Register 05 · Game theory

Cooperative.

Cooperative is a strategic-interaction primitive: the game shape Planisphere can detect inside an AI tool deployment's behaviour.

Open the Console See how a record is checked
register 05 · Game theory· reference mark
01 ·

What this is.

Twelve marks · strategic interaction primitives · same construction

Use. surplus sharing · core solution.

Source. 2 player circles + brass shared zone.

Register. 05 · Game theory — one of the 17 registers of the PLANiSPHERE corpus library.

02 ·

Promise. strategy

The contract this mark binds — derived, not asserted.

Cooperative is a strategic-interaction primitive: the game shape Planisphere can detect inside an AI tool deployment's behaviour.

Answers: How does Planisphere recognise a Cooperative pattern in an AI tool deployment?

03 ·

See it work.

Evidence record you can check — not code you have to trust.

Planisphere measures your tool deployment against Cooperative and seals the result into a signed, Merkle-rooted evidence record. The grade recomputes on your own hardware; the model state never crosses the boundary.

See the evidence spine →See how a record is checked
04 ·

Where this measurement ships.

Related marks, and the surface this one funnels to.

Cooperative is a reference mark in the Game theory register. Read the related buyer-facing product context at /evidence.

Auction reg 05 · mechanism · bid clearing Coalition reg 05 · winning subset · Shapley value Extensive Form reg 05 · game tree · sequential moves
05 ·

Routes here from.

Where this mark is referenced in the Planisphere surface.
Methodology

Any internal link in the Planisphere site that names "Cooperative" canonicalises here.

06 ·

Sibling marks. Game theory

Same register · same construction.
Payoff Matrix
normal form · 2×2 game
grid + diagonals + brass equilibrium cell
Nash Equilibrium
best-response fixed point
2 best-response curves + brass intersection
Extensive Form
game tree · sequential moves
root + branches + brass optimal path
Mixed Strategy
probability distribution over actions
5 bars + brass mode + dashed curve
Zero-Sum
strict conflict · Σ = 0
opposed arrows + brass equality bars
Prisoner's Dilemma
dominant defection · (D,D)
2×2 C/D grid + brass equilibrium cell
Minimax
saddle point · worst-case bound
surface + brass ridge + valley + saddle
Coalition
winning subset · Shapley value
3 player circles + brass enclosing curve + outsider
Repeated Game
iterated play · folk theorem
4 round nodes + brass cycle arrow + n→∞ dots
Auction
mechanism · bid clearing
gavel + handle + brass sound block + impact
Signaling
asymmetric info · costly type reveal
brass sender + receiver + envelope + noise curves

See the record Cooperative asks for.

The console shows the evidence; the docs show the endpoints; the briefing shows what the product does and does not claim.

Open the Console Read the Docs Read the capability briefing
API ·

When a regulator asks for proof, hand over records — not assurances.

record the duty · seal the receipt · verify offline

Planisphere records each duty event — an output marked, a disclosure shown, a review made — and seals it into a receipt that verifies offline against our published keys. You send hashes, never content. A record is evidence a third party can check; it is not a certification and not a legal determination.

Open the Console Read the Docs Read the capability briefing

See how a record is checked