A zero-dep Python lib that tracks estimated token usage across a conversation and fires warning callbacks at configurable thresholds — no tokenizer required.

A zero-dep Python lib for agent working memory — keyed notes, lists, counters, prompt injection, and JSONL logging in under 200 lines.

A zero-dep Python lib that trims LLM conversation history to fit a token budget — and always keeps tool_use/tool_result pairs together.

A zero-dep Python lib that tracks estimated token usage across a conversation and fires warning callbacks at configurable thresholds — no tokenizer required.