sentryagent-idp/openspec/changes/archive/2026-04-02-phase-3-enterprise/proposal.md

Phase 3: Enterprise — Change Proposal

Date: 2026-03-29 Author: Virtual Architect Status: Proposed — awaiting CEO approval

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Summary

Phase 1 delivered a complete, working AgentIdP MVP. Phase 2 made it production-ready: Vault-backed secrets, multi-language SDKs, OPA policy engine, React dashboard, Prometheus/Grafana observability, and multi-region Terraform deployment. Phase 3 makes AgentIdP enterprise-grade: the platform moves from a single-tenant developer tool to a multi-tenant enterprise identity platform with W3C DID support, OIDC compliance, AGNTCY federation, real-time event streaming, and SOC 2 Type II controls.

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Problem Statement

Phase 1 and Phase 2 are functional and production-ready but have the following enterprise gaps:

Gap	Risk
Single-tenant architecture	Cannot serve enterprise customers with isolated data requirements
No W3C DID support	Not fully AGNTCY-compliant; agents lack interoperable decentralized identifiers
OAuth 2.0 only, no OIDC	Cannot integrate with standard enterprise identity ecosystems (SSO, SCIM)
No cross-instance federation	Multi-organization agent identity cannot be verified across AgentIdP deployments
No webhook/event streaming	Operators cannot react to agent lifecycle events in real time
No SOC 2 controls	Cannot pass enterprise security reviews; blocks revenue from regulated industries

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Proposed Changes

1. Multi-Tenancy

Introduce an Organization model so a single AgentIdP instance can serve multiple isolated organizations. Each organization has its own namespace of agents, credentials, audit log, and rate limits. A new Admin API provides organization lifecycle management. All existing agent, credential, and audit endpoints become organization-scoped.

2. W3C Decentralized Identifiers (DIDs)

Issue a W3C did:web identifier for every registered agent. Serve DID Documents at /.well-known/did.json (instance root) and /agents/:id/did (per-agent). Expose a DID resolution endpoint. Produce AGNTCY-format agent cards from DID Documents.

3. AGNTCY Federation

Enable cross-instance agent identity federation using signed JWT assertions. Operators register trusted federation partners. Tokens issued by a trusted remote AgentIdP instance can be verified locally, enabling multi-organization and cross-enterprise agent identity interoperability aligned with AGNTCY standards.

4. OpenID Connect (OIDC)

Add a full OIDC layer on top of the existing OAuth 2.0 implementation using the oidc-provider certified library. Exposes OIDC Discovery, JWKS, ID tokens with agent claims, and an /agent-info endpoint (the agent-identity equivalent of the OIDC /userinfo endpoint).

5. Webhooks and Event Streaming

Real-time event notifications for all agent lifecycle events: agent created, suspended, revoked, credential rotated, token issued. Operators create webhook subscriptions with HMAC-SHA256 signing. Delivery is async via a Redis-backed queue with exponential backoff retry. An optional Kafka/NATS adapter is available for high-throughput environments.

6. SOC 2 Type II Preparation

Implement the technical controls required for SOC 2 Type II audit: encryption at rest via PostgreSQL column-level encryption for secrets, TLS enforcement on all inbound connections, automated secrets rotation, security event alerting via Prometheus alerting rules, and audit log immutability proof using a Merkle hash chain appended to each audit_logs row.

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Out of Scope for Phase 3

• Rust/C++ SDKs (Phase 4)
• Azure Terraform module (Phase 4)
• SCIM provisioning (Phase 4)
• End-user (human operator) identity management (out of product scope — AgentIdP is agent-first)

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Capabilities Table

New Capabilities

Workstream	Capability	Type
Multi-Tenancy	Organization model with isolated agent namespaces	New
Multi-Tenancy	Admin API: create, list, update, delete organizations	New
Multi-Tenancy	Per-organization rate limits and audit logs	New
Multi-Tenancy	Organization member management	New
W3C DIDs	did:web identifier on every registered agent	New
W3C DIDs	DID Document endpoint per agent	New
W3C DIDs	Instance-level root DID Document	New
W3C DIDs	DID resolution endpoint	New
W3C DIDs	AGNTCY-format agent card from DID Document	New
OIDC	OIDC Discovery endpoint (/.well-known/openid-configuration)	New
OIDC	JWKS endpoint (/.well-known/jwks.json)	New
OIDC	ID token with agent claims in token response	Modified
OIDC	/agent-info endpoint (agent claims)	New
Federation	Trust registry: register and list federation partners	New
Federation	Cross-instance token verification endpoint	New
Federation	Signed JWT assertion inter-IdP protocol	New
Webhooks	Webhook subscription management (CRUD)	New
Webhooks	HMAC-SHA256 signed delivery with retry	New
Webhooks	Delivery history log	New
Webhooks	Kafka/NATS adapter (optional)	New
SOC 2	PostgreSQL column-level encryption for secrets at rest	New
SOC 2	TLS enforcement middleware (reject non-TLS)	New
SOC 2	Automated secrets rotation schedule	New
SOC 2	Security event alerting (Prometheus alerting rules)	New
SOC 2	Merkle hash chain on audit_logs for immutability proof	New
SOC 2	Compliance documentation (controls matrix, runbook)	New

Modified Capabilities

Workstream	Capability	Change
Multi-Tenancy	POST /agents	Now scoped to organizationId
Multi-Tenancy	GET /agents	Filters restricted to caller's organization
Multi-Tenancy	GET /audit	Restricted to caller's organization by default
Multi-Tenancy	Rate limiting	Per-organization limits in addition to global
OIDC	POST /oauth2/token	Returns id_token in addition to access_token
SOC 2	Audit log write path	Computes and appends Merkle hash on insert

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Repository Impact

Area	Impact
src/	New services: OrgService, DIDService, OIDCService, FederationService, WebhookService, SOC2Controls
src/db/migrations/	8–10 new migration files
src/types/index.ts	~80 new interfaces/types
src/middleware/	New TLS enforcement middleware, updated auth middleware for org context
src/routes/	6 new route files
/.well-known/	3 new well-known endpoints
policies/	Updated Rego policies for org-scoped permissions
dashboard/	New Organization management pages
monitoring/	New alerting rules for SOC 2 security events
docs/	Compliance documentation, federation setup guide, webhook integration guide

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New Dependencies

Workstream	Package	Purpose	CEO Approval Required
Multi-Tenancy	No new packages — row-level tenancy in existing PostgreSQL	—	No
W3C DIDs	did-resolver	W3C DID resolution	Yes
W3C DIDs	web-did-resolver	DID:WEB method resolver	Yes
OIDC	oidc-provider	Certified OIDC server library	Yes
Federation	No new packages — signed JWT assertions use existing jsonwebtoken	—	No
Webhooks	bull (Redis-backed queue)	Async webhook delivery queue	Yes
Webhooks	kafkajs (optional, Kafka adapter)	Kafka event streaming	Yes
SOC 2	node-forge	Column-level encryption primitives	Yes

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Delivery Sequence

Multi-tenancy is a prerequisite for all enterprise customer work — it must land first. DID support and OIDC are independent and can proceed in parallel. Federation depends on DIDs being in place. Webhooks are standalone. SOC 2 controls cut across the entire codebase and are implemented last to ensure all features they protect are already present.

1. Multi-Tenancy (prerequisite — all enterprise features assume org context)
2. W3C DIDs  (parallel)
   OIDC      (parallel)
3. Federation (depends on DIDs)
4. Webhooks (standalone)
5. SOC 2 (cuts across all workstreams — implemented after all features are stable)

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Success Criteria

• All new dependencies CEO-approved before implementation begins
• All new API endpoints have OpenAPI 3.0 specs before implementation
• Multi-tenancy isolation verified: no cross-organization data leakage
• DID Documents are W3C DID Core 1.0 compliant and resolve correctly
• OIDC Discovery passes oidc-provider conformance test suite
• Federation token verification rejects tampered assertions
• Webhook delivery achieves >99.9% success rate with retry logic
• SOC 2 controls pass independent technical review
• TypeScript strict mode + zero any maintained throughout

• 80% test coverage on all new services