sierra catalina

dossier 001 / public working proposal / 2026.08.14

the Context Layer.

a user-controlled contract for moving the minimum useful context across models, agents & applications.

protocol invariant

one boundary. six recorded steps.

each exchange starts with a declared purpose & ends with a receipt. raw vault access never crosses the boundary.

  1. 01capture

    preserve origin

  2. 02normalize

    derive with provenance

  3. 03vault

    retain authority

  4. 04decide

    grant, reduce or deny

  5. 05bundle

    minimum useful context

  6. 06act

    execute & receipt

receipt rail

request → decision → disclosure → action → writeback

reading order

from argument to implementation.

implementation boundary

start with the contract.

the reference starter covers request validation, deterministic policy reduction, scoped bundle issuance & receipts. it does not claim a production vault, identity system or signing suite.

inspect the starter