Yamagishi Lab: math-physics papers and separators
REMOTE · YAMAGISHI.SAKURAWEB.COM
Search 1,094 math-physics preprints (JA/EN, CC BY 4.0); prompts for separators and pi-factor roots.
Available components
Last scanned (7 hours ago)
Scores higher than 55% of remote servers
Reachable. Last reached 5 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 Security57
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 3 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- 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 Usability78
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 480 tokens (~160/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management37
- Stability observed for 11 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
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
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 4 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
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.
- 5 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.
- 2 Nov 26 +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.
- 31 Oct 26 +1
- The server rewrote its instructions, which are the text every model session reads security
- Tool “search_papers” rewrote its description, which is the text the model reads security
- 29 Oct 26 +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.
- 27 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 26 Oct 26 0
- Stability: unverified → 0.03 ▲ functional
- 25 Oct 26 65
First indexed and scored.
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 5 Nov 2026 · Probed https://yamagishi.sakuraweb.com/mcp/
TLS valid
Negotiated TLS 1.3 with TLS_AES_256_GCM_SHA384 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=*.sakura.ne.jp | CN=Gehirn RSA Domain Validation Secure Server CA 2,O=Gehirn Inc.,C=JP | 1 May 2026 | 15 Nov 2026 | RSA 2048 | SHA256-RSA | 7a88f56a4009f66fd9a646fe1ce327f1 |
| SANs: *.sakura.ne.jp, *.180r.com, *.2-d.jp, *.achoo.jp, *.amaretto.jp, *.bona.jp, *.chew.jp, *.crap.jp, *.daynight.jp, *.deko8.jp, *.dojin.com, *.eek.jp and 52 more | ||||||
| CN=Gehirn RSA Domain Validation Secure Server CA 2,O=Gehirn Inc.,C=JP (CA) | CN=Sectigo Public Server Authentication Root R46,O=Sectigo Limited,C=GB | 14 May 2025 | 13 May 2035 | RSA 3072 | SHA384-RSA | 1a0510a9059be67683c0aa011bae2b07 |
| CN=Sectigo Public Server Authentication Root R46,O=Sectigo Limited,C=GB (CA) | CN=USERTrust RSA Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=US | 22 Mar 2021 | 18 Jan 2038 | RSA 4096 | SHA384-RSA | d27fbbc1de359e5216ad6149586099c4 |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of yamagishi.sakuraweb.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| sakuraweb.com. | absent | 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 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://yamagishi.sakuraweb.com/mcp/ | Verified | 200 | |
| http (plaintext) | http://yamagishi.sakuraweb.com/mcp/ | HTTPS enforced | 302 | https://yamagishi.sakuraweb.com/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 →
get_paper ~78
論文の番号から、題名・副題・分離子の一文・要旨（日本語と英語）・キーワード・YOI の住所・DOI を返す。
| Name | Type | Req | Description |
|---|---|---|---|
| number | integer | yes | 論文の番号（47 は欠番で 46 に統合） |
No output schema declared.
No examples provided.
list_separators ~109
副題に「分離子は、…」と書いた論文の一覧（分離子の一文と YOI の住所）。query を書けば、その語を含む分離子だけ。
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | 何本まで（省くと 20） |
| query | string | – | 分離子の一文に含まれる語（例：次元・単位・境界）。省くと新しい順 |
No output schema declared.
No examples provided.
search_papers ~152
山岸ラボの数理物理の論文（1〜1104）を、語で探す。題名・副題（分離子の一文を含む）・キーワード・要旨を見る。日本語でも英語でもよい。
| Name | Type | Req | Description |
|---|---|---|---|
| field | string | – | どこを探すか（省くと all） |
| limit | integer | – | 何本まで（省くと 10） |
| query | string | yes | 探す語（例：4π・立体角・別根・ホログラフィー・Kolmogorov）。空白で区切ると、全部を含むものだけ |
No output schema declared.
No examples provided.
How do I install the Yamagishi Lab: math-physics papers and separators MCP server?
Yamagishi Lab: math-physics papers and separators is a hosted endpoint at https://yamagishi.sakuraweb.com/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 · yamagishi.sakuraweb.com
claude mcp add --transport http com-sakuraweb-yamagishi-physics-papers 'https://yamagishi.sakuraweb.com/mcp/'
What is the Yamagishi Lab: math-physics papers and separators MCP server?
Yamagishi Lab: math-physics papers and separators is an MCP server listed in the public MCP registry as com.sakuraweb.yamagishi/physics-papers. Search 1,094 math-physics preprints (JA/EN, CC BY 4.0); prompts for separators and pi-factor roots. This page covers its hosted endpoint (https://yamagishi.sakuraweb.com/mcp/).
Is the Yamagishi Lab: math-physics papers and separators MCP server safe to use?
Yamagishi Lab: math-physics papers and separators scores 70 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 Yamagishi Lab: math-physics papers and separators MCP server expose?
Yamagishi Lab: math-physics papers and separators exposes 3 tools: search_papers, get_paper, list_separators. Their descriptions and schemas cost roughly 339 tokens of context every time the server is loaded.
Does the Yamagishi Lab: math-physics papers and separators MCP server require authentication?
No. We connected to Yamagishi Lab: math-physics papers and separators without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Yamagishi Lab: math-physics papers and separators MCP server still maintained?
Yamagishi Lab: math-physics papers and separators 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.