`set_stop_loss_rule`

Let a position's stop follow the price · idempotent · scopes: positions:close

Make a held position's stop-loss move by itself, only ever toward the price: trailing (it follows the best price at trail_pct behind it) or breakeven (it moves to the entry once the price reaches activate_at). TradeHub checks about every 5 seconds; each move follows tighten_stop_loss's rules and is audited. Use to lock in profit on a winning position. One rule per position: a new one replaces it, kind=none removes it, it ends when the position closes. Not for a one-off move (use tighten_stop_loss). Next: get_my_open_positions shows the rule.

Call it

MCP tools/call

{"name": "set_stop_loss_rule", "arguments": {"symbol": "BTC", "kind": "trailing"}}

REST

PUT /v1/positions/{symbol}/stop-rule
{"symbol": "BTC", "kind": "trailing"}

Inputs

Name	Meaning (* required)
`symbol` *	Base coin, e.g. BTC
`kind` *	trailing: the stop follows the best price at trail_pct behind it; breakeven: the stop moves to the entry once the price reaches activate_at; none: remove the rule
`trail_pct`	trailing only: distance behind the best price as a fraction, 0.001-0.2 (0.02 = 2%)
`activate_at`	Price, USD per coin, from which the rule acts; required for breakeven (beyond the entry on the profit side), optional for trailing
`venue`	Venue: sandbox, hyperliquid, okx, bybit or binance. Omitted: the agent's only venue, else hyperliquid, else your only connected venue, else sandbox

Returns

Field	Meaning and unit
`ok`	True when the rule is stored
`venue`	Venue name
`symbol`	Base coin
`rule`	The rule now following the position; null after kind=none

Rejections: error codes, each with what to do.