feat: derive agent identity from a single private-key env var#435
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manojbajaj95 merged 3 commits intoJun 16, 2026
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When two processes with the same private key race to register, the loser gets a 409 from the identity server. Re-resolve the handle by DID and continue instead of failing startup. Co-authored-by: Cursor <cursoragent@cursor.com>
manojbajaj95
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426-feat-simplify-agent-identity-to-a-single-private-key-environment-variable
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Description
Agent identity is now fully derivable from a single environment variable,
AUTHSOME_IDENTITY_PRIVATE_KEY. The DID is computed locally from the key, and the human-readable handle is resolved from the identity server by DID. This removes the need forAUTHSOME_IDENTITY, local identity files, orauthsome initin headless/agent deployments.Key changes:
RuntimeIdentity.load()accepts a key-only env and defers the handle (the runtimehandleis now optional and resolved later instead of raisingValueError).GET /api/identities/by-did/{did}route +IdentityRegistry.resolve_by_did().AUTHSOME_IDENTITYis kept as an optional, deprecated handle override for backward compatibility.Motivation and Context
The previous two-variable setup (
AUTHSOME_IDENTITY+AUTHSOME_IDENTITY_PRIVATE_KEY) plus local filesystem bootstrap was unnecessarily convoluted for CI, containers, and ephemeral agents. This aligns with the cryptographic model: the identity is the key pair, and the handle is server-registered metadata that should be resolved from the identity server rather than supplied locally.Closes #426.
How Has This Been Tested?
IdentityRegistry.resolve_by_did()returns the registered handle /Nonefor unknown DIDs.GET /api/identities/by-did/{did}returns the handle or 404.RuntimeIdentity.load()with a key-only env derives the DID and leaves the handle unresolved.AUTHSOME_IDENTITY" error.ruffandtyclean on all changed files.Types of changes
Checklist: