v0.2.0

v0.2.0 — Full B2A Toolchain & Economic Safety Layer

This release brings the complete end-to-end agent-native experience:

New Major Features

• MCP Server Generator (Phase 3.2/4.2)

  • @mcp_tool decorator with auto-registration
  • Unified ServiceRegistry (local SDK + persistent DB)
  • Dynamic MCP proxy (/.well-known/mcp/tools.json, /mcp/messages JSON-RPC)
  • Standalone CLI generator + FastMCP support
  • Full Pydantic → MCP JSON Schema translation
  • Seamless dry_run=True support on MCP calls

• Dry-Run Sandbox / Shadow Ledger (Phase 5.2)

  • Redis-backed stateful simulation sessions (15-min TTL)
  • async with b2a.simulate_session() as sim: context manager
  • Cumulative balance checks, cost estimates only (no side-effects)
  • Velocity isolation + single-shot /dry-run/charge endpoint

• Stripe Identity KYC (Phase 2.2)

  • Human sponsor verification before fiat top-ups
  • New wallet states + KYC_REQUIRED_FOR_TOPUP config
  • Full /v1/kyc endpoints

• API Key Rotation (Phase 5.3)

  • Automatic rotation on velocity freeze / compromise
  • Grace period + audit trail
  • SDK helpers + webhook events for agents

Other Improvements

• Unified Service Registry (replaces old register_service() logic)
• mcp optional dependency
• Expanded tests (19 new MCP tests + sandbox coverage)
• Examples + README sections for every new feature

Next up

• Phase 6 (full behavioral Sandbox Engine) + multi-tenancy scaffolding