Add per-item market price distributions from trade history #198

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opened 2026-08-01 17:27:18 +00:00 by coilyco-ops · 0 comments

coilyco-ops commented

2026-08-01 17:27:18 +00:00

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What to build

Extend the item-focused pricing view with a historical unit-price distribution for the selected item and currency. Reuse the existing read-only trade ledger and market evidence so players can see how prices are distributed over a bounded period without presenting one universal or mandatory price.

Acceptance criteria

A player can select an item and currency and see the distribution of observed unit prices over a clearly named time window.
The presentation includes sample count, freshness, median, range, and enough bucket or percentile detail to distinguish a cluster from outliers.
No-data, thin-data, stale-data, and multimodal results have explicit degraded states and do not render a misleading normal curve.
The distribution is integrated into the existing item-pricing explanation rather than creating a parallel pricing workflow.
API and component tests cover representative, sparse, empty, and outlier-heavy histories.

Blocked by

None - can start immediately.

Builds on #177.

Source

Sirens Discord, general-suggestions forum: "Use discord link history to create pricing bell curves for each item." Public-safe synthesis, reviewed 2026-08-01.

## What to build Extend the item-focused pricing view with a historical unit-price distribution for the selected item and currency. Reuse the existing read-only trade ledger and market evidence so players can see how prices are distributed over a bounded period without presenting one universal or mandatory price. ## Acceptance criteria - [ ] A player can select an item and currency and see the distribution of observed unit prices over a clearly named time window. - [ ] The presentation includes sample count, freshness, median, range, and enough bucket or percentile detail to distinguish a cluster from outliers. - [ ] No-data, thin-data, stale-data, and multimodal results have explicit degraded states and do not render a misleading normal curve. - [ ] The distribution is integrated into the existing item-pricing explanation rather than creating a parallel pricing workflow. - [ ] API and component tests cover representative, sparse, empty, and outlier-heavy histories. ## Blocked by None - can start immediately. ## Related Builds on #177. ## Source Sirens Discord, `general-suggestions` forum: "Use discord link history to create pricing bell curves for each item." Public-safe synthesis, reviewed 2026-08-01.

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~~coilyco-ops referenced this issue from coilyco-gaming/.github 2026-08-01 17:28:24 +00:00~~

Define the gaming-wide portfolio triage pattern #3

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2026-08-01 18:01:02 +00:00

Overlay relevant specialty unlocks on item price history #199

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