# io.github.nickjazz/product-lock-mcp (npm · product-lock-mcp)

Product Lock tools for AI agents: generate, review, validate, and score locks.

- Trust score: 63/100 (medium)
- Change this week: +23
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

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

## Channel facts

- Registry: `npm`
- Package: `product-lock-mcp`
- Version: `0.1.1`
- 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 (95 of 99), 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 (95 of 99), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 19/100
  - Repository check failed: the declared repository URL returned HTTP 404.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 166 days ago).
  - Security-disclosure policy not yet verified: we couldn't inspect the source repository.
- **Schema Quality & AI Usability**: 71/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 428 tokens (~85/item across 5 items; 5 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 23/100
  - Stability observed for 7 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 nickjazz-product-lock-mcp -- npx -y product-lock-mcp
```

### Codex

```bash
codex mcp add nickjazz-product-lock-mcp -- npx -y product-lock-mcp
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add nickjazz-product-lock-mcp --command npx --arg -y --arg product-lock-mcp
```

### Hermes

```yaml
mcp_servers:
  nickjazz-product-lock-mcp:
    command: "npx"
    args: ["-y", "product-lock-mcp"]
```

### Other

```json
{
  "mcpServers": {
    "nickjazz-product-lock-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "product-lock-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 → 0.23

### 2026-08-02 (score 59, +35)

- [security regression] Provenance: fail → unverified
- [security regression] Install scripts: pass → unverified
- [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] License: pass → unverified
- [functional regression] Tool coverage: 100 → unverified
- [functional regression] Maintenance: pass → unverified
- [functional improvement] Schema quality: unverified → good
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional] Licence: MIT

### 2026-08-01 (score 24, −7)

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

### 2026-07-31 (score 31, +11)

- [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 20, −20)

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

### 2026-07-27 (score 40)

First indexed and scored.

## MCP tools (5)

### `generate_lock` (~69 tokens)

Scan a project's codebase and provide context + guide for generating a product.lock.json. Returns scanned files and the generator guide so the AI can produce a lock file.

Input parameters:

- `author` (string): Author name for the lock file
- `projectPath` (string, required): Absolute path to the project root directory

### `review_lock` (~69 tokens)

Review a product.lock.json against its codebase. Parses the lock, validates structure, scans the project, and returns everything with the reviewer guide for AI analysis.

Input parameters:

- `lockPath` (string, required): Absolute path to product.lock.json
- `projectPath` (string, required): Absolute path to the project root directory

### `calculate_score` (~49 tokens)

Calculate the Product Lock Score (PLS) from a product.lock.json. Returns a deterministic score breakdown with D/F/I/A dimensions.

Input parameters:

- `lockPath` (string, required): Absolute path to product.lock.json

### `validate_lock` (~45 tokens)

Validate a product.lock.json against 14 structural rules. Returns a deterministic pass/fail table with errors and warnings.

Input parameters:

- `lockPath` (string, required): Absolute path to product.lock.json

### `create_worklog` (~196 tokens)

Generate a formatted worklog markdown entry for a development session. Pure template — no AI needed.

Input parameters:

- `agent` (string): Who did the work
- `branch` (string, required): Git branch name
- `changes` (array, required): List of changes made
- `date` (string, required): Session date in YYYY-MM-DD format
- `decisions` (string): Key decisions made and why
- `files` (array): Files touched in this session
- `goal` (string, required): One sentence: what this session set out to do
- `lockDelta` (string): What changed in product.lock.json
- `lockVersion` (string): Lock version before this session
- `next` (string): What the next session should pick up
- `plsAfter` (number): PLS score after this session
- `plsBefore` (number): PLS score before this session
- `title` (string, required): Session title (short description)

## Diagnostics

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

## Score history

- 2026-08-03: 63
- 2026-08-02: 59
- 2026-08-01: 24
- 2026-07-31: 31
- 2026-07-29: 20
- 2026-07-28: 40
- 2026-07-27: 40

## Links

- npm package: https://www.npmjs.com/package/product-lock-mcp
- Socket report: https://socket.dev/npm/package/product-lock-mcp
- Changelog RSS feed: https://verifymcp.io/servers/nickjazz-product-lock-mcp/product-lock-mcp/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/nickjazz-product-lock-mcp/product-lock-mcp/changelog.json
- HTML version of this page: https://verifymcp.io/servers/nickjazz-product-lock-mcp/product-lock-mcp