Impermanent loss is invisible

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@abdulrahmanj383-creator 已经在做这个了。

开始于 2026年10月16日。

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描述

area:pricing difficulty:advanced epic:analytics help wanted points:200 Stellar Wave
Background

Fee APR alone is a half-truth that has cost liquidity providers real money across every chain. A pool paying 40% while its pair diverges 30% is a loss presented as a yield, and Lens holds the price history needed to say so.

What to build
  • Divergence loss per pool over a window, computed from the price history already stored.
  • Reported beside the fee APR from L141, never separately — the two numbers are only meaningful together.
  • A net figure, clearly labelled as an estimate with its assumptions stated.
Acceptance criteria
  • Divergence loss per pool over a window, from stored history
  • Always returned alongside fee APR, never alone
  • Assumptions stated in the response and the docs
  • A test against a hand-computed two-point example

Drips Wave · Complexity: Advanced · 200 points

Repo: Divinity-Labs/Lens. Node + Fastify + Prisma + Postgres. Tests are vitest (npm test), not jest — jest against this repo fails every file and tells you nothing.

?network= is not optional on a new route. Every row carries a network and the indexes lead with it. Read req.network ?? activeNetwork, filter on it, echo it in the response, and declare the parameter in openapi.yaml. tests/openapi.test.ts boots the server and fails if a registered route is missing from the spec.

A number without provenance is not an answer. Every figure this batch adds must carry what it was computed from: which venues, how many samples, how fresh. The point of Lens is that its numbers can be checked.

Never elide a contract id or an issuer. Take addresses from the protocol's own documentation and write them whole. A sibling repo's issue wrote CD2W5LUR…XZ4L and five contributors invented plausible contract ids to fill the gap.

Say when you cannot answer. An asset with no liquidity, a pair with one venue, a window with a gap — each has an honest answer that is not zero and not a 500. Zero is a number people act on.

Required: Before submitting, join the contributor Telegram so your work can be tracked and counted toward the Stellar Wave: https://t.me/+fxHXq8f1SwlkZDBk

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  4. 提交 Pull Request，并在描述里引用这个 Issue 编号。

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