, and every artifact carries a verifiable receipt. The full product model is in CoilOps.
Coil your first playbook in 60 seconds
- Whisper. Go to Create and paste a market take — e.g.
AI infra without full NVDA concentration. Prompt patterns: Create a Hiss. - Review the Coil. HISS structures the whisper into a manifest: holdings from the canonical registry, weights in basis points (always summing to 10,000), a rationale per asset, a rebalance policy, and a default set of risk fuses. Adjust anything; validation is deterministic.
- Check Coil Health. Every Coil gets a Coil Health score (structure and readiness, never a prediction) across nine components — clarity, fuse coverage, tradability, and more.
- Compile. One pass produces the runbook, the fuse checklist, the share card, and the receipt. Coils in other execution modes also compile an Execution Capsule — a bounded instruction bundle for your own MCP agent.
- Share or run. Publish the Coil and post the card, or hand the capsule to your agent on Robinhood’s Trading MCP — simulate-first, with per-order confirmation by default.
Working from an agent instead?
The same pipeline is machine-callable: the tools API over HTTP, or the HISS MCP server in Claude Code, Codex, Cursor, or any MCP client. Both are free in the current build.
What the readiness check means
The readiness check (internal mode value paper_only) is the default execution mode of every new Coil. All prices come from a deterministic reference oracle (never live market data), all analysis is simulation, and a readiness-mode Coil refuses to compile a capsule at all. A Coil is a research artifact — a published thesis with receipts — not a position.
Disabled by default
- Live on-chain execution — off, and stays off until price feed proxies are pinned and contracts are audited.
- Vault deposits — off (unaudited).
- x402 paid endpoints — the API answers for free with mock-labeled envelopes; see x402 payments and x402 Cloud.
- Agentic capsule mode —
agentic_mcp_enabledrequires an explicit user acknowledgment at compile time; a mode string alone never unlocks it. See Modes & flags.