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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.

guidesJun 14, 2026· 4m

Cache Rig (Rust) in your voice assistant with Crowkis

Building voice assistants on Rig (Rust)? Add a semantic cache so latency-sensitive, repetitive spoken queries stop costing full price.

guidesJun 14, 2026· 4m

Cache the Mistral SDK in your sales enablement tool with Crowkis

Building sales enablement tools on the Mistral SDK? Add a semantic cache so reps asking the same product questions stop costing full price.

guidesJun 14, 2026· 4m

Cache LiteLLM in your SQL generation tool with Crowkis

Building SQL generation tools on LiteLLM? Add a semantic cache so the same schema questions and query shapes stop costing full price.

guidesJun 14, 2026· 4m

Cache Semantic Kernel in your internal copilot with Crowkis

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

guidesJun 14, 2026· 4m

Cache LangChain in your education tutor with Crowkis

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

featuresJun 14, 2026· 5m

Natural-language cache invalidation (CINVALIDATE): how it works and when to use it

Natural-language cache invalidation (CINVALIDATE), purges entries whose meaning matches a plain-English instruction, previewing by default and only acting on COMMIT. Here's how Crowkis does it and why it matters for cost and safety.

referenceJun 14, 2026· 3m

How to use CWHYEVICT: ask why an entry would be dropped

CWHYEVICT explains the retention maths for an entry, recency, frequency, isolation, and cost, so eviction is auditable, not mysterious.

guidesJun 14, 2026· 5m

Guardrails in your request path: CGUARD and COUTCHECK in code

Two commands wrap your model call in an input and an output gate, prompt-injection scanning before, PII and toxicity scanning after. No second model, no egress.

guidesJun 13, 2026· 4m

Cache the Mistral SDK in your knowledge base assistant with Crowkis

Building knowledge base assistants on the Mistral SDK? Add a semantic cache so the same lookups across a team all day stop costing full price.

guidesJun 13, 2026· 4m

Cache LiteLLM in your devops copilot with Crowkis

Building devops copilots on LiteLLM? Add a semantic cache so the same runbook and incident questions stop costing full price.

guidesJun 13, 2026· 4m

Cache Semantic Kernel in your chatbot with Crowkis

Building chatbots on Semantic Kernel? Add a semantic cache so high-volume conversational traffic that repeats constantly stop costing full price.

guidesJun 13, 2026· 4m

Cache LangChain in your multi-agent system with Crowkis

Building multi-agent systems on LangChain? Add a semantic cache so a swarm of agents asking overlapping questions stop costing full price.

featuresJun 13, 2026· 5m

Stale-while-revalidate (CSTALE): how it works and when to use it

Stale-while-revalidate (CSTALE), returns a cached answer past its TTL with a stale flag, so expiry is a snappy answer plus a refresh signal, not a cold miss. Here's how Crowkis does it and why it matters for cost and safety.

featuresJun 13, 2026· 3m

CDOC: a self-hosted RAG store that chunks, filters, and reranks

You don't always need a separate vector database to do retrieval. CDOC is a mini RAG store inside Crowkis, auto-chunking, metadata filtering, and optional cross-encoder reranking, sharing the cache's embedder.

referenceJun 13, 2026· 3m

How to use CFLAG and CCHECKBAD: a memory for wrong answers

CFLAG records a known-bad answer in the negative cache; CCHECKBAD catches every paraphrase of the question that would reproduce it.

guidesJun 12, 2026· 4m

Cache the Mistral SDK in your research assistant with Crowkis

Building research assistants on the Mistral SDK? Add a semantic cache so overlapping literature and summary questions stop costing full price.

guidesJun 12, 2026· 4m

Cache LiteLLM in your API documentation bot with Crowkis

Building API documentation bots on LiteLLM? Add a semantic cache so the same endpoint questions from every developer stop costing full price.

guidesJun 12, 2026· 4m

Cache Semantic Kernel in your AI search with Crowkis

Building AI search on Semantic Kernel? Add a semantic cache so popular queries hit again and again stop costing full price.

guidesJun 12, 2026· 4m

Cache LangChain in your voice assistant with Crowkis

Building voice assistants on LangChain? Add a semantic cache so latency-sensitive, repetitive spoken queries stop costing full price.

operationsJun 12, 2026· 5m

Semantic dedup (CDEDUP): how it works and when to use it

Semantic dedup (CDEDUP), folds near-duplicate answers into clusters and reports the memory reclaimed, best run as scheduled off-peak maintenance. Here's how Crowkis does it and why it matters for cost and safety.