docs(integrations): rename Mimir Memory → Perseus Vault Memory (supersedes #1877) (#1928)

* docs(integrations): rename Mimir Memory -> Perseus Vault Memory (supersedes #1877)

* docs(integrations): address review on perseus-vault memory page

- Restore "Use cases" section
- Add intro phrases before Installation and Use-with-agent code blocks
- Point the binary prereq at the Installation section
- Drop the non-existent `cargo install perseus-vault` step
- Remove the "(formerly Mimir/Mneme)" lineage note
- Add trailing newline

* docs(integrations): restore Perseus live context (optional) section

Carry over the optional [perseus] extra / perseus_context_agent section
from the original page, updated to the Perseus Vault names.

---------

Co-authored-by: Kristopher Overholt <koverholt@google.com>

Author: tcconnally

docs/integrations/assets/mimir.svg

@@ -1,30 +1,30 @@
 ---
-catalog_title: Mimir Memory
+catalog_title: Perseus Vault Memory
 catalog_description: Add persistent, local, encrypted cross-session memory to ADK agents
-catalog_icon: /integrations/assets/mimir.svg
+catalog_icon: /integrations/assets/perseus-vault.svg
 catalog_tags: ["data"]
 ---
 
-# Mimir Memory integration for ADK
+# Perseus Vault Memory integration for ADK
 
 <div class="language-support-tag">
   <span class="lst-supported">Supported in ADK</span><span class="lst-python">Python</span>
 </div>
 
-The [`adk-mimir-memory`](https://github.com/Perseus-Computing-LLC/adk-mimir-memory)
+The [`adk-perseus-vault-memory`](https://github.com/Perseus-Computing-LLC/adk-mimir-memory)
 integration connects your ADK agent to
-[Mimir](https://github.com/Perseus-Computing-LLC/mimir), a persistent,
-cross-session memory backend. Backed by a single Rust binary with an embedded
-SQLite database, it requires **zero cloud dependencies**, and everything runs
-locally. Memory is encrypted at rest with AES-256-GCM, and search combines FTS5
-keyword matching with dense vector retrieval.
+[Perseus Vault](https://github.com/Perseus-Computing-LLC/perseus-vault), a
+persistent, cross-session memory backend. Backed by a single Rust binary with an
+embedded SQLite database, it requires **zero cloud dependencies**, and everything
+runs locally. Memory is encrypted at rest with AES-256-GCM, and search combines
+FTS5 keyword matching with dense vector retrieval.
 
 ## Use cases
 
 - **Persistent agent memory across restarts**: Sessions survive process
   restarts, and agents recall past conversations automatically
-- **Private, air-gapped deployments**: No cloud dependency, and Mimir runs
-  entirely on your machine with optional AES-256-GCM encryption
+- **Private, air-gapped deployments**: No cloud dependency, and Perseus Vault
+  runs entirely on your machine with optional AES-256-GCM encryption
 - **Hybrid search across memories**: Combine keyword (FTS5/BM25) and semantic
   (dense vector) search to find relevant past interactions
 - **Workspace-aware agents**: Pair with Perseus for agents that know about your
@@ -33,29 +33,31 @@ keyword matching with dense vector retrieval.
 ## Prerequisites
 
 - Python 3.10+
-- The `mimir` binary (see [Installation](#installation))
+- The `perseus-vault` binary (see [Installation](#installation))
 - `google-adk>=1.0.0`
 
 ## Installation
 
 Install the Python package:
 
 ```bash
-pip install adk-mimir-memory
+pip install adk-perseus-vault-memory
 ```
 
-Then install the `mimir` binary: download the build for your platform from the
-[Mimir releases page](https://github.com/Perseus-Computing-LLC/mimir/releases)
-and place it on your `PATH`. The service looks for `mimir` by default, or pass
-`mimir_binary="/absolute/path/to/mimir"` to `MimirMemoryService`.
+Then install the `perseus-vault` binary: download the build for your platform
+from the
+[releases page](https://github.com/Perseus-Computing-LLC/perseus-vault/releases)
+and place it on your `PATH`. The service looks for `perseus-vault` by default, or
+pass `vault_binary="/absolute/path/to/perseus-vault"` to
+`PerseusVaultMemoryService`.
 
 ## Use with agent
 
-Create the `MimirMemoryService`, pass it to your `Runner`, and give the agent
-the `load_memory` tool so it can recall past sessions:
+Create the `PerseusVaultMemoryService`, pass it to your `Runner`, and give the
+agent the `load_memory` tool so it can recall past sessions:
 
 ```python
-from adk_mimir_memory import MimirMemoryService
+from adk_perseus_vault_memory import PerseusVaultMemoryService
 from google.adk.agents import Agent
 from google.adk.runners import Runner
 from google.adk.sessions import InMemorySessionService
@@ -70,30 +72,30 @@ agent = Agent(
 
 runner = Runner(
     agent=agent,
-    app_name="mimir_app",
+    app_name="perseus_vault_app",
     session_service=InMemorySessionService(),
-    memory_service=MimirMemoryService(db_path="~/.adk/mimir.db"),
+    memory_service=PerseusVaultMemoryService(db_path="~/.adk/vault.db"),
 )
 ```
 
-After a session completes, call
-`await memory_service.add_session_to_memory(session)` to persist it. The agent
-recalls relevant memories in later sessions through the `load_memory` tool. See
-[ADK memory](/sessions/memory/) for the full ingest-and-recall flow.
+After a session completes, call `await memory_service.add_session_to_memory(session)`
+to persist it; the agent recalls memories in later sessions through the
+`load_memory` tool. See [ADK memory](/sessions/memory/) for the full
+ingest-and-recall flow.
 
 ### Perseus live context (optional)
 
 For live workspace awareness, install the `perseus` extra:
 
 ```bash
-pip install adk-mimir-memory[perseus]
+pip install adk-perseus-vault-memory[perseus]
 ```
 
 Then use the prebuilt `perseus_context_agent`, which resolves `@file`,
 `@search`, and `@memory` directives at inference time:
 
 ```python
-from adk_mimir_memory.perseus_context import perseus_context_agent
+from adk_perseus_vault_memory.perseus_context import perseus_context_agent
 from google.adk.runners import Runner
 from google.adk.sessions import InMemorySessionService
 
@@ -104,7 +106,7 @@ runner = Runner(
     agent=perseus_context_agent,
     app_name="perseus_app",
     session_service=InMemorySessionService(),
-    memory_service=MimirMemoryService(db_path="~/.adk/mimir.db"),
+    memory_service=PerseusVaultMemoryService(db_path="~/.adk/vault.db"),
 )
 ```
 
@@ -136,13 +138,13 @@ session = await runner.session_service.create_session(
 | Backend | Dependencies | At-rest encryption | Search | Hosting |
 |---|---|---|---|---|
 | **InMemoryMemoryService** | None | Not persisted | Keyword | Local (ephemeral) |
-| **VertexAiMemoryBankService** | Google Cloud | Google-managed (CMEK optional) | Semantic (Gemini) | Google Cloud |
-| **VertexAiRagMemoryService** | Google Cloud | Google-managed (CMEK optional) | Vector similarity | Google Cloud |
-| **MimirMemoryService** | `mimir` binary | Local AES-256-GCM (optional) | Hybrid (FTS5 + dense) | Local |
+| **VertexAiMemoryBankService** | Google Cloud | Google-managed | Semantic (Gemini) | Google Cloud |
+| **VertexAiRagMemoryService** | Google Cloud | Google-managed | Vector similarity | Google Cloud |
+| **PerseusVaultMemoryService** | `perseus-vault` binary | Local AES-256-GCM | Hybrid (FTS5 + dense) | Local |
 
 ## Resources
 
-- [adk-mimir-memory on GitHub](https://github.com/Perseus-Computing-LLC/adk-mimir-memory)
-- [adk-mimir-memory on PyPI](https://pypi.org/project/adk-mimir-memory/)
-- [Mimir (backing service)](https://github.com/Perseus-Computing-LLC/mimir)
+- [adk-perseus-vault-memory on GitHub](https://github.com/Perseus-Computing-LLC/adk-mimir-memory)
+- [adk-perseus-vault-memory on PyPI](https://pypi.org/project/adk-perseus-vault-memory/)
+- [Perseus Vault (backing service)](https://github.com/Perseus-Computing-LLC/perseus-vault)
 - [Perseus Context integration](/integrations/perseus/)

docs/integrations/assets/perseus-vault.svg

@@ -21,7 +21,7 @@ retrieval index, no embeddings, and no extra LLM round-trip. Everything runs
 locally.
 
 Perseus is a context compiler, not a memory or RAG backend. For persistent
-cross-session memory, pair it with its companion, [Mimir](/integrations/mimir/).
+cross-session memory, pair it with its companion, [Perseus Vault](/integrations/perseus-vault/).
 
 ## Use cases
 
@@ -164,4 +164,4 @@ agent = Agent(
 - [adk-perseus-context on GitHub](https://github.com/Perseus-Computing-LLC/adk-perseus-context)
 - [adk-perseus-context on PyPI](https://pypi.org/project/adk-perseus-context/)
 - [Perseus (context engine)](https://github.com/Perseus-Computing-LLC/perseus)
-- [Mimir Memory integration](/integrations/mimir/)
+- [Perseus Vault Memory integration](/integrations/perseus-vault/)

docs/integrations/mimir.md docs/integrations/perseus-vault.mddocs/integrations/mimir.md renamed to docs/integrations/perseus-vault.md

@@ -206,6 +206,7 @@ plugins:
         'observability/freeplay.md': 'integrations/freeplay.md'
         'observability/mlflow.md': 'integrations/mlflow-tracing.md'
         'integrations/mlflow.md': 'integrations/mlflow-tracing.md'
+        'integrations/mimir.md': 'integrations/perseus-vault.md'
         'observability/monocle.md': 'integrations/monocle.md'
         'observability/phoenix.md': 'integrations/phoenix.md'
         'observability/weave.md': 'integrations/weave.md'