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Add monitoring for yvUSD vault covering: - APY inversion detection (unlocked > locked for extended periods) - Negative strategy APR alerts - CCTP cross-chain strategy staleness detection - Flashloan liquidity checks for Morpho looper unwinding - Large LockedyvUSD cooldown request detection Closes #193 Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Move yvusd monitoring into yearn/ to match project conventions: - yearn/yvusd.py (was yvusd/main.py) - yearn/abi/ for contract ABIs Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
spalen0
commented
Apr 22, 2026
spalen0
commented
Apr 22, 2026
spalen0
commented
Apr 22, 2026
… kwargs - Remote cross-chain "vaults" (0x78b7…, 0xBCf0…) are V3 tokenized strategies and revert on strategies(); switch to direct lastReport() / totalAssets() calls and surface a MEDIUM alert on lookup failure instead of silently disabling the CCTP health check. - Flashloan liquidity check now picks up cross-chain wrappers whose remote_vault_type is a looper (borrower = remote_vault on the remote chain) and runs per-chain via LOOPER_CHAIN_CONFIG (mainnet + Arbitrum). - events.CooldownStarted.get_logs now uses snake_case from_block / to_block for web3 7.x; camelCase raised TypeError and silently returned. - Add morpho/abi/morpho_blue.json — the previous shared-abi refactor pointed ABI_MORPHO at the MetaMorpho vault ABI, which lacks market()/position() and would have raised ABIFunctionNotFound. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
…on cooldown RPC failure
- Skip CCTP staleness + cross-chain flashloan checks when PROVIDER_URL_{CHAIN}
is not set (one-shot MEDIUM alert per chain via dedup flag) so the live
Katana yvUSDC Compounder ($2.22M) doesn't trip "Remote Lookup Failed"
every hourly run when no Katana RPC is configured.
- Surface MEDIUM alert when CooldownStarted get_logs fails so an extended
RPC outage doesn't silently mute large-cooldown monitoring; flag clears
automatically on next successful fetch.
- Debounce negative-APR and flashloan-liquidity alerts per-strategy /
per-(chain, borrower) to stop alert spam while a condition persists;
flags clear on recovery so a re-occurrence will alert again.
- Rename cache file from generic cache-id.txt to cache-yvusd.txt.
- Use local_chain.network_name in CCTP alert summary instead of literal
"Mainnet" for consistency with the remote-side line.
Tests cover: RPC-gap one-shot alert + dedup, cooldown failure alert +
dedup, negative-APR alert/dedup/recovery, flashloan alert/dedup. 17 tests,
all pass.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…restores it The hourly workflow caches only cache-id.txt. yvUSD was writing to cache-yvusd.txt, so the APY-inversion 6-hour timer, dedup flags, RPC-missing flag, cooldown-failure flag, and last scanned block would reset every run — the 6h threshold could never be reached and persistent conditions would re-alert hourly. Match the shared-cache convention used by maple, ustb, 3jane, timelock, morpho, and yearn/alert_large_flows (all run in the same hourly job). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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Summary
lastReporttimestamps on both mainnet and the remote chain, alerts on staleness (>48h) or skew (>6h). Bridge-agnostic — works for CCTP (Arbitrum) and the Katana yvUSDC Compounder ($2.5M debt) alike. Gracefully skips with a one-shot alert whenPROVIDER_URL_{CHAIN}isn't configured, so the live Katana strategy doesn't trip "Remote Lookup Failed" every run.CooldownStartedevents on LockedyvUSD, alerts on >$100K requests. Surfaces a MEDIUM alert on extendedget_logsRPC failure so outages don't silently mute the monitor.Strategy discovery
Looper and cross-chain strategies are discovered dynamically from the yvUSD APR API, so no hardcoded strategy list to maintain. Chains are resolved generically via
Chain.from_chain_id, so new cross-chain strategies on already-configured chains require no code changes.Contract ABIs
Minimal ABIs for:
strategies(),totalAssets())market(),position())CooldownStartedevent,getCooldownStatus(),totalSupply())lastReport(),totalAssets()— used for remote-side bridge health checks)State persistence
All state (APY-inversion timer, dedup flags, last scanned block) is keyed under
YVUSD_*in the sharedcache-id.txtfile that the hourly workflow already restores/saves — same convention as maple, ustb, 3jane, timelock, morpho, and yearn/alert_large_flows.Test plan
yvusd-api.yearn.fi/api/aprslastReport()/totalAssets()calls succeed on Arbitrum (0x78b7…,0xBCf0…)Chain.KATANAfor the staleness checkget_logssnake-case kwargs work on web3 7.xcache_file: cache-id.txtso state actually persists across runs🤖 Generated with Claude Code