- New RemoteMcpClient implementing MCP streamable-HTTP per spec 2025-03-26:
POST JSON-RPC, parse application/json or text/event-stream responses,
round-trip optional Mcp-Session-Id, optional auth via 'headers' config.
- Refactor StdioMcpClient to share an IMcpClient interface with the remote
client; extension entry dispatches on cfg.type. Drops the v1 'remote
skipped with warning' code path.
- Bump MCP_PROTOCOL_VERSION to 2025-11-25 (single constant, both clients).
- 404 self-heal: when a remote returns 404 to a request carrying our
Mcp-Session-Id, drop the id, re-initialize, retry the request once
(per spec 2025-11-25 \u00a72.2). allowReinitOn404=false on the retry path
prevents recursion. Verified via mock-server smoke test.
- Sanitize pi-facing tool names to ^[A-Za-z][A-Za-z0-9_]{0,63}$. Anthropic
allows hyphens but Bedrock's Anthropic shim rejects them, causing entire
turns to 4xx silently when context7's hyphenated tools (resolve-library-id,
query-docs) were registered. Original MCP-side names are preserved in the
tool-execute closure, so sanitization is purely pi-facing.
- /mcp slash command: drop 'remote (skipped)' status label.
- Docs: README and AGENTS updated for transports, headers config, 404
self-heal, tool-name sanitization rationale, OAuth limitation.
End-to-end verified: context7 connects through pi, returns useful docs
(Bun streaming/SSE example fetched successfully).
joakimp
37cc49e06f