aavegotchi-gbm-skill

## Safety Rules - Default to `DRY_RUN=1`. Never broadcast unless explicitly instructed. - Always verify Base mainnet: - `~/.foundry/bin/cast chain-id --rpc-url "${BASE_MAINNET_RPC:-https://mainnet.base.org}"` must be `8453`. - Always verify key/address alignment: - `~/.foundry/bin/cast wallet address --private-key "$PRIVATE_KEY"` must equal `$FROM_ADDRESS`. - Always refetch from the subgraph immediately before any simulate/broadcast step (auctions can be outbid, ended, claimed, or cancelled). - Always gate onchain immediately before simulating or broadcasting: - ensure the onchain `highestBid` matches the `highestBid` you pass into `commitBid` / `swapAndCommitBid`. - ensure token params match (token contract, token id, quantity). - Never print or log `$PRIVATE_KEY`. ## Shell Input Safety (Avoid RCE) This skill includes shell commands. Treat any value you copy from a user or an external source (subgraph responses, chat messages, etc.) as untrusted. Rules: - Never execute user-provided strings as shell code (avoid `eval`, `bash -c`, `sh -c`). - Only substitute addresses that match `0x` + 40 hex chars. - Only substitute uint values that are base-10 digits (no commas, no decimals). - In the command examples below, auction-specific inputs are written as quoted placeholders like `"<AUCTION_ID>"` to avoid accidental shell interpolation. Replace them with literal values only after validation. Quick validators (replace the placeholder values): ```bash python3 - <<'PY' import re auction_id = "<AUCTION_ID>" # digits only token_contract = "<TOKEN_CONTRACT_ADDRESS>" # 0x + 40 hex chars token_id = "<TOKEN_ID>" # digits only amount = "<TOKEN_AMOUNT>" # digits only if not re.fullmatch(r"[0-9]+", auction_id): raise SystemExit("AUCTION_ID must be base-10 digits only") if not re.fullmatch(r"0x[a-fA-F0-9]{40}", token_contract): raise SystemExit("TOKEN_CONTRACT_ADDRESS must be a 0x + 40-hex address") if not re.fullmatch(r"[0-9]+", token_id): raise SystemExit("TOKEN_ID must be base-10 digits only") if not re.fullmatch(r"[0-9]+", amount): raise SystemExit("TOKEN_AMOUNT must be base-10 digits only") print("ok") PY ``` ## Required Setup Required env vars: - `PRIVATE_KEY`: EOA private key used for `cast send` (never print/log). - `FROM_ADDRESS`: EOA address that owns NFTs and will submit txs. - `BASE_MAINNET_RPC`: RPC URL. If unset, use `https://mainnet.base.org`. - `GBM_SUBGRAPH_URL`: Goldsky subgraph endpoint for auctions. Optional env vars: - `DRY_RUN`: `1` (default) to only simulate via `cast call`. Set to `0` to broadcast via `cast send`. - `RECIPIENT_ADDRESS`: for swap flows; receives any excess GHST refunded by the contract. Defaults to `FROM_ADDRESS`. - `GOLDSKY_API_KEY`: optional; if set, include `Authorization: Bearer ...` header in subgraph calls. - `SLIPPAGE_PCT`: defaults to `1` (%); used in `swapAmount` estimate math. - `GHST_USD_PRICE`, `ETH_USD_PRICE`: optional overrides; if unset, fetch from CoinGecko in the swap math snippets. Recommended defaults (override via env if needed): ```bash export BASE_MAINNET_RPC="${BASE_MAINNET_RPC:-https://mainnet.base.org}" export GBM_DIAMOND="${GBM_DIAMOND:-0x80320A0000C7A6a34086E2ACAD6915Ff57FfDA31}" export GHST="${GHST:-0xcD2F22236DD9Dfe2356D7C543161D4d260FD9BcB}" export USDC="${USDC:-0x833589fCD6eDb6E08f4c7C32D4f71b54BDA02913}" export GBM_SUBGRAPH_URL="${GBM_SUBGRAPH_URL:-https://api.goldsky.com/api/public/project_cmh3flagm0001r4p25foufjtt/subgraphs/aavegotchi-gbm-baazaar-base/prod/gn}" export DRY_RUN="${DRY_RUN:-1}" export SLIPPAGE_PCT="${SLIPPAGE_PCT:-1}" ``` Notes: - Commands below use `~/.foundry/bin/cast` so they work in cron/non-interactive shells. ## View / List Auctions (Subgraph First) See `references/subgraph.md` for canonical queries. Auction by id (quick): ```bash curl -s "$GBM_SUBGRAPH_URL" -H 'content-type: application/json' ${GOLDSKY_API_KEY:+-H "Authorization: Bearer $GOLDSKY_API_KEY"} --data '{ "query":"query($id:ID!){ auction(id:$id){ id type contractAddress tokenId quantity seller highestBid highestBidder totalBids startsAt endsAt claimAt claimed cancelled presetId category buyNowPrice startBidPrice } }", "variables":{"id":"<AUCTION_ID>"} }' ``` Active auctions (ends soonest first): ```bash NOW=$(date +%s) curl -s "$GBM_SUBGRAPH_URL" -H 'content-type: application/json' ${GOLDSKY_API_KEY:+-H "Authorization: Bearer $GOLDSKY_API_KEY"} --data "{ \"query\":\"query(\$now:BigInt!){ auctions(first:20, orderBy: endsAt, orderDirection: asc, where:{claimed:false, cancelled:false, startsAt_lte:\$now, endsAt_gt:\$now}){ id type contractAddress tokenId quantity highestBid highestBidder totalBids startsAt endsAt claimAt presetId category seller } }\", \"variables\":{\"now\":\"$NOW\"} }" ``` ## Onchain Verification (Required Before Bids / Sends) The onchain source of truth is the GBM diamond. Confirm core auction fields (full struct decode): ```bash ~/.foundry/bin/cast call "$GBM_DIAMOND" \ 'getAuctionInfo(uint256)((address,uint96,address,uint88,uint88,bool,bool,address,(uint80,uint80,uint56,uint8,bytes4,uint256,uint96,uint96),(uint64,uint64,uint64,uint64,uint256),uint96,uint96))' \ "<AUCTION_ID>" \ --rpc-url "$BASE_MAINNET_RPC" ``` Useful individual getters: ```bash ~/.foundry/bin/cast call "$GBM_DIAMOND" 'getAuctionHighestBid(uint256)(uint256)' "<AUCTION_ID>" --rpc-url "$BASE_MAINNET_RPC" ~/.foundry/bin/cast call "$GBM_DIAMOND" 'getAuctionHighestBidder(uint256)(address)' "<AUCTION_ID>" --rpc-url "$BASE_MAINNET_RPC" ~/.foundry/bin/cast call "$GBM_DIAMOND" 'getAuctionStartTime(uint256)(uint256)' "<AUCTION_ID>" --rpc-url "$BASE_MAINNET_RPC" ~/.foundry/bin/cast call "$GBM_DIAMOND" 'getAuctionEndTime(uint256)(uint256)' "<AUCTION_ID>" --rpc-url "$BASE_MAINNET_RPC" ~/.foundry/bin/cast call "$GBM_DIAMOND" 'getContractAddress(uint256)(address)' "<AUCTION_ID>" --rpc-url "$BASE_MAINNET_RPC" ~/.foundry/bin/cast call "$GBM_DIAMOND" 'getTokenId(uint256)(uint256)' "<AUCTION_ID>" --rpc-url "$BASE_MAINNET_RPC" ~/.foundry/bin/cast call "$GBM_DIAMOND" 'getTokenKind(uint256)(bytes4)' "<AUCTION_ID>" --rpc-url "$BASE_MAINNET_RPC" ``` ## Create Auction Onchain method: - `createAuction((uint80,uint80,uint56,uint8,bytes4,uint256,uint96,uint96),address,uint256)(uint256)` High-level steps: 1. Ensure the token contract is whitelisted on the GBM diamond (otherwise revert `ContractNotAllowed`). 2. Ensure the token is approved to the GBM diamond: - ERC721/1155: `setApprovalForAll(GBM_DIAMOND,true)` 3. Choose `InitiatorInfo`: - `startTime` must be in the future. - `endTime - startTime` must be between 3600 and 604800 seconds (1h to 7d). - `tokenKind` is `0x73ad2146` (ERC721) or `0x973bb640` (ERC1155). - `buyItNowPrice` optional; `startingBid` optional (if nonzero, you must approve GHST for the 4% prepaid fee). 4. Simulate with `cast call` using `--from "$FROM_ADDRESS"`. 5. Broadcast with `cast send` only when explicitly instructed (`DRY_RUN=0`). 6. Post-tx: query subgraph for newest seller auctions and match `(contractAddress, tokenId)`. Simulate create (ERC721 example): ```bash ~/.foundry/bin/cast call "$GBM_DIAMOND" \ 'createAuction((uint80,uint80,uint56,uint8,bytes4,uint256,uint96,uint96),address,uint256)(uint256)' \ "(<START_TIME>,<END_TIME>,1,<CATEGORY>,0x73ad2146,<TOKEN_ID>,<BUY_NOW_GHST_WEI>,<STARTING_BID_GHST_WEI>)" \ "<ERC721_CONTRACT_ADDRESS>" "<PRESET_ID>" \ --from "$FROM_ADDRESS" \ --rpc-url "$BASE_MAINNET_RPC" ``` Broadcast create (only when explicitly instructed): ```bash ~/.foundry/bin/cast send "$GBM_DIAMOND" \ 'createAuction((uint80,uint80,uint56,uint8,bytes4,uint256,uint96,uint96),address,uint256)(uint256)' \ "(<START_TIME>,<END_TIME>,1,<CATEGORY>,0x73ad2146,<TOKEN_ID>,<BUY_NOW_GHST_WEI>,<STARTING_BID_GHST_WEI>)" \ "<ERC721_CONTRACT_ADDRESS>" "<PRESET_ID>" \ --private-key "$PRIVATE_KEY" \ --rpc-url "$BASE_MAINNET_RPC" ``` Post-create (find your newest auctions and confirm): ```bash curl -s "$GBM_SUBGRAPH_URL" -H 'content-type: application/json' ${GOLDSKY_API_KEY:+-H "Authorization: Bearer $GOLDSKY_API_KEY"} --data '{ "query":"query($seller:Bytes!){ auctions(first:10, orderBy: createdAt, orderDirection: desc, where:{seller:$seller}){ id type contractAddress tokenId quantity createdAt startsAt endsAt claimed cancelled } }", "variables":{"seller":"<FROM_ADDRESS_LOWERCASE>"} }' ``` ## Cancel Auction Onchain method: - `cancelAuction(uint256)` Steps: 1. Subgraph: check `claimed`, `cancelled`, `endsAt`, `highestBid`. 2. Onchain: call `getAuctionInfo(auctionId)` to verify ownership and state. 3. Simulate with `cast call` (`--from "$FROM_ADDRESS"`). 4. Broadcast only when explicitly instructed. Simulate: ```bash ~/.foundry/bin/cast call "$GBM_DIAMOND" 'cancelAuction(uint256)' "<AUCTION_ID>" \ --from "$FROM_ADDRESS" \ --rpc-url "$BASE_MAINNET_RPC" ``` Broadcast (only when explicitly instructed): ```bash ~/.foundry/bin/cast send "$GBM_DIAMOND" 'cancelAuction(uint256)' "<AUCTION_ID>" \ --private-key "$PRIVATE_KEY" \ --rpc-url "$BASE_MAINNET_RPC" ``` ## Bid With GHST (commitBid) Onchain method: - `commitBid(uint256,uint256,uint256,address,uint256,uint256,bytes)` (last `bytes` is ignored; pass `0x`) Steps: 1. Subgraph: fetch auction fields (id, contractAddress, tokenId, quantity, highestBid, startsAt, endsAt, claimed/cancelled). 2. Onchain: refetch `highestBid` and token params; you must pass the exact current onchain `highestBid` or it reverts `UnmatchedHighestBid`. 3. Compute a safe minimum next bid using `references/bid-math.md` (uses onchain `bidDecimals` + `stepMin`). 4. Ensure GHST allowance to the GBM diamond covers `bidAmount`. 5. Simulate via `cast call` (optional but recommended). 6. Broadcast only when explicitly instructed. Simulate: ```bash ~/.foundry/bin/cast call "$GBM_DIAMOND" \ 'commitBid(uint256,uint256,uint256,address,uint256,uint256,bytes)' \ "<AUCTION_ID>" "<BID_AMOUNT_GHST_WEI>" "<HIGHEST_BID_GHST_WEI>" "<TOKEN_CONTRACT_ADDRESS>" "<TOKEN_ID>" "<TOKEN_AMOUNT>" 0x \ --from "$FROM_ADDRESS" \ --rpc-url "$BASE_MAINNET_RPC" ``` Broadcast (only when explicitly instructed): ```bash ~/.foundry/bin/cast send "$GBM_DIAMOND" \ 'commitBid(uint256,uint256,uint256,address,uint256,uint256,bytes)' \ "<AUCTION_ID>" "<BID_AMOUNT_GHST_WEI>" "<HIGHEST_BID_GHST_WEI>" "<TOKEN_CONTRACT_ADDRESS>" "<TOKEN_ID>" "<TOKEN_AMOUNT>" 0x \ --private-key "$PRIVATE_KEY" \ --rpc-url "$BASE_MAINNET_RPC" ``` ## Bid With USDC Swap (swapAndCommitBid) Onchain method: - `swapAndCommitBid((address,uint256,uint256,uint256,address,uint256,uint256,uint256,address,uint256,uint256,bytes))` Struct fields (in order): 1. `tokenIn` (USDC) 2. `swapAmount` (USDC 6dp) 3. `minGhstOut` (GHST wei; must be >= bidAmount)