Mirror of lmsanch/toryx-private#797

Production runtime for this fix is ~/.hermes/hermes-agent/ on spark-8a52 = this repo. A prior agent patched services/virtual_team/ on toryx-private by mistake — that tree is dev scaffolding for The Desk (NousResearch#552 / NousResearch#676 on toryx-private), not the live voice pipeline.

Symptoms

• Luis asks Eva in Spanish via Telegram voice message
• Eva replies in a generic English voice (Fish Audio fallback), not her Fish Audio voice_id
• Cross-agent consult_colleague calls also reported broken in the same incident

Three fixes to port from lmsanch/toryx-private's commit a4c045bf

The prior commit patched dead code on toryx-private but the LOGIC is right. Port to this repo's actual voice-reply path (located in gateway/ / tools/).

1. Voice brevity prefix must not hardcode English.

   • Find the equivalent of _VOICE_BREVITY_PREFIX in this repo (note: that exact symbol doesn't exist — start with grep -rnE "brevity|voice prefix|conversational" gateway/ tools/).
   • Replace the English-only wording with an explicit language-mirror directive so each SOUL's [RESPOND IN: <lang>] isn't overridden.

2. Reject empty voice_id at submit-time rather than silently passing it to Fish Audio.

   • Find the Fish Audio TTS invocation. If voice_id is empty, raise rather than proceed.
   • Log ERROR (not silent) when a profile has no fish_voice_id, so regression is visible at daemon start.

3. Deterministic [RESPOND IN: <lang>] injection per config/org_chart.md §3.3 (in toryx-private) — locate the prompt-composition path that builds the user turn for the LLM and inject a language directive based on detection.

   • Heuristic first: Spanish diacritics + function words (fast, deterministic).
   • Fallback: langdetect (noisy on short strings — scope to ES-only v1).
   • Env flag HERMES_LANG_HINT_ENABLED (default true) to disable without a code change.

Smoke test

Send Eva a Spanish voice message from Telegram → she should reply in her own Fish Audio voice in Spanish. Logs should show a [RESPOND IN: ES] injection.

Tests

Port tests/unit/test_multi_bot_voice.py from toryx-private's a4c045bf to this repo's test location.

Don't touch

• toryx-private's services/virtual_team/ tree — separate cleanup (feat: /insights command — usage analytics, cost estimation & activity patterns NousResearch/hermes-agent#552 / Feature: Cognitive Encoding — LLM Auto-Classification + Contradiction Consolidation on Memory Write NousResearch/hermes-agent#676).

Parent issue (toryx-private)

lmsanch/toryx-private#797 — that tracks the user-visible regression; this repo has the actual fix.