Summary

Remove readPostCompactionContext() and its injection in agent-runner.ts. This is Pi-era layer blurring — the middleware reads AGENTS.md from the workspace directory and injects it into agent context after conversation compaction. CLI agents manage their own context; middleware should not read workspace files to inject into agent sessions.

This item is independent of the template/workspace cleanup chain — it can be done in parallel.

What to Delete

• src/auto-reply/reply/post-compaction-context.ts (~118 lines) — contains readPostCompactionContext() which reads AGENTS.md from workspace and builds a system event
• src/auto-reply/reply/post-compaction-context.test.ts

What to Modify

• src/auto-reply/reply/agent-runner.ts — remove readPostCompactionContext import and its injection at approximately L669-684 (the block that reads workspace AGENTS.md and prepends it as a system event after compaction)

What to Evaluate

• src/auto-reply/reply/post-compaction-audit.ts — check if it has callers beyond the post-compaction injection. If it only serves the deleted pipeline, delete it too. If it has independent uses (e.g., general audit functionality), keep it.

Acceptance Criteria

• post-compaction-context.ts and its test file are deleted
• agent-runner.ts no longer imports or calls readPostCompactionContext
• post-compaction-audit.ts evaluated — deleted if no other callers, kept if independently used
• grep -ri "readPostCompactionContext\|post-compaction-context" src/ returns zero hits (excluding the audit file if kept)
• Build passes, existing tests pass

Context

• readPostCompactionContext() reads AGENTS.md from the workspace using the same workspace resolution as other Pi-era code. It builds a "system" event containing the file's content and injects it into the conversation after compaction.
• This was designed for the Pi-embedded execution model where the middleware controlled the agent's context window. In the AgentRuntime/ChannelBridge architecture, CLI agents manage their own compaction and context.
• The injection point in agent-runner.ts is in the compaction/context-building section — look for imports from post-compaction-context.js.