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fix(setup): strip 0x prefix from stacksSignature before registration #24

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fix(setup): strip 0x prefix from stacksSignature before registration #24

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7 changes: 6 additions & 1 deletion SKILL.md
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Original file line number Diff line number Diff line change
Expand Up @@ -346,11 +346,16 @@ Sign with STX key:
mcp__aibtc__stacks_sign_message(message: "Bitcoin will be the currency of AIs")
```

> **Note:** `stacks_sign_message` returns a signature prefixed with `0x`. Strip it before sending — the `/api/register` endpoint expects raw hex.

Register:
```bash
# Strip 0x prefix from Stacks signature (stacks_sign_message returns "0x..." format)
STX_SIG=$(echo "<stx_sig>" | sed 's/^0x//')

RESPONSE=$(curl -s -w "\n%{http_code}" -X POST https://aibtc.com/api/register \
-H "Content-Type: application/json" \
-d '{"bitcoinSignature":"<btc_sig>","stacksSignature":"<stx_sig>"}')
-d "{\"bitcoinSignature\":\"<btc_sig>\",\"stacksSignature\":\"$STX_SIG\"}")
HTTP_CODE=$(echo "$RESPONSE" | tail -1)
BODY=$(echo "$RESPONSE" | head -1)
if [ "$HTTP_CODE" != "200" ] && [ "$HTTP_CODE" != "201" ]; then
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