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aavegotchi-gbm-skill

View, create, cancel, bid, and claim Aavegotchi GBM auctions on Base mainnet (8453).

Skill by LeoYeAI

IndexedMIT★ 2,168
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Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/leoyeai-aavegotchi-gbm-skill

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About

View, create, cancel, bid, and claim Aavegotchi GBM auctions on Base mainnet (8453). Subgraph-first discovery (Goldsky), with onchain verification + execution via Foundry cast. Safety-first: DRY_RUN defaults to 1 (simulate with cast call; only broadcast with cast send when DRY_RUN=0 and explicitly instructed).

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Permissions

What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
No tools found
Secrets
None asked for
Install scripts
None found

Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/aavegotchi-gbm-skill

What's inside

Skill name
aavegotchi-gbm-skill
Description
View, create, cancel, bid, and claim Aavegotchi GBM auctions on Base mainnet (8453). Subgraph-first discovery (Goldsky), with onchain verification + execution via Foundry cast. Safety-first: DRY_RUN defaults to 1 (simulate with cast call; only broadcast with cast send when DRY_RUN=0 and explicitly instructed).
License
MIT
Instructions
348 lines in SKILL.md · view on GitHub

Before installing

  • Instructions call the network

Files (9)

  • SKILL.md
  • _meta.json
  • addresses.md · references/
  • bid-math.md · references/
  • logs.md · references/
  • presets.md · references/
  • recipes.md · references/
  • subgraph.md · references/
  • swap-math.md · references/

SKILL.md (first lines)

## 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"
```

From LeoYeAI/openclaw-master-skills, MIT.

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Stars
2,168
Forks
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Open issues
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Last commit (this folder)
Jul 20, 2026 (3 months ago)
Last release
Jul 20, 2026 (3 months ago)

From GitHub (fetched Oct 24, 2026).

Details

License
MIT
Website
myclaw.ai
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Cite this page

aavegotchi-gbm-skill. Agent Mart. https://agentmart.dev/skills/leoyeai-aavegotchi-gbm-skill (last updated 2026-10-24)