1lystore · 1lystore · Jun 15, 2026 · Jun 13, 2026 · Jun 13, 2026 · Jun 13, 2026
diff --git a/ARCHITECTURE.md b/ARCHITECTURE.md
@@ -115,6 +115,38 @@ remote VPS
 
 The relay routes encrypted data. It is not supposed to see plaintext secrets, transaction payloads, private keys, or credential values.
 
+## Cloud Connect Path
+
+For agents you do not host (Claude.ai, ChatGPT, or hosted OpenClaw/Hermes), there is no
+sidecar to install. Instead the vault issues a one-time **connect link** that the user pastes
+into the cloud agent, and the relay exposes an **MCP facade** the agent speaks to directly.
+
+```text
+cloud agent (Claude.ai / ChatGPT / hosted)
+┌────────────────────────┐
+│ paste: dcp_connect_v1_… │  one-time, ≤10 min, key-pinned, no authority
+└───────────┬────────────┘
+            │ MCP over HTTPS (OAuth)
+            ▼
+┌────────────────────────┐     encrypted envelopes      ┌────────────────────┐
+│ dcp-relay (MCP facade   │ ───────────────────────────▶ │ local DCP vault     │
+│ + OAuth bridge)         │ ◀─────────────────────────── │ Desktop approves    │
+└────────────────────────┘                              └────────────────────┘
+```
+
+Trust model (see `packages/dcp-core/src/connect-link.ts`):
+
+- The link **pins the vault's HPKE public key + fingerprint** (out-of-band trust anchor), so a
+  hostile relay cannot MITM the end-to-end channel.
+- The link is **single-use and short-lived** — a bootstrap only, never a standing credential. It
+  is exchanged for a vault-issued session token **only after the user approves on-device**.
+- The link carries **no permission authority**. Scopes, budgets, and revocation live only in the
+  vault policy DB; the embedded `agent_name` is for display.
+- The payload is Ed25519-signed by the vault so the pinned key and identifiers are tamper-evident.
+
+As with the VPS path, the relay routes encrypted envelopes only — it does not see plaintext
+secrets, transaction payloads, private keys, or credential values.
+
 ## Telegram Approval Path
 
 Telegram is a second approval surface, not a vault.

diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -6,6 +6,31 @@ The format is based on Keep a Changelog, and this project adheres to Semantic Ve
 
 ## Unreleased
 
+## 3.0.0 — 2026-06-15
+
+Major, lockstep release of all published `@dcprotocol/*` packages (`core`, `vault`,
+`agent`, `client`, `relay`, `relay-client`) to a single `3.0.0`. The version jump
+realigns published npm content with the current source — earlier `2.0.x` npm
+artifacts had drifted from the repo (same numbers, stale content), which could
+leave downloaded apps calling symbols that were not in the published build.
+
+### Added
+- `core`: agent connection display-name update support (`updateAgentConnection({ name })`)
+  and the vault `PATCH` agent endpoint accepts an optional `name` (display-only rename).
+
+### Fixed
+- `core`: keychain master-key storage now deletes any existing entry before writing,
+  so a vault recreated at the same path can never inherit a stale key (prevents a
+  class of recovery-phrase mismatches).
+- `core`/`vault`: owner-mode reads (the desktop reading its own data) no longer
+  pollute the audit log as agent activity.
+
+### Migration notes
+- Bump all `@dcprotocol/*` dependencies to `^3.0.0` together; mixing `2.x` and `3.x`
+  across these packages is unsupported.
+- No API removals. Code written against `2.x` continues to work; the major bump
+  reflects the lockstep republish, not breaking signatures.
+
 ## 2.0.4 — 2026-05-20
 
 ### Fixed

diff --git a/README.md b/README.md
@@ -91,6 +91,20 @@ For OpenClaw, start a fresh chat/session. For Hermes, run:
 /reload-mcp
 ```
 
+### Cloud Agent (paste a link)
+
+For agents you do not host — Claude.ai, ChatGPT, or hosted OpenClaw/Hermes — there is nothing to
+install. In DCP Desktop, generate a connect link and paste it into the agent:
+
+```text
+dcp_connect_v1_...
+```
+
+The link is **single-use**, expires in ~10 minutes, and carries **no permissions**. It pins your
+vault's public key so the relay cannot impersonate your vault. The agent reaches your on-device
+vault through the DCP relay (an end-to-end-encrypted MCP facade), and **you approve the connection
+on your device** before anything is granted. Scopes, budgets, and revocation stay in your vault.
+
 ### CLI
 
 Use the CLI to create and manage vault data:

diff --git a/packages/dcp-agent/LICENSE b/packages/dcp-agent/LICENSE
@@ -0,0 +1,192 @@
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diff --git a/packages/dcp-agent/package.json b/packages/dcp-agent/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@dcprotocol/agent",
-  "version": "2.0.10",
+  "version": "3.0.0",
   "description": "DCP Agent - Lightweight binary for connecting AI agents to vaults via pairing grants",
   "type": "module",
   "main": "dist/index.js",
@@ -55,8 +55,8 @@
   "author": "DCP Protocol",
   "license": "Apache-2.0",
   "dependencies": {
-    "@dcprotocol/client": "^2.0.1",
-    "@dcprotocol/core": "^2.0.1",
+    "@dcprotocol/client": "^3.0.0",
+    "@dcprotocol/core": "^3.0.0",
     "@modelcontextprotocol/sdk": "^1.0.0",
     "@noble/curves": "^1.4.0",
     "@solana/web3.js": "^1.98.0",