cd /Users/genie/.hermes/hermes-agent source venv/bin/activate python - <<'PY' from types import SimpleNamespace import cli

obj = object.new(cli.HermesCLI) obj.conversation_history = [] obj.agent = SimpleNamespace( session_api_calls=1, session_input_tokens=1, session_output_tokens=2, session_cache_read_tokens=0, session_cache_write_tokens=0, session_prompt_tokens=3, session_completion_tokens=4, session_total_tokens=5, context_compressor=None, model="x", get_rate_limit_state=lambda: None, )

try: cli.HermesCLI._show_usage(obj) except Exception as e: print(type(e).name, e) PY

TL;DR

Add a guard to check if agent.context_compressor is not None before accessing its attributes in the /usage command.

Guidance

• Introduce a conditional check for agent.context_compressor before dereferencing its attributes, similar to the existing guard in cli.py:1919-1928.
• Update the /usage command to handle the case where context_compressor is None and provide default values for compressor-derived metrics.
• Review other parts of the code that access agent.context_compressor to ensure they also handle the None case.
• Test the updated code with the provided minimal reproduction script to verify the fix.

Example

if obj.agent.context_compressor:
    # access compressor attributes
    last_prompt_tokens = obj.agent.context_compressor.last_prompt_tokens
    context_length = obj.agent.context_compressor.context_length
    compression_count = obj.agent.context_compressor.compression_count
else:
    # provide default values
    last_prompt_tokens = 0
    context_length = 0
    compression_count = 0

Notes

This fix assumes that the existing guard pattern in cli.py:1919-1928 is the correct approach to handle missing context_compressor objects. Additional testing and review may be necessary to ensure the updated code behaves as expected in all scenarios.

Recommendation

Apply the workaround by adding a guard to check for agent.context_compressor and providing default values for compressor-derived metrics when it is None, as this approach is consistent with existing code patterns and allows the /usage command to handle missing compressors gracefully.