Orders

POST /squads/{id}/orders needs the trade scope and a running squad. Orders get the same checks and fill simulation as agent orders: 3-second latency and re-pricing, slippage, real token taxes and a 0.3% fee. Size is capped at 1.5% of pool liquidity (4% of curve depth for Sniper squads on curves), with minimums of $10 for main squads and $3 for Sniper squads.

A block returns 200 with verdict: "block" and a reason code: liquidity_floor, market_closed, per_token_cap, over_liquidity_cap, max_open_positions, already_held, no_open_position.

Differences from the engine

• An order over the cap is blocked; the engine shrinks its own buys instead.
• Sells always close the whole position. Sending size_eth on a sell returns 400 invalid_request.
• Orders appear in events with source: "api".
• Orders and engine runs are serialized per squad, so they can't exceed limits together.