C010 — Claim Definition¶


Research	R0028 — Prompt Engineering Claims
Run	2026-03-26
Claim	C010

Claim as Received¶

RFC 2119 is the Internet Engineering Task Force standard that defines the meaning of requirement-level keywords like MUST, MUST NOT, SHOULD, and MAY, and has been in use since 1997.

Claim as Clarified¶

Confirmed. RFC 2119, authored by S. Bradner of Harvard University, published March 1997, is a Best Current Practice (BCP 14) document that defines keywords MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT, SHOULD, SHOULD NOT, RECOMMENDED, MAY, and OPTIONAL for use in IETF documents.

BLUF¶

Confirmed. RFC 2119, authored by S. Bradner of Harvard University, published March 1997, is a Best Current Practice (BCP 14) document that defines keywords MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT, SHOULD, SHOULD NOT, RECOMMENDED, MAY, and OPTIONAL for use in IETF documents.

Scope¶

Domain: Prompt engineering and related fields
Timeframe: As of 2026-03-26
Testability: Verifiable through primary sources and published research

Assessment Summary¶

Probability: Almost certain (95-99%)

Confidence: High

Hypothesis outcome: See assessment.md for full reasoning chain.

[Full assessment in assessment.md.]

Status¶

Field	Value
Date created	2026-03-26
Date completed	2026-03-26
Researcher profile	None provided
Prompt version	Unified Research Standard v1.0-draft
Revisit by	2027-03-26
Revisit trigger	New evidence or source changes