26 Unix tools. One binary. Zero dependencies. · the missing coreutils for the agent era · vrk mcp - expose all 26 tools to any AI agent · curl vrk.sh/install.sh | sh - ready in 5 seconds · 26 Unix tools. One binary. Zero dependencies. · the missing coreutils for the agent era · vrk mcp - expose all 26 tools to any AI agent · curl vrk.sh/install.sh | sh - ready in 5 seconds

Recipes

Agent-safe pipeline with secret masking

When agents handle user data, mask before any logging or storage - secrets should never reach an LLM or a kv store unredacted.

mask tok prompt validate

Batch LLM with rate limiting

Prevents failure at job 847 of 10,000 - throttle paces the pipeline, tok gates each doc before the API call wastes a request.

tok throttle prompt kv

Cache LLM response

Avoids duplicate API calls for identical prompts - the hash keys the cache so reruns are free.

prompt kv

Chunked RAG pipeline

Keeps every chunk within the embedding model's token limit - no silent truncation during indexing.

uuid chunk kv

Fetch and summarise a page

Catches oversized pages before the API call - no wasted request on a doc that won't fit in context.

grab tok prompt

JWT-based key lookup

Ties storage to identity without custom parsing - the JWT carries the key, so the lookup stays stateless and auditable.

jwt kv

Retry flaky API call

Transient 500s don't kill the pipeline - coax retries with backoff so one bad request doesn't stop the run.

coax prompt

Scrub secrets from LLM output

Catches secrets the model echoes back before they reach storage - one leaked API key in kv is a breach.

prompt mask kv

SSE stream to text

Raw SSE is unusable without parsing - sse extracts the content field so downstream tools get clean text, not protocol framing.

sse

Token-checked LLM call

Prevents silent truncation - the model never sees a prompt it can only half-fit.

tok prompt

Validate LLM output before it propagates

Bad structured output exits 1 before reaching downstream systems - you catch schema drift at the source, not in production.

prompt validate kv