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...
Available components
Last scanned (7 hours ago)
Scores higher than 95% of remote servers
Reachable. Last reached 6 Nov 2026.
Category Education and Research
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. How we score → Why this is hard to score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Nothing on it is marked destructive, but we can't show that an anonymous caller can only read: full credit needs the server to list at least one tool and every tool to be verifiably read-only. We use a best-effort check of tool names and descriptions to tell read-only tools from tools that change things, so some genuinely read-only tools may not get full credit. Names that start with a read verb (get, list, read, search and similar) and accurate readOnlyHint annotations help. Meet that to earn full credit, or require authorisation. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability79
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 807 tokens (~89/item across 9 items; 9 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 9 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 10 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Checks we ran (13)
- TLS certificate
- Authorization
- HTTPS
- HSTS header
- DNSSEC
- Transport
- Schema quality
- Stability
- Tool coverage
- Injection markers
- Destructive annotations
- Judged manipulation
- MCP protocol
Does not apply to this hosted endpoint (2)
- Supply Chain SecurityScored on package channels only. This is a hosted endpoint, so there is nothing to install or inspect.
- Provenance & TransparencyScored on package channels only. This is a hosted endpoint, so there is nothing to install or inspect.
The score does not measure everything. What the score does not measure →
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 6 Nov 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 5 Nov 26 0
- Stability: 0.97 → pass security
- 4 Nov 26 0
- Stability: pass → 0.97 functional
- 25 Oct 26 +3
- Stability: fail → pass ▲ security
- 21 Oct 26 0
- Tool “get_guide” rewrote its description, which is the text the model reads security
- 10 Oct 26 −3
- Stability: pass → fail ▼ security
- 9 Oct 26 +1
- Stability: 0.93 → pass security
- 6 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 87 to 93. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 6 Nov 2026 · Probed https://penwright.ink/api/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=penwright.ink | CN=YR2,O=Let's Encrypt,C=US | 30 Oct 2026 | 28 Jan 2027 | RSA 2048 | SHA256-RSA | 687f725c72b18c965b766e7ce8176ef5a68 |
| SANs: penwright.ink, www.penwright.ink | ||||||
| CN=YR2,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | 4ebd24947e24d394802d84a52fd5b319 |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of penwright.ink. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | Trust anchor | 20326, 38696 | 8, 8 | Verified |
| ink. | DS published | 19420 | 13 | Verified |
| penwright.ink. | No DS | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://penwright.ink/api/mcp | Verified | 200 | |
| http (plaintext) | http://penwright.ink/api/mcp | HTTPS enforced | 308 | https://penwright.ink/api/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
choose_camp Choose your camp on a guide's debates ~125
Given a guide slug and one pick per debate ('A', 'B', or skip, in debate order, as a single string e.g. 'ABAB'), returns which library ids argue the picked side of each debate and the union reading list. Pure compute over public debate data — no book text is generated.
| Name | Type | Req | Description |
|---|---|---|---|
| guide | string | yes | Guide slug (e.g. memoir-writing, nonfiction-writing, fiction-writing, getting-published). |
| picks | string | – | One char per debate in order: A, B, or any other char (or omit) for skip. |
| Name | Type | Req | Description |
|---|---|---|---|
| canonicalUrl | string | yes | – |
| contract | string | yes | – |
| guideCanonicalUrl | string | yes | – |
| guideSlug | string | yes | – |
| guideTitle | string | yes | – |
| libraryIds | array | yes | – |
| picks | array | yes | – |
No examples provided.
get_answer Get one Answer (contract v0) ~64
Get one Answer — question, grounded answer, visible citations — by id or slug, in the Answer contract v0 shape (ANSWERS-PROGRAM.md). Read-only. Returns null if not found.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | The Answer's stable id or slug. |
| Name | Type | Req | Description |
|---|---|---|---|
| access | string | yes | – |
| answer | string | yes | – |
| canonicalUrl | string | yes | – |
| citations | array | yes | – |
| contentHash | string | yes | – |
| generatedBy | object | yes | – |
| home | string | yes | – |
| id | string | yes | – |
| question | string | yes | – |
| relatedGuides | array | – | – |
| shortAnswer | string | yes | – |
| slug | string | yes | – |
| status | string | yes | – |
| updatedAt | string | yes | – |
| version | number | yes | – |
No examples provided.
get_debate Get a debate: where the writing-craft books split ~136
Returns one debate — a named tension between poles argued by different books on the same capability guide, with stakes, guidance, and the library ids of resolvable authors on either side. Known slugs (38): memoir-sentence-craft-or-structural-architecture-first, memoir-daily-discipline-or-trusting-inspiration, memoir-memoir-for-healing-or-for-readers, memoir-factual-accuracy-or-emotional-truth, memoir-chase-publication-or-intrinsic-reward, ….
| Name | Type | Req | Description |
|---|---|---|---|
| slug | string | yes | Debate slug (e.g. memoir-factual-accuracy-or-emotional-truth). |
| Name | Type | Req | Description |
|---|---|---|---|
| canonicalUrl | string | yes | – |
| contract | string | yes | – |
| guidance | string | yes | – |
| guideCanonicalUrl | string | yes | – |
| guideSlug | string | yes | – |
| guideTitle | string | yes | – |
| libraryIds | array | yes | – |
| name | string | yes | – |
| poles | array | yes | – |
| slug | string | yes | – |
| stakes | string|null | yes | – |
| topic | string | yes | – |
No examples provided.
get_guide Get a grounded writing-craft guide's metadata ~104
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 (23): memoir-writing, nonfiction-writing, fiction-writing, getting-published, self-publishing, book-marketing, design-a-publication, typography-and-layout, ….
| Name | Type | Req | Description |
|---|---|---|---|
| slug | string | yes | Guide slug (e.g. memoir-writing, fiction-writing, getting-published, self-publishing). |
| Name | Type | Req | Description |
|---|---|---|---|
| access | string | yes | – |
| books | number|null | yes | – |
| canonicalUrl | string | yes | – |
| contract | string | yes | – |
| guideType | string|null | yes | – |
| live | boolean | yes | – |
| readingTimeMin | number|null | yes | – |
| slug | string | yes | – |
| subtitle | string | yes | – |
| title | string | yes | – |
| updated | string|null | yes | – |
No examples provided.
get_library_work Get a writing-craft library work ~55
Returns one writing-craft library work's bibliographic record and (when profiled) its thesis.
| Name | Type | Req | Description |
|---|---|---|---|
| libraryId | string | yes | Library catalog id (e.g. libce6efaa49e6f0175). |
| Name | Type | Req | Description |
|---|---|---|---|
| author | string|null | yes | – |
| canonicalUrl | string | yes | – |
| contract | string | yes | – |
| libraryId | string | yes | – |
| logline | string|null | yes | – |
| pitch | string|null | yes | – |
| tags | array | yes | – |
| title | string | yes | – |
| year | number|null | yes | – |
No examples provided.
get_magazine_piece Get a multi-voice Writers'-Desk magazine piece ~74
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.
| Name | Type | Req | Description |
|---|---|---|---|
| slug | string | yes | Magazine piece slug. |
| Name | Type | Req | Description |
|---|---|---|---|
| canonicalUrl | string | yes | – |
| contract | string | yes | – |
| editor | object | yes | – |
| editorCoda | string | yes | – |
| format | string | yes | – |
| generated | string | yes | – |
| question | string | yes | – |
| sections | array | yes | – |
| slug | string | yes | – |
| title | string | yes | – |
No examples provided.
list_answers List Answers (contract v0) ~64
List Answers (contract v0), paginated with an opaque cursor. Read-only.
| Name | Type | Req | Description |
|---|---|---|---|
| cursor | string | – | Opaque pagination cursor from a previous list_answers call's nextCursor. |
| limit | integer | – | Max answers to return (default 25, capped 200). |
| Name | Type | Req | Description |
|---|---|---|---|
| contract | string | yes | – |
| count | number | yes | – |
| items | array | yes | – |
| nextCursor | string|null | yes | – |
No examples provided.
search_answers Search Answers (contract v0) by free text ~64
Search Answers by free-text query over question/answer text. Returns contract v0 records. Read-only.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max results to return (default 25, capped 200). |
| query | string | yes | Free-text query matched against question/answer text. |
| Name | Type | Req | Description |
|---|---|---|---|
| contract | string | yes | – |
| count | number | yes | – |
| query | string | yes | – |
| results | array | yes | – |
No examples provided.
search_library Search the writing-craft library catalog ~82
Search or list Penwright's writing-craft book library by title/author substring and/or property tag. No filters returns the first page.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max rows to return (default 25, max 100). |
| query | string | – | Case-insensitive title/author substring. |
| tag | string | – | Case-insensitive property-tag substring. |
| Name | Type | Req | Description |
|---|---|---|---|
| contract | string | yes | – |
| count | number | yes | – |
| query | string|null | yes | – |
| results | array | yes | – |
| tag | string|null | yes | – |
| total | number | yes | – |
No examples provided.
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.
remote · penwright.ink
claude mcp add --transport http ink-penwright-discovery 'https://penwright.ink/api/mcp'
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 88 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 9 tools: search_library, get_library_work, get_guide, get_magazine_piece, get_debate, and 4 more. Their descriptions and schemas cost roughly 768 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 6 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What did VerifyMCP test on the Penwright — writing-craft library, guide metadata, and… MCP server?
VerifyMCP ran 13 checks on Penwright — writing-craft library, guide metadata, and…, covering TLS certificate, Authorization, HTTPS, HSTS header and 9 more. Supply Chain Security and Provenance & Transparency do not apply to a hosted endpoint, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.