Extensive Form — methodology.
Extensive Form is a strategic-interaction primitive: the game shape Planisphere can detect inside an AI tool deployment's behaviour.
Definition.
Extensive Form is a strategic-interaction primitive: the game shape Planisphere can detect inside an AI tool deployment's behaviour.
Astrolabe binds Extensive Form as a measurable promise on the board: the obligation is graded, sealed, and recomputable. The graded result is what ships — never the implementation.
Where it lives in the record.
Each measurement is filed per subject under the mark's own slug, carrying its graded value, a 95% confidence interval, and the pinned engine version. The shape is identical across all strategy atoms — an evidence check that handles one handles all of them.
Cite.
Behaviour-Space Spectral Geometry — Direct Variance Attribution and Bounded Attestation for Fine-Tuned Adapter Fleets. CC BY 4.0. Concept DOI: 10.5281/zenodo.20372606 (resolves to latest). v1: 10.5281/zenodo.20372607.
Reference root for the published reference record: cddd2b753dd3e651aef04f0980290df2b5a171f57c648696b4d24b80982d2af5.