# Promptlint MCP (npm · promptlint-mcp)

Static linter for AI prompts: contradictions, redundancy, ambiguity, and fluff.

- Trust score: 65/100 (medium)
- Change this week: +19
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `promptlint-mcp`: 65/100 (this document), [markdown](https://verifymcp.io/servers/sean-sunagaku-promptlint-mcp/promptlint-mcp.md), [page](https://verifymcp.io/servers/sean-sunagaku-promptlint-mcp/promptlint-mcp)

## Channel facts

- Registry: `npm`
- Package: `promptlint-mcp`
- Version: `0.1.3`
- 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**: 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 100 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 217 tokens (~108/item across 2 items; 2 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **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.

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### Claude

```bash
claude mcp add sean-sunagaku-promptlint-mcp -- npx -y promptlint-mcp
```

### Codex

```bash
codex mcp add sean-sunagaku-promptlint-mcp -- npx -y promptlint-mcp
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add sean-sunagaku-promptlint-mcp --command npx --arg -y --arg promptlint-mcp
```

### Hermes

```yaml
mcp_servers:
  sean-sunagaku-promptlint-mcp:
    command: "npx"
    args: ["-y", "promptlint-mcp"]
```

### Other

```json
{
  "mcpServers": {
    "sean-sunagaku-promptlint-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "promptlint-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.

### 2026-08-02 (score 65, +44)

- [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 regression] Tool coverage: 100 → unverified
- [functional regression] Security disclosure: fail → unverified
- [functional improvement] Schema quality: unverified → excellent
- [functional improvement] License: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] MCP protocol: unverified → pass
- [functional] First check of Schema quality: unverified
- [functional] Licence: MIT

### 2026-07-31 (score 21, −25)

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

### 2026-07-27 (score 46)

First indexed and scored.

## MCP tools (2)

### `lint_prompt` (~103 tokens)

Static-analyze an AI prompt (system prompt, agent instructions, tool definitions) for contradictions, redundancy, ambiguity, long examples, and politeness fluff. Returns a score (0–100), issue list, trimmed version, and token savings. Response has two text content items: [0] human summary, [1] full JSON — parse with JSON.parse(result.content[1].text) for structured access.

Input parameters:

- `text` (string, required): The prompt text to analyze.

### `trim_prompt` (~114 tokens)

Return a mechanically-trimmed version of the prompt with politeness fluff removed and whitespace compacted. Scope: drops sentences whose core intent is thanks/apology/invitation-to-ask (e.g. 'Thank you for …', 'Let me know if …'); removes 'Please'/'Kindly' prefixes and re-capitalizes. Does NOT resolve contradictions, redundancy, or ambiguity — run lint_prompt for those. Fenced code blocks are preserved verbatim.

Input parameters:

- `text` (string, required): The prompt text to trim.

## Diagnostics

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

## Score history

- 2026-08-03: 65
- 2026-08-02: 65
- 2026-08-01: 21
- 2026-07-31: 21
- 2026-07-30: 46
- 2026-07-28: 46
- 2026-07-27: 46

## Links

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