Daily Summary - 2026-02-12
Daily Summary - 2026-02-12
Last updated: 2026-02-12T17:00Z
TL;DR
Sponsored transactions shipped across the full stack — agents can now opt into gas sponsorship so they only need sBTC, not STX. Arc self-provisioned a sponsor key via BTC signature and verified the relay pays all fees on mainnet. Massive cleanup and feature push across 7 repos with 21 PRs merged.
Highlights
The sponsored transaction quest completed in a single day across three repos: the x402 sponsor relay gained a programmatic key provisioning API, the MCP server got sponsored tx support for ERC-8004 and sBTC tools, and the landing page now provisions sponsor keys at registration. Arc tested sponsored transactions on mainnet — the relay correctly pays all STX gas fees. Along the way, Arc found and fixed a double-encoding bug affecting all transactions and three contract call argument bugs. The x402 ecosystem also got major cleanup: Bazaar discovery metadata added, dead code removed, and docs trimmed across x402-api and stx402.
Commits
| Repo | Commits | Focus |
|---|---|---|
| aibtcdev/aibtc-mcp-server | 8 | Sponsored tx support, contract arg bugfixes, double-encoding fix, x402 v2 upgrade, sBTC bridge deposit, wallet password rotation, CLAUDE.md cleanup |
| aibtcdev/landing-page | 5 | Sponsor key provisioning at registration, heartbeat separation, inbox x402 v2 alignment, dependency updates, open issues sprint |
| aibtcdev/x402-sponsor-relay | 3 | BTC signature key provisioning API, relay-as-server architecture, general tx sponsorship with API key auth |
| aibtcdev/x402-api | 3 | Bazaar discovery metadata, codebase simplification, docs cleanup |
| whoabuddy/stx402 | 3 | Jekyll docs removal, codebase cleanup, Bazaar discovery metadata |
| whoabuddy/claude-knowledge | 1 | New handle-pr-feedback skill |
| whoabuddy/claude-logs | 1 | Yesterday’s daily summary |
Open Threads
| Status | Item | Context |
|---|---|---|
| Filed | landing-page#114 | Publish npx skill for landing page |
| Filed | landing-page#110 | Clicking total agents should navigate to agents page |
| In progress | landing-page#109 | x402 inbox release testing playbook — sponsored tx results posted |
| In progress | x402-sponsor-relay#28 | Manual verification of relay-as-server architecture |
| In progress | x402-sponsor-relay#26 | Test /sponsor endpoint and rate limiting on staging |
| Filed | aibtc-mcp-server#86 | Troubleshoot publish to clawhub |
| Merged | aibtc-mcp-server#103 | Fixed contract call args for sbtc_transfer, give_feedback, get_reputation |
| Merged | aibtc-mcp-server#101 | Removed double-encoding from all 12 remaining transaction sites |
| Merged | aibtc-mcp-server#96 | Sponsored tx support — sponsor relay client, builder, tool params |
| Merged | x402-sponsor-relay#31 | Programmatic key provisioning via BTC signature |
| Merged | landing-page#113 | Sponsor key provisioning during registration |
Also Today
- Sponsored tx quest completed: Full plan-exec-verify cycle across 3 repos. Issues drafted, PRs reviewed and merged, mainnet testing done — all in one day.
- Arc registered on identity-registry-v2: First agent on the new registry (agent ID 1). Non-sponsored registration tx confirmed on mainnet.
- Arc provisioned sponsor key: Self-service via BTC signature. Free tier: 10 req/min, 100/day, 100 STX/day cap.
- Mainnet sponsored tx testing: 3 sponsored transactions submitted — relay paid all fees (348-389 uSTX each). Contract-level errors found (self-transfer restriction, post-condition bug, self-feedback restriction) are unrelated to sponsorship.
- Bugs found and fixed: Double-encoding in stacks.js v7 serialize() calls (PR #98 + #101), wrong Clarity types and missing args in contract calls (issue #102, PR #103).
- x402 ecosystem cleanup: Bazaar discovery metadata added to x402-api and stx402. Dead code removed, docs trimmed, Jekyll site removed from stx402.
Stats
| Commits | Repos | PRs Merged | Issues Created | Issues Closed | PR Reviews |
|---|---|---|---|---|---|
| 24 | 7 | 21 | 18 | 17 | 59 |
Companion Activity
| Companion | XP Earned | Tools | Top Activity |
|---|---|---|---|
| whoabuddy/arc | +8,894 | Bash(962), Read(884), Edit(551) | Quest orchestration, mainnet testing |
| aibtcdev/landing-page | +5,436 | Read(703), Bash(564), Edit(287) | Registration flow, heartbeat, testing playbook |
| aibtcdev/aibtc-mcp-server | +3,798 | Bash(519), Read(311), Edit(233) | Sponsored tx, x402 v2, bug fixes |
| aibtcdev/x402-api | +3,085 | Read(336), Bash(318), Edit(179) | Bazaar metadata, codebase cleanup |
| whoabuddy/stx402 | +2,483 | Bash(323), Read(299), Edit(120) | Bazaar metadata, cleanup |
| aibtcdev/x402-sponsor-relay | +1,870 | Bash(224), Read(210), Edit(104) | Key provisioning API, relay architecture |
Session Highlights:
- 326 prompts across 12 repos
- +28,903 XP earned
- Top tools: Bash (3,324), Read (3,137), Edit (1,532), Grep (756), Glob (362)