# Hindsight MemPalace (npm · hindsight-mempalace-mcp)

Self-hosted long-term memory for AI agents over MCP — hierarchical recall backed by pgvector

- Trust score: 63/100 (medium)
- Change this week: +19
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `hindsight-mempalace-mcp`: 63/100 (this document), [markdown](https://verifymcp.io/servers/holetron-hindsight-mempalace/hindsight-mempalace-mcp.md), [page](https://verifymcp.io/servers/holetron-hindsight-mempalace/hindsight-mempalace-mcp)

## Channel facts

- Registry: `npm`
- Package: `hindsight-mempalace-mcp`
- Version: `1.0.0`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Supply Chain Security**: 86/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (94 of 98), so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (94 of 98), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 36 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 44/100
  - 0% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 710 tokens (~118/item across 6 items; 5 tools + 1 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add holetron-hindsight-mempalace -- npx -y hindsight-mempalace-mcp
```

### Codex

```bash
codex mcp add holetron-hindsight-mempalace -- npx -y hindsight-mempalace-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "holetron-hindsight-mempalace": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "hindsight-mempalace-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add holetron-hindsight-mempalace --command npx --arg -y --arg hindsight-mempalace-mcp
```

### Hermes

```yaml
mcp_servers:
  holetron-hindsight-mempalace:
    command: "npx"
    args: ["-y", "hindsight-mempalace-mcp"]
```

### Other

```json
{
  "mcpServers": {
    "holetron-hindsight-mempalace": {
      "command": "npx",
      "args": [
        "-y",
        "hindsight-mempalace-mcp"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-03 (score 63, +4)

- [functional improvement] Stability: unverified → 0.27

### 2026-08-02 (score 59, +40)

- [security regression] Provenance: unverified → fail
- [security improvement] Install scripts: unverified → pass
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Malware scan: unverified → pass
- [security] Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window).
- [functional improvement] License: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] Schema quality: unverified → good
- [functional improvement] MCP protocol: unverified → pass
- [functional] Licence: MIT

### 2026-08-01 (score 19, +14)

- [functional improvement] Schema quality: unverified → 0
- [functional improvement] Tool coverage: unverified → 100

### 2026-07-31 (score 5, −21)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 26, −18)

- [security regression] Malware scan: pass → unverified

### 2026-07-27 (score 44)

First indexed and scored.

## MCP tools (5)

### `memory_retain` (~221 tokens)

Save a fact, observation, or document to long-term memory with automatic room/hall classification. Rooms: auth, pipeline, schema, infrastructure, ui, api, deployment, monitoring, agent, general. Halls: fact, event, decision, preference, discovery, procedure, warning. Layers: L0=Identity (always loaded), L1=Critical, L2=Session (default), L3=Deep.

Input parameters:

- `bank_id` (string): Memory bank ID (default: mempalace-main)
- `context` (string): Context label (e.g. "meeting notes", "client call")
- `document_id` (string): Document ID to group related facts
- `hall` (string): Knowledge type (auto-classified if omitted)
- `layer` (string): Priority layer (default: L2)
- `room` (string): Topic room (auto-classified if omitted)
- `tags` (array): Tags for categorization
- `text` (string, required): The text to memorize — a fact, observation, or document content

### `memory_recall` (~140 tokens)

Search long-term memory for relevant facts. Uses semantic search with optional room/hall scoping for significantly improved retrieval accuracy. Supports layer cascade (L0 results always prioritized).

Input parameters:

- `bank_id` (string): Memory bank ID (default: mempalace-main)
- `hall`: Filter by hall(s): fact, event, decision, etc.
- `limit` (number): Max results (default: 10)
- `max_layer` (string): Max layer depth to search (default: L3 = all)
- `query` (string, required): What to search for in memory
- `room`: Filter by room(s) — applied before semantic search

### `memory_reflect` (~80 tokens)

Deep reasoning over memory — synthesizes facts, finds patterns, answers complex questions with citations. Use for analysis: "What patterns emerge from recent events?" or "Summarize everything about X."

Input parameters:

- `bank_id` (string): Memory bank ID (default: mempalace-main)
- `query` (string, required): Question to reason about over stored memories

### `memory_compress` (~134 tokens)

Create compressed memory summaries (closets) from stored facts. Groups memories by room+hall and creates AI-generated summaries with source pointers. Use when a topic has accumulated many facts.

Input parameters:

- `bank_id` (string): Memory bank ID (default: mempalace-main)
- `hall` (string): Knowledge type to compress (e.g. "fact", "decision")
- `min_sources` (number): Min memories needed to create a closet (default: 5)
- `query` (string): Query to guide compression focus
- `room` (string): Topic to compress (e.g. "auth", "pipeline")

### `memory_bridge` (~130 tokens)

Create a cross-bank memory bridge (tunnel) between two related memories in different banks. Relations: same_concept, depends_on, contradicts, extends. Use when concepts in separate banks are related.

Input parameters:

- `confidence` (number): Confidence score 0.0–1.0 (default: 0.8)
- `relation` (string, required): Relationship type
- `source_bank` (string, required): Source bank ID
- `source_memory` (string, required): UUID of the source memory
- `target_bank` (string, required): Target bank ID
- `target_memory` (string, required): UUID of the target memory

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/holetron-hindsight-mempalace/hindsight-mempalace-mcp#diagnostics

## Score history

- 2026-08-03: 63
- 2026-08-02: 59
- 2026-08-01: 19
- 2026-07-31: 5
- 2026-07-30: 26
- 2026-07-28: 44
- 2026-07-27: 44

## Links

- npm package: https://www.npmjs.com/package/hindsight-mempalace-mcp
- Socket report: https://socket.dev/npm/package/hindsight-mempalace-mcp
- Repository: https://github.com/holetron/hindsight-mempalace
- Changelog RSS feed: https://verifymcp.io/servers/holetron-hindsight-mempalace/hindsight-mempalace-mcp/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/holetron-hindsight-mempalace/hindsight-mempalace-mcp/changelog.json
- HTML version of this page: https://verifymcp.io/servers/holetron-hindsight-mempalace/hindsight-mempalace-mcp