Persona / style tuning at render time without breaking no-fabrication

[tomas-samek]

Summary

Template renderer currently produces neutral output. For a user-facing agent, persona/style should be tunable without breaking the no-fabrication contract.

What to do

• Per-observer or per-session persona config (tone, formality, verbosity).
• Apply at render time only; content still comes verbatim from retrieved memories.
• Ensure persona cannot inject claims (persona changes phrasing, not substance).

Acceptance

• Same retrieved memory renders in two distinct personas on demand.
• No-fabrication test still passes under persona rendering.

Links

• docs/design/honest_agent/tasks/06_renderer.md
• src/mcp/responder.rs