merge: testing → main (reconcile 2-week divergence)

decnet/realism/prompts/_style.py

@@ -0,0 +1,39 @@
+"""Shared stylometric guards for LLM-bound prompts.
+
+Lifted from the original ``orchestrator.emailgen.prompt`` em-dash
+block so file-class prompts (note / todo / draft / script bodies)
+pick up the same suppression.  Per the
+``feedback_em_dash_llm_tell.md`` memory: em-dashes (—) are a strong
+LLM-authorship tell, suppress by default; allow only for personas
+explicitly opted in via ``EmailPersona.uses_llms_heavily``.
+"""
+from __future__ import annotations
+
+from decnet.realism.personas import EmailPersona
+
+
+_SUPPRESS_RULE = (
+    "Do NOT use em-dashes (—). Use commas, periods, or "
+    "parentheses instead. Em-dashes are a tell."
+)
+_ALLOW_RULE = (
+    "Em-dashes are fine — this persona uses them naturally. "
+    "Write in your usual style."
+)
+
+
+def em_dash_rule(persona: EmailPersona) -> str:
+    """Return the em-dash instruction line for *persona*'s prompt."""
+    if persona.uses_llms_heavily:
+        return _ALLOW_RULE
+    return _SUPPRESS_RULE
+
+
+def strip_em_dashes(text: str, persona: EmailPersona) -> str:
+    """Belt-and-braces: even with the prompt rule, small models leak
+    em-dashes occasionally.  Substitute with comma+space so the
+    output reads naturally; opt-in personas pass through unchanged.
+    """
+    if persona.uses_llms_heavily:
+        return text
+    return text.replace("—", ", ").replace("–", ", ")