Graceful Boundaries
Open spec for how services communicate operational limits to humans and agents: limits discovery, structured refusals, conformance levels.
AI Documentation Files
Access the llms.txt files for this website
Graceful Boundaries is an open specification (CC-BY-4.0) for how HTTP services communicate operational limits — rate limits, quotas, auth, payload size — to humans and autonomous agents. It extends RFC 9457 problem-details with a structured refusal vocabulary, defines a limits-discovery endpoint, and specifies four conformance levels (L0–L4).
Key Focus Areas
- Operational-limit communication
- Agent-safe HTTP error responses
- Conformance checking via
npx graceful-boundaries check <url>
About llms.txt Implementation
The llms.txt at gracefulboundaries.dev points to the spec, the RFC 9457 profile, the conformance checker, and worked examples — the minimum context an agent needs to either implement the spec or interpret a conformant service's responses.
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