Coverage for src/lilbee/app/agent_configs/window.py: 100%

1"""The chat window an agent client needs, shared by the launchers and `lilbee agent-config`.""" 

2 

3from __future__ import annotations 

4 

5# Floor on the served chat window for an agent client. Agents open with a large 

6# baseline prompt (system prompt, tool schemas, agent instructions): opencode's 

7# first turn measures ~32k tokens and Claude Code's ~47k, plus reserved output. 

8# The RAM-derived chat_n_ctx_target default is smaller on most hosts, so a 

9# window below this floor rejects the first message. hermes also refuses a 

10# window under 64000. The dynamic picker still clamps to the model's trained 

11# context and device memory, so asking for the floor never over-allocates. 

12AGENT_CHAT_CTX_FLOOR = 65536 

13 

14 

15def agent_chat_ctx_target(configured: int) -> int: 

16 """Lift a configured chat-context target to the agent floor, never lowering a larger one.""" 

17 return max(configured, AGENT_CHAT_CTX_FLOOR)