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fix(cli): pass None as system_message in manual compress to prevent duplication

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_manual_compress() passed self.agent._cached_system_prompt to
_compress_context() as the system_message argument. _compress_context
calls _build_system_prompt(system_message), which appends system_message
to prompt_parts that already contain the agent identity block — causing
the identity to appear twice in the new session's system prompt
(20,957 -> 42,303 chars, +102% as reported in issue #15281).

Fix: pass None instead of _cached_system_prompt. _build_system_prompt(None)
rebuilds the system prompt correctly from scratch without appending a
pre-built prompt on top of the identity layers.

Fixes #15281
This commit is contained in:
ygd58 2026-04-24 20:50:47 +02:00 • committed by Teknium
parent 7444e49d4e
commit fb112d6a73
1 changed files with 7 additions and 1 deletions
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8
cli.py
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@ -7099,9 +7099,15 @@ class HermesCLI:
else:
print(f"🗜️ Compressing {original_count} messages (~{approx_tokens:,} tokens)...")
# Pass None as system_message so _compress_context rebuilds
# the system prompt from scratch via _build_system_prompt(None).
# Passing _cached_system_prompt caused duplication because
# _build_system_prompt appends system_message to prompt_parts
# which already contain the agent identity — resulting in the
# identity block appearing twice (issue #15281).
compressed, _ = self.agent._compress_context(
original_history,
self.agent._cached_system_prompt or "",
None,
approx_tokens=approx_tokens,
focus_topic=focus_topic or None,
)