blog: lethal trifecta, Rule of Two, and metered authority (publish 7/16)#778
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Tier-2 thought-leadership post, publish date 2026-07-16. Willison's trifecta and Meta's Rule of Two verified verbatim against primary sources; the post positions metered pre-execution authority (priced actions, bounded per-run allowances, three-way decisions) as a third deterministic option for agents whose job requires all three legs, with an explicit section on what metering does not fix. Review cycles 1-2 + codex (2 rounds, SHIP) applied. Depends on PR #775 for one link.
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Summary
Lethal Trifecta, Rule of Two, and Metered Authority — publish date 2026-07-16. Tier-2 batch post 2/5.
Thought-leadership: Willison's trifecta and Meta's Rule of Two (both verbatim-verified against primary sources) are capability subtraction; for agents whose job requires all three legs, metered pre-execution authority is a third deterministic option. Explicit "what metering does not fix" section; composition table (Rule of Two for catastrophic action classes, metering for the rest).
Review trail
Fact-check (both Willison quotes + Meta's "deterministically reduced" verbatim-verified; "must satisfy no more than two" corrected to Meta's exact modal) + style agent + codex ×2 (REVISE-MINOR → SHIP).
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Test plan