feat: support client-provided MCP servers - #29
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Let ACP clients such as Zed attach stdio MCP servers to new and resumed sessions while keeping process ownership and Letta external-tool bridging in the Agent SDK. See [trace](https://app.letta.com/chat/agent-57231da8-42f3-4523-b190-66c3eda21057?conversation=conv-a27fa457-e2f7-4e76-95fc-af32f0d984db). Resume conversation with `letta --conv conv-a27fa457-e2f7-4e76-95fc-af32f0d984db` 👾 Generated with [Letta Code](https://letta.com) Co-Authored-By: Letta Code <noreply@letta.com>
Letta Code (agent-c2adbf5c-8419-4211-8cd8-3740db164974) Preserve the merged model selector and native terminal support while resolving the MCP documentation and test conflicts. Co-authored-by: Cameron <cameron@pfiffer.org> 👾 Generated with [Letta Code](https://letta.com) Co-Authored-By: Letta Code <noreply@letta.com>
Letta Code (agent-c2adbf5c-8419-4211-8cd8-3740db164974) Let the adapter process remain alive until SDK-owned MCP subprocess cleanup completes, and close displaced sessions when clients reload an already-open conversation. Co-authored-by: Cameron <cameron@pfiffer.org> 👾 Generated with [Letta Code](https://letta.com) Co-Authored-By: Letta Code <noreply@letta.com>
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Summary
session/newandsession/loadinto Agent SDK sessionsValidation
bun run check— 42 tests, typecheck, and buildprocess.exit(0)makes that cleanup regression failsession/loadtest proves the displaced SDK session is closed@letta-ai/letta-agent-sdk@0.5.6Scope
Depends on letta-ai/letta-agent-sdk#242, released in v0.5.6.
👾 Generated with Letta Code