Inject an exogenous tick burst

A system verb, applied at the loop's now and recorded in the trace as its own kind, that injects a burst from outside the market. Two forms, one verb:

• A tick burst. N ticks arrive at once, shared over the running feeds by their rates, or aimed at an asset class or one feed. Each is a real tick: the feed steps its price and publishes, the heat rises by the jump, and a Hawkes feed's own intensity rises by its excitation. The burst then propagates by the laws already in place, so the market's response is the system's own and not a scripted one.
• A heat shock. The heat alone rises by a stated amount, with no tick published. Every feed's pace rises by the heat's share and decays at the heat's rate: the market's impulse response, with no price moving.

The Market screen offers both beside the force switch, as the review drew them (+25 and +100 ticks).

Gemini's review drew an Inject exogenous tick burst control with +25 ticks and +100 ticks shock. Today a tester who wants to see a panic either pins the market active, which holds a level rather than a spike, or waits for a burst to happen. An injected burst is the one input that shows what the jump, the decay and a Hawkes feed's branching ratio mean, and it is what a stress scenario starts from: news arrives, then the market reacts.

The tick burst touches more than the loop: a feed's body must take an injected tick as it takes a scheduled one, outside its law's draw, and the price steps by a gap of its own. The heat shock is cheap, because the heat is one number the loop already owns. Neither changes the loop gain, so both stay inside the stability rule.

• Gemini's review of the Market regime tab
• Run the market, prototype
• Tick arrival

• Carry a market-wide arrival regime — the story that built the market these extend.