How horrorstock.exchange works: a high-level overview for newcomers. Dated 09/25/26. How horrorstock.exchange works. High-level BPMN 2.0 overview, dated 09/25/26. Legend Blue: what the visitor does Green: the website answering visitors Purple: scheduled jobs on the server Orange: a step that uses AI Red: error handling Grey: outside services Thin circle = start. Thick circle = end. Clock = runs on a timer. Envelope = a message arrives or is sent. Rounded box = a step. Diamond = a yes or no decision. Cylinder = the database. Solid arrow = the order of steps. Dashed arrow = a message between participants. Dotted arrow = data read or saved. In plain words: on a timer, two sets of jobs collect horror chatter from outside sites. One uses AI to score the mood of new headlines, then updates the ticker prices and the HXI index. The other uses AI to screen out items that are not about horror. Everything is saved in the site's own database. When you open a page, the site reads that saved data, so pages load fast and do not wait on outside sites. Ask The Exchange answers questions with AI from the same saved data, and page text can be translated by AI on request. Outside AI tools can read the saved data through a read-only connection (MCP). If something breaks, a bug ticket is filed automatically. F_V1 F_V1F_V2 F_V2F_V3 F_V3F_V4F_V5 F_V4F_V6 F_V5F_V6F_V7 F_V7 W_Start W_Read W_Gw W_Send W_EndOk W_QStart W_Answer W_AEnd W_Bug W_EndErr J_TimerA J_CollectA J_MoodA J_PriceA J_SaveA J_EndA J_TimerB J_CollectB J_ScreenB J_SaveB J_EndB F_W1 F_W1F_W2DS_DbW_Read_Prop F_W2F_W3F_W5 F_W3F_W4 F_W4 F_W7 F_W7F_W8 F_W8 F_W5F_W6 F_W6 F_A1R/PT15M F_A1F_A2 F_A2F_A3 F_A3F_A4 F_A4F_A5DS_Db F_A5 F_B1R/PT5M F_B1F_B2 F_B2F_B3 F_B3F_B4DS_Db F_B4