# Essai 3 run record

Date: 23 October 2026. Author: Codex, this session. Status: constructed and checked locally; publication status is controlled by the associated pull request, not this file.

## Reading coverage

Fresh full-text reading before construction:

- Simon (1962), *The Architecture of Complexity*: all 17 PDF pages including cover, article pp. 467–482. Selected visual check of printed p. 474, including Figure 1 and its interaction matrix. Other figures/equations were read through extracted text; no complete visual proof audit is claimed.
- Gibbons, LiCalzi and Warglien (2021), *What Situation Is This? Shared Frames and Collective Performance*: all 17 PDF pages, article pp. 124–140 including references. Selected visual check of pp. 127–129 for payoff matrix and framing/payoff figures. The separate online appendix was not part of the record and was not read.
- Richards, McKay and Richards (2002), *The Probability of Collective Choice with Shared Knowledge Structures*: all 14 PDF pages, article pp. 338–351 including appendix proofs and references. Selected visual check of printed p. 344 for the tree definitions, lemma and theorem statements. The source filename's 2001 date reflects online/copyright timing; the journal year is 2002.

Read-only source access. No database records or metadata changed. No source-paper files, private source paths or private notes are in the public payload. Public references are bibliographic links; the paper figures are not reproduced.

## Construction and checks

The model, scenario, pairing search, action rule, comparison metrics and scope limits are original to this attempt. They are not a replication of any source paper's numerical results.

Six deterministic model tests cover enumeration/unique or tied structural minima, conservation, the A/B hidden-distinction witness, bounded results, immediate-decision failure, cycle/tie handling and invalid controls. Independent Python exact-fraction verification checks the JavaScript result using closed-form dynamics rather than the implementation's transition loop. Recorded results cover original and changed relations, immediate and later decisions, zero weak links, and the all-pairings-tied control.

The interface has no save, upload or external side effect. Its controls change only the current computation, immediately. Reload and reset restore the starting case; a durable saved receipt, History and correction route are not applicable to this deliberately ephemeral experiment. Public model/results downloads are files, not saved decisions.

The older essais and their sources remain intact and directly linked from the enquiry and this leaf. This third attempt adds a result; it does not silently replace their claims.