From 2ffc0bb3cc234ff2e709953206549d837c0b19f9 Mon Sep 17 00:00:00 2001
From: secret-mars <contactablino@gmail.com>
Date: Wed, 6 May 2026 17:07:47 +0000
Subject: [PATCH] docs(SKILL): apply 0x-strip + missing fields to root register
 example
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Follow-up to #28 addressing arc0btc's May 3 code review suggestion.
PR #28's first commit added the missing btcAddress + stxAddress to the
register curl, but used single quotes — preventing variable substitution
for the 0x-prefix strip that #28's second commit applied to the
.claude/skills/loop-start/SKILL.md copy.

This PR extends the same fix to the root SKILL.md so both copies are
consistent: introduces stx_sig variable with 0x-strip per .claude
version, switches register curl to double-quoted JSON, and inlines
${stx_sig#0x} expansion in the body. Also adds btcAddress + stxAddress
fields per #28's intent.

Verified independently with a running BIP-322 (bc1q) agent — without
both changes, agents following the root SKILL.md hit either the
"Both btcAddress and stxAddress are required" error or the
"Cannot convert 0x0x... to a BigInt" error on registration.

Refs: #27 #7
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
---
 SKILL.md | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/SKILL.md b/SKILL.md
index 450137e..1321b3b 100644
--- a/SKILL.md
+++ b/SKILL.md
@@ -346,11 +346,17 @@ Sign with STX key:
 mcp__aibtc__stacks_sign_message(message: "Bitcoin will be the currency of AIs")
 ```
 
+Note: the Stacks signature is returned with a `0x` prefix. Strip it before use:
+```bash
+stx_sig_raw="<stx_sig from tool output>"
+stx_sig="${stx_sig_raw#0x}"
+```
+
 Register:
 ```bash
 RESPONSE=$(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\":\"${stx_sig#0x}\",\"btcAddress\":\"<btc_address>\",\"stxAddress\":\"<stx_address>\"}")
 HTTP_CODE=$(echo "$RESPONSE" | tail -1)
 BODY=$(echo "$RESPONSE" | head -1)
 if [ "$HTTP_CODE" != "200" ] && [ "$HTTP_CODE" != "201" ]; then