Baseline restart 2026-04-24: every workspace came up healthy (uvicorn
listening, agent-card serving) but produced zero delegations for two
maintenance cycles. Tracing revealed platform's ProxyA2A POSTs to
`http://ws-<id>:8000/` (no path suffix, see
workspace-server/internal/provisioner.InternalURL) while the runtime's
JSON-RPC routes were mounted at `/api/v1/jsonrpc/` under the a2a-sdk
1.x API migration.
Result was silent — every inbound A2A returned 404 Not Found, the
platform logged "Not Found" at INFO level, but no error bubbled up
because the SDK's jsonrpc route factory doesn't respond to root when
mounted at a subpath. Agents stayed warm, crons fired, but no work
flowed.
Fix: `create_jsonrpc_routes(handler, "/")` — matches platform
expectation and the agent-card self-advertisement (which also shows
root as the JSON-RPC URL). Agent-card route keeps its hard-coded
`/.well-known/agent-card.json` path so there's no collision.
Bumped to 0.1.12.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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