One signed binary. Every feature compiled in. Free to run. Install Crowkis →

Notes from the nest · 980 posts

The Roost

Engineering notes written by the people building Crowkis. Comparisons, use cases, economics, internals, security, operations, and nothing written just to rank.

economicsJun 24, 2026· 6m

Reasoning reuse: the deepest LLM saving nobody talks about

Reasoning reuse: the deepest LLM saving nobody talks about. A practical, Crowkis-grounded take, no hype, just what actually moves cost, latency, and safety.

featuresJun 24, 2026· 5m

Tool-result caching (CTOOLSET): how it works and when to use it

Tool-result caching (CTOOLSET), caches a deterministic tool call keyed by tool plus exact args, so a swarm's duplicate lookups become one call. Here's how Crowkis does it and why it matters for cost and safety.

benchmarksJun 24, 2026· 9m

How good is Crowkis agent memory, really? The LoCoMo and LongMemEval numbers

We ran Crowkis memory against two public, hostile retrieval benchmarks, SNAP's LoCoMo and LongMemEval, on a laptop with no cloud calls. Here are the recall numbers, by question type, with the reranker on and off.

economicsJun 24, 2026· 4m

Five agents asking one question should cost one answer

Multi-agent systems fan out, and they ask overlapping questions constantly. Without a shared cache, that overlap is pure waste, the same answer, bought once per agent.

guidesJun 23, 2026· 4m

Cache Rig (Rust) in your RAG document search with Crowkis

Building RAG document search on Rig (Rust)? Add a semantic cache so the same questions re-running retrieval over the same corpus stop costing full price.

guidesJun 23, 2026· 4m

Cache the Mistral SDK in your legal document assistant with Crowkis

Building legal document assistants on the Mistral SDK? Add a semantic cache so the same clauses and questions across matters stop costing full price.

guidesJun 23, 2026· 4m

Cache LiteLLM in your data analysis agent with Crowkis

Building data analysis agents on LiteLLM? Add a semantic cache so repeated tool calls and the same analytical questions stop costing full price.

guidesJun 23, 2026· 4m

Cache Haystack in your contract analysis tool with Crowkis

Building contract analysis tools on Haystack? Add a semantic cache so the same clause questions across documents stop costing full price.

guidesJun 23, 2026· 4m

Cache LangChain in your customer support bot with Crowkis

Building customer support bots on LangChain? Add a semantic cache so repeat questions from every customer, all day stop costing full price.

featuresJun 23, 2026· 5m

Multimodal caching (image + text): how it works and when to use it

Multimodal caching (image + text), caches image-plus-text lookups, so a repeated vision question is a hit instead of an expensive re-run. Here's how Crowkis does it and why it matters for cost and safety.

guidesJun 23, 2026· 8m

The crowkis CLI: every subcommand, with the flags that matter

The binary is the whole product, server, REPL, doctor, bench, and the inspect tools. A tour of the crowkis command line, from cold start to debugging a missed hit.

featuresJun 23, 2026· 5m

What is an embedding, really? A plain-English guide

Embeddings sound like math you need a PhD for. The core idea is simpler and more useful than that, and it's the reason a cache can tell that two different sentences mean the same thing.

guidesJun 22, 2026· 4m

Cache Rig (Rust) in your internal copilot with Crowkis

Building internal copilots on Rig (Rust)? Add a semantic cache so employees asking overlapping questions of the same knowledge base stop costing full price.

guidesJun 22, 2026· 4m

Cache the Mistral SDK in your education tutor with Crowkis

Building education tutors on the Mistral SDK? Add a semantic cache so students asking the same concepts thousands of times stop costing full price.

guidesJun 22, 2026· 4m

Cache LiteLLM in your HR assistant with Crowkis

Building HR assistants on LiteLLM? Add a semantic cache so the same policy questions from every employee stop costing full price.

guidesJun 22, 2026· 4m

Cache Haystack in your onboarding assistant with Crowkis

Building onboarding assistants on Haystack? Add a semantic cache so every new hire asking the same first questions stop costing full price.

guidesJun 22, 2026· 4m

Cache LangChain in your coding assistant with Crowkis

Building coding assistants on LangChain? Add a semantic cache so the same explanations and boilerplate reasoning, dozens of times a day stop costing full price.

featuresJun 22, 2026· 5m

Streaming response caching: how it works and when to use it

Streaming response caching, serves cached answers chunk by chunk, so a hit feels like live typing and the seam between hit and miss disappears. Here's how Crowkis does it and why it matters for cost and safety.

featuresJun 22, 2026· 3m

CGUARD: an input guardrail that survives leetspeak and zero-width tricks

Prompt injection rarely arrives in plain English. CGUARD normalizes the evasion first, whitespace, leetspeak, zero-width characters, then scans for jailbreaks, overrides, and system-prompt exfiltration.

referenceJun 22, 2026· 3m

How to use CSET: store an answer the safe way

CSET writes an answer into the semantic cache, running the five-stage anti-poisoning pipeline before it accepts anything.