indexer-agent | Notion

New agent version can assume
- that the network subgraph is horizon compatible
- that the address books contain valid horizon addresses
  - Doesn’t mean that the horizon upgrade is deployed, just the proxies
New agent version cannot assume
- that horizon contracts are ready (as in they can be interacted with)
- that legacy contracts are available (this is for testing purposes)
New agent version should work with
- the current version of the protocol + the new subgraph (backwards compatible)
- horizon protocol + the new subgraph (horizon compatible)
This means that deployment sequencing should be:
- deploy new network subgraph
- deploy horizon proxies
- upgrade indexer-agent