KNDL — The Format Anthropic Memory Was Waiting For Anthropic shipped Memory for agents — a filesystem. KNDL is the smart format for files Claude writes: every fact carries confidence, decay, provenance, bitemporal validity, and a supersession chain. One .fact.json file per assertion.

Anthropic Memory = WHERE (filesystem, persistence)

KNDL = WHAT (the format of facts Claude writes)

kndl-mcp / CLI / Skill = HOW (query, decay, provenance)

Machine-readable resources:

/llms.txt — LLM index (llmstxt.org)

/context/v1.jsonld — JSON-LD @context

/schema/fact.schema.json — JSON Schema for Fact

/sitemap.xml — full URL index

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