# Penwright — writing-craft library, guide metadata, and magazine (remote · penwright.ink)

Read-only access to Penwright's writing-craft book library, grounded guide metadata (card-level...

- Trust score: 81/100 (high trust)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-22

## Components

- remote · `penwright.ink`: 81/100 (this document), [markdown](https://verifymcp.io/servers/ink-penwright-discovery/api-mcp.md), [page](https://verifymcp.io/servers/ink-penwright-discovery/api-mcp)

## Channel facts

- Endpoint: `https://penwright.ink/api/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, 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 2026-09-22.

- **Endpoint Security**: 80/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 78/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 403 tokens (~80/item across 5 items; 5 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 47/100
  - Stability observed for 14 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.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 6 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 Penwright — writing-craft library, guide metadata, and… MCP server?

Penwright — writing-craft library, guide metadata, and… is a hosted endpoint at https://penwright.ink/api/mcp, so there is nothing to install locally. 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 --transport http ink-penwright-discovery 'https://penwright.ink/api/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "ink-penwright-discovery": {
      "url": "https://penwright.ink/api/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "ink-penwright-discovery": {
      "type": "http",
      "url": "https://penwright.ink/api/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.ink-penwright-discovery]
url = "https://penwright.ink/api/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ink-penwright-discovery": {
      "type": "remote",
      "url": "https://penwright.ink/api/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add ink-penwright-discovery --url 'https://penwright.ink/api/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  ink-penwright-discovery:
    url: "https://penwright.ink/api/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "ink-penwright-discovery": {
      "Transport": "http",
      "Url": "https://penwright.ink/api/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add ink-penwright-discovery -t streamable-http -u 'https://penwright.ink/api/mcp'
```

### Other

```json
{
  "mcpServers": {
    "ink-penwright-discovery": {
      "type": "http",
      "url": "https://penwright.ink/api/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## 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.

### 2026-09-22 (score 81, +1)

No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-20 (score 80, +1)

No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-16 (score 78, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-14 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-12 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-10 (score 75, 0)

- [functional regression] Schema quality: 354 → 403
- [functional] Server version: 1.0.0 → 1.1.0
- [functional] New tool “get_membership_offer”

### 2026-09-09 (score 75, 0)

- [security] The server rewrote its instructions, which are the text every model session reads
- [functional regression] Schema quality: 78 → 88
- [functional improvement] Stability: unverified → 0.03

## MCP tools (5)

### `search_library` (~82 tokens)

Search the writing-craft library catalog

Search or list Penwright's writing-craft book library by title/author substring and/or property tag. No filters returns the first page.

Input parameters:

- `limit` (integer): Max rows to return (default 25, max 100).
- `query` (string): Case-insensitive title/author substring.
- `tag` (string): Case-insensitive property-tag substring.

Output parameters:

- `contract` (string)
- `count` (number)
- `query` (string|null)
- `results` (array)
- `tag` (string|null)
- `total` (number)

### `get_library_work` (~55 tokens)

Get a writing-craft library work

Returns one writing-craft library work's bibliographic record and (when profiled) its thesis.

Input parameters:

- `libraryId` (string, required): Library catalog id (e.g. libce6efaa49e6f0175).

Output parameters:

- `author` (string|null)
- `canonicalUrl` (string)
- `contract` (string)
- `libraryId` (string)
- `logline` (string|null)
- `pitch` (string|null)
- `tags` (array)
- `title` (string)
- `year` (number|null)

### `get_guide` (~104 tokens)

Get a grounded writing-craft guide's metadata

Returns one live guide's title, subtitle, access, book count, and reading time — card-level metadata only, never the paid body/depth content. Known slugs (21): memoir-writing, nonfiction-writing, fiction-writing, getting-published, self-publishing, book-marketing, design-a-publication, typography-and-layout, ….

Input parameters:

- `slug` (string, required): Guide slug (e.g. memoir-writing, fiction-writing, getting-published, self-publishing).

Output parameters:

- `access` (string)
- `books` (number|null)
- `canonicalUrl` (string)
- `contract` (string)
- `guideType` (string|null)
- `live` (boolean)
- `readingTimeMin` (number|null)
- `slug` (string)
- `subtitle` (string)
- `title` (string)
- `updated` (string|null)

### `get_magazine_piece` (~74 tokens)

Get a multi-voice Writers'-Desk magazine piece

Returns one published magazine piece's question, per-writer sections, and editor's coda — the same content the human page renders, ungated. Known slugs (1): the-whole-room--my-memoir-keeps-stalling-i-can-write-scenes.

Input parameters:

- `slug` (string, required): Magazine piece slug.

Output parameters:

- `canonicalUrl` (string)
- `contract` (string)
- `editor` (object)
- `editorCoda` (string)
- `format` (string)
- `generated` (string)
- `question` (string)
- `sections` (array)
- `slug` (string)
- `title` (string)

### `get_membership_offer` (~49 tokens)

Get the Bicycle Cooperative membership offer

Returns the Writing chapter of the Bicycle Cooperative membership offer: five options (enterprise member, practitioner member, worker, practitioner rent, enterprise rent) with chapter substitution applied and this front's join URL.

Output parameters:

- `api_version` (string)
- `chapter` (string)
- `join_url` (string)
- `offer` (object)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/ink-penwright-discovery/api-mcp#diagnostics

## Score history

- 2026-09-22: 81
- 2026-09-21: 80
- 2026-09-20: 80
- 2026-09-19: 79
- 2026-09-18: 79
- 2026-09-17: 78
- 2026-09-16: 78
- 2026-09-15: 77
- 2026-09-14: 77
- 2026-09-13: 76
- 2026-09-12: 76
- 2026-09-11: 75
- 2026-09-10: 75
- 2026-09-09: 75
- 2026-09-08: 75

## Common questions

### What is the Penwright — writing-craft library, guide metadata, and… MCP server?

Penwright — writing-craft library, guide metadata, and… is an MCP server listed in the public MCP registry as ink.penwright/discovery. Read-only access to Penwright's writing-craft book library, grounded guide metadata (card-level... This page covers its hosted endpoint (https://penwright.ink/api/mcp).

### Is the Penwright — writing-craft library, guide metadata, and… MCP server safe to use?

Penwright — writing-craft library, guide metadata, and… scores 81 out of 100 on VerifyMCP. 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 Penwright — writing-craft library, guide metadata, and… MCP server expose?

Penwright — writing-craft library, guide metadata, and… exposes 5 tools: search_library, get_library_work, get_guide, get_magazine_piece, get_membership_offer. Their descriptions and schemas cost roughly 364 tokens of context every time the server is loaded.

### Does the Penwright — writing-craft library, guide metadata, and… MCP server require authentication?

No. We connected to Penwright — writing-craft library, guide metadata, and… without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Penwright — writing-craft library, guide metadata, and… MCP server still maintained?

Penwright — writing-craft library, guide metadata, and… is still listed as active in the MCP registry. We last reached this channel on 22 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://penwright.ink/api/mcp
- Website: https://penwright.ink/
- Changelog RSS feed: https://verifymcp.io/servers/ink-penwright-discovery/api-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/ink-penwright-discovery/api-mcp.json
- HTML version of this page: https://verifymcp.io/servers/ink-penwright-discovery/api-mcp