felixxia-oai 09bd19a0de Decouple Guardian retrieval from local message-board handles (#60002) ...

## Why

Guardian's retrieval, channel selection, and evidence delivery depend on concrete local message-board types. Expose the required operations through shared interfaces so these consumers can use trait-based board handles.

## What changed

- Introduce `BoardReadView` for captured catalogs and post boundaries, with read operations and JSON search configuration but no mutation methods.
- Extend `AgentMessageBoard` with namespace identification, read-view capture, and channel subscription operations, and implement them for the local board.
- Add `message_board_read_tools` to bind the five read-only tools to a captured view.
- Migrate Guardian consumers to `AgentMessageBoard` and `BoardReadView`, retaining Guardian namespace checks and captured read boundaries.

## Testing

Adapt read-view and Guardian retrieval tests to the trait interfaces. Add assertions for the five retrieval tools and rejection of ordinary boards by retrieval binding, subscription capture, and delivery planning.

GitOrigin-RevId: f8c5bc65d8297f6df6e3b02d6c09006bcaea4b1a

2026-11-06 22:26:03 +00:00

..

common

Add an in-memory launcher for the message-board MCP server (#58909)

2026-11-02 15:29:45 +00:00

local_board

Decouple Guardian retrieval from local message-board handles (#60002)

2026-11-06 22:26:03 +00:00

local_board.rs

Add atomic bulk channel subscription updates (#59998)

2026-11-06 22:09:04 +00:00