# io.github.davidmosiah/delx-memory (npm · delx-memory)

Local-first persistent memory MCP: shared SQLite key/value store, searchable, TTL-aware, secret-safe

- Trust score: 70/100 (medium)
- Change this week: +45
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `delx-memory`: 70/100 (this document), [markdown](https://verifymcp.io/servers/davidmosiah-delx-memory/delx-memory.md), [page](https://verifymcp.io/servers/davidmosiah-delx-memory/delx-memory)

## Channel facts

- Registry: `npm`
- Package: `delx-memory`
- Version: `0.2.3`
- 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**: 87/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (129 of 130), 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 (129 of 130), 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 3 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 77/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 806 tokens (~100/item across 8 items; 8 tools + 0 resources), lean.
  - 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 davidmosiah-delx-memory -- npx -y delx-memory
```

### Codex

```bash
codex mcp add davidmosiah-delx-memory -- npx -y delx-memory
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add davidmosiah-delx-memory --command npx --arg -y --arg delx-memory
```

### Hermes

```yaml
mcp_servers:
  davidmosiah-delx-memory:
    command: "npx"
    args: ["-y", "delx-memory"]
```

### Other

```json
{
  "mcpServers": {
    "davidmosiah-delx-memory": {
      "command": "npx",
      "args": [
        "-y",
        "delx-memory"
      ]
    }
  }
}
```

## 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 70, +4)

- [functional improvement] Stability: unverified → 0.27

### 2026-08-02 (score 66, +61)

- [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] Tool coverage: unverified → 100
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] License: unverified → pass
- [functional improvement] Schema quality: unverified → excellent
- [functional improvement] Dependency health: unverified → partial
- [functional] Licence: MIT

### 2026-08-01 (score 5, −33)

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

### 2026-07-31 (score 38, +13)

- [security regression] Provenance: unverified → fail
- [security regression] Malware scan: pass → unverified
- [security improvement] Install scripts: unverified → pass
- [functional regression] Dependency health: partial → unverified
- [functional improvement] Tool coverage: unverified → 100
- [functional improvement] License: unverified → pass
- [functional improvement] Maintenance: unverified → pass
- [functional] Licence: MIT

### 2026-07-29 (score 25, −21)

- [functional regression] Tool coverage: 100 → unverified
- [functional improvement] Dependency health: unverified → partial

### 2026-07-28 (score 46, +21)

- [functional regression] Dependency health: partial → unverified
- [functional improvement] Tool coverage: unverified → 100
- [functional] First check of Schema quality: unverified
- [functional] First check of Schema quality: pass
- [functional] First check of Schema quality: fail
- [functional] First check of Tool coverage: 100

### 2026-07-27 (score 25)

First indexed and scored.

## MCP tools (8)

### `memory_get` (~54 tokens)

Get one memory entry by key

Exact key lookup. Returns the stored value plus timestamps, ttl, tags, metadata. Returns null if missing or expired.

Input parameters:

- `key` (string, required): Stable identifier for the memory entry. Free-form text. Treat as case-sensitive.

### `memory_list` (~82 tokens)

List memory keys (not values)

List keys with optional prefix or tag filter. Returns keys + timestamps + tags only — call memory_get for values. Use this first on a new session to discover what is stored.

Input parameters:

- `limit` (integer): Max keys to return.
- `prefix` (string): Only return keys starting with this string.
- `tag` (string): Only return keys carrying this tag.

### `memory_search` (~118 tokens)

Keyword search across keys and values

Full-text search across keys, values AND tags. Uses an FTS5 index with bm25 relevance ranking (key-weighted), word-stemming, diacritic folding and prefix matching — so multi-word, partial and accent-insensitive queries all hit, ranked by relevance. Falls back to a LIKE substring scan if the SQLite build lacks FTS5. Returns top N matches with a snippet. Case-insensitive.

Input parameters:

- `limit` (integer): Max matches to return.
- `query` (string, required): Keyword query. Matched against keys and values.

### `memory_stats` (~37 tokens)

Memory store stats

High-level stats about the local memory store. Safe to call first on every session to gauge whether the store is empty, small, or large.

### `memory_set` (~190 tokens)

Upsert a memory entry (requires explicit_user_intent)

Create or update a key in memory. Rejects credential-shaped keys or values. Requires explicit_user_intent: true. Returns whether the row was created or updated.

Input parameters:

- `explicit_user_intent` (boolean, required): Must be true. Set ONLY when the current user message explicitly asks the agent to modify memory (set/forget/export). Do not infer intent.
- `key` (string, required): Stable identifier for the memory entry. Free-form text. Treat as case-sensitive.
- `metadata` (object): Optional small JSON object with provenance/notes. Subject to same secret-detection rules.
- `tags` (array): Optional list of tags for grouping/filter/bulk-delete.
- `ttl_seconds` (integer): Optional TTL in seconds. After this, the entry is lazy-deleted on next read.
- `value` (required): The value to store. Will be JSON-serialized. Rejected if it looks like a credential.

### `memory_forget` (~98 tokens)

Delete one memory entry (requires explicit_user_intent)

Delete a single key from memory. Idempotent: returns existed=false if the key was not present. Requires explicit_user_intent: true.

Input parameters:

- `explicit_user_intent` (boolean, required): Must be true. Set ONLY when the current user message explicitly asks the agent to modify memory (set/forget/export). Do not infer intent.
- `key` (string, required): Stable identifier for the memory entry. Free-form text. Treat as case-sensitive.

### `memory_forget_by_tag` (~80 tokens)

Bulk-delete entries by tag (requires explicit_user_intent)

Delete every entry carrying the given tag. Returns deleted_count. Requires explicit_user_intent: true.

Input parameters:

- `explicit_user_intent` (boolean, required): Must be true. Set ONLY when the current user message explicitly asks the agent to modify memory (set/forget/export). Do not infer intent.
- `tag` (string, required): Tag to bulk-delete.

### `memory_export` (~147 tokens)

Export memory contents (requires explicit_user_intent)

Dump the memory store as JSON, JSONL, or Markdown. Optional since/until window on updated_at. Use for backup/inspection. Requires explicit_user_intent: true.

Input parameters:

- `explicit_user_intent` (boolean, required): Must be true. Set ONLY when the current user message explicitly asks the agent to modify memory (set/forget/export). Do not infer intent.
- `format` (string, required): Output format: json (single object), jsonl (one entry per line), markdown (human-friendly).
- `since` (integer): Unix ms timestamp — include only entries with updated_at >= since.
- `until` (integer): Unix ms timestamp — include only entries with updated_at <= until.

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/davidmosiah-delx-memory/delx-memory#diagnostics

## Score history

- 2026-08-03: 70
- 2026-08-02: 66
- 2026-08-01: 5
- 2026-07-31: 38
- 2026-07-29: 25
- 2026-07-28: 46
- 2026-07-27: 25

## Links

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