Bug

pi-embedded-subscribe.handlers.compaction.ts passes an empty object {} as hook context to runAfterCompaction, while before_compaction in the same file correctly passes { sessionKey: ctx.params.sessionKey }.

This causes any plugin after_compaction hook that depends on ctx.sessionKey to silently skip.

Affected Code

// pi-embedded-subscribe.handlers.compaction.ts:70-76
void hookRunnerEnd.runAfterCompaction(
  { messageCount: ..., compactedCount: ... },
  {},  // BUG: should be { sessionKey: ctx.params.sessionKey }
)

Compare with before_compaction (line 22-35) which correctly passes { sessionKey: ctx.params.sessionKey }.

Fix

One-liner: {} → { sessionKey: ctx.params.sessionKey }

Impact

Any plugin using after_compaction with ctx.sessionKey (e.g. session-scoped handoff injection via enqueueSystemEvent) silently fails.

Version

2026.2.25