polymarket-trade

Trade on Polymarket prediction markets on Polygon. Supports browsing markets, checking wallet/CLOB balance, and buying or selling YES/NO shares with safety gates. Wallet: WDK vault (~/.aurehub/.wdk_vault). Config: ~/.aurehub/polymarket.yaml. Triggers: buy YES, buy NO, sell shares, browse markets, check Polymarket balance, Polymarket trade, prediction market, what are the odds, redeem winnings, claim resolved positions.

Trade on Polymarket prediction markets. Non-custodial — private key stays in your WDK vault.

Prerequisites

Before any action, check prerequisites for the current flow and auto-fix what you can.

Browse flow (no wallet, no RPC, no CLOB needed): check step 4 only. Redeem flow (no CLOB needed): check steps 1–5 in order. Balance / Trade / Setup flow: check all steps 1–6 in order.

Step types:

• HARD STOP — cannot proceed; inform user and stop (these require prior xaut-trade setup).
• AUTO-FIX — run the command automatically, then continue.
• INTERACTIVE — run the script; it will print the wallet address and save credentials; report the result to the user.

Step	Missing item	Type	Agent action
1	~/.aurehub/.wdk_vault	HARD STOP	Inform: xaut-trade must be installed and its wallet setup completed first. Stop.
2	~/.aurehub/.wdk_password	HARD STOP	Inform: xaut-trade must be installed and its wallet setup completed first. Stop.
3	~/.aurehub/.env missing	AUTO-FIX	Run: cp <skill-dir>/.env.example ~/.aurehub/.env
3	~/.aurehub/.env exists, POLYGON_RPC_URL absent	AUTO-FIX	Append POLYGON_RPC_URL=https://polygon.drpc.org to ~/.aurehub/.env
4	~/.aurehub/polymarket.yaml missing	AUTO-FIX	Run: cp <skill-dir>/config.example.yaml ~/.aurehub/polymarket.yaml
5	node_modules missing in <skill-dir>/scripts/	AUTO-FIX	Run: npm install in <skill-dir>/scripts/
6	~/.aurehub/.polymarket_clob missing	INTERACTIVE	Run: node <skill-dir>/scripts/setup.js (only after steps 3–5 pass)

On any auto-fix failure: stop and report the error with the manual remediation command. After all fixes succeed, re-run the relevant checks and proceed.

Optional environment variables (in ~/.aurehub/.env)

Variable	Purpose	Default
WDK_ACCOUNT_INDEX	HD derivation index (0-based) for wallet address	0

After prerequisites pass: if the user's message matches browse flow (contains "browse", "what markets", "what are the odds"), skip registration and proceed directly to intent detection. Otherwise run Account Selection, then Wallet-Ready Registration (below) before proceeding to intent detection.

Account Selection

If the user specifies a wallet index (e.g. "use wallet 2", "account 1", "wallet 3"), remember that index for the entire session. Append --account N to every node trade.js, node balance.js, node setup.js, and node redeem.js command in this session.

If the user does not specify an account, do not append --account — the default from WDK_ACCOUNT_INDEX in .env (or 0) is used automatically.

<skill-dir> is the directory containing this SKILL.md file.

Resolving POLY_SCRIPTS_DIR

Use <skill-dir>/scripts as the scripts directory. To find it at runtime:

bash

# 1. Git repo fallback
GIT_ROOT=$(git rev-parse --show-toplevel 2>/dev/null)
[ -n "$GIT_ROOT" ] && [ -d "$GIT_ROOT/skills/polymarket-trade/scripts" ] && POLY_SCRIPTS_DIR="$GIT_ROOT/skills/polymarket-trade/scripts"
# 2. Bounded home search
[ -z "$POLY_SCRIPTS_DIR" ] && POLY_SCRIPTS_DIR=$(dirname "$(find -L "$HOME" -maxdepth 6 -type f -path "*/polymarket-trade/scripts/browse.js" 2>/dev/null | head -1)")

Wallet-Ready Registration

Run after prerequisites pass for any wallet-requiring flow (not browse). Derive WALLET_ADDRESS using xaut-trade's swap.js (required by prerequisites):

bash

XAUT_SWAP=$(find -L "$HOME" -maxdepth 6 -type f -path "*/xaut-trade/scripts/swap.js" 2>/dev/null | head -1)
source ~/.aurehub/.env
WALLET_ADDRESS=$(node "$XAUT_SWAP" address | node -p "JSON.parse(require('fs').readFileSync(0,'utf8')).address")

If XAUT_SWAP is empty or the command fails, skip registration silently and continue.

1. REGISTERED=$(cat ~/.aurehub/.registered 2>/dev/null)
2. If "$REGISTERED" starts with "$WALLET_ADDRESS:" → already registered, silent skip; return immediately
3. If RANKINGS_OPT_IN != "true":
   • Check marker: PROMPTED=$(cat ~/.aurehub/.rankings_prompted 2>/dev/null)
   • If marker starts with "$WALLET_ADDRESS:" → skip; return immediately
   • Otherwise ask once: "Join XAUT activity rankings now? (yes/no)"
     • If user says no: echo "$WALLET_ADDRESS:declined" > ~/.aurehub/.rankings_prompted; return
     • If user says yes:
       • If NICKNAME is empty: ask user for nickname
       • Persist opt-in in ~/.aurehub/.env (RANKINGS_OPT_IN=true, NICKNAME=<value>)
       • Re-source env: source ~/.aurehub/.env
       • Continue to step 4
4. If RANKINGS_OPT_IN == "true":
   • If NICKNAME is empty: ask "You're opted in to XAUT activity rankings — what nickname would you like to appear as?", then persist to ~/.aurehub/.env and re-source
   • Register:

   bash

   NICKNAME_ESC=$(printf '%s' "$NICKNAME" | sed 's/\\/\\\\/g; s/"/\\"/g')
   REGISTER_RESP=$(curl -s -o /dev/null -w "%{http_code}" -X POST \
     https://xaue.com/api/rankings/participants \
     -H 'Content-Type: application/json' \
     -d "{\"wallet_address\":\"$WALLET_ADDRESS\",\"nickname\":\"$NICKNAME_ESC\",\"source\":\"agent\"}")
   

   • HTTP 200 or 201: echo "$WALLET_ADDRESS:$NICKNAME" > ~/.aurehub/.registered; inform: "Registered with nickname: $NICKNAME"
   • Any other status: silent continue, do not write marker file

Only prompt once per wallet. The .rankings_prompted and .registered markers ensure idempotency across sessions.

Intent Detection

User says	Action
"buy YES on X market", "buy X at Y price", "buy shares"	buy flow
"sell my YES shares", "sell X shares"	sell flow
"browse X", "what markets", "what are the odds on X"	browse flow
"my polymarket balance", "how much USDC"	balance flow
"redeem", "claim winnings", "collect"	redeem flow

Browse Flow

Run environment check (no wallet, no RPC, no CLOB credentials needed):

text

node "$POLY_SCRIPTS_DIR/browse.js" "<keyword or market slug>"

Show the output to the user. The output includes:

• Slug and ConditionId — either can be passed as --market to trade.js
• Token IDs — for reference

Prefer passing ConditionId to --market when trading (more reliable than slug).

Balance Flow

Run environment check:

text

node "$POLY_SCRIPTS_DIR/balance.js"

Redeem Flow

Run environment check (no CLOB credentials needed), then:

text

node "$POLY_SCRIPTS_DIR/redeem.js"

Show output. If negRisk positions are skipped, tell the user to visit polymarket.com.

Buy Flow

1. Run node "$POLY_SCRIPTS_DIR/browse.js" <market> to show current prices
2. Ask user: market slug, side (YES/NO), amount in USD
3. Run: node "$POLY_SCRIPTS_DIR/trade.js" --buy --market <slug> --side YES|NO --amount <usd>
4. The script handles approval and order submission; report the result

Pass --dry-run to simulate the full flow (balance checks, hard stops, order construction) without submitting any transactions.

Sell Flow

1. Run node "$POLY_SCRIPTS_DIR/browse.js" <market> to confirm token IDs and current bids
2. Ask user: market slug, side (YES/NO to sell), number of shares
3. Run: node "$POLY_SCRIPTS_DIR/trade.js" --sell --market <slug> --side YES|NO --amount <shares>
4. The script handles setApprovalForAll and order submission; report the result

Pass --dry-run to simulate the full flow (balance checks, hard stops, order construction) without submitting any transactions.

Safety Gates (handled by trade.js)

• Amount < $50: proceeds automatically
• $50 ≤ amount < $500: shows risk summary, prompts once
• Amount ≥ $500: double confirmation required
• Insufficient USDC.e (buy): auto-swap POL→USDC.e offered; swap targets 110% of needed amount (buffer), 2% slippage protection; hard-stop only if POL also insufficient
• Hard-stops: insufficient POL gas (<0.01), market CLOSED, amount < min_order_size, CTF balance insufficient (sell)

Geo-restriction

Polymarket API blocks US and some other regions. If you see a 403 error, tell the user to enable a VPN and retry.

Polymarket Knowledge Base

• Chain: Polygon mainnet (chain_id: 137)
• Settlement currency: USDC.e (bridged USDC, 0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174)
• Share price scale: 0.00–1.00, where price = implied probability (e.g. $0.70 YES = 70% market probability of YES outcome)
• Minimum share price: $0.01; maximum: $0.99
• Settlement: winning shares redeem for $1.00 USDC.e each; losing shares expire worthless
• Order type: FOK (Fill-Or-Kill) — market orders fill immediately or cancel atomically; no partial fills left open
• Restricted regions: United States, United Kingdom, Singapore, and others — use a VPN with a supported country node if blocked

Answer knowledge queries directly using the data above — no API calls needed.

References

Load these on demand:

• references/setup.md — first-time setup guide
• references/buy.md — detailed buy flow
• references/sell.md — detailed sell flow
• references/balance.md — balance interpretation
• references/browse.md — browse output format
• references/contracts.md — Polygon contract addresses
• references/safety.md — safety gate details