## What changed
- Add a reusable transcript contributor for synchronous and asynchronous Guardian context, with borrowed conversation history and request-specific configuration.
- Preserve conversation order and role or tool attribution while applying separate per-entry limits for messages, ordinary tools, and Node REPL-backed outputs.
- Make tool calls, tool outputs, and reasoning independently configurable, and expose transcript collection without requiring section composition.
- Register the transcript contributor in a process-wide default registry that retains no request state.
## Testing
- Add unit coverage for role and tool attribution, optional evidence sources, orphaned and named tool outputs, registry reuse, and request-specific entry limits.
GitOrigin-RevId: 2b60f8db4618de8a7175f8ee0183375a526a87db
## What changed
- Add the `codex-guardian-context` crate for assembling structured context shared by synchronous Guardian review and asynchronous scoring.
- Preserve transcript entry roles and original byte counts, and let section contributors declare shared or consumer-specific scope.
- Collect applicable sections in registration order, skip optional sections, and fail the collection when required evidence is missing.
- Provide UTF-8-safe prefix/suffix truncation with approximate omitted-token accounting.
## Testing
- Cover scoped registry collection, ordering, optional sections, required-evidence failures, truncation markers, and UTF-8 boundaries.
GitOrigin-RevId: 19d8458403c470c9b413992dbff925a12259c3c5
felixxia-oai