Corbah: open line for agents
REMOTE · CORBAH-AGENTS.CORBAH.WORKERS.DEV
Talk to cycling brand Corbah, get team kit quotes, commission designs, browse the catalog.
Available components
Last scanned (5 hours ago)
Scores higher than 58% of remote servers
Reachable. Last reached 18 Oct 2026.
Category E-commerce
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 Security63
- 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. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement. View diagnostics → Unverified
- 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 Usability55
- 38% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Partial
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 2164 tokens (~135/item across 16 items; 11 tools + 5 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 Coverage91
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 73% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- All 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation.Pass
- An AI judge read all 13 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.
- 18 Oct 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.
- 16 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.
- 14 Oct 26 +1
- Server version: 0.5.0 → 0.5.1 functional
- 12 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.
- 10 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
- 9 Oct 26 63
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 18 Oct 2026 · Probed https://corbah-agents.corbah.workers.dev/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=corbah.workers.dev | CN=YE1,O=Let's Encrypt,C=US | 6 Oct 2026 | 4 Jan 2027 | ECDSA 256 | ECDSA-SHA384 | 5ca6510debafd0d3e50d1757203cd8f4dc2 |
| SANs: *.corbah.workers.dev, corbah.workers.dev | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of corbah-agents.corbah.workers.dev. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| dev. | present | 60074 | 8 | Verified |
| workers.dev. | 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://corbah-agents.corbah.workers.dev/mcp | Verified | 200 | |
| http (plaintext) | http://corbah-agents.corbah.workers.dev/mcp | Inconclusive | 405 |
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 →
about_corbah About this line ~32
Read what this line is, what Jon would like to hear about, and where Corbah's store data lives.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
ask_corbah Ask Corbah ~74
Talk to Corbah's agent: ask about the brand, designs, sizing, made-to-order timing, custom kit, or think through an idea together. It answers right away. For anything Jon needs to act on, use send_message or commission_design.
| Name | Type | Req | Description |
|---|---|---|---|
| question | string | yes | What you want to ask or discuss. |
No output schema declared.
No examples provided.
browse_catalog Browse Corbah's catalog ~169
Search Corbah's live catalog of cycling jerseys, bib shorts, skinsuits and accessories. All filters optional. Returns titles, prices (USD), sizes in stock, short descriptions, images and product URLs.
| Name | Type | Req | Description |
|---|---|---|---|
| collection | string | – | Collection handle (see list_collections) |
| include_unavailable | boolean | – | – |
| limit | integer | – | – |
| max_price | number | – | Maximum price in USD |
| offset | integer | – | – |
| q | string | – | Free-text search, e.g. 'women bib shorts', 'camo', 'skinsuit' |
| size | string | – | Only products available in this size, e.g. 'MD' |
| type | string | – | Product type, e.g. 'Cycling Jersey', 'Bib Shorts', 'Skinsuit' |
No output schema declared.
No examples provided.
check_reply Check for Jon's reply ~43
Check whether Jon has answered a message or commission you sent. Use the reference and token you got back.
| Name | Type | Req | Description |
|---|---|---|---|
| reference | integer | yes | – |
| token | string | yes | – |
No output schema declared.
No examples provided.
commission_design Commission a jersey design ~203
Ask Corbah to design custom cycling kit: for a club, team, event, ride, person or idea. Describe what you want in any detail you have. Jon reviews it and replies with a proof or quote on your private reply link. Nothing is charged by this call.
| Name | Type | Req | Description |
|---|---|---|---|
| brief | string | yes | What it's for and what it should feel like: story, colors, motifs, references. |
| budget | string | – | – |
| callback_url | string | – | Optional https URL. Corbah POSTs to it when Jon replies. |
| deadline | string | – | When it's needed, if there's a date. |
| for_whom | string | – | Club, team, event, or person. |
| image_urls | array | – | Optional reference images or logos (links). |
| items | string | – | e.g. '12 jerseys and 12 bib shorts', or 'one jersey'. |
| reply_to | string | – | Email or URL where a person can be answered. |
No output schema declared.
No examples provided.
get_product Get a product ~39
Full details for one product by handle: description, every size and price, availability, images, collections and ordering notes.
| Name | Type | Req | Description |
|---|---|---|---|
| handle | string | yes | – |
No output schema declared.
No examples provided.
list_collections List collections ~39
Corbah's collections and design series (e.g. Weekend Warrior, Classics, World Lines) with descriptions and how many products are available in each.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
quote_team_kit Team kit quote ~376
Plan and price custom kit for a club or team: riders, pieces, optional size split and the date it's needed. Returns an instant order summary, an estimate that is at most Corbah's current store prices (team pricing is quoted by Jon and is often lower), the date artwork must be approved by, and next steps. Set send=true to send the request to Corbah for a real quote; otherwise nothing is sent.
| Name | Type | Req | Description |
|---|---|---|---|
| callback_url | string | – | Optional https URL; Corbah POSTs to it when Jon replies |
| design | string | – | help = needs design help, kd = designed in Corbah's Kit Designer, have = artwork ready |
| each_rider | array | – | Shortcut: give every rider one of these pieces, e.g. ["ssj","bib"] |
| needed_by | string | – | Date the kit is needed, YYYY-MM-DD |
| notes | string | – | Colors, logos, event, budget, anything else |
| pieces | object | – | Quantity of each piece. Keys: ssj (short sleeve jersey), lsj (long sleeve jersey), bib (bib shorts), sui (skinsuit / tri suit), ves (wind vest), jac (jacket), arm (arm warmers), sho (shoe covers). |
| reply_to | string | – | Email of the person Jon should reply to (needed if send=true) |
| riders | integer | – | – |
| send | boolean | – | true = send this request to Corbah for a real quote. Default false (estimate only). |
| sizes | object | – | Optional size split, e.g. {"S":3,"M":6,"L":3}. Sizes: XS, S, M, L, XL, 2XL, 3XL. |
| team | string | – | Team or club name |
No output schema declared.
No examples provided.
send_message Send a message to Jon ~110
Send anything to Jon, the founder of Corbah: a question, idea, request, proposal or note. No format required. Returns a reference and a private reply link.
| Name | Type | Req | Description |
|---|---|---|---|
| callback_url | string | – | Optional https URL. Corbah POSTs to it when Jon replies. |
| from | string | – | Optional: who or what you are. |
| message | string | yes | Whatever you want to say. |
| reply_to | string | – | Optional: an email address or URL where you can be answered. |
No output schema declared.
No examples provided.
subscribe_updates Subscribe to updates ~47
Get notified when Corbah releases new products. Give an https callback URL; Corbah POSTs a JSON event to it. Returns a token to unsubscribe.
| Name | Type | Req | Description |
|---|---|---|---|
| callback_url | string | yes | – |
No output schema declared.
No examples provided.
unsubscribe_updates Unsubscribe ~26
Stop update notifications, using the token from subscribe_updates.
| Name | Type | Req | Description |
|---|---|---|---|
| token | string | yes | – |
No output schema declared.
No examples provided.
How do I install the Corbah: open line for agents MCP server?
Corbah: open line for agents is a hosted endpoint at https://corbah-agents.corbah.workers.dev/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 · corbah-agents.corbah.workers.dev
claude mcp add --transport http com-corbah-open-line 'https://corbah-agents.corbah.workers.dev/mcp'
What is the Corbah: open line for agents MCP server?
Corbah: open line for agents is an MCP server listed in the public MCP registry as com.corbah/open-line. Talk to cycling brand Corbah, get team kit quotes, commission designs, browse the catalog. This page covers its hosted endpoint (https://corbah-agents.corbah.workers.dev/mcp).
Is the Corbah: open line for agents MCP server safe to use?
Corbah: open line for agents scores 68 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 Corbah: open line for agents MCP server expose?
Corbah: open line for agents exposes 11 tools: ask_corbah, commission_design, quote_team_kit, send_message, check_reply, and 6 more. Their descriptions and schemas cost roughly 1,158 tokens of context every time the server is loaded.
Does the Corbah: open line for agents MCP server require authentication?
No. We connected to Corbah: open line for agents without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Corbah: open line for agents MCP server still maintained?
Corbah: open line for agents is still listed as active in the MCP registry. We last reached this channel on 18 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.