Function persisted_agent_identity 

pub(crate) fn persisted_agent_identity(
    mstore: &Store,
    block_id: &str,
) -> Option<PersistedAgentIdentity>

The db_agents row for the agent shown on block_id, if it has one, plus that agent’s token.

Resolves the block → row the same way the identity injector does (identity/resolver/inject.rs): block.meta.agentId first, then the latest active launch on this block. A quick-launch pane (launchAgent in agent-model.ts, whose agentId is a provider key like "claude") has no row and gets None — it has no slug or UID in the identity sense, and deriving either from its display name would recreate the lossy path spec §1.1 measured as the root defect.

The token is minted here, at spawn, rather than at row creation: every row that exists today predates the table, so “mint at creation” would leave them all without one. agent_token_ensure is idempotent, so a row created in the future gets the same token on every spawn.

A store error is logged and treated as “unknown”, never as a spawn failure: this is disambiguation, not a gate, and spec §10 constraint 1 forbids a store read from making a healthy agent unreachable.