Step 092 — MetaDecode and SelfDesc-of-SelfDesc

At $E_3$, SelfDesc becomes an object of SelfDesc.

Book / layer. Book VII · E3
Macro step. CS-08 — Recover Reflective Structure
Short routes. https://prrp.site/s92 · https://prrp.site/s092

Status tags. bridge

Construction role

At $E_3$, SelfDesc becomes an object of SelfDesc. The evaluator can represent its own evaluative process, compare registers, and ask whether its own descriptions preserve the conditions that make description possible. This is the reflective kernel of the layer: a living code-carrier becomes a system that can model its own code-bearing status.

What this step earns

MetaDecode and SelfDesc-of-SelfDesc is made addressable as Step 092 in the fine-grained Construction Spine routing layer.

• Routing scaffold. Detailed earned-output extraction is pending the source-map pass.

What this step does not yet establish

This route exposes the RC3 construction step for inspection. It does not by itself establish peer review, empirical adequacy, or final manuscript-level source closure.

Source anchors

• Full Construction Spine RC3 whitepaper source (papers/whitepapers/panta-rhei-construction-spine-e0-e3/main.tex:1188)

Manuscript extraction state: Detailed source anchors pending extraction.

Anchor classification: whitepaper source resolved; manuscript extraction pending; Registry extraction pending; TauLib extraction pending.

Formalization and verification

Registry links: Registry extraction pending.

TauLib modules: TauLib module extraction pending.

Dependencies

• Previous: Step 091 — E₂ → E₃: reflective structure
• Next: Step 093 — Four registers of reason

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• Ten-step Construction Spine