# Lancelot (npm · @ayerselectronics/lancelot)

An MCP server for search and retrieval over a local LanceDB database

- Trust score: 83/100 (high trust)
- Change this week: +20
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `mcp.ayers.repair`: 64/100, [markdown](https://verifymcp.io/servers/ayers-software-repair-lancelot/lancelot.md), [page](https://verifymcp.io/servers/ayers-software-repair-lancelot/lancelot)
- npm · `@ayerselectronics/lancelot`: 83/100 (this document), [markdown](https://verifymcp.io/servers/ayers-software-repair-lancelot/ayerselectronics-lancelot.md), [page](https://verifymcp.io/servers/ayers-software-repair-lancelot/ayerselectronics-lancelot)

## Channel facts

- Registry: `npm`
- Package: `@ayerselectronics/lancelot`
- Version: `0.3.3`
- 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 2026-11-05.

- **Supply Chain Security**: 98/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 72 of 229 dependencies flagged as unhealthy (1 deprecated).
- **Provenance & Transparency**: 100/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to ayers-software-repair/lancelot).
  - Clear OSI-approved license (Apache-2.0).
  - Actively maintained (last published 5 days ago).
  - Publishes a security disclosure policy (SECURITY.md).
- **Schema Quality & AI Usability**: 68/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 293 tokens (~73/item across 4 items; 4 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.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the Lancelot MCP server?

Lancelot runs locally as an npm package, launched with npx -y @ayerselectronics/lancelot. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add ayers-software-repair-lancelot -- npx -y @ayerselectronics/lancelot
```

### Cursor

```json
{
  "mcpServers": {
    "ayers-software-repair-lancelot": {
      "command": "npx",
      "args": [
        "-y",
        "@ayerselectronics/lancelot"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "ayers-software-repair-lancelot": {
      "command": "npx",
      "args": [
        "-y",
        "@ayerselectronics/lancelot"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add ayers-software-repair-lancelot -- npx -y @ayerselectronics/lancelot
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ayers-software-repair-lancelot": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@ayerselectronics/lancelot"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add ayers-software-repair-lancelot --command npx --arg -y --arg @ayerselectronics/lancelot
```

### Hermes

```yaml
mcp_servers:
  ayers-software-repair-lancelot:
    command: "npx"
    args: ["-y", "@ayerselectronics/lancelot"]
```

### Netclaw

```json
{
  "McpServers": {
    "ayers-software-repair-lancelot": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "@ayerselectronics/lancelot"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add ayers-software-repair-lancelot -t stdio -c npx -a -y @ayerselectronics/lancelot
```

### Other

```json
{
  "mcpServers": {
    "ayers-software-repair-lancelot": {
      "command": "npx",
      "args": [
        "-y",
        "@ayerselectronics/lancelot"
      ]
    }
  }
}
```

## 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.

### 2026-11-04 (score 83, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-02 (score 82, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-31 (score 81, +26)

- [security improvement] CVE-2023-54404 no longer affects this package
- [security improvement] CVE-2026-0621 no longer affects this package
- [security improvement] CVE-2026-111768 no longer affects this package
- [security improvement] CVE-2026-111771 no longer affects this package
- [security improvement] CVE-2026-111769 no longer affects this package
- [security improvement] GHSA-f897-62hf-6gxq no longer affects this package
- [security improvement] CVE-2026-25536 no longer affects this package
- [security improvement] CVE-2025-66414 no longer affects this package
- [security improvement] CVE-2026-104850 no longer affects this package
- [security improvement] Known CVEs: unverified → pass
- [security improvement] Malware scan: unverified → pass
- [functional improvement] Dependency health: unverified → 0.86

### 2026-10-30 (score 55, −8)

- [security regression] Known CVEs: fail → unverified
- [security regression] Malware scan: pass → unverified
- [security improvement] CVE-2025-66414 no longer affects this package
- [security improvement] CVE-2023-54404 no longer affects this package
- [security improvement] CVE-2026-25536 no longer affects this package
- [security improvement] CVE-2026-104850 no longer affects this package
- [security improvement] CVE-2026-111768 no longer affects this package
- [security improvement] CVE-2026-111771 no longer affects this package
- [security improvement] CVE-2026-0621 no longer affects this package
- [security improvement] CVE-2026-111769 no longer affects this package
- [security improvement] GHSA-f897-62hf-6gxq no longer affects this package
- [security improvement] Provenance: fail → pass
- [security improvement] Known CVEs: fail → pass
- [security] The attested source repository moved: ayers-software-repair/lancelot
- [functional regression] Dependency health: 0.85 → unverified
- [functional improvement] Stability: unverified → 0.07
- [functional improvement] MCP protocol: fail → pass
- [functional] Package version: 0.3.1 → 0.3.3
- [functional] Package version: 0.3.1 → 0.3.2

### 2026-10-29 (score 63, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-10-28 (score 48)

First indexed and scored.

## MCP tools (4)

### `lancedb_search` (~130 tokens)

Search LanceDB for relevant documents using vector or text search

Input parameters:

- `limit` (number): Maximum number of results (default: the configured limit, 20; at most 200)
- `query` (string, required): Search query string
- `searchType` (string): vector uses OpenAI embeddings, text matches words in the text column, auto uses vector when a key is set and text otherwise
- `table` (string): Table to search (default: the configured table)
- `textColumn` (string): Column holding the text
- `vectorColumn` (string): Column holding the vectors

### `lancedb_query` (~115 tokens)

RAG query with context retrieval from LanceDB

Input parameters:

- `contextBudget` (number): Maximum characters of context to return (default: the configured budget, 8000)
- `limit` (number): Maximum number of chunks to retrieve (default: the configured limit, 20; at most 200)
- `question` (string, required): The user's question
- `table` (string): Table to query (default: the configured table)
- `warmStart` (boolean): Retrieve a general project overview instead of answering the question

### `lancedb_status` (~31 tokens)

Get LanceDB status and statistics

Input parameters:

- `verbose` (boolean): Include the column names of each table

### `lancedb_version` (~17 tokens)

Show Lancelot version information

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/ayers-software-repair-lancelot/ayerselectronics-lancelot#diagnostics

## Score history

- 2026-11-05: 83
- 2026-11-04: 83
- 2026-11-03: 82
- 2026-11-02: 82
- 2026-11-01: 81
- 2026-10-31: 81
- 2026-10-30: 55
- 2026-10-29: 63
- 2026-10-28: 48

## Common questions

### What is the Lancelot MCP server?

Lancelot is an MCP server listed in the public MCP registry as io.github.ayers-software-repair/lancelot. An MCP server for search and retrieval over a local LanceDB database. This page covers its npm package (@ayerselectronics/lancelot).

### Is the Lancelot MCP server safe to use?

Lancelot scores 83 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the Lancelot MCP server expose?

Lancelot exposes 4 tools: lancedb_search, lancedb_query, lancedb_status, lancedb_version. Their descriptions and schemas cost roughly 293 tokens of context every time the server is loaded.

### Is the Lancelot MCP server still maintained?

Lancelot is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the Lancelot MCP server under?

Lancelot declares the Apache-2.0 licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- npm package: https://www.npmjs.com/package/@ayerselectronics/lancelot
- Socket report: https://socket.dev/npm/package/@ayerselectronics/lancelot
- Repository: https://github.com/ayers-software-repair/lancelot
- Website: https://ayers.repair/marketplace.html
- Changelog RSS feed: https://verifymcp.io/servers/ayers-software-repair-lancelot/ayerselectronics-lancelot.xml
- Changelog JSON feed: https://verifymcp.io/servers/ayers-software-repair-lancelot/ayerselectronics-lancelot.json
- HTML version of this page: https://verifymcp.io/servers/ayers-software-repair-lancelot/ayerselectronics-lancelot